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Optimal Decolorization Efficiency of Reactive Red 3 by Fe-RH-MCM-41 Catalytic Wet Oxidation Coupled with Box-Behnken Design

机译:Fe-RH-MCM-41催化湿氧化与Box-Behnken设计相结合对活性红3的最佳脱色效率

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摘要

The reactive red 3 was degraded by catalytic wet oxidation process over Fe-RH-MCM-41 prepared by Direct Hydrothermal Technique (DHT) at Si/Fe molar ratio of 10 using silica from rice husk. The extended reaction conditions were studied as a function of reaction temperatures, initial H_2O_2 concentrations and initial pH of solutions designed by Box-Behnken design (BBD) based on Response Surface Methodology (RSM) to achieve the optimal condition and interaction of independent variables. The characterizations of catalyst were studied by XRD, BET surface area and TEM to explain the morphology of surface and to confirm the hexagonal structure. The results showed the 2theta peak can be indexed to hexagonal lattice that also confirmed by TEM result and surface area about 650 m~2/g. All of independent variables showed significant on the degradation of reactive red 3 except for initial H_2O_2 concentration.
机译:使用稻壳中的二氧化硅,在直接水热技术(DHT)制备的Fe-RH-MCM-41上,通过Si / Fe摩尔比为10的Fe-RH-MCM-41,通过催化湿氧化工艺将反应性红3降解。扩展反应条件作为反应温度,初始H_2O_2浓度和溶液初始pH的函数进行了研究,该溶液是通过基于响应表面方法(RSM)的Box-Behnken设计(BBD)设计的,以获得最佳条件和独立变量之间的相互作用。通过XRD,BET比表面积和TEM对催化剂的表征进行了研究,以解释其表面形貌并确认其六方结构。结果表明,2θ峰可归为六方晶格,这也由TEM结果和约650 m〜2 / g的表面积证实。除初始H_2O_2浓度外,所有自变量均显示出对反应性红3降解的显着性。

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  • 会议地点 Bangkok(TH)
  • 作者单位

    Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand ,Research Center for Environmental and Hazardous Substance Management (EHSM), Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand;

    Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand;

    Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand;

    Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand ,Research Center for Environmental and Hazardous Substance Management (EHSM), Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand;

    Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand;

    Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fenton-like; Heterogeneous catalyst; Dye wastewater; Rice husk silica;

    机译:类芬顿;非均相催化剂染料废水;稻壳二氧化硅;

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