Kapok fiber oriented-polyaniline nanofibers for efficient Cr(VI) removal | |
Zheng YA(郑易安)1,2![]() ![]() ![]() ![]() | |
刊名 | Chemical Engineering Journal
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2012 | |
卷号 | 191页码:154-161 |
关键词 | Hexavalent chromium Removal Kapok fiber Polyaniline Oriented |
ISSN号 | 1385-8947 |
通讯作者 | 王爱勤 |
英文摘要 | Kapok fiber (KF) was combined with polyaniline (PAN) to obtain an adsorbent via in situ rapid polymerization of aniline (AN). The results indicate that KF can guide the growth orientation of PAN by which KF oriented-PAN nanofibers were developed and used as the adsorbent to remove hexavalent chromium. The effects of operating parameters including pH, contact time, Cr(VI) concentration and coexisting heavy metals were studied. The pseudo-second-order equation and three adsorption isotherms including Langmuir, Freundlich and Redlich-Peterson equations were applied to determine the adsorption rate and capacity. The results show that the as-prepared KF/PAN adsorbent has a comparable adsorption capacity with PAN at lower initial Cr(VI) concentration. Simultaneously, KF/PAN exhibits a faster adsorption rate as a result of its intrinsic large lumen. Coexisting heavy metals have no obvious effects on the adsorption capacity, suggesting that KF/PAN is a highly efficient and economically viable adsorbent for selective Cr(VI) removal. (C) 2012 Elsevier B.V. All rights reserved. |
学科主题 | 环境材料与生态化学 |
收录类别 | SCI |
资助信息 | the National Natural Science Foundation of China (no. 21107116;no. 20877077) |
语种 | 英语 |
WOS记录号 | WOS:000304793300018 |
公开日期 | 2013-03-24 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/2528] ![]() |
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 |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng YA,Wang WB,Huang DJ,et al. Kapok fiber oriented-polyaniline nanofibers for efficient Cr(VI) removal[J]. Chemical Engineering Journal,2012,191:154-161. |
APA | Zheng YA,Wang WB,Huang DJ,&Wang AQ.(2012).Kapok fiber oriented-polyaniline nanofibers for efficient Cr(VI) removal.Chemical Engineering Journal,191,154-161. |
MLA | Zheng YA,et al."Kapok fiber oriented-polyaniline nanofibers for efficient Cr(VI) removal".Chemical Engineering Journal 191(2012):154-161. |
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