Base de dados : MEDLINE
Pesquisa : D01.650.550.850 [Categoria DeCS]
Referências encontradas : 420 [refinar]
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[PMID]:29478647
[Au] Autor:Yan J; Chen L; Lin Q; Zhao S; Li L
[Ad] Endereço:Key Laboratory of Global Change and Marine-Atmospheric Chemistry, Third Institute of Oceanography, SOA, Xiamen 361005, China. Electronic address: jpyan@tio.org.cn.
[Ti] Título:Pollutants identification of ambient aerosols by two types of aerosol mass spectrometers over southeast coastal area, China.
[So] Source:J Environ Sci (China);64:252-263, 2018 Feb.
[Is] ISSN:1001-0742
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Two different aerosol mass spectrometers, Aerodyne Aerosol Mass Spectrometer (AMS) and Single Particle Aerosol Mass Spectrometer (SPAMS) were deployed to identify the aerosol pollutants over Xiamen, representing the coastal urban area. Five obvious processes were classified during the whole observation period. Organics and sulfate were the dominant components in ambient aerosols over Xiamen. Most of the particles were in the size range of 0.2-1.0µm, accounting for over 97% of the total particles measured by both instruments. Organics, as well as sulfate, measured by AMS were in good correlation with measured by SPAMS. However, high concentration of NH was obtained by AMS, while extremely low value of NH was detected by SPAMS. Contrarily, high particle number counts of NO and Cl were given by SPAMS while low concentrations of NO and Cl were measured by AMS. The variations of POA and SOA obtained from SPAMS during event 1 and event 2 were in accordance with the analysis of HOA and OOA given by AMS, suggesting that both of AMS and SPAMS can well identify the organic clusters of aerosol particles. Overestimate or underestimate of the aerosol sources and acidity would be present in some circumstances when the measurement results were used to analyze the aerosol properties, because of the detection loss of some species for both instruments.
[Mh] Termos MeSH primário: Aerossóis/análise
Poluentes Atmosféricos/análise
Monitoramento Ambiental/instrumentação
Material Particulado/análise
[Mh] Termos MeSH secundário: China
Tamanho da Partícula
Sulfatos/análise
Óxidos de Enxofre/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Aerosols); 0 (Air Pollutants); 0 (Particulate Matter); 0 (Sulfates); 0 (Sulfur Oxides)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180227
[St] Status:MEDLINE


  2 / 420 MEDLINE  
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[PMID]:29032908
[Au] Autor:Li K; Song X; Zhu T; Wang C; Sun X; Ning P; Tang L
[Ad] Endereço:Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
[Ti] Título:Mechanistic and kinetic study on the catalytic hydrolysis of COS in small clusters of sulfuric acid.
[So] Source:Environ Pollut;232:615-623, 2018 Jan.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The catalytic hydrolysis of carbonyl sulfide (COS) and the effect of small clusters of H O and H SO have been studied by theoretical calculations. The addition of H SO could increase the enthalpy change (ΔH<0) and decrease relative energy of products (relative energy<0), resulting in hydrolysis reaction changed from an endothermic reaction to an exothermic reaction. Further, H SO decreases the energy barrier by 5.25 kcal/mol, and it enhances the catalytic hydrolysis through the hydrogen transfer effect. The (COS + H SO -H O) reaction has the lowest energy barrier of 29.97 kcal/mol. Although an excess addition of H O and H SO increases the energy barrier, decreases the catalytic hydrolysis, which is consistent with experimental observations. The order of the energy barriers for the three reactions from low to high are as follows: COS + H SO -H O < COS + H O + H SO -H O < COS + H O+(H SO ) . Kinetic simulations show that the addition of H SO can increase the reaction rate constants. Consequently, adding an appropriate amount of sulfuric acid promotes the catalytic hydrolysis of COS both kinetically and thermodynamically.
[Mh] Termos MeSH primário: Modelos Químicos
Óxidos de Enxofre/química
[Mh] Termos MeSH secundário: Catálise
Hidrogênio
Hidrólise
Cinética
Ácidos Sulfúricos/química
Termodinâmica
Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sulfur Oxides); 0 (Sulfuric Acids); 059QF0KO0R (Water); 7YNJ3PO35Z (Hydrogen); 871UI0ET21 (carbonyl sulfide); O40UQP6WCF (sulfuric acid)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180119
[Lr] Data última revisão:
180119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171017
[St] Status:MEDLINE


