云师大在top期刊《Chemical Engineering Journal》发表最新研究成果发表题为《Molecularly imprinted catalytic membrane reactor for improved advanced oxidation degradation efficiency of low concentration pollutants》的最新研究成果。第一作者单位为云南师范大学，云南师范大学能源与环境科学科学学院李曦同

为第一作者，北京大学环境科学与工程学院赵华章和深圳大学化学与环境工程学院肖轲为通讯作者。https://doi.org/10.1016/j.cej.2023.144203

Xitong Li a, Hao Sun b, Liangjie Wang b, Ke Xiao b, Huazhang Zhao c d

• aSchool of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China

• bWater Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China

• cThe Key Laboratory of Water and Sediment Sciences (Ministry of Education), College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China

• dShanxi Laboratory for Yellow River, Shanxi University, Taiyuan 030006, China

Received 27 March 2023, Revised 31 May 2023, Accepted 16 June 2023, Available online 17 June 2023.

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Highlights

• •Molecular imprinted membrane catalytic reactor was prepared.

• •MICMs were used to improve the efficiency of advanced oxidation.

• •The coupling effect of MICMs was studied.

• •The mechanism of SMX degradation in MICMs was analyzed.

Abstract

Improving the efficiency of advanced oxidation technology to remove low concentration pollutants is one of the important problems in water treatment. In this study, a molecularly imprinted catalytic membrane (MICM) reactor has been designed and developed to solve this problem. The results showed that the MICM rapidly separated and degrade refractory pollutants in complex aqueous media, while significantly improving oxidation efficiency. Compared to Fe3O4, rate constants on the MICM in three different systems were significantly increased 3.5–33-fold, with kobs in persulfate (PS), hydrogen peroxide (H2O2), and peroxymonosulfate (PMS) oxidation systems reaching 0.093 min−1, 0.073 min−1, and 0.142 min−1, respectively. The results of dynamic experiments showed that sulfamethoxazole (SMX) removal efficiencies in MICM/PMS and H2O2 oxidation systems could exceed 90% within 150 min. Studies have shown that the targeting catalysis process of the MICM benefited from a coupling effect, which endows the MICM with stronger hydrophilicity and superior stability. Based on detection results and kinetic calculations, MICMs could not only selectively identify target pollutants, but also adsorb oxidants to promote non-free radical reactions represented by 1O2 in PMS oxide process. This enabled more efficient contact between the oxidant, the targeted pollutant, and the catalytic core of the MICM, increasing the oxidation efficiency. This study may provide reference for improving the efficiency of advanced oxidation processes and the application of molecularly imprinted catalysts.