Catalytic ozonation of sodium benzoate by bimetallic catalysts
XU Zeng-yi1, YU Jin-peng1,2,3,4, ZHANG Jia1,2, LI Sen1, WANG Shi-yong1, YOU Ya-fang1, WANG Peng-fei1,2,3,4
1. Shanghai Research Institute of Chemical Industry Co., Ltd., Shanghai 200062, China; 2. Shanghai Luqiang New Materials Co., Ltd., Shanghai 201608, China; 3. State Key Laboratory of Polyolefin Catalytic Technology and Performance Materials, Shanghai 200062, China; 4. Shanghai Key Laboratory of Catalysis Technology for Polyolefins, Shanghai 200062, China
Abstract: The supported bimetallic catalysts are prepared through an equal volume impregnation method by using ZSM-5 as carrier, and characterized by means of SEM, XRF, XRD, BET and FT-IR.The catalytic activity of the catalysts for ozonation of sodium benzoate in wastewater is evaluated.The results show that Fe-Co/ZSM-5 catalyst prepared with Fe and Co as active components has better catalytic performance, with uniform distribution of surface particle components, large specific surface area and good pore structure.The degradation effect of wastewater reaches the best if the catalyst is used to treat with 300 mL of sodium benzoate-containing wastewater with a concentration of 100 mg·L-1 under the conditions that reaction temperature is at 50℃, pH of the solution is between 6 and 7, ozone concentration is 4.0 mg·L-1, ozone flux is 2.0 L·min-1, and the catalyst dosage is 1.0 g·L-1.The removal rate of sodium benzoate can reach 93.8% and the degradation rate of COD in wastewater can reach 91.3% when the reaction has performed for 80 minutes.
徐增益, 余金鹏, 张佳, 李森, 王士勇, 尤雅芳, 王鹏飞. 双金属催化剂催化臭氧化苯甲酸钠的研究[J]. 现代化工, 2021, 41(10): 162-167.
XU Zeng-yi, YU Jin-peng, ZHANG Jia, LI Sen, WANG Shi-yong, YOU Ya-fang, WANG Peng-fei. Catalytic ozonation of sodium benzoate by bimetallic catalysts. Modern Chemical Industry, 2021, 41(10): 162-167.
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