Adsorption of tungstate using cationic gemini surfactant-modified montmorillonite: Influence of alkyl chain length

被引:10
作者
Xiao, Ting [1 ,2 ]
Luo, Wuhui [1 ,2 ,3 ]
Wei, Jiali [1 ,2 ]
Yuan, Xiujuan [1 ,2 ]
Huang, Qidong [1 ,2 ]
Zou, Laixi [4 ]
Zhang, Meng [3 ]
Antwi, Philip [2 ]
Zhang, Daochao [1 ,2 ,5 ]
Ren, Sili [1 ,2 ]
机构
[1] Jiangxi Univ Sci & Technol, Jiangxi Key Lab Min & Met Environm Pollut Control, Ganzhou 341000, Peoples R China
[2] Jiangxi Univ Sci & Technol, Sch Resources & Environm Engn, Ganzhou 341000, Peoples R China
[3] Jiangxi Acad Environm Sci, Nanchang 330039, Jiangxi, Peoples R China
[4] Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Ganzhou 341000, Peoples R China
[5] Ganzhou Technol Innovat Ctr Mine Ecol Remediat, Ganzhou 341000, Jiangxi, Peoples R China
基金
中国博士后科学基金;
关键词
Montmorillonite; Cationic gemini surfactant; Alkyl chain length; Tungstate; Adsorption; AQUEOUS-SOLUTION; REMOVAL; PERCHLORATE; SPECIATION; MICROWAVE; BEHAVIOR;
D O I
10.1016/j.colsurfa.2021.127484
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Influence of alkyl chain length on the adsorption characteristics of organic pollutants by conventional cationic surfactant-modified montmorillonite (Mt) has been well explored. However, applying different cationic gemini surfactants to modify Mt for the adsorption of pollutant that possesses different species in aqueous solution to insightfully understand the structure-property relationship is rarely reported. In this study, three gemini surfactants with different alkyl chain lengths (number of carbon atoms, m = 12, 14, and 18) are selected to regulate the distribution and configuration in the composites. Tungstate, an emerging pollutant, is chosen as a probe, and its different species are modulated by changing the adsorption temperature and pH. The molar contents of the three surfactants are negligibly affected by the alkyl chain length, while the distributions of surfactants in the interlayer space and on the external surface are different. Lengthening the alkyl chain increases the packing density, lowering the accessibility of adsorption sites and decreasing the uptake of tungstates. At lower temperatures and pH values, polytungstates are the predominant species in the solution and are more favorably immobilized by the modified Mt. Ion exchange with Br- ions and desorption-adsorption are jointly responsible for the adsorption of tungstates, and both of these processes are configuration-dependent. The modified Mt by the gemini surfactants with longer alkyl chains demonstrates a lower ion exchange percentage and a more remarkable uptake of tungstates on the external surface. The adsorption of tungstates is accompanied by the rearrangement of gemini surfactants. Thus, elucidating the self-accommodation mechanism of cationic gemini surfactants during tungstates adsorption on modified Mt will provide a significant reference for the design of cationic surfactant-modified clay minerals used for pollutant immobilization.
引用
收藏
页数:10
相关论文
共 46 条
  • [1] Enhancement of mechanical characterization of aluminum alloy with tungsten carbide metal matrix composite by particulate reinforcements
    Anand, P.
    Rajesh, D.
    Lenin, N.
    Balaji, V.
    Raja, V. K. Bupesh
    Palanikumar, K.
    [J]. MATERIALS TODAY-PROCEEDINGS, 2021, 46 : 3690 - 3692
  • [2] Microwave versus conventional preparation of organoclays from natural and synthetic clays
    Baldassari, S
    Komarneni, S
    Mariani, E
    Villa, C
    [J]. APPLIED CLAY SCIENCE, 2006, 31 (1-2) : 134 - 141
  • [3] High strain-rate behaviour of a Tungsten alloy
    Cadoni, Ezio
    Dotta, Matteo
    Forni, Daniele
    [J]. 1ST VIRTUAL EUROPEAN CONFERENCE ON FRACTURE - VECF1, 2020, 28 : 964 - 970
  • [4] Study of accumulation behaviour of tungsten based composite using electron probe micro analyser for the application in bone tissue engineering
    Chen, Gang
    Fu, Zheng
    Guo, Hongli
    Pradhan, Sunil Kumar
    Hao, Pan
    [J]. SAUDI JOURNAL OF BIOLOGICAL SCIENCES, 2020, 27 (11) : 2936 - 2941
  • [5] Preparation of Montmorillonite Nanosheets through Freezing/Thawing and Ultrasonic Exfoliation
    Chen, Tianxing
    Yuan, Yuan
    Zhao, Yunliang
    Rao, Feng
    Song, Shaoxian
    [J]. LANGMUIR, 2019, 35 (06) : 2368 - 2374
  • [6] Infrared Study of (Poly)tungstate Ions in Solution and Sorbed into Layered Double Hydroxides: Vibrational Calculations and In Situ Analysis
    Davantes, A.
    Costa, D.
    Lefevre, G.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2015, 119 (22) : 12356 - 12364
  • [7] Solubility, sorption, and soil respiration effects of tungsten and tungsten alloys
    Dermatas, D
    Braida, W
    Christodoulatos, C
    Strigul, N
    Panikov, N
    Los, M
    Larson, S
    [J]. ENVIRONMENTAL FORENSICS, 2004, 5 (01) : 5 - 13
  • [8] Adsorption kinetics and thermodynamics of rare earth on Montmorillonite modified by sulfuric acid
    Fang, Zhou
    Suhua, Huang
    Xu, Liu
    Jian, Feng
    Qi, Liu
    Zhiwei, Wang
    Chuanchang, Li
    Yuanlai, Xu
    [J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2021, 627
  • [9] Flora S., 2020, MED DRUG DISCOVERY, V6, DOI DOI 10.1016/J.MEDIDD.2020.100045
  • [10] Adsorption of tungstate (WO4) on birnessite, ferrihydrite, gibbsite, goethite and montmorillonite as affected by pH and competitive phosphate (PO4) and molybdate (MoO4) oxyanions
    Iwai, Tomoe
    Hashimoto, Yohey
    [J]. APPLIED CLAY SCIENCE, 2017, 143 : 372 - 377