首页|Carbon-doped CuFe2O4 with C-O-M channels for enhanced Fenton-like degradation of tetracycline hydrochloride:From construction to mechanism

Carbon-doped CuFe2O4 with C-O-M channels for enhanced Fenton-like degradation of tetracycline hydrochloride:From construction to mechanism

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Carbon-doped copper ferrite(C-CuFe2O4)was synthesized by a simple two-step hydrothermal method,which showed enhanced tetracycline hydrochloride(TCH)removal efficiency as compared to the pure CuFe2O4 in Fenton-like reaction.A removal efficiency of 94％was achieved with 0.2 g L-1 catalyst and 20 mmol L-1 H2O2 within 90 min.We demonstrated that 5％C-CuFe2O4 catalyst in the presence of H2O2 was significantly efficient for TCH degradation under the near-neutral pH(5-9)without buffer.Multiple techniques,including SEM,TEM,XRD,FTIR,Raman,XPS Mossbauer and so on,were conducted to investigate the structures,morphologies and electronic properties of as-prepared samples.The introduction of carbon can effectively accelerate electron transfer by cooperating with Cu and Fe to activate H2O2 to generate·OH and·O2-.Particularly,theoretical calculations display that the p,p,d orbital hybridization of C,O,Cu and Fe can form C-O-Cu and C-O-Fe bonds,and the electrons on carbon can transfer to metal Cu and Fe along the C-O-Fe and C-O-Cu channels,thus forming electron-rich reactive centers around Fe and Cu.This work provides lightful reference for the modification of spinel ferrites in Fenton-like application.

Fenton-like reactionCuFe2O4Tetracycline hydrochloride degradation

Hong Qin、Yangzhuo He、Piao Xu、Yuan Zhu、Han Wang、Ziwei Wang、Yin Zhao、Haijiao Xie、Quyang Tian、Changlin Wang、Ying Zeng、Yicheng Li

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College of Environmental Science and Engineering,Hunan University,Changsha,410082,China

Key Laboratory of Environmental Biology and Pollution Control,Ministry of Education,Hunan University,Changsha,410082,China

Hangzhou Yanqu Information Technology Co.,Ltd.,Y2,2nd Floor,Building 2,Xixi Legu Creative Pioneering Park,No.712 Wen'er West Road,Xihu District,Hangzhou,310003,China

国家自然科学基金国家自然科学基金国家自然科学基金National Program for Support of Top-Notch Young Professionals of China(2014)Program for Changjiang Scholars and Innovative Research Team in University湖南省自然科学基金湖南省自然科学基金

520700775187910151779090IRT-13R172022JJ200132021JJ40098

2024

10.1016/j.gee.2022.09.006

绿色能源与环境(英文)

绿色能源与环境(英文)

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年,卷(期)：2024.9(4)
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