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[PMID]:28382993
[Au] Autor:Campbell JE; Berry JA; Seibt U; Smith SJ; Montzka SA; Launois T; Belviso S; Bopp L; Laine M
[Ad] Endereço:Sierra Nevada Research Institute, University of California, Merced, California 95343, USA.
[Ti] Título:Large historical growth in global terrestrial gross primary production.
[So] Source:Nature;544(7648):84-87, 2017 04 05.
[Is] ISSN:1476-4687
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Growth in terrestrial gross primary production (GPP)-the amount of carbon dioxide that is 'fixed' into organic material through the photosynthesis of land plants-may provide a negative feedback for climate change. It remains uncertain, however, to what extent biogeochemical processes can suppress global GPP growth. As a consequence, modelling estimates of terrestrial carbon storage, and of feedbacks between the carbon cycle and climate, remain poorly constrained. Here we present a global, measurement-based estimate of GPP growth during the twentieth century that is based on long-term atmospheric carbonyl sulfide (COS) records, derived from ice-core, firn and ambient air samples. We interpret these records using a model that simulates changes in COS concentration according to changes in its sources and sinks-including a large sink that is related to GPP. We find that the observation-based COS record is most consistent with simulations of climate and the carbon cycle that assume large GPP growth during the twentieth century (31% ± 5% growth; mean ± 95% confidence interval). Although this COS analysis does not directly constrain models of future GPP growth, it does provide a global-scale benchmark for historical carbon-cycle simulations.
[Mh] Termos MeSH primário: Ciclo do Carbono
Dióxido de Carbono/metabolismo
Mudança Climática/história
Fotossíntese
[Mh] Termos MeSH secundário: Regiões Antárticas
Atmosfera/química
Dióxido de Carbono/análise
Sequestro de Carbono
Mudança Climática/estatística & dados numéricos
Retroalimentação
Mapeamento Geográfico
História do Século XX
Camada de Gelo/química
Modelos Teóricos
Folhas de Planta/metabolismo
Óxidos de Enxofre/análise
[Pt] Tipo de publicação:HISTORICAL ARTICLE; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Sulfur Oxides); 142M471B3J (Carbon Dioxide); 871UI0ET21 (carbonyl sulfide)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170703
[Lr] Data última revisão:
170703
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170407
[St] Status:MEDLINE
[do] DOI:10.1038/nature22030


  4 / 420 MEDLINE  
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[PMID]:28300407
[Au] Autor:Zhang P; He Z; Van Nostrand JD; Qin Y; Deng Y; Wu L; Tu Q; Wang J; Schadt CW; W Fields M; Hazen TC; Arkin AP; Stahl DA; Zhou J
[Ad] Endereço:Institute for Environmental Genomics, Department of Microbiology and Plant Biology, and School of Civil Engineering and Environmental Sciences, University of Oklahoma , Norman, Oklahoma 73019, United States.
[Ti] Título:Dynamic Succession of Groundwater Sulfate-Reducing Communities during Prolonged Reduction of Uranium in a Contaminated Aquifer.
[So] Source:Environ Sci Technol;51(7):3609-3620, 2017 Apr 04.
[Is] ISSN:1520-5851
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:To further understand the diversity and dynamics of SRB in response to substrate amendment, we sequenced genes coding for the dissimilatory sulfite reductase (dsrA) in groundwater samples collected after an emulsified vegetable oil (EVO) amendment, which sustained U(VI)-reducing conditions for one year in a fast-flowing aquifer. EVO amendment significantly altered the composition of groundwater SRB communities. Sequences having no closely related-described species dominated (80%) the indigenous SRB communities in nonamended wells. After EVO amendment, Desulfococcus, Desulfobacterium, and Desulfovibrio, known for long-chain-fatty-acid, short-chain-fatty-acid and H oxidation and U(VI) reduction, became dominant accounting for 7 ± 2%, 21 ± 8%, and 55 ± 8% of the SRB communities, respectively. Succession of these SRB at different bioactivity stages based on redox substrates/products (acetate, SO , U(VI), NO , Fe(II), and Mn(II)) was observed. Desulfovibrio and Desulfococcus dominated SRB communities at 4-31 days, whereas Desulfobacterium became dominant at 80-140 days. By the end of the experiment (day 269), the abundance of these SRB decreased but the overall diversity of groundwater SRB was still higher than non-EVO controls. Up to 62% of the SRB community changes could be explained by groundwater geochemical variables, including those redox substrates/products. A significant (P < 0.001) correlation was observed between groundwater U(VI) concentrations and Desulfovibrio abundance. Our results showed that the members of SRB and their dynamics were correlated significantly with slow EVO biodegradation, electron donor production and maintenance of U(VI)-reducing conditions in the aquifer.
[Mh] Termos MeSH primário: Água Subterrânea/química
Urânio/metabolismo
[Mh] Termos MeSH secundário: Bactérias/metabolismo
Biodegradação Ambiental
Oxirredução
Sulfatos/química
Óxidos de Enxofre
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sulfates); 0 (Sulfur Oxides); 4OC371KSTK (Uranium)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170608
[Lr] Data última revisão:
170608
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170317
[St] Status:MEDLINE
[do] DOI:10.1021/acs.est.6b02980


