La^(3+)@BC500-S_(2)O_(8)^(2−)system for removal of sulfonamide antibiotics in water
作者机构：School of Chemical and Environmental EngineeringShanghai Institute of TechnologyShanghai 201418China State Key Laboratory of Pollution Control and Resources ReuseKey Laboratory of Yangtze River Water Environment of MOENational Engineering Research Center of Protected AgricultureShanghai Engineering Research Center of Protected AgricultureTongji UniversityShanghai 200092China
出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)
年 卷 期：2024年第146卷第12期
页 面：140-148页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金：supported by the Key Projects of Intergovern-mental International Scientific and Technological Innovation Cooperation(No.2022YFE0120600) the National Natural Sci-ence Foundation of China(Nos.21978224 and U21A20322) the Science and Technology Commission of Shanghai Munic-ipality(Nos.21dz1202400,22dz1208300,and 22dz1209300)
主 题：Sulfadiazine Sulfamethoxazole La^(3+)@BC500 Persulfate
摘 要：Sulfonamide antibiotics(SAs)widely used have potentially negative effects on human beings and *** and advanced oxidation methods have been exten-sively applied in SAs wastewater *** this study,compared with Al^(3+)@BC500 and Fe^(3+)@BC500,La^(3+)@BC500 for activating persulfate(S2O82−)had the best effect removal per-formance of sulfadiazine(SDZ)and sulfamethoxazole(SMX).Morphology,acidity,oxygen-containing functional groups,and loading of La^(3+)@BC500 were analyzed by techniques,in-cluding EA,BET,XRD,XPS,*** results show that with the increase of La^(3+)loading,the surface characteristics of biochar gradually changed from CaCO_(3)to LaCO_(3)*** EPR technology,it is proved that LaCO_(3)OH on the surface of La^(3+)@BC500 can not only acti-vate S2O82−to generate SO_(4)^(−)•,but also to produce•*** the optimization experiment,the optimal dosage of La^(3+)is between 0.05 and 0.2(mol/L)/*** had a good removal effect at pH(5-9),but SMX had a good removal effect only at pH=*** potential also proves that the material is more stable under acidic *** removal process of SDZ is more in accord with pseudo-first-order kinetics(R^(2)=0.9869),while SMX is more in line with pseudo-second order kinetics(R^(2)=0.9926).
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