Biomimetic O2-carrying and highly in-situ H2O2 generation using Ti3C2 MXene/MIL-100(Fe) hybrid via Fe-Protoporphyrin bridging for photo-fenton synergistic degradation of thiacloprid

被引：62
作者：
Hu, Yang [1 ]
Zhong, Zhen [1 ]
Lu, Mengting [1 ]
Muhammad, Yaseen [2 ]
Shah, Syed Jalil [1 ]
He, Hui [1 ]
Gong, Wenxue [1 ]
Ren, Yaofei [1 ]
Yu, Xin [1 ]
Zhao, Zhongxing [1 ]
Zhao, Zhenxia [1 ]
机构：
[1] Guangxi Univ, Sch Chem & Chem Engn, Coll Light Ind & Food Engn, Guangxi Key Lab Clean Pulp & Papermaking & Pollut, Nanning 530004, Peoples R China
[2] Univ Peshawar, Inst Chem Sci, Peshawar 25120, KP, Pakistan
来源：
CHEMICAL ENGINEERING JOURNAL | 2022年 / 450卷
基金：
中国国家自然科学基金;
关键词：
Fe-protoporphyrin bridging MXene/MOFs; Schottky junction; Biomimetic O-2-carrying; In-situ H2O2 generation; Synergistic photo-Fenton degradation; METAL-ORGANIC FRAMEWORK; PHOTOCATALYTIC PERFORMANCE; CATALYTIC-ACTIVITY; REDUCTION; CARBON; PORPHYRIN; G-C3N4; PHOTODEGRADATION; NANOSHEETS; STRATEGY;
D O I：
10.1016/j.cej.2022.137964
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Efficient and deep degradation for organic contaminants in the absence of externally supplied H2O2 is still a challenge and research hotspot for photo-Fenton catalysis. In this work, a novel Ti(3)C(2 )MXene/MIL-100(Fe) hybrid via Fe-protoporphyrin bridging was proposed to in-situ generate H2O2 for photo-Fenton catalytic degradation of thiacloprid (TCL). The generated Schottky junction between MXene and MIL-100(Fe) and bio-mimetic oxygen-carrying from Fe-protoporphyrin constructed a synergistic system to promote H2O2 generation and photo-Fenton reaction. As expected, MXene/MIL-100(Fe) exhibited 12 times higher of H2O2 generation rate (reaching 1175.2 mu mol/L under air-bubble), and 24 times of degradation rate and 3.7 times of mineralization rate for TCL compared to MIL-100(Fe). In addition, MXene/MIL-100(Fe) possessed 21-60 times higher TCL degra-dation rate than many of reported photo-Fenton catalysts in H2O2-free system. MXene/MIL-100(Fe) realized > 80 % TOC removal of TCL (80 mg/L) within 120 min, and exhibited excellent catalytic stability (> 97 % TCL degradation) for 10 successive reuses.
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页数：17
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