Organics Wastewater Degradation by a Mesoporous Chromium-Functionalized γ-Al2O3 with H2O2 Assistance

  • Jianjun Zhao
  • Muxin Liu
  • Mengwei Liang
  • Bosheng Ding
  • Kun Ding
  • Yupeng Pan


In this study, a mesoporous chromium-functionalized γ-Al2O3 (Cr/γ-Al2O3) catalyst was prepared by an impregnation method, and the catalytic activity was evaluated by the degradation of organics wastewater. The prepared catalyst was characterized by X-ray photoelectron spectroscopy, X-ray diffraction, nitrogen adsorption-desorption experiments, and scanning electron microscopy. The characterization results confirmed that the pores in the Cr/γ-Al2O3 catalyst distributed broadly in the mesoporous region, and the active chromium species were highly dispersed on the catalyst surface. The catalytic activity tests showed that the Cr/γ-Al2O3 catalyst exhibited a superior performance for the degradation of organics wastewater with H2O2 assistance. And the methylene blue (MB) disappeared within 20 min and the COD removal reached 76.5% within 40 min for the MB-simulated wastewater; for the phenol-simulated wastewater, the phenol removal was above 95% and the corresponding COD removal reached 71% within 40 min. Such an excellent catalytic performance demonstrates that the Cr/γ-Al2O3 catalyst has a potential application in the degradation of complex organics wastewater simultaneously.


Cr/γ-Al2O3 catalyst Catalytic degradation Organics wastewater COD removal 


Funding information

The authors acknowledge the support of the Natural Science Research Key Project of the Anhui Provincial Department of Education (Grant KJ2015A231).


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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Materials and Chemical EngineeringBengbu UniversityBengbuChina

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