Significant concerns have been raised over the removal of antibiotics,such as tetracyclines(TC)in aquatic environments.Herein,we synthesized a new type of heterogeneous catalyst by supporting Fe0 nanopartciles(FeNPs)onto carbon coated ZIF-8(C@ZIF-8).The carbon layer formed by glucose was beneficial to maintain the morphology and porous structure of ZIF-8,which can also appropriately improve the hydrophobicity of ZIF-8 for enriching the TC.The as-prepared FeNPs-C@ZIF-8 catalyst featured an extreme large specific surface area(1122.16 m2/g),and the supported FeNPs with an average diameter of 6.13 nm exhibited a high dispersity on the supporting matrix of C@ZIF-8.For the removal of tetracycline,the large specific surface area of FeNPs-C@ZIF-8 allowed for an easy access of tetracycline to the FeNPs,while the highly dispersed FeNPs served as actived sites for the efficient degradation of tetracycline.A synergistic effect between adsorption and catalytic degradation of FeNPs(5％,mass fraction)-C@ZIF-8 was proven to be responsible for the high-performance removal of tetracycline with the removal efficiency high up to 93.02％at pH 5,25℃.The FeNPs-C@ZIF-8 was capable of recycling after activation with supplementary Fe0,which still maintained a high removal efficiency of 75.52％in the 5th cycle within 20 min.

XIAO Meng;Qi Wenqian;JIA Shuanghui;PANG Mengting;SHI Fengcheng;MAO Hui

College of Chemical Engineering,Sichuan University,Chengdu 610065,P.R.China;College of Chemistry and Materials Science,Sichuan Normal University,Chengdu 610066,P.R.China;Key Laboratory for Harmful Components and Tar Reduction in Cigarette of Sichuan Province,China Tobacco Sichuan Industrial Co.,Ltd.,Chengdu 610066,P.R.China

高等学校化学研究（英文版）

[1]XIAO Meng;Qi Wenqian;JIA Shuanghui;PANG Mengting;SHI Fengcheng;MAO Hui-.High-performance Removal of Tetracycline Enabled by Fe0 Nanoparticles Supported on Carbon@ZIF-8)[J].高等学校化学研究（英文版）,2022(06):1349-1355

nanopartciles,actived

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