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Adsorption behavior of Cr(VI) from aqueous solution onto magnetic graphene oxide functionalized with 1,2-diaminocyclohexanetetraacetic acid

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WOS被引频次:32
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成果类型:
期刊论文
作者:
Guo, Fang-ying;Liu, Yun-guo*;Wang, Hui;Zeng, Guang-ming;Hu, Xin-jiang;Zheng, Bo-hong;Li, Ting-ting;Tan, Xiao-fei;Wang, Shu-fan;Zhang, Ming-ming
通讯作者:
Liu, Yun-guo
作者机构:
[Liu, Yun-guo; Wang, Hui; Guo, Fang-ying; Wang, Shu-fan; Zhang, Ming-ming; Li, Ting-ting; Tan, Xiao-fei; Hu, Xin-jiang; Zeng, Guang-ming] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
[Liu, Yun-guo; Wang, Hui; Guo, Fang-ying; Wang, Shu-fan; Zhang, Ming-ming; Li, Ting-ting; Tan, Xiao-fei; Hu, Xin-jiang; Zeng, Guang-ming] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.
[Zheng, Bo-hong] Cent S Univ, Sch Architecture & Art, Changsha 410082, Hunan, Peoples R China.
通讯机构:
[Liu, Yun-guo] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
语种:
英文
期刊:
RSC Advances
ISSN:
2046-2069
年:
2015
卷:
5
期:
56
页码:
45384-45392
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:化学;WOS学科类别:Chemistry, Multidisciplinary
入藏号:
WOS:000354965300075;EI:20152200893049
基金类别:
National Natural Science Foundation of China [41271332, 51478470]; Hunan Provincial Innovation Foundation For Postgraduate [CX2012B138]
机构署名:
本校为其他机构
院系归属:
建筑与艺术学院
摘要:
A novel magnetic composite adsorbent was synthesized by grafting 1,2-diaminocyclohexanetetraacetic acid to magnetic graphene oxide (DCTA/E/MGO). The DCTA/E/MGO was employed for removing Cr(vi) from aqueous solution in this study. The composite was characterized by FESEM, TEM, BET, XRD, FT-IR and XPS. The adsorption behaviors of Cr(vi) by DCTA/E/MGO in aqueous solution were systematically investigated. Second order kinetic and Freundlich isotherm models validated the experimental data. The adsorption rate was influenced by both film diffusion and intraparticle diffusion. Thermodynamic parameters revealed that the adsorption reaction was an endothermic and spontaneous process. The novel adsorbent exhibited better Cr(vi) removal efficiency in solutions with low pH. The decontamination of Cr(vi) by DCTA/E/MGO was influenced by ionic strength. These results are important for estimating and optimizing the removal of metal ions by the DCTA/E/MGO composite. This journal is ©The Royal Society of Chemistry.
参考文献:
ALOthman ZA, 2013, ENVIRON SCI POLLUT R, V20, P3351, DOI 10.1007/s11356-012-1259-4
Balan C, 2013, CHEM IND CHEM ENG Q, V19, P615, DOI 10.2298/CICEQ120531095B
Basha S, 2007, PROCESS BIOCHEM, V42, P1521, DOI 10.1016/j.procbio.2007.08.004
Depan D, 2011, ACTA BIOMATER, V7, P3432, DOI 10.1016/j.actbio.2011.05.019
Fan LL, 2013, COLLOID SURFACE B, V103, P523, DOI 10.1016/j.colsurfb.2012.11.006

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