  5 / 420 MEDLINE  
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[PMID]:28115125
[Au] Autor:Du Q; Mu Y; Zhang C; Liu J; Zhang Y; Liu C
[Ad] Endereço:Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: qqdu123@126.com.
[Ti] Título:Photochemical production of carbonyl sulfide, carbon disulfide and dimethyl sulfide in a lake water.
[So] Source:J Environ Sci (China);51:146-156, 2017 Jan.
[Is] ISSN:1001-0742
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Photochemical production of carbonyl sulfide (COS), carbon disulfide (CS ) and dimethyl sulfide (DMS) was intensively studied in the water from the Aohai Lake of Beijing city. The lake water was found to be highly supersaturated with COS, CS and DMS, with their initial concentrations of 0.91±0.073nmol/L, 0.55±0.071nmol/L and 0.37±0.062nmol/L, respectively. The evident photochemical production of COS and CS in the lake water under irradiation of 365nm and 302nm indicated that photochemical production of them might be the reason for their supersaturation. The similar dependence of wavelength and oxygen for photochemical production of COS, CS and DMS implied that they might be from the same precursors. The water cage effect was found to favor COS production but inhibit CS and DMS formation, indicating that COS photochemical production was mainly from direct degradation of the precursors and the formation of CS and DMS needed intermediates via combination of carbon-centered radicals and sulfur-centered radicals. The above assumptions were further confirmed by simulation experiments with addition of carbonyls and amino acids (cysteine and methionine), and the photochemical formation mechanisms for COS, CS and DMS in water were derived from the investigations.
[Mh] Termos MeSH primário: Dissulfeto de Carbono/química
Lagos/química
Modelos Químicos
Processos Fotoquímicos
Sulfetos/química
Óxidos de Enxofre/química
Poluentes Químicos da Água/química
[Mh] Termos MeSH secundário: Pequim
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sulfides); 0 (Sulfur Oxides); 0 (Water Pollutants, Chemical); 871UI0ET21 (carbonyl sulfide); QS3J7O7L3U (dimethyl sulfide); S54S8B99E8 (Carbon Disulfide)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170209
[Lr] Data última revisão:
170209
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170125
[St] Status:MEDLINE


  6 / 420 MEDLINE  
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[PMID]:27876164
[Au] Autor:Acquaye A; Feng K; Oppon E; Salhi S; Ibn-Mohammed T; Genovese A; Hubacek K
[Ad] Endereço:Kent Business School, University of Kent, Canterbury, CT2 7PE, UK.
[Ti] Título:Measuring the environmental sustainability performance of global supply chains: A multi-regional input-output analysis for carbon, sulphur oxide and water footprints.
[So] Source:J Environ Manage;187:571-585, 2017 Feb 01.
[Is] ISSN:1095-8630
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Measuring the performance of environmentally sustainable supply chains instead of chain constitute has become a challenge despite the convergence of the underlining principles of sustainable supply chain management. This challenge is exacerbated by the fact that supply chains are inherently dynamic and complex and also because multiple measures can be used to characterize performances. By identifying some of the critical issues in the literature regarding performance measurements, this paper contributes to the existing body of literature by adopting an environmental performance measurement approach for economic sectors. It uses economic sectors and evaluates them on a sectoral level in specific countries as well as part of the Global Value Chain based on the established multi-regional input-output (MRIO) modeling framework. The MRIO model has been used to calculate direct and indirect (that is supply chain or upstream) environmental effects such as CO , SO , biodiversity, water consumption and pollution to name just a few of the applications. In this paper we use MRIO analysis to calculate emissions and resource consumption intensities and footprints, direct and indirect impacts, and net emission flows between countries. These are exemplified by using carbon emissions, sulphur oxide emissions and water use in two highly polluting industries; Electricity production and Chemical industry in 33 countries, including the EU-27, Brazil, India and China, the USA, Canada and Japan from 1995 to 2009. Some of the highlights include: On average, direct carbon emissions in the electricity sector across all 27 member states of the EU was estimated to be 1368 million tons and indirect carbon emissions to be 470.7 million tons per year representing 25.6% of the EU-27 total carbon emissions related to this sector. It was also observed that from 2004, sulphur oxide emissions intensities in electricity production in India and China have remained relatively constant at about 62.8 gSO /, respectively, $ and 84.4 gSO /$ although being higher than in other countries. In terms of water use, the high water use intensity in China (1040.27 L/$) and India (961.63 L/$), which are among the highest in the sector in the electricity sector is exacerbated by both countries being ranked as High Water Stress Risk countries. The paper also highlights many advantages of the MRIO approach including: a 15-year time series study (which provides a measurement of environmental performance of key industries and an opportunity to assess technical and technological change during the investigated time period), a supply chain approach that provides a consistent methodological framework and accounts for all upstream supply chain environmental impacts throughout entire global supply chains. The paper also discusses the implications of the study to environmental sustainability performance measurement in terms of the level of analysis from a value chain hierarchy perspective, methodological issues, performance indicators, environmental exchanges and policy relevance.
[Mh] Termos MeSH primário: Poluentes Atmosféricos/química
Pegada de Carbono
Conservação dos Recursos Naturais
Abastecimento de Água
[Mh] Termos MeSH secundário: Meio Ambiente
Saúde Global
Seres Humanos
Modelos Teóricos
Óxidos de Enxofre/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Sulfur Oxides)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161124
[St] Status:MEDLINE


