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Manganese Dioxide nanosheet suspension: A novel absorbent for Cadmium(II) contamination in waterbody

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成果类型:
期刊论文
作者:
Peng, Liang;Zeng, Qingru;Tie, Boqing;Lei, Ming;Yang, Jiao;...
通讯作者:
Song, Zhengguo
作者机构:
[Luo, Si; Peng, Liang; Yang, Jiao; Tie, Boqing; Zeng, Qingru; Lei, Ming] Hunan Agr Univ, Dept Environm Sci & Engn, Changsha 410128, Hunan, Peoples R China.
[Song, Zhengguo] Minist Agr, Key Lab Original Agroenvironm Qual, Tianjin 300191, Peoples R China.
[Song, Zhengguo] Tianjin Key Lab Agroenvironm & Safe Prod, Tianjin 300191, Peoples R China.
[Song, Zhengguo] Minist Agr, Inst Agroenvironm Protect, Tianjin 300191, Peoples R China.
通讯机构:
[Song, Zhengguo] M
Minist Agr, Inst Agroenvironm Protect, Tianjin 300191, Peoples R China.
语种:
英文
关键词:
Adsorption;Cadmium;Manganese oxide;Nanosheet
期刊:
Journal of Colloid and Interface Science
ISSN:
0021-9797
年:
2015
卷:
456
页码:
108-115
基金类别:
Key Laboratory of Original Agro-environment Quality of the Ministry of Agriculture; Tianjin Key Laboratory of Agro-environment and Safe-product of the Ministry of Agriculture; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41401260, 41273136]; Natural Science Foundation of Hunan ProvinceNatural Science Foundation of Hunan Province [13JJ04068]
机构署名:
本校为第一机构
院系归属:
资源环境学院
摘要:
A MnO2 nanosheet (MnO2-NS) suspension was prepared from tetramethylammonium hydroxide (TMA{dot operator}OH), H2O2, and MnCl2{dot operator}4H2O, and its efficiency for Cd(II) removal from aqueous solutions was investigated. The maximum adsorption capacity of the MnO2-NS for Cd(II) was evaluated to be about 348mg/g, which is thus far the highest value reported for MnO2 at pH 6.0. This high adsorption capacity is attributed to efficient ion exchange. X-ray photoelectron spectroscopy (XPS) revealed that Cd(II) was adsorbed on MnO2 as CdO and Cd(OH)...

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