S-doping Fe-Ce composites derived from PBA to accelerate Fe(III)/Fe(II) cycle in the Fenton-like process

被引：2
|
作者：
Qiu, Jinli [1 ,2 ]
Chan, Huifang [1 ]
Zheng, Wenting [1 ]
Feng, Yao [1 ]
Liu, Fuqiang [1 ]
机构：
[1] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Peoples R China
[2] Nanjing Normal Univ, Sch Environm, Jiangsu Prov Engn Res Ctr Environm Risk Prevent &, Nanjing 210023, Jiangsu, Peoples R China
来源：
ENVIRONMENTAL SCIENCE-NANO | 2024年 / 11卷 / 01期
基金：
中国国家自然科学基金;
关键词：
OXYGEN REDUCTION; DEGRADATION; WATER; SULFAMETHOXAZOLE; OXIDATION; ZIF-8; PH;
D O I：
10.1039/d3en00788j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The design of metal-organic framework-derived metal oxides/sulfides is an effective approach for water remediation. A series of Fe-Ce composites (Fe-Ce-S-N) with cluster-like morphology were prepared with prussian blue analogue (PBA) as the precursor in a hydrothermal process. S doping promoted the conversion of Fe(iii) to Fe(ii), which greatly improved the performance of the Fenton-like reaction. The optimized Fe-Ce-S-N catalyst exhibited superior catalytic activity towards sulfamethoxazole (SMZ) degradation (18.63 mgSMZ gcat(-1) min(-1)), showing the largest k value (0.1862 min(-1)), which was 2.1 and 8.1 times higher than that of Fe-Ce-S-H and Fe-Ce-N, respectively. Moreover, the Fe-Ce-S-N catalyst displayed a remarkable reusability, stability and adaptability in Fenton-like systems. Overall, this work provides new insights into extending novel PBA-derived catalysts to significantly improve heterogeneous Fenton-like performances.
引用
收藏
页码：103 / 112
页数：10
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