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[PMID]:27323277
[Au] Autor:Zhylitskaya HA; Chashchina NM; Litvinovskaya RP; Zavadskaya MI; Zhabinskii VN; Khripach VA
[Ad] Endereço:Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Kuprevich str. 5/2, 220141 Minsk, Belarus.
[Ti] Título:Synthesis of sulfated brassinosteroids.
[So] Source:Steroids;117:2-10, 2017 Jan.
[Is] ISSN:1878-5867
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A number of water soluble sulfates of 24-epibrassinolide including the 2α,3α-disulfate and all possible monosulfates were synthesized. The target compounds were isolated in crystalline form as the corresponding sodium salts. Pyridine-sulfur trioxide complex was used as sulfating agent followed by transformation of the resulting pyridinium salts into the sodium sulfates by treatment with NaOH. The control of the regioselectivity was achieved by an appropriate use of acetyl and benzyl protecting groups.
[Mh] Termos MeSH primário: Brassinosteroides/química
Brassinosteroides/síntese química
[Mh] Termos MeSH secundário: Acetatos/química
Espectroscopia de Ressonância Magnética
Estrutura Molecular
Estereoisomerismo
Esteroides Heterocíclicos/química
Sulfatos/química
Óxidos de Enxofre/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Acetates); 0 (Brassinosteroids); 0 (Steroids, Heterocyclic); 0 (Sulfates); 0 (Sulfur Oxides); 0YPR65R21J (sodium sulfate); HH2O7V4LYD (sulfur trioxide); Y9IQ1L53OX (brassinolide)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170830
[Lr] Data última revisão:
170830
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160621
[St] Status:MEDLINE


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[PMID]:27155837
[Au] Autor:El-Shafey EI; Al-Lawati HA; Al-Busafi S; Al-Shiraiqi B
[Ad] Endereço:Chemistry Department, Faculty of Science, Sultan Qaboos University, P.O. Box 36, Al-Khoudh, 123, Oman. dr_el_shafey2004@yahoo.co.uk.
[Ti] Título:Removal of Zn and SO from aqueous solutions on acidic and chelating dehydrated carbon.
[So] Source:Environ Sci Pollut Res Int;24(12):11066-11077, 2017 Apr.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The agricultural waste, date palm leaflets, was carbonized chemically using sulfuric acid treatment. Produced dehydrated carbon (DC) was subjected to surface functionalization using ethylene diamine producing chelating dehydrated carbon (CDC). In the process, ∼80 % of the carboxylic content on DC was converted to amide successfully. DC acts as a cation exchanger because of the high content of carboxylic groups on its surface showing acidic nature. However, CDC possesses amine and amide groups showing basic nature. Both amine and amide groups are capable of chelating Zn at high pH; however, at low pH, the amine group becomes protonated acting as anion exchanger. Sorption of Zn and SO was investigated in terms of contact time, initial pH, concentration, and carbon reuse. Zn shows maximum sorption at initial pH 5; however, maximum sorption of SO takes place at initial pH 2. Kinetic and equilibrium studies were carried out at initial 5 and 2 for Zn and SO , respectively. Sorption kinetics data follow well the pseudo second-order model. The equilibrium sorption data follow the Langmuir isotherm more than the Freundlich isotherm. CDC shows better sorption performance for Zn and SO than DC. DC and CDC show combined equimolar removal of both Zn and SO at initial pH 2.3 and 2.6, respectively, with efficient recycle properties. Combined removal of Zn and SO from spiked municipal wastewater shows less uptake on both carbons than from deionized water.
[Mh] Termos MeSH primário: Carbono/química
Quelantes/química
Óxidos de Enxofre/química
Purificação da Água
Zinco/química
[Mh] Termos MeSH secundário: Adsorção
Concentração de Íons de Hidrogênio
Cinética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Chelating Agents); 0 (Sulfur Oxides); 7440-44-0 (Carbon); J41CSQ7QDS (Zinc)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:171103
[Lr] Data última revisão:
171103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160509
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-016-6785-z


