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Efficient Demulsification of Acidic Oil-In-Water Emulsions with Silane-Coupled Modified TiO2 Pillared Montmorillonite
Zuo, Gaohong1,2; Du, Yingchao2,3; Wei, Lianqi2; Yu, Bo2,3; Ye, Shufeng2; Zhang, Xiaomeng2; Hao, Hongshun1
2019-03-01
Source PublicationAPPLIED SCIENCES-BASEL
ISSN2076-3417
Volume9Issue:5Pages:13
AbstractEmulsified pickling waste liquid, derived from cleaning oily hardware, cause serious environmental and ecological issues. In this work, a series of grafted (3-aminopropyl)triethoxysilane (APTES) TiO2 pillared montmorillonite (Mt), Ti-Mt-APTES, are prepared and characterized for their assessment in demulsification of acidic oil-in-water emulsion. After titanium hydrate is introduced through ion exchange, montmorillonite is modified by hydrophobic groups coming from APTES. The Ti-Mt-APTES in acidic oil-in-water emulsion demulsification performance and mechanism are studied. Results show that the prepared Ti-Mt-APTES has favorable demulsification performance. The Ti-Mt-APTES demulsification efficiency (E-D) increased to an upper limit value when the mass ratio of APTES to the prepared TiO2 pillared montmorillonite (Ti-Mt) (R-A/M) was 0.10 g/g, and the 5 h is the optimal continuous stirring time for breaking the acidic oil-in-water emulsion by Ti-Mt-APTES. The E-D increased to 94.8% when 2.5 g/L of Ti-Mt-APTES is added into the acidic oil-in-water emulsion after 5 h. An examination of the demulsification mechanism revealed that amphiphilicity and electrostatic interaction both played vital roles in oil-in-water separation. It is demonstrated that Ti-Mt-APTES is a promising, economical demulsifier for the efficient treatment of acidic oil-in-water emulsions.
Keywordmodified montmorillonite oil-in-water emulsion acidic demulsification silane couple grafting
DOI10.3390/app9051008
Language英语
WOS KeywordEMULSIFIED OIL ; MAGNETIC NANOPARTICLES ; METHYLENE-BLUE ; SEPARATION
Funding ProjectChinese Academy of Science Key Project[KFJ-STS-QYZD-044] ; "Strategic Priority Research Program" of Chinese Academy of Science[XDA09040102]
WOS Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
Funding OrganizationChinese Academy of Science Key Project ; "Strategic Priority Research Program" of Chinese Academy of Science
WOS IDWOS:000462504400195
PublisherMDPI
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28311
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Xiaomeng; Hao, Hongshun
Affiliation1.Dalian Polytech Univ, Sch Text & Mat Engn, 1 Light Ind Court, Dalian 116034, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, 19 Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zuo, Gaohong,Du, Yingchao,Wei, Lianqi,et al. Efficient Demulsification of Acidic Oil-In-Water Emulsions with Silane-Coupled Modified TiO2 Pillared Montmorillonite[J]. APPLIED SCIENCES-BASEL,2019,9(5):13.
APA Zuo, Gaohong.,Du, Yingchao.,Wei, Lianqi.,Yu, Bo.,Ye, Shufeng.,...&Hao, Hongshun.(2019).Efficient Demulsification of Acidic Oil-In-Water Emulsions with Silane-Coupled Modified TiO2 Pillared Montmorillonite.APPLIED SCIENCES-BASEL,9(5),13.
MLA Zuo, Gaohong,et al."Efficient Demulsification of Acidic Oil-In-Water Emulsions with Silane-Coupled Modified TiO2 Pillared Montmorillonite".APPLIED SCIENCES-BASEL 9.5(2019):13.
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