title: Enhanced electrochemical oxidation of Acid Red 3R wastewater with iron phosphomolybdate supported catalyst.
abstract: Electrochemical oxidation of Acid Red 3R (AR3R) was investigated with the new catalyst of iron phosphomolybdate (FePMo12) supported on modified molecular sieves type 4 Å (4A) as packing materials in the reactor. The results of the Fourier transform infrared spectroscopy and X-ray diffraction indicated that the heteropolyanion had a Keggin structure. The optimal conditions for decolorization of simulated AR3R wastewater were as follows: current density 35 mA/cm², initial pH 4.0, airflow 0.08 m³/hour and inter-electrode distance 3.0 cm. With the addition of NaCl to the system, the decolorization efficiency increased. But Na₂SO₄had a negative effect on the decolorization efficiency, which was attributed to the negative salt effect. The degradation mechanisms of AR3R were also discussed in detail.
authors: Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shi Jiazhuang 050018, China E-mail: yuelintj@126.com.
authors: Li
authors: L
authors: Wang
authors: Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shi Jiazhuang 050018, China E-mail: yuelintj@126.com.
authors: Lin
authors: L
authors: Yue
authors: Hebei Research Academy of Environmental Sciences, Shi Jiazhuang 050000, China.
authors: Feng
authors: F
authors: Shi
authors: Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shi Jiazhuang 050018, China E-mail: yuelintj@126.com.
authors: Jianbo
authors: J
authors: Guo
authors: Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shi Jiazhuang 050018, China E-mail: yuelintj@126.com.
authors: Jingliang
authors: J
authors: Yang
authors: Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shi Jiazhuang 050018, China E-mail: yuelintj@126.com.
authors: Jing
authors: J
authors: Lian
authors: Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shi Jiazhuang 050018, China E-mail: yuelintj@126.com.
authors: Xiao
authors: X
authors: Luo
authors: Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shi Jiazhuang 050018, China E-mail: yuelintj@126.com.
authors: Yankai
authors: Y
authors: Guo
mesh_terms: D055664:Electrochemical Techniques; D004923:Erythrosine / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D007501:Iron / Q000737:chemistry; D008982:Molybdenum / Q000737:chemistry*; D010084:Oxidation-Reduction; D010756:Phosphoric Acids / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D062065:Wastewater / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D004923:Erythrosine; D005456:Fluorescent Dyes; D007501:Iron; D008982:Molybdenum; D010756:Phosphoric Acids; D062065:Wastewater; D014874:Water Pollutants, Chemical; C003125:phosphomolybdic acid