  9 / 420 MEDLINE  
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[PMID]:28061938
[Au] Autor:Peng SC; Xu X; Ma D; Chen TH; Wang J
[Ti] Título:Influence of Different Electron Acceptors on the Anaerobic Degradation of Curly-Leaf Pondweed.
[So] Source:Water Environ Res;88(12):2257-2259, 2016 Dec 01.
[Is] ISSN:1061-4303
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Curly-leaf pondweed (Potamogeton crispus) was utilized as the representative to investigate the biodecomposition process of aquatic plants under different reducible conditions. Results showed that the methane production was inhibited when different electron acceptors (Fe(III), and ) were available. The methane production was decreased by 57% when Fe(III) and or were both available compared to the control. The degradation efficiency of hemicellulose and lignin with Fe(III) and were increased significantly. This provided a theoretical basis for slowing down the emissions of methane.
[Mh] Termos MeSH primário: Potamogetonaceae/metabolismo
[Mh] Termos MeSH secundário: Anaerobiose
Biodegradação Ambiental
Ferro/química
Lignina
Metano/metabolismo
Nitratos/química
Óxidos de Enxofre/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Nitrates); 0 (Sulfur Oxides); 11132-73-3 (lignocellulose); 9005-53-2 (Lignin); E1UOL152H7 (Iron); OP0UW79H66 (Methane)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170315
[Lr] Data última revisão:
170315
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170108
[St] Status:MEDLINE
[do] DOI:10.2175/106143016X147336816958


  10 / 420 MEDLINE  
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[PMID]:27973365
[Au] Autor:Gasemloo S; Sohrabi MR; Khosravi M; Dastmalchi S; Gharbani P
[Ad] Endereço:Department of Chemistry, North Tehran Branch, Islamic Azad University, Tehran, Iran.
[Ti] Título:Fabrication of sulfated nanofilter membrane based on carboxymethyl cellulose.
[So] Source:Water Sci Technol;74(11):2611-2619, 2016 Dec.
[Is] ISSN:0273-1223
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The aim of this study is to prepare sulfated carboxymethyl cellulose (SCMC) nanofilter membrane using sulfur trioxide pyridine complex (SO /pyridine) as sulfating agent and glutaraldehyde (GA) as a crosslinking agent onto polysulfone supporting membrane. The prepared nanofilter was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, atomic force microscopy and zeta potential. To evaluate the prepared nanofilter, various amounts of SO /Pyridine were used and efficiency of them was investigated. The results showed that increasing the sulfate groups raised the flux from 13.87 to 29.54 L/(m ·h ), whereas percentage rejection was increased during the separation of salt aqueous solutions and then decreased. It can be concluded that, SCMC-GA-2 (with molar ratio of SO /pyridine to CMC of 1) shows high separation efficiency in acidic conditions and improves the hydrophilicity and charge density of the filter.
[Mh] Termos MeSH primário: Carboximetilcelulose Sódica/química
Membranas Artificiais
[Mh] Termos MeSH secundário: Filtração/instrumentação
Glutaral/química
Microscopia de Força Atômica
Microscopia Eletrônica de Varredura
Nanotecnologia
Polímeros/química
Piridinas/química
Espectroscopia de Infravermelho com Transformada de Fourier
Sulfatos/química
Sulfonas/química
Óxidos de Enxofre/química
Difração de Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Membranes, Artificial); 0 (Polymers); 0 (Pyridines); 0 (Sulfates); 0 (Sulfones); 0 (Sulfur Oxides); 25667-42-9 (polyether sulfone); HH2O7V4LYD (sulfur trioxide); K679OBS311 (Carboxymethylcellulose Sodium); T3C89M417N (Glutaral)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170615
[Lr] Data última revisão:
170615
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161216
[St] Status:MEDLINE



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BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde