Rational design of triazine-based conjugated polymers with enhanced charge separation ability for photocatalytic hydrogen evolution DOI

Changzhi Han,

Jiaxin Ma,

Xuan Ai

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 659, P. 984 - 992

Published: Jan. 9, 2024

Language: Английский

Effect of Controlling Thiophene Rings on D-A Polymer Photocatalysts Accessed via Direct Arylation for Hydrogen Production DOI Creative Commons

Dong‐Nai Ye,

Lei Liu,

Qimin Peng

et al.

Molecules, Journal Year: 2023, Volume and Issue: 28(11), P. 4507 - 4507

Published: June 1, 2023

Conjugated polymer photocatalysts for hydrogen production have the advantages of an adjustable structure, strong response in visible light region, energy levels, and easy functionalization. Using atom- step-economic direct C–H arylation method, dibromocyanostilbene was polymerized with thiophene, dithiophene, terthiophene, fused thienothiophene dithienothiophene, respectively, to produce donor–acceptor (D-A)-type linear conjugated polymers containing different thiophene derivatives conjugation lengths. Among them, D-A photocatalyst constructed from dithienothiophene could significantly broaden spectral response, a evolution rate up 12.15 mmol h−1 g−1. The results showed that increase number rings on building blocks beneficial photocatalytic cyanostyrylphene-based polymers. For unfused dithiophene enabled more rotation freedom between reduced intrinsic charge mobility, resulting lower performance accordingly. This study provides suitable process design electron donors photocatalysts.

Language: Английский

Citations

79
Atomistic Structural Engineering of Conjugated Microporous Polymers Promotes Photocatalytic Biomass Valorization DOI
Yuchen Yan, Xiaohan Yu,

Chaochen Shao

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(42)

Published: June 9, 2023

Abstract Polymer photocatalysts have great promise for solar fuel production due to their flexible structural and functional designability. However, photocatalytic efficiencies are still unsatisfactory, limited by intrinsically large exciton binding energy fast charge recombination. Herein, the atomistic engineering of donor–acceptor (D−A) polymer enhanced separation hydrogen is proposed. By changing electron affinity acceptor units, delocalization polymeric networks can be readily tuned, resulting in efficiency activity. The optimal sample shows highest H 2 rate 3207 µmol g −1 h presence ascorbic acid as sacrificial agent. Moreover, coupled with almost stoichiometrical conversion 5‐hydroxymethyl furfural 2,5‐diformylfuran.

Language: Английский

Citations

45
Molecular modification: A promising strategy for the design of donor-acceptor-type organic polymers photocatalyst DOI
Yaocheng Deng,

Yu Shi,

Ling Li

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 352, P. 124043 - 124043

Published: April 21, 2024

Language: Английский

Citations

20
Conjugated porous polymers for photocatalysis: The road from catalytic mechanism, molecular structure to advanced applications DOI
Shanlin Qiao, Mengyu Di, Jia‐Xing Jiang

et al.

EnergyChem, Journal Year: 2022, Volume and Issue: 4(6), P. 100094 - 100094

Published: Oct. 7, 2022

Language: Английский

Citations

56
Recent Progress of Amorphous Porous Organic Polymers as Heterogeneous Photocatalysts for Organic Synthesis DOI
Yang Wang, Yong Yang,

Qinghua Deng

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(51)

Published: Aug. 10, 2023

Abstract The establishment of green and environmental friendly sunlight‐driven organic reactions has received increasing attention since the 21st century. By virtue their functional designability, micromesoporous structure, thermal/chemical stability, porous polymers (POPs) have exhibited enormous promise in photocatalytic as ideal potential alternatives to conventional small molecule inorganic semiconductor catalysts. In particular, amorphous POPs are simplified terms preparation conditions process flow. Herein, various POP materials based on intrinsic microporosity, hypercrosslinked polymers, conjugated microporous aromatic frameworks reviewed, while typical synthetic strategies briefly introduced. It also highlights an overview research progress oxidation, coupling, reduction, cycloaddition, polymerization at home abroad recent years. Finally, challenges prospects for future presented.

Language: Английский

Citations

41
Hydroxyl-modified Nb4C3Tx MXene@ZnIn2S4 sandwich structure for photocatalytic overall water splitting DOI
Xing Liu, Jian Zhang, Jia Xu

et al.

Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 633, P. 992 - 1001

Published: Nov. 29, 2022

Language: Английский

Citations

40
Narrowing the bandgaps of thiazolo[5,4-d]thiazole-bridged conjugated microporous polymers to capture green light for selective oxidation of amines DOI

Fengwei Huang,

Xiaoyun Dong,

Yuexin Wang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 330, P. 122585 - 122585

Published: March 7, 2023

Language: Английский

Citations

34
Molecular Engineering in D-π-A-A-Type Conjugated Microporous Polymers for Boosting Photocatalytic Hydrogen Evolution DOI

Changzhi Han,

Liwen Hu,

Shenglin Jin

et al.

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(30), P. 36404 - 36411

Published: July 18, 2023

Conjugated microporous polymer (CMP) photocatalysts with donor-π-acceptor (D-π-A) or donor-acceptor (D-A) structures have garnered great attention for solar-driven hydrogen generation because of their inherent charge separation nature and high surface area. Herein, we design a series D-π-A-A-type CMP to uncover the influence content dibenzo[b,d]thiophene-S-S-dioxide (BTDO) acceptor on photocatalytic activity. The results demonstrate that in affects electronic structure, availability reaction sites, between light-generated electrons holes, which mainly determine performance H2 release. Benefiting from synergy light absorption, hydrophilicity, active bare PyT-BTDO-2 an optimized BTDO exhibits production rate 230.06 mmol h–1 g–1 under simulated sunlight, manifesting strategy D-π-A-A structural is efficacious boosting photocatalysts.

Language: Английский

Citations

30
Numerous defects induced by exfoliation of boron-doped g-C3N4 towards active sites modulation for highly efficient solar-to-fuel conversion DOI

Mahmoud Kamal Hussien,

Amr Sabbah, Mohammad Qorbani

et al.

Materials Today Sustainability, Journal Year: 2023, Volume and Issue: 22, P. 100359 - 100359

Published: Feb. 22, 2023

Language: Английский

Citations

24
Naphthalenediimide‐Based Polymer Dots with Dual Acceptors as a New Class of Photocatalysts for Photocatalytic Hydrogen Generation under Visible Light Irradiation DOI
Islam M. A. Mekhemer,

Ying‐Sheng Wu,

Ahmed M. Elewa

et al.

Solar RRL, Journal Year: 2024, Volume and Issue: 8(6)

Published: Jan. 17, 2024

Organic‐conjugated polymer dots (Pdots) are emerging as promising photocatalysts for solar‐driven hydrogen production. However, organic solvents commonly used cosolvents in photocatalytic systems to promote the dispersion of materials and improve overall efficiency process. Herein, two naphthalenediimide (NDI)‐based Pdots, with without surfactant, fabricated presented highly efficient stable visible‐light‐driven generation a solvent‐free system first time. The prepared Pdots exhibit high activity remarkable photostability. Achieving long‐term photostability is essential future commercialization large‐scale Furthermore, NDI‐BTF‐PS‐PEG‐COOH dual acceptor (A 1 ‐D‐A 2 ‐D system) consisting strong (NDI, A ) weak (BTF, efficiencies stabilities Pt‐cocatalyst over 72 h. Thus, constructing NDI‐based approach developing

Language: Английский

Citations

11