Manganese Dioxide nanosheet suspension A novel absorbent for Cadmium(II) contamination in waterbody》.pdfVIP

Journal of Colloid and Interface Science 456 (2015) 108–115 Contents lists available at ScienceDirect Journal of Colloid and Interface Science /locate/jcis Manganese Dioxide nanosheet suspension: A novel absorbent for Cadmium(II) contamination in waterbody Liang Peng a, Qingru Zeng a, Boqing Tie a, Ming Lei a, Jiao Yang a, Si Luo a, Zhengguo Song b,c,⇑ a Department of Environmental Science Engineering, Hunan Agricultural University, Changsha 410128, PR China b Key Laboratory of Original Agro-Environment Quality of Ministry of Agriculture and Tianjin Key Laboratory of Agro-Environment and Safe-Product, Tianjin 300191, PR China c Institute of Agro-Environmental Protection, Ministry of Agriculture, Tianjin 300191, PR China g r a p h i c a l a b s t r a c t a r t i c l e i n f o a b s t r a c t Article history: A MnO nanosheet (MnO -NS) suspension was prepared from tetramethylammonium hydroxide 2 2 Received 18 November 2014 (TMAOH), H O , and MnCl 4H O, and its efficiency for Cd(II) removal from aqueous solutions was 2 2 2 2 Accepted 11 June 2015 investigated. The maximum adsorption capacity of the MnO2-NS for Cd(II) was evaluated to be about Available online 17 June 2015 348 mg/g, which is thus far the highest value reported for MnO2 at pH 6.0. This high adsorption capacity