| Modification palygorskite with surfactants by the aid of high-shear emulsifying process for chromium(VI) absorption | |
| Department | 环境材料与生态化学研究发展中心 |
Xu JX (徐继香)1,2; Wang WB (王文波)2 ; Kang YR (康玉茹)2; Wang AQ (王爱勤)2; Wang AQ(王爱勤)
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| 2015 | |
| Source Publication | Current Environmental Engineering
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| ISSN | 2212-7178 |
| Volume | 2Issue:2Pages:113-121 |
| Abstract | Palygorskite (PAL) was modified with octadecyltrimethyl ammonium bromide (OTAB) and dimethyldioctadecyl ammonium bromide (DOTAB) with the aid of high-shear emulsifying process. Thermo gravimetric (TG) and Infrared spectroscopy (IR) analyses confirm that surfactants were attached onto PAL. The surface charges of PAL first decreased and then increased with increasing the dosage of OTAB and DOTAB. The adsorption properties of the surfactant-modified PAL for Chromium (Cr, VI) were investigated at 30 °C. Results show that the maximum adsorption capacity at pH 3 reaches 25.4 mg・g–1 for OTAB-modified PAL, which is much higher than 4.1 mg・g–1 of unmodified PAL. The mechanism for the adsorption of Cr(VI) onto surfactant-modified PAL was discussed. It was revealed that the adsorption process follows pseudo-second-order kinetic models. The disaggregation of PAL crystal bundles and in situ organification were achieved by one-step process, which present a new approach to design highly efficient adsorbent for removal of toxic Cr(VI) anions from aqueous solution. |
| Keyword | Adsorption Chromium (Vi) High-shear Emulsifying Otab Palygorskite Surfactant |
| Subject Area | 环境材料与生态化学 |
| Funding Organization | the National Natural Science Foundation of China (No: 51404143;51403221);“863” Project of the Ministry of Science and Technology, P. R. China (No. 2013AA032003) |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| compositor | 第二作者单位 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/19208 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | Wang AQ(王爱勤) |
| Affiliation | 1.Key Laboratory of Sensor Analysis of Tumor Marker Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China 2.R&D Center of Xuyi Palygorskite Applied Technology, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Xuyi 211700, P.R. China |
| Recommended Citation GB/T 7714 | Xu JX ,Wang WB ,Kang YR ,et al. Modification palygorskite with surfactants by the aid of high-shear emulsifying process for chromium(VI) absorption[J]. Current Environmental Engineering,2015,2(2):113-121. |
| APA | Xu JX ,Wang WB ,Kang YR ,Wang AQ ,&王爱勤.(2015).Modification palygorskite with surfactants by the aid of high-shear emulsifying process for chromium(VI) absorption.Current Environmental Engineering,2(2),113-121. |
| MLA | Xu JX ,et al."Modification palygorskite with surfactants by the aid of high-shear emulsifying process for chromium(VI) absorption".Current Environmental Engineering 2.2(2015):113-121. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Modification Palygor（2144KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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