Internal Electric Field‐Modulated Charge Migration Behavior in MoS2/MIL‐53(Fe) S‐Scheme Heterojunction for Boosting Visible‐Light‐Driven Photocatalytic Chlorinated Antibiotics Degradation DOI
Meng Liu, Yuting Ning, Meng Ren

et al.

Small, Journal Year: 2023, Volume and Issue: 19(46)

Published: July 19, 2023

Inadequate photo-generated charge separation, migration, and utilization efficiency limit the photocatalytic efficiency. Herein, a MoS2 /MIL-53(Fe) photocatalyst/activator with S-scheme heterojunction structure is designed migration behavior modulated by internal electric field (IEF). The IEF intensity enhanced to 40 mV modulating band bending potential depletion layer length of . electron process boosted constructing bridge (Fe-O-S) as driving force, confirmed density functional theory calculation. Compared pristine materials, photocurrent significantly 27.5 times. Contributed visible-light-driven cooperative catalytic degradation high-efficiency direct reduction dichlorination process, satisfactory chlorinated antibiotics removal detoxification performances are achieved. This study opens up new insights into application heterojunctions in activation PDS environmental remediation.

Language: Английский

Enhanced and synergistic catalytic activation by photoexcitation driven S−scheme heterojunction hydrogel interface electric field DOI Creative Commons
Aiwen Wang, Meng Du,

Jiaxin Ni

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 23, 2023

The regulation of heterogeneous material properties to enhance the peroxymonosulfate (PMS) activation degrade emerging organic pollutants remains a challenge. To solve this problem, we synthesize S-scheme heterojunction PBA/MoS2@chitosan hydrogel achieve photoexcitation synergistic PMS activation. constructed photoexcited carriers undergo redox conversion with through transfer pathway driven by directional interface electric field. Multiple pathways greatly reactive oxygen species generation, leading significant increase in doxycycline degradation rate. Meanwhile, 3D polymer chain spatial structure chitosan is conducive rapid capture and electron transport advanced oxidation process, reducing use transition metal activator limiting leaching ions. There reason believe that regulated will provide new perspective for future design research on enhancing heterologous catalysis process.

Language: Английский

Citations

138

Metal–organic framework heterojunctions for photocatalysis DOI
Amarajothi Dhakshinamoorthy, Zhaohui Li, Sihai Yang⧫

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(6), P. 3002 - 3035

Published: Jan. 1, 2024

The present review summarizes the current state-of-the-art in MOF-based heterojunctions three important photocatalytic processes: hydrogen evolution reaction, CO 2 photoreduction and photodegradation of dyes.

Language: Английский

Citations

120

Construction of carbonized polymer dots/potassium doped carbon nitride nanosheets Van der Waals heterojunction by ball milling method for facilitating photocatalytic CO2 reduction performance in pure water DOI
Jintao Dong,

Junze Zhao,

Xingwang Yan

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 351, P. 123993 - 123993

Published: April 24, 2024

Language: Английский

Citations

56

Construction of a 2D/2D Crystalline Porous Materials Based S‐Scheme Heterojunction for Efficient Photocatalytic H2 Production DOI Creative Commons

Haijun Hu,

Xinyu Zhang, Kailai Zhang

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(11)

Published: Jan. 7, 2024

Abstract Generally, the low electron–hole separation efficiency of covalent organic frameworks (COFs) prevents their catalytic performance from reaching satisfactory results. For this reason, creation heterojunctions is considered an effective strategy but usually suffers dimensional mismatch integrated material, even at expense its redox capacity. To overcome these difficulties, a novel 2D/2D S‐scheme heterojunction between H 2 N–Cu–MOF (NCM) and TpPa–1–COF (TP1C) successfully constructed for efficient photocatalytic production. The matching dimensions two crystalline porous materials enables with abundant surface reactive sites, strong interaction optimized electronic structure. Moreover, combination can also form S–scheme heterojunction, which not only promote pair, preserve ability, thus remarkably boosting competence. Consequently, rate optimal 20% NCM/TP1C in production reaches 4.19 mmol g −1 h , 46.5 times higher than that bare NCM, 22.1 folds over pure TP1C. This research offers innovative perspective formation based on crystal solar energy utilization.

