Celebrating Ten Years of Covalent Organic Frameworks for Solar Energy Conversion: Past, Present and Future DOI Creative Commons
Andrés Rodríguez‐Camargo, Kenichi Endo, Bettina V. Lotsch

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(49)

Published: Aug. 22, 2024

Abstract Accelerated anthropogenic emission of greenhouse gases due to increasing energy demands has created a negative impact on our planet. Therefore, the replacement fossil by renewable resources become paramount interest, both societally and scientifically. It is within this setting that organic photocatalysts have emerged as new generation earth‐abundant catalysts for conversion solar radiation into chemical energy. In 2014, first example covalent framework (COF) photocatalyst hydrogen evolution reaction was reported group, which not only marked beginning COF photocatalysis fuel production but also helped accelerate research “soft photocatalysis” based porous polymers in general. last decade, significant progress been made toward developing COFs robust, molecularly precise platforms emulating artificial photosynthesis. This mini‐review commemorates 10th anniversary gives brief historical overview milestones field since its inception 2014. We review development related photocatalytic transformations, including evolution, oxygen overall water splitting, CO 2 reduction, N fixation, alcohol oxidation. discuss lessons learned design structure‐property‐function relationships photocatalysts, future perspectives challenges are given.

Language: Английский

Defective High-Crystallinity g-C3N4 Heterostructures by Double-End Modulation for Photocatalysis DOI
Tao Jiang, Zhaowu Wang,

Guo Wei

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(4), P. 1915 - 1922

Published: April 3, 2024

Photocatalytic overall water splitting is difficult due to the limitations of band structure, solar absorption efficiency, and carrier recombination. Rich nitrogen vacancies containing g-C3N4 nanosheets were prepared by spark plasma sintering. By modifying highly crystalline graphitic carbon nitride (g-C3N4) with rich as hydrogen- oxygen-producing ends building a Z-scheme heterostructure, can be achieved. Hydrogen oxygen evolution rates (λ > 320 nm) 1.51 0.75 mmol g–1 h–1 reported highest solar-to-hydrogen efficiency 1.39% for pure catalyst cocatalysts under an AM1.5G filter (100 mW cm–2) are reached. The double-ended modulation method improves photocatalytic high-crystallinity defect-rich g-C3N4.

Language: Английский

Citations

65
Recent advances of modification effect in Co3O4-based catalyst towards highly efficient photocatalysis DOI
Riki Subagyo, Azis Yudhowijoyo, Novia Amalia Sholeha

et al.

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 650, P. 1550 - 1590

Published: July 20, 2023

Language: Английский

Citations

51
N-Deficient B-Doped g-C3N4/CdS Heterojunction-Based PEC-FL Biosensor Assisted by CRISPR-Cas12a System for Ultrasensitive Determination of microRNA DOI

Qingyu Du,

Haoyu Zhang,

Yingna Bi

et al.

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

Near-infrared light (NIR)-driven photoelectrochemical (PEC) processes are mainly faced with the limitation of weak photocurrents. Here, N-deficient B-doped g-C3N4/CdS (NB-g-C3N4/CdS) is proposed to construct a NIR-driven PEC biosensor assisted by CRISPR-Cas12a system for determination microRNA-21 (miRNA-21). To promote optical absorption as well separation photogenerated electrons and holes g-C3N4, NB-g-C3N4/CdS constructed via engineering electronic band structure in terms N defect, B doping, heterojunction, achieving high performance. obtain luminescence efficiency exciting under NIR, core–shell NaYF4:Yb3+, Tm3+@NaYF4 upconversion nanoparticles (UCNPs) repaired defects prepared. Furthermore, rolling circle amplification (RCA)-assisted integrated fragment DNA on UCNPs, sensitive detection miRNA-21. On one hand, uncleavaged signal probes UCNPs combined through π–π stacking interaction, generating photocurrents irradiation NIR. other cleavaged which cannot link exhibited fluorescence (FL) signals. The PEC-FL dual-mode provides mutual authentication testing results demonstrates ultrasensitivity (the limit 1.1 fM mode 7.0 FL mode) excellent specificity, promising clinical analysis miRNA.

Language: Английский

Citations

3
Mechanism insight into triple S-Scheme intermolecular carbon nitride homojunction with robust built-in electric field for highly enhanced photocatalytic hydrogen evolution DOI
Hao Yang, Shaodong Sun, Jieli Lyu

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 481, P. 148297 - 148297

Published: Dec. 25, 2023

Language: Английский

Citations

42
Fabrication of NiCo2S4/N-deficient g-C3N4 for efficient photocatalytic H2 production DOI
Tao Yang, Xiao Hu,

Jun Fan

et al.

