期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 192, 期 -, 页码 150-155出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2017.01.064
关键词
NiFe(C2O4)(x); Catalyst; Heterogeneous Fenton; Methyl orange
资金
- National Basic Research Program of China (973 Program) [2013CB430005]
- National Natural Science Foundation of China [21577173]
This paper studies a heterogeneous Fenton catalyst NiFe(C2O4)(x), which showed better catalytic activity than Ni(C2O4)(x) and better re-usability than Fe(C2O4)(x). The methyl orange removal efficiency was 98% in heterogeneous Fenton system using NiFe(C2O4)(x). The prepared NiFe(C2O4)(x) had a laminated shape and the size was in the range of 2-4 gm, and Ni was doped into catalyst's structure successfully. The NiFe(C2O4)(x) had a synergistic effect of catalyst of 24.7 for methyl orange removal, and the dope of Ni significantly reduced the leaching of Fe by 77%. The reaction factors and kinetics were investigated. Under the optimal conditions, 0.4 g/L, of catalyst dose and 10 mmol/L of hydrogen peroxide concentration, 98% of methyl orange was removed within 20 min. Analysis showed that hydroxyl radicals and superoxide radicals participated in the reaction. With NiFe(C2O4)(x) catalyst, the suitable pH range for heterogeneous Fenton system was wide from 3 to 10. The catalyst showed good efficiency after five times re-use. NiFe(C2O4)(x) provided great potential in treatment of refractory wastewater with excellent property. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据