DataVXACS Applied Materials & InterfacesPaper
journal article·2023-05-10

Constructing Highly Active Metal Oxides for Toluene Degradation by Fenton Iron Mud Modulation

Yanan Chong, Yifei Li, Jiajin Lin, Tingyu Chen, Shuaiqi Zhao, Peng Wu, Anqi Li, Chunhua Feng, Yongcai Qiu, Daiqi Ye

ACS Applied Materials & Interfaces· Volume 15· Issue 18
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Source abstract

Abstract

Fenton iron mud (IM) is a hazardous solid waste produced by Fenton oxidation technology after treating industrial wastewater. Thus, it is necessary and challenging to develop a recycling technology to back-convert dangerous materials into useful products. Herein, we develop a sustainable approach to prepare highly active metal oxides via a solid-state grinding method. IM, as an amorphous material, can disperse and interact well with these supported metal oxides, boosting toluene degradation significantly. Among these IM-based catalysts, the catalyst 8% MnO x /IM-0.2VC exhibits the best performance ( T 100 = 290 °C), originating from the oxide–support interaction and optimal balance between low-temperature reducibility and oxygen vacancy concentration. In addition, in situ diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) results expound that ring breakage is prone to occur on MnO x, and oxygen vacancies are beneficial to adsorb oxygen and activate oxygen species to boost toluene oxidation following the Mars–van Krevelen mechanism. This work advances a complete industrial hazardous waste recycling route to develop extremely active catalysts.
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Research context

Catalysis & surfaces

OpenAlex topics: Catalytic Processes in Materials Science · Catalysis and Oxidation Reactions · Catalysis and Hydrodesulfurization Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou 510000, Guangdong, China

The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, China

Funding

Shenzhen Peacock Plan · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Natural Science Foundation of Guangdong Province · the Innovation and Entrepreneurship Talent Program of Shaoguan City, the China Postdoctoral Science Foundation · Guangdong Innovative and Entrepreneurial Research Team Program · Science and Technology Program of Guangzhou, China · Guangdong Pearl River Talent Program · Foshan Innovative and Entrepreneurial Research Team Program · the Science and Technology Key Project of Guangdong Province, China · National Key Research and Development Program of China · Nanshan Pilot Plan

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