title: Synergistic effect of manganese dioxide and diatomite for fast decolorization and high removal capacity of methyl orange.
abstract: MnO2nanostructures with two different morphologies (nanowires and nanosheets) were uniformly deposited on diatomite via a one-pot hydrothermal method. The fast decolorization and high removal capacity for anionic dye-MO over synthesized composites had been clarified. The results revealed that the equilibrium time was shortened to as low as 10-30min, and the maximum adsorption capacities were 325mgg-1and 420mgg-1for nanowires and nanosheets composites, respectively, under the condition of initial pH 3 and ambient temperature. Indeed, the proposed decolorization mechanism was considered to be simultaneous multi-processes during the dye removal, including physical, physicochemical and chemical process. In principle, well-controlled cost-effective composites have promising ability to remove anionic dye pollutants for environmental remediation.
authors: College of Resources and Environmental Science, State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China.
authors: Hui Hua
authors: HH
authors: Peng
authors: College of Resources and Environmental Science, State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China. Electronic address: chenjie_cqu@163.com.
authors: Jie
authors: J
authors: Chen
authors: College of Resources and Environmental Science, State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China.
authors: De Yi
authors: Y
authors: Jiang
authors: College of Optoelectronic Engineering, Key Laboratory of Fundamental Science of Micro/Nano-Devices and System Technology, Chongqing University, Chongqing 400044, PR China.
authors: Min
authors: M
authors: Li
authors: College of Materials Science and Engineering, Key Laboratory of Fundamental Science of Micro/Nano-Devices and System Technology, Chongqing University, Chongqing 400044, PR China.
authors: Li
authors: L
authors: Feng
authors: School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
authors: Dusan
authors: D
authors: Losic
authors: Chongqing Key Laboratory of Catalysis and Functional Organic Molecules, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, PR China.
authors: Fan
authors: F
authors: Dong
authors: College of Resources and Environmental Science, State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China; College of Materials Science and Engineering, Key Laboratory of Fundamental Science of Micro/Nano-Devices and System Technology, Chongqing University, Chongqing 400044, PR China. Electronic address: zhangyuxin@cqu.edu.cn.
authors: Yu Xin
authors: YX
authors: Zhang
keywords: Decolorization; Diatomite; Manganese dioxide; Methyl orange; Wastewater treatment