Deformation of charge density activated by conductive carbon with the piezoelectric effect of tourmaline for highly promoting Fe3+/Fe2+ cycle in Fenton-like process

被引:39
作者
Zhu, Yingshi [1 ,2 ]
Zhu, Jianqiu [2 ]
Shentu, Huabin [3 ]
Wei, Yanfei [2 ]
Wei, Jun [3 ]
Lei, Lecheng [1 ,4 ]
Li, Yuru [2 ]
Yu, Tao [2 ]
Li, Zhongjian [1 ,4 ]
Hou, Yang [1 ,4 ]
Yang, Bin [1 ,4 ]
机构
[1] Zhejiang Univ, Coll Chem & Biol Engn, Key Lab Biomass Chem Engn, Minist Educ, Hangzhou 310058, Peoples R China
[2] Zhejiang Environm Technol Co Ltd, Hangzhou 311100, Peoples R China
[3] Power China Huadong Engn Co Ltd, Hangzhou 311112, Peoples R China
[4] Inst Zhejiang Univ Quzhou, Quzhou 324000, Peoples R China
来源
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY | 2023年 / 334卷
基金
中国国家自然科学基金;
关键词
Tourmaline; Conductive carbon; Electron transfer; Fe 3+reduction; Fenton process; ORGANIC POLLUTANTS; DEGRADATION; SIZE; CATALYST; REMOVAL; INSIGHT; OXIDE;
D O I
10.1016/j.apcatb.2023.122824
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A novel Fe3O4 coated conductive carbon modified tourmaline (Tml@C@Fe3O4) catalyst with the nuclear shell structure was prepared to boost the Fe3+/Fe2+ cycle in Fenton-like process. The catalyst was prepared by a simple combination of hydrothermal method and calcination. The results showed that the smaller size of Tml in the core was beneficial to get the stronger piezoelectric effect. The reduction efficiency of Fe3+ for Tml@C was highly boosted by the deformation of charge density, and the optimum was 10.24 times of that before modification with an average size of 1.3 & mu;m. Furthermore, the embedded layer of conductive carbon can also reduce iron leaching and shrink ultimate pH variation. The removal efficiencies of sulfathiazole (STZ) were 72.82-100 % at pH 3-7 in the present work. Therefore, this study provides a novel Fenton-like catalyst for the efficient treatment of antibiotics at a wide pH range.
引用
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页数:9
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