Construction of ultra-stable and Z-scheme Fe-Graphdiyne/MIL-100(Fe) photo-Fenton catalyst with C = C-Fe|O interface for the highly enhanced catalytic degradation of Dinotefuran

被引：51

作者：

Zhang, Zhengsheng ^{[1
]}

Muhammad, Yaseen ^{[2
]}

Chen, Yanhuang ^{[3
]}

Shah, Syed Jalil ^{[1
]}

Peng, Yi ^{[1
]}

Shao, Shan ^{[1
]}

Wang, Ruimeng ^{[1
]}

Li, Xuesheng ^{[1
]}

Liu, Huibiao ^{[3
]}

Zhao, Zhongxing ^{[1
]}

机构：

[1] Guangxi Univ, Sch Chem & Chem Engn, Guangxi Key Lab Agroenvironm & Agroprod Safety, Nanning 530004, Peoples R China

[2] Univ Peshawar, Inst Chem Sci, Peshawar 25120, KP, Pakistan

[3] Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2021年 / 426卷

基金：

中国国家自然科学基金;

关键词：

Graphdiyne; Dinotefuran degradation; Photo-corrosion resistance; C=C-Fe; O interface; Z-scheme Fe-GDY(3)@MIL(Fe) catalyst; METAL-ORGANIC FRAMEWORKS; VISIBLE-LIGHT; PHOTOCATALYTIC DEGRADATION; HYDROGEN-PRODUCTION; WASTE-WATER; GRAPHDIYNE; MIL-100(FE); OXIDATION; THIAMETHOXAM; PERFORMANCE;

D O I：

10.1016/j.cej.2021.131621

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

High photo-Fenton catalytic activity and stable recycling performance are the main challenges for Fe-based metal-organic frameworks in practical applications of pesticide degradation. Herein, graphdiyne (GDY) with a unique sp/sp2 pi-conjugated structure was proposed to composite with MIL-100(Fe) to form the Z-scheme photocatalyst Fe-GDY3@MIL(Fe) for dinotefuran (DTF) degradation. A unique C = C-Fe|O interface was established between Fe-GDY and Fe-MOF owing to the confinement of GDY for anchoring Fe. Fe-GDY3@MIL(Fe) composite having tight C = C-Fe|O interface exhibited the highly conductive Z-scheme structure and dispersed Fe sites, which can efficiently enhance redox ability and accelerate Fe(III)/Fe(II) conversion cycle. Therefore, FeGDY3@MIL(Fe) showed 7-80 times of degradation kinetics and 2-5 times of mineralization kinetics compared to the state-of-the-art catalysts under relatively same conditions. Moreover, fast charge separation promoted the chemical stability and photo-corrosion resistance of MIL-100(Fe), which significantly enhanced catalytic stability and life-time.

引用

页数：16

共 73 条

[1] Novel WO3/Fe3O4 magnetic photocatalysts: Preparation, characterization and thiacloprid photodegradation [J].