ICCAS OpenIR
Wettability alteration by CTAB adsorption at surfaces Of SiO2 film or silica gel powder and mimic oil recovery
Bi, ZC; Liao, WS; Qi, LQ
2004-01-15
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume221Issue:1-4Pages:25-31
AbstractThe adsorption of cetyl trimethylammonium bromide (CTAB) at a smooth surface of SiO2 film was determined by Ellipsometry. The result is in agreement with a two step model of the adsorption. Its monolayer and bilayer adsorption occurred at different concentrations of the CTAB aqueous solutions. The adsorption is consistent with the wettability change of the film surface. The wettability of the CTAB solutions on a silica gel powder was determined by a modified Washburn equation. The interfacial tension (gamma) between dodecane and the dilute CTAB aqueous solution was obtained using the pendant method. The relationship between the wettability of the powder surface, the critical micelle concentration (CMC) of CTAB and the mimic oil recovery of the residual oil on the powder surface has been explored. It has been found that good residual oil recovery can be achieved by the surface wettability changes at normal interfacial tensions (10(0)-10(2) mN m(-1)) and no formation of emulsion was observed. (C) 2003 Elsevier B.V. All rights reserved.
KeywordSio2 Film Silica Gel Powder Adsorption Wettability Interfacial Tension Thin Oil Film
DOI10.1016/S0169-4332(03)00948-6
Indexed BySCI
Language英语
WOS IDWOS:000187721700006
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:40[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81738
Collection中国科学院化学研究所
Corresponding AuthorBi, ZC
AffiliationChinese Acad Sci, Inst Chem, Key Lab Colloid & Interface Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Bi, ZC,Liao, WS,Qi, LQ. Wettability alteration by CTAB adsorption at surfaces Of SiO2 film or silica gel powder and mimic oil recovery[J]. APPLIED SURFACE SCIENCE,2004,221(1-4):25-31.
APA Bi, ZC,Liao, WS,&Qi, LQ.(2004).Wettability alteration by CTAB adsorption at surfaces Of SiO2 film or silica gel powder and mimic oil recovery.APPLIED SURFACE SCIENCE,221(1-4),25-31.
MLA Bi, ZC,et al."Wettability alteration by CTAB adsorption at surfaces Of SiO2 film or silica gel powder and mimic oil recovery".APPLIED SURFACE SCIENCE 221.1-4(2004):25-31.
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