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| Construction of Gemini composite based on TiO2 pillared montmorillonite for efficient oil-water separation | |
Wang, Yanhua1,3; Yan, Jingmin1,3; Li, Zhengchen1,3; Liu, Xiang1,3; Zhang, Xiaomeng1,2,3,4 ; Wei, Lianqi1,4; Ye, Shufeng1,4
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| 2023-03-01 | |
| Source Publication | APPLIED SURFACE SCIENCE
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| ISSN | 0169-4332 |
| Volume | 612Pages:11 |
| Abstract | 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. |
| Keyword | TiO2 pillared montmorillonite Gemini composite Surface construction Demulsification Adsorption Oil-water separation |
| DOI | 10.1016/j.apsusc.2022.155977 |
| Language | 英语 |
| WOS Keyword | ORGANO-MONTMORILLONITE ; OIL/WATER SEPARATION ; ADSORPTION ; DEMULSIFICATION ; SURFACTANT ; BEHAVIOR |
| Funding Project | 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 Research Area | Chemistry ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| Funding Organization | 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 |
| WOS ID | WOS:000901207500004 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/56357 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhang, Xiaomeng; Ye, Shufeng |
| Affiliation | 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 |
| Recommended Citation 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. |
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