Degradation of methyl orange by dielectric films based on contact-electro-catalysis DOI

Xin Yi Zhao,

Yusen Su, Andy Berbille

et al.

Nanoscale, Journal Year: 2023, Volume and Issue: 15(13), P. 6243 - 6251

Published: Jan. 1, 2023

Contact-electro-catalysis (CEC) has been recently proposed for the effective degradation of methyl orange, but reactivity catalysts in CEC process needs further investigation. Here, we have used dielectric films, such as fluorinated ethylene propylene (FEP), modified by inductively coupled plasma (ICP) etching with argon, to replace previously employed micro-powder due their potential scalability, facile recycling process, and possible lower generation secondary pollution. It found that ICP creates cone-like micro/nano structures on surface, thus changes contact angle specific surface area. The value varies non-linearly time attains a maximum after 60 seconds etching. Concurrently, an increased electron transfer is observed, well enhanced efficiency, suggesting special role structure. Finally, KPFM measurements show affinity at summit nanocones. This observation suggests are endowed higher charge ability. In addition, this film-based observed several polymer materials, PET, PTFE, PVC. We view work stepping stone develop into scalable applications, based film technologies.

Language: Английский

Oxidation‐Reduction Molecular Junction Covalent Organic Frameworks for Full Reaction Photosynthesis of H2O2 DOI

Jia‐Nan Chang,

Qi Li, Jingwen Shi

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(9)

Published: Dec. 30, 2022

The full reaction photosynthesis of H2 O2 that can combine water-oxidation and oxygen-reduction without sacrificial agents is highly demanded to maximize the light-utilization overcome complex reaction-process anthraquinone-oxidation. Here, a kind oxidation-reduction molecular junction covalent-organic-framework (TTF-BT-COF) has been synthesized through covalent-coupling tetrathiafulvalene (photo-oxidation site) benzothiazole (photo-reduction site), which presents visible-light-adsorption region, effective electron-hole separation-efficiency photo-redox sites enables generation . Specifically, record-high yield (TTF-BT-COF, ≈276 000 μM h-1 g-1 ) for achieved among porous crystalline photocatalysts. This first work design COFs , might extend scope in production.

Language: Английский

Citations

172
Versatile Photoelectrocatalysis Strategy Raising Up the Green Production of Hydrogen Peroxide DOI
Feiyang Yu,

Yunjie Zhou,

Huaqiao Tan

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(14)

Published: March 1, 2023

Abstract H 2 O plays an irreplaceable role in many aspects of human society, such as paper bleaching, medical disinfection, wastewater treatment, organic synthesis, hydrometallurgy and the electronic industry. However, unsustainability current industrial production process traditional anthraquinone has a serious conflict with green sustainable development. The photo/electrocatalytic from renewable energy advantages being more economical, low‐carbon green, line requirements economy. These catalytic methods have played demonstrative development small molecules, contributing to fundamental understanding general catalysis providing scientific perspective for future new cycles. In this review, authors aim integrate reaction mechanism photocatalytic electrocatalytic production, summarize application recent years, assess modern technologies promoted research, including flux equipment coproduction, etc. This review intends provide clear logic profile directions calls researchers insights into field.

Language: Английский

Citations

107
Clean Production of Hydrogen Peroxide: A Heterogeneous Solar‐Driven Redox Process DOI
Songying Qu, Hao Wu, Yun Hau Ng

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(36)

Published: Aug. 6, 2023

Abstract Hydrogen peroxide is an essential chemical that attracting strong attention for energy and environmental applications. However, the struggle between growing market demand unsustainability of conventional anthraquinone method motivates exploration alternative H 2 O production processes. Although several new processes have been proposed, environmental‐friendly solar‐driven attracts most because only inputs water, oxygen, light energy. The rational design functional photo‐responsive catalysts promotes in photocatalytic photoelectrocatalytic approaches. These are, general, achieved by facilitating preferential adsorption key intermediates OOH*/OH*/O*, enhancing absorption, promoting charge separation, accelerating surface transfer with selective number involved charges. This review systematically summarizes strategies photo(electro)catalysts toward via both water oxidation oxygen reduction pathways. Though route perceived as more popular community, emerging a convincing alternative. Furthermore, prevailing hypotheses, state‐of‐the‐art catalysts, critical challenges, perspectives are discussed depth. aims to enhance comprehension this research field promote interest sustainable production.

