Modification palygorskite with surfactants by the aid of high-shear emulsifying process for chromium(VI) absorption
文献类型：期刊论文
| 作者 | 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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| 刊名 | Current Environmental Engineering
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| 出版日期 | 2015 |
| 卷号 | 2期号:2页码:113-121 |
| 关键词 | Adsorption chromium (VI) high-shear emulsifying OTAB palygorskite surfactant |
| ISSN号 | 2212-7178 |
| 通讯作者 | 王爱勤 |
| 英文摘要 | 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. |
| 学科主题 | 环境材料与生态化学 |
| 资助信息 | the National Natural Science Foundation of China (No: 51404143;51403221);“863” Project of the Ministry of Science and Technology, P. R. China (No. 2013AA032003) |
| 语种 | 英语 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://210.77.64.217/handle/362003/19208]  |
| 专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
| 通讯作者 | Wang AQ(王爱勤) |
| 作者单位 | 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：兰州化学物理研究所
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