文献类型：期刊文献

英文题名：Magnetic Fe/carbon/sodium alginate hydrogels for efficient degradation of norfloxacin in simulated wastewater

作者：Liu, Da[1];Gu, Wenyi[1,2];Zhou, Wenqi[1];Xu, Ying[1];He, Wenjia[1];Liu, Lizheng[1];Zhou, Liang[1,3];Lei, Juying[1,3,4,5];Zhang, Jinlong[4,6,7];Liu, Yongdi[1,3,4]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Reso, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Shanghai Geotech Engn Detecting Ctr, 522 Huanzhen South Rd, Shanghai 200442, Peoples R China;[3]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Shanghai Engn Res Ctr Multimedia Environm Catalys, 130 Meilong Rd, Shanghai 200237, Peoples R China;[5]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[6]East China Univ Sci & Technol, Sch Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[7]East China Univ Sci & Technol, Sch Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Joint Int Res Lab Precis Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：369

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20223312562207);WOS:【SCI-EXPANDED(收录号:WOS:000888137800002)】；

基金：This work was financially supported by the National Natural Science Foundation of China (22176061, 22076046), the Science and Technology Commission of Shanghai Municipality (19ZR1472400, 19230711300, 20DZ2250400), and the Fundamental Research Funds for the Central Universities (222201818014 and 50321022017009).

语种：英文

外文关键词：MOF-derived materials; Hydrogels; Sodium alginate; Norfloxacin; Fenton degradation

摘要：The activation of hydrogen peroxide (H2O2) by Fe/carbon composites has been widely used for the removal of antibiotics. However, the secondary pollution of iron ions limits the application of Fe2+/H2O2 system. In this work, three kinds of hydrogel materials combining metal-organic framework (MOF)-derived magnetic Fe/porous carbon (MagFePC) with sodium alginate (SA), polyacrylic acid (PAA) and agarose (AG) were prepared by different methods for removal of norfloxacin (NOR) antibiotics in simulated wastewater. After comparison, MagFePC/SA hydrogels synthesized by a titration forming method were found to have the advantages of good toughness, abundant pores and best Fenton activity. MagFePC/SA can effectively activate H2O2 to remove NOR under neutral conditions, and there was almost no leaching of iron ions, causing no secondary pollution to the environment. The effects of pH, ionic strength and surfactants on the degradation performance for NOR were studied. Mechanism study revealed that center dot O-2(-) and O-1(2) were the main active species for the degradation of NOR, and the materials still had good stability and reusability after repeated cycles. More important, we built a simple automated unit for wastewater treatment under laboratory conditions that can completely degrade a 5 mg/L NOR solution at a flow rate of 2 mL/min. Current works showed that MagFePC/SA had the advantages of simple synthesis, outstanding degradability, excellent stability and eco-friendly reaction, which was a wastewater treatment material with good prospect for industrial application.