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Dominating Role of Ionic Strength in the Sedimentation of Nano-TiO2 in Aquatic Environments

文献类型：期刊论文

作者He, Guang'an1; Chen, Rui1; Lu, Shushen1; Jiang, Chengchun2; Liu, Hong1,3; Wang, Chuan3
刊名JOURNAL OF NANOMATERIALS
出版日期2015
页码10
ISSN号1687-4110
DOI10.1155/2015/851928
通讯作者Liu, H (reprint author), Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China.
英文摘要Various factors affect the sedimentation behavior of nanotitanium dioxide (n-TiO2) in water. Accordingly, this study aimed to select the dominating factor. An index of sedimentation efficiency related to n-TiO2 concentration was applied to precisely describe the n-TiO2 sedimentation behavior. Ionic strength (IS), natural organic matter (NOM) content, and pH were evaluated in sedimentation experiments. An orthogonal experimental design was used to sequence the affecting ability of these factors. Furthermore, simulative sedimentation experiments were performed. The n-TiO2 sedimentation behavior was only affected by pH and NOM content at low levels of IS. Moreover, divalent cations can efficiently influence the n-TiO2 sedimentation behavior compared with monovalent cations at fixed IS. Seven different environmental water samples were also used to investigate the n-TiO2 sedimentation behavior in aquatic environments. Results confirmed that IS, in which divalent cations may play an important role, was the dominating factor influencing the n-TiO (2) sedimentation behavior in aquatic environments.
资助项目National Natural Science Foundation of China[21067004] ; National Natural Science Foundation of China[51378494] ; National Natural Science Foundation of China[51378316] ; Shenzhen Science and Technology Innovation Committee Program[JCYJ20130331151242230] ; One Hundred Talents program, CAS
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000363629400001
出版者HINDAWI PUBLISHING CORP
源URL[http://119.78.100.138/handle/2HOD01W0/1964]  
专题水污染过程与治理研究中心
通讯作者Liu, Hong
作者单位1.Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
2.Shenzhen Polytech, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China
3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 He, Guang'an,Chen, Rui,Lu, Shushen,et al. Dominating Role of Ionic Strength in the Sedimentation of Nano-TiO2 in Aquatic Environments[J]. JOURNAL OF NANOMATERIALS,2015:10.
APA He, Guang'an,Chen, Rui,Lu, Shushen,Jiang, Chengchun,Liu, Hong,&Wang, Chuan.(2015).Dominating Role of Ionic Strength in the Sedimentation of Nano-TiO2 in Aquatic Environments.JOURNAL OF NANOMATERIALS,10.
MLA He, Guang'an,et al."Dominating Role of Ionic Strength in the Sedimentation of Nano-TiO2 in Aquatic Environments".JOURNAL OF NANOMATERIALS (2015):10.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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