Language: Английский

Citations

79
Rapid dissociation of high concentration excitons between [Bi2O2]2+ slabs with multifunctional N-Bi-O sites for selective photoconversion into CO DOI
Guosheng Zhou,

Yangrui Xu,

Liang Chen

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 335, P. 122892 - 122892

Published: May 18, 2023

Language: Английский

Citations

72
Increasing the Photocatalytic Hydrogen Generation Activity of CdS Nanorods by Introducing Interfacial and Polarization Electric Fields DOI
Zheng Qi, Jinbao Chen, Qin Li

et al.

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

Published: July 20, 2023

Cadmium sulfide (CdS) is a photocatalyst widely used for efficient H2 production under visible light irradiation, due to its narrow bandgap and suitable conduction band position. However, the fast recombination of carriers results in their low utilization. In order improve photocatalytic hydrogen production, it reports successful introduction metallic Cd S vacancies on CdS nanorods (CdS NRs) by facile situ chemical reduction method, using thermal treatment process. This procedure generates interfacial polarization electric fields, that significantly performance NRs sodium sulfite aqueous solutions, irradiation (λ >420 nm). The these fields believed charge separation facilitate faster migration, resulting optimized catalyst, with evolution rate up 10.6 mmol-1 g-1 h-1 apparent quantum efficiency (AQE) 12.1% (420 nm), which 8.5 times higher than CdS. work provides useful method introduce metal photocatalysts build local high-performance production.

Language: Английский

Citations

72
Ti3C2-assisted construction of Z-scheme MIL-88A(Fe)/Ti3C2/RF heterojunction: Multifunctional photocatalysis-in-situ-self-Fenton catalyst DOI
Qi Wang, Hao Zhou,

Jianying Qian

et al.

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 190, P. 67 - 75

Published: Jan. 10, 2024

Language: Английский

Citations

72
Regulation of Redox Molecular Junctions in Covalent Organic Frameworks for H2O2 Photosynthesis Coupled with Biomass Valorization DOI

Jia‐Nan Chang,

Jingwen Shi,

Qi Li

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(31)

Published: June 7, 2023

H2 O2 photosynthesis coupled with biomass valorization can not only maximize the energy utilization but also realize production of value-added products. Here, a series COFs (i.e. Cu3 -BT-COF, -pT-COF and TFP-BT-COF) regulated redox molecular junctions have been prepared to study furfuryl alcohol (FFA) photo-oxidation furoic acid (FA). The FA generation efficiency -BT-COF was found be 575 mM g-1 (conversion ≈100 % selectivity >99 %) rate reach up 187 000 μM , which is much higher than -pT-COF, TFP-BT-COF its monomers. As shown by theoretical calculations, covalent coupling Cu cluster thiazole group promote charge transfer, substrate activation FFA dehydrogenation, thus boosting both kinetics increase efficiency. This first report about for valorization, might facilitate exploration porous-crystalline catalysts in this field.

Language: Английский

Citations

68
Light-driven simultaneous water purification and green energy production by photocatalytic fuel cell: A comprehensive review on current status, challenges, and perspectives DOI

Jiahua Ni,

Yanjun Wen,

Donglai Pan

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 473, P. 145162 - 145162

Published: Aug. 2, 2023

Language: Английский

Citations

62
Ternary rGO decorated W18O49 @g-C3N4 composite as a full-spectrum-responded Z-scheme photocatalyst for efficient photocatalytic H2O2 production and water disinfection DOI
Xinyu Li, Fei Ye,

Hui Zhang

et al.

Journal of environmental chemical engineering, Journal Year: 2023, Volume and Issue: 11(4), P. 110329 - 110329

Published: June 10, 2023

Language: Английский

Citations

50
Highly Efficient FeIII‐initiated Self‐cycled Fenton System in Piezo‐catalytic Process for Organic Pollutants Degradation DOI
Jing Xu, Qiang Zhang, Xin Gao

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(32)

Published: June 15, 2023

Piezo-catalytic self-Fenton (PSF) system has been emerging as a promising technique for wastewater treatment, while the competing O2 reductive hydrogen peroxide (H2 ) production and FeIII reduction seriously limited reaction kinetics. Here, we develop two-electron water oxidative H2 (WOR-H2 coupled with over /BiOIO3 piezo-catalyst highly efficient PSF. It is found that presence of can simultaneously initiate WOR-H2 to FeII , thereby enabling rapid kinetics towards subsequent Fenton /FeII . The initiating PSF offers exceptional self-recyclable degradation pollutants rate constant sulfamethoxazole (SMZ) 3.5 times classic -PSF system. This study new perspective constructing systems shatters preconceived notion in reaction.

Language: Английский

Citations

48