Delta manganese dioxide nanosheets decorated magnesium wire for the degradation of methyl orange

被引:29
作者
Zhang, Yan [1 ]
Zheng, Tian Xu [1 ]
Hu, Yao Bo [1 ]
Guo, Xiao Luo [1 ]
Peng, Hui Hua [2 ]
Zhang, Yu Xin [1 ,2 ,3 ]
Feng, Li [1 ,4 ]
Zheng, Huai Li [5 ]
机构
[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Coll Resources & Environm Sci, State Key Lab Coal MineDisaster Dynam & Control, Chongqing 400044, Peoples R China
[3] Chongqing Univ, Natl Key Lab Fundamental Sci Micro Nanodevices &, Chongqing 400044, Peoples R China
[4] Chongqing Acad Environm Sci, 252 Qishan Rd, Chongqing 401147, Peoples R China
[5] Chongqing Univ, Coll Urban Construct & Environm Engn, Chongqing 400045, Peoples R China
基金
中国国家自然科学基金;
关键词
MnO2; Magnesium; Adsorption; Methyl orange; Degradation; EFFICIENT OXIDATIVE-DEGRADATION; LAYERED DOUBLE HYDROXIDES; PH-DEPENDENT DEGRADATION; CARBON NANOTUBES; AQUEOUS-SOLUTION; OXIDE; REMOVAL; ADSORPTION; SILICA; BLUE;
D O I
10.1016/j.jcis.2016.11.080
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
MnO2-decorated magnesium wire composite (MnO2-M) was fabricated via a simple hydrothermal reaction and accompanied by the calcination process (MnO2/Mn3O4-M). To clarify the optimized reaction condition of 6-MnO2 in the system, the effect of different pH, temperature and pollutant concentration of methyl orange (MO) for degradation process were investigated. Experimental results showed that MnO2-M achieves a high removal rate of 76% (2 h, at 25 degrees C) in the presence of H2O2 at pH 2.5, which is higher than that of MnO2/Mn3O4-M (54%). Moreover, reaction temperature and MO dye concentration have little effect on the degradation performance of MnO2-M. This implies the stability of the as prepared samples and good potential in the application of wastewater treatment. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码:226 / 232
页数:7
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