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Insights into key factors controlling GO stability in natural surface waters

文献类型：期刊论文

作者Gao, Yang1,2; Ren, Xuemei1; Tan, Xiaoli1; Hayat, Tasawar3,4; Alsaedi, Ahmed3; Chen, Changlun1,2
刊名JOURNAL OF HAZARDOUS MATERIALS
出版日期2017-08-05
卷号335期号:无页码:56-65
关键词Natural Surface Waters Go Aggregation Mechanism Sedimentation
DOI10.1016/j.jhazmat.2017.04.027
文献子类Article
英文摘要The effects of pH, cations (Na+, Mg2+, Ca2+ and Al3+), and anions (Cl-, HCO3-, HPO42- and SO42-) on graphene oxide (GO) stability were investigated to address the current limitations in the knowledge regarding the stability of GO in natural surface water and its underlying mechanism. The threshold values of cations that destabilize GO were obtained and affected by both pH and anions. By employing elemental mapping and studying the effects of polyacrylic acid (PAA) on GO sedimentation and the re-dispersion of GO aggregates, we find that the GO aggregates induced by Na+ and K+ via electric double layer suppression and by Ca2+ and Al3+ via strong complxing are difficult to re-disperse completely. Specifically, more PAA is needed to re-disperse GO aggregates than to stabilize GO, which suggests that after GO binds with heavy metal ions. It is less likely to be transported over a long distance even in natural water that are rich in natural organic matter. Finally, we find that the key factor controlling GO sedimentation in natural surface waters is its binding with Mg2+ and Ca2+. This study is expected to provide critical knowledge to more accurately predict the fate of GO in natural surface aquatic environments. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词WALLED CARBON NANOTUBES ; GRAPHENE OXIDE ; AGGREGATION KINETICS ; COLLOIDAL STABILITY ; ORGANIC-MATTER ; AQUATIC ENVIRONMENTS ; INORGANIC COLLOIDS ; AQUEOUS-SOLUTIONS ; DIVALENT-CATIONS ; DEPOSITION
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000402948600007
资助机构National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; 21377132) ; 21377132) ; 21377132) ; 21377132) ; 21377132) ; 21377132) ; 21377132) ; 21377132) ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; National Natural Science Foundation of China(21477133 ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Anhui Provincial Natural Science Foundation(1608085QB44) ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; 21377132) ; 21377132) ; 21377132) ; 21377132) ; 21377132) ; 21377132) ; 21377132) ; 21377132)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31905]  
专题合肥物质科学研究院_中科院等离子体物理研究所
作者单位1.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China
2.Soochow Univ, Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, Suzhou 215123, Peoples R China
3.King Abdulaziz Univ, NAAM Res Grp, Jeddah 21589, Saudi Arabia
4.Quaid I Azam Univ, Dept Math, Islamabad 44000, Pakistan
推荐引用方式
GB/T 7714		 Gao, Yang,Ren, Xuemei,Tan, Xiaoli,et al. Insights into key factors controlling GO stability in natural surface waters[J]. JOURNAL OF HAZARDOUS MATERIALS,2017,335(无):56-65.
APA Gao, Yang,Ren, Xuemei,Tan, Xiaoli,Hayat, Tasawar,Alsaedi, Ahmed,&Chen, Changlun.(2017).Insights into key factors controlling GO stability in natural surface waters.JOURNAL OF HAZARDOUS MATERIALS,335(无),56-65.
MLA Gao, Yang,et al."Insights into key factors controlling GO stability in natural surface waters".JOURNAL OF HAZARDOUS MATERIALS 335.无(2017):56-65.

入库方式： OAI收割

来源：合肥物质科学研究院

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