Graphitic carbon nitride (g-C₃N₄) as an emerging photocatalyst for sustainable environmental applications: a comprehensive review

RSC Sustainability, Journal Year: 2023, Volume and Issue: 2(2), P. 265 - 287

Published: Dec. 4, 2023

g-C 3 N 4 : a sustainable game-changer in photocatalysis. This work explores synthesis, properties, mechanisms, and applications, addresses challenges, charts future trends.

Language: Английский

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Design and optimization of TiO2-based photocatalysts for efficient removal of pharmaceutical pollutants in water: Recent developments and challenges

Journal of Water Process Engineering, Journal Year: 2023, Volume and Issue: 57, P. 104597 - 104597

Published: Dec. 12, 2023

Language: Английский

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In-site growing honeycombed integrated S-doped-g-C3N4-NiCo2O4 PMS activator for round-the-clock ultra-efficient degradation of multiple pollutants

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 129492 - 129492

Published: Sept. 6, 2024

Language: Английский

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Promoting the suitability of graphitic carbon nitride and metal oxide nanoparticles: A review of sulfonamides photocatalytic degradation

Chemosphere, Journal Year: 2024, Volume and Issue: 351, P