Language: Английский

Citations

54

Construction of the copper metal-organic framework (MOF)-on-indium MOF Z-scheme heterojunction for efficiently photocatalytic reduction of Cr(VI) DOI
Jia‐Yue Tian,

Wen-chao Lv,

Ao-song Shen

et al.

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 327, P. 124903 - 124903

Published: Aug. 24, 2023

Language: Английский

Citations

43

Robust Covalent Organic Framework Photocatalysts for H2O2 Production: Linkage Position Matters DOI Creative Commons
Tao Yang, Zhang De, Aiguo Kong

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(22)

Published: March 18, 2024

Covalent organic frameworks (COFs) are promising photocatalysts for hydrogen peroxide (H

Language: Английский

Citations

34

Highly efficient nitrogen fixation over S-scheme heterojunction photocatalysts with enhanced active hydrogen supply DOI Creative Commons

Tong Bao,

Yamin Xi,

Chaoqi Zhang

et al.

National Science Review, Journal Year: 2024, Volume and Issue: 11(5)

Published: March 8, 2024

ABSTRACT Photocatalytic N2 fixation is a promising strategy for ammonia (NH3) synthesis; however, it suffers from relatively low yield due to the difficulty in design of photocatalysts with both high charge transfer efficiency and desirable adsorption/activation capability. Herein, an S-scheme CoSx/ZnS heterojunction dual active sites designed as efficient photocatalyst. The exhibits unique pocket-like nanostructure small ZnS nanocrystals adhered on single-hole CoSx hollow dodecahedron. Within heterojunction, electronic interaction between creates electron-deficient Zn enhanced chemisorption electron-sufficient Co hydrogen supply hydrogenation, cooperatively reducing energy barrier activation. In combination promoted photogenerated electron-hole separation facilitated mass by nanostructure, excellent performance NH3 1175.37 μmol g−1 h−1 achieved. This study provides new insights into fixation.

Language: Английский

Citations

28

Interfacial Charge Transfer Bridge Prolongs Carrier Recombination Lifetimes of CoFe Metal‐Thiolate Framework/Hematite Photoanode for Water Oxidation DOI
Tao Yang, Zongwei Chen, Xin‐Zheng Yue

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(18)

Published: Jan. 21, 2024

Abstract Constructing heterostructural photoanodes is attractive for elevating the photoelectrochemical (PEC) performance, however, it a long‐standing challenge to achieve highly efficient interfacial charge transfer. Herein, CoFe metal‐thiolate framework (CoFe MTF)/Fe 2 O 3 photoanode connected by an Fe─O─N/S bond designed modulate behavior of carriers and improve water oxidation performance. It disclosed that this functions as direct transfer bridge between shallow trap states Fe MTF, leading prolonged carrier recombination lifetimes (85 ns MTF/Fe compared 37 ) enhanced efficiency. Alternatively, robust electric field established in p–n heterojunction, facilitating As expected, exhibits significant enhancement oxidation, resulting three‐fold increase photocurrent density pristine . This study highlights significance designing interfacially bonded photoelectrodes regulate characters carriers.

Language: Английский

Citations

26

Ru@MIL-125/MnOx metal-organic-framework-based cocatalysts for photocatalytic nitrogen fixation DOI

Chuanjiao Wang,

Shuo Wang,

Ping Yi

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 347, P. 123781 - 123781

Published: April 24, 2024

Language: Английский

Citations

25

Engineering a Z-Scheme Heterostructure on ZnIn2S4@NH2-MIL-125 Composites for Boosting the Photocatalytic Performance DOI

En-Ze Deng,

Yan‐Zhong Fan,

Hai‐Ping Wang

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(2), P. 1449 - 1461

Published: Jan. 2, 2024

Constructing a Z-scheme heterostructure on metal-organic framework (MOF) composite with an explicit charge transfer mechanism at the interface is considered to be effective strategy for improving photocatalytic performance of MOFs. Herein, internal electric field (IEF)-induced ZnIn

Language: Английский

Citations

24