Surfaces and Interfaces, Journal Year: 2023, Volume and Issue: 42, P. 103352 - 103352

Published: Sept. 6, 2023

Language: Английский

Citations

35
MXenes/CNTs-based hybrids: Fabrications, mechanisms, and modification strategies for energy and environmental applications DOI
Jizhou Jiang, Fangyi Li, Lei Ding

et al.

Nano Research, Journal Year: 2023, Volume and Issue: 17(5), P. 3429 - 3454

Published: Dec. 7, 2023

Language: Английский

Citations

35
Experimental and theoretical investigation of sulfur-doped g-C3N4 nanosheets/FeCo2O4 nanorods S-scheme heterojunction for photocatalytic H2 evolution DOI
Haitao Wang,

Lianglang Yu,

Jiahe Peng

et al.

Nano Research, Journal Year: 2024, Volume and Issue: 17(9), P. 8007 - 8016

Published: July 27, 2024

Language: Английский

Citations

18
Advances in Defect Engineering of Metal Oxides for Photocatalytic CO2 Reduction DOI Creative Commons
Kang Zhong, Peipei Sun, Hui Xu

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: April 30, 2024

Abstract Photocatalytic CO 2 reduction technology, capable of converting low‐density solar energy into high‐density chemical energy, stands as a promising approach to alleviate the crisis and achieve carbon neutrality. Semiconductor metal oxides, characterized by their abundant reserves, good stability, easily tunable structures, have found extensive applications in field photocatalysis. However, wide bandgap inherent oxides contributes poor efficiency photocatalytic reduction. Defect engineering presents an effective strategy address these challenges. This paper reviews research progress defect enhance performance summarizing classifications, preparation methods, characterization techniques. The focus is on engineering, represented vacancies doping, for improving oxide photocatalysts. includes advancements expanding photoresponse range, enhancing photogenerated charge separation, promoting molecule activation. Finally, provides summary current issues challenges faced along with prospective outlook future development technology.

Language: Английский

Citations

17
Π‐Bridge Modulations in D–π–A Conjugated Microporous Polymers to Facilitate Charge Separation and Transfer Kinetics for Efficient Photocatalysis DOI
Chunlei Li,

Hetao Xu,

Hao Xiong

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(44)

Published: May 16, 2024

Abstract The burgeoning field of conjugated microporous polymers (CMPs) has generated widespread interest due to their potential as photocatalysts for hydrogen production from water. Nevertheless, photocatalytic performance is sometimes hindered by inadequate charge separation and transfer, coupled with rapid recombination. Herein, a strategy enhance via the customization π ‐bridges through modulation heteroatoms in series donor‐ ‐acceptor (D‐ ‐A) CMPs proposed. This affords optimized energy levels improved thus boosting efficiency. Among various heteroatom substitutions, S‐doped CMP (10 mg) demonstrates highest evolution rate 203 µmol h −1 (AQY 450nm = 7.4%) under visible light irradiation. Subsequent experimental analysis reveals its superior can be largely related minimized exciton binding energy, facilitated transfer efficiency, impeded recombination among these heteroatom‐doped D‐ ‐A CMPs. research paves way rational design modification organic semiconductors advanced solar‐driven photocatalysis promoting transfer.

Language: Английский

Citations

16
S‐Modified Graphitic Carbon Nitride with Double Defect Sites For Efficient Photocatalytic Hydrogen Evolution DOI

Yongkang Quan,

Ruidong Li,

Xingzhou Li

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 3, 2024

Abstract Graphitic carbon nitride (gC 3 N 4 ) is an attractive photocatalyst for solar energy conversion due to its unique electronic structure and chemical stability. However, gC generally suffers from insufficient light absorption rapid compounding of photogenerated charges. The introduction defects atomic doping can optimize the improve carrier separation efficiency. Herein, high efficiency photocatalysis hydrogen evolution in visible achieved by S‐modified double‐deficient site strategy. Defect engineering forms abundant unsaturated sites cyano (─C≡N), which promotes strong interlayer C─N bonding interactions accelerates charge transport . S tunes semiconductors, formation C─S─C bonds optimizes electron‐transfer paths bonding, enhances light. Meanwhile,C≡N acts as electron trap capture photoexcited electrons, providing active reduction H + hydrogen. photocatalytic SDCN (1613.5 µmol g −1 h 31.5 times higher than that pristine MCN (51.2 ). situation transfer mechanism photocatalysts are investigated detail a combination experimental theoretical calculations.

Language: Английский

Citations

13