Study on the Catalytic Oxidation of Toluene Using CeO@S-AZMB Prepared from Spent Zn-Mn Batteries.

Molecules

Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China.

Published: January 2024

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The recycling and utilization of waste alkaline zinc manganese batteries (S-AZMB) has always been a focus of attention in the fields of environment and energy. However, current research mostly focuses on the recycling of purified materials, while neglecting the direct reuse of waste batteries. Here, we propose a new concept of preparing thermal catalysts by combining unpurified S-AZMB with CeO by means of ball milling. A series of characterizations and experiments have confirmed that the combination with S-AZMB not only enhances the thermal catalytic activity of CeO but also significantly enhances the concentration of surface oxygen vacancies. In the toluene removal experiment, the temperature (T90) at 90% toluene conversions of CeO@S-AZMB was 180 °C, lower than the 220 °C for CeO. More noteworthy is that this S-AZMB-based thermal catalyst can maintain a good structure and thermal catalytic stability in cyclic catalysis.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10856000PMC
http://dx.doi.org/10.3390/molecules29030616DOI Listing

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