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Adsorption of linear alkylbenzene sulfonates on carboxyl modified multi-walled carbon nanotubes
Guan, Zhuo1,2,3; Tang, Xiang-Yu1; Nishimura, Taku3; Huang, Yu-Ming2; Reid, Brian J.4
Corresponding AuthorXiang-Yu Tang
2017
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
EISSN1873-3336
Volume322Pages:205-214
SubtypeArticle
AbstractUnderstanding of the adsorption behavior of organic pollutants on carbon nanotubes (CNTs) and its governing factors are crucial for the assessment of transport and fate of organic pollutants. This study explored adsorption characteristics of linear alkylbenzene sulfonates (LAS) on carboxyl modified multi walled carbon nanotubes (CMMWCNTs) and the effect of solution chemistry and temperature on LAS sorption. Results indicted LAS adsorption isotherms to display five distinct regions of sorption at 25 degrees C and 60 degrees C. Regardless of temperature, the adsorption isotherm of LAS on the CMMWCNTs was well described using the Freundlich equation. This result indicated heterogeneous distribution of adsorption sites on the CMMWCNT surface. At low initial LAS concentrations, below the critical micelle concentration, (2, 10 and 50 mg L-1) LAS adsorption on the CMMWCNTs followed pseudo second-order kinetics. The highest LAS adsorption was observed at ionic strengths of 1.0 mol L-1 for NaCl; and 0.2 mol L-1 for both CaCl2 and MgCl2. However, LAS sorption was greatest in the presence of sodium-divalent anion salts and at higher temperatures. These findings are of relevance to the fate and environmental risk of LAS in the presence of CMMWCNTs in high salinity wastewaters or effluents and brackish receiving surface water bodies (e.g., at estuaries). (C) 2016 Elsevier B.V. All rights reserved.
KeywordLinear Alkylbenzene Sulfonate Carbon Nanotube Adsorption Solution Composition
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1016/j.jhazmat.2016.02.067
WOS Subject ExtendedEngineering ; Environmental Sciences & Ecology
Indexed BySCI
WOS KeywordAQUEOUS-SOLUTIONS ; SURFACTANT ADSORPTION ; NONIONIC SURFACTANTS ; AROMATIC-COMPOUNDS ; POROUS-MEDIA ; WASTE-WATER ; BEHAVIOR ; ENVIRONMENT ; DISPERSION ; KINETICS
Language英语
Quartile1区
TOP
WOS SubjectEngineering, Environmental ; Engineering, Civil ; Environmental Sciences
WOS IDWOS:000388061200018
Funding OrganizationJapan Society for the Promotion of Science (RONPAKU Program)(CAS-11313) ; National Natural Science Foundation of China(21307152 ; Hundred Talents Program of Sichuan Province (China) ; 41471268)
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17914
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, 9,Block 4,Renminnanlu Rd, Chengdu 610041, Peoples R China
2.Southwest Univ, Coll Chem & Chem Engn, Chongqing 400715, Peoples R China
3.Univ Tokyo, Grad Sch Agr & Life Sci, Dept Biol & Environm Engn, Lab Soil Phys & Soil Hydrol, Tokyo 1138657, Japan
4.Univ East Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Guan, Zhuo,Tang, Xiang-Yu,Nishimura, Taku,et al. Adsorption of linear alkylbenzene sulfonates on carboxyl modified multi-walled carbon nanotubes[J]. JOURNAL OF HAZARDOUS MATERIALS,2017,322:205-214.
APA Guan, Zhuo,Tang, Xiang-Yu,Nishimura, Taku,Huang, Yu-Ming,&Reid, Brian J..(2017).Adsorption of linear alkylbenzene sulfonates on carboxyl modified multi-walled carbon nanotubes.JOURNAL OF HAZARDOUS MATERIALS,322,205-214.
MLA Guan, Zhuo,et al."Adsorption of linear alkylbenzene sulfonates on carboxyl modified multi-walled carbon nanotubes".JOURNAL OF HAZARDOUS MATERIALS 322(2017):205-214.
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