Climate Change Data Portal
DOI | 10.1021/es5020828 |
Interactions of Graphene Oxide Nanomaterials with Natural Organic Matter and Metal Oxide Surfaces | |
Chowdhury, Indranil1; Duch, Matthew C.2,3,4; Mansukhani, Nikhita D.2,3,4; Hersam, Mark C.2,3,4; Bouchard, Dermont5 | |
发表日期 | 2014-08-19 |
ISSN | 0013-936X |
卷号 | 48期号:16页码:9382-9390 |
英文摘要 | Interactions of graphene oxide (GO) nanomaterials with natural organic matter (NOM) and metal oxide surfaces were investigated using a quartz crystal microbalance with dissipation monitoring (QCM-D). Three different types of NOM were studied: Suwannee River humic and fulvic acids (SRHA and SRFA) and alginate. Aluminum oxide surface was used as a model metal oxide surface. Deposition trends show that GO has the highest attachment on alginate, followed by SRFA, SRHA, and aluminum oxide surfaces, and that GO displayed higher interactions with all investigated surfaces than with silica. Deposition and release behavior of GO on aluminum oxide surface is very similar to positively charged poly-L-lysine-coated surface. Higher interactions of GO with NOM-coated surfaces are attributed to the hydroxyl, epoxy, and carboxyl functional groups of GO; higher deposition on alginate-coated surfaces is attributed to the rougher surface created by the extended conformation of the larger alginate macromolecules. Both ionic strength (IS) and ion valence (Na+ vs Ca2+) had notable impact on interactions of GO with different environmental surfaces. Due to charge screening, increased IS resulted in greater deposition for NOM-coated surfaces. Release behavior of deposited GO varied significantly between different environmental surfaces. All surfaces showed significant release of deposited GO upon introduction of low IS water, indicating that deposition of GO on these surfaces is reversible. Release of GO from NOM-coated surfaces decreased with IS due to charge screening. Release rates of deposited GO from alginate-coated surface were significantly lower than from SRHA and SRFA-coated surfaces due to trapping of GO within the rough surface of the alginate layer. |
语种 | 英语 |
WOS记录号 | WOS:000340701800054 |
来源期刊 | ENVIRONMENTAL SCIENCE & TECHNOLOGY |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/59060 |
作者单位 | 1.Natl Res Council Res Associate, Athens, GA 30605 USA; 2.Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA; 3.Northwestern Univ, Dept Chem, Evanston, IL 60208 USA; 4.Northwestern Univ, Dept Med, Evanston, IL 60208 USA; 5.US EPA, Natl Exposure Res Lab, Ecosyst Res Div, Athens, GA 30605 USA |
推荐引用方式 GB/T 7714 | Chowdhury, Indranil,Duch, Matthew C.,Mansukhani, Nikhita D.,et al. Interactions of Graphene Oxide Nanomaterials with Natural Organic Matter and Metal Oxide Surfaces[J]. 美国环保署,2014,48(16):9382-9390. |
APA | Chowdhury, Indranil,Duch, Matthew C.,Mansukhani, Nikhita D.,Hersam, Mark C.,&Bouchard, Dermont.(2014).Interactions of Graphene Oxide Nanomaterials with Natural Organic Matter and Metal Oxide Surfaces.ENVIRONMENTAL SCIENCE & TECHNOLOGY,48(16),9382-9390. |
MLA | Chowdhury, Indranil,et al."Interactions of Graphene Oxide Nanomaterials with Natural Organic Matter and Metal Oxide Surfaces".ENVIRONMENTAL SCIENCE & TECHNOLOGY 48.16(2014):9382-9390. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。