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Construction of Gemini composite based on TiO2 pillared montmorillonite for efficient oil-water separation

文献类型：期刊论文

作者Wang, Yanhua1,3; Yan, Jingmin1,3; Li, Zhengchen1,3; Liu, Xiang1,3; Zhang, Xiaomeng1,2,3,4; Wei, Lianqi1,4; Ye, Shufeng1,4
刊名APPLIED SURFACE SCIENCE
出版日期2023-03-01
卷号612页码:11
关键词TiO2 pillared montmorillonite Gemini composite Surface construction Demulsification Adsorption Oil-water separation
ISSN号0169-4332
DOI10.1016/j.apsusc.2022.155977
英文摘要Owing to the changeable components of oil-water system and the inflexible limitation of available materials during oil-water separation, the treatment of oily wastewater with wide pH, large discharge and high COD value remains a great challenge. In this study, a simple strategy was used to construct Gemini composite based on TiO2 pillared montmorillonite. The resultant montmorillonite-based Gemini composite (QATMt-x) exhibited high surface area (116.54 m2 g-1), surface potential (18.8 mV at pH2), good acid and alkali resistance, amphiphilicmultifunctional surface, and defective layered structure and, as a result, delivered high capability (ED >= 96 %) and long cyclic life for oil-water separation. More significantly, detailed mechanism studies reveal that the crucial reasons of oil-water separation on microemulsion and aqueous containing organic contaminant are demulsification through electron capture of the grafted chitosan, and adsorption by lipophilic saturated alkanes, titanium hydrates, (metal) hydroxyl and amine group, respectively. Hence, QATMt-x is particularly suitable for efficient demulsification in acidic media (pH 2) and for the adsorption of ecotoxic organic substances (e.g., perfluorooctanoic acid, methyl blue). In short, construction of Gemini surfactants based on low-cost inorganic carriers would offer new strategies in exploring amphipathic dual-functional layered structures for simultaneously efficient separation of multisystem oil-water scenarios.
WOS关键词ORGANO-MONTMORILLONITE ; OIL/WATER SEPARATION ; ADSORPTION ; DEMULSIFICATION ; SURFACTANT ; BEHAVIOR
资助项目National Key R&D Program during the 14th Five-year Plan Period[2021YFB3500801] ; National Key R&D Program during the 14th Five-year Plan Period[2022YFB3504302] ; National Key R&D Program during the 14th Five-year Plan Period[2019YFC1908405] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM2020DB02] ; Chinese academy of science project[KFJSTS-QYZD-044]
WOS研究方向Chemistry ; Materials Science ; Physics
语种英语
WOS记录号WOS:000901207500004
出版者ELSEVIER
资助机构National Key R&D Program during the 14th Five-year Plan Period ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Chinese academy of science project
源URL[http://ir.ipe.ac.cn/handle/122111/56356]  
专题中国科学院过程工程研究所
通讯作者Zhang, Xiaomeng; Ye, Shufeng
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Ganjiang Innovat Acad, Beijing, Peoples R China
3.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Yanhua,Yan, Jingmin,Li, Zhengchen,et al. Construction of Gemini composite based on TiO2 pillared montmorillonite for efficient oil-water separation[J]. APPLIED SURFACE SCIENCE,2023,612:11.
APA Wang, Yanhua.,Yan, Jingmin.,Li, Zhengchen.,Liu, Xiang.,Zhang, Xiaomeng.,...&Ye, Shufeng.(2023).Construction of Gemini composite based on TiO2 pillared montmorillonite for efficient oil-water separation.APPLIED SURFACE SCIENCE,612,11.
MLA Wang, Yanhua,et al."Construction of Gemini composite based on TiO2 pillared montmorillonite for efficient oil-water separation".APPLIED SURFACE SCIENCE 612(2023):11.

入库方式： OAI收割

来源：过程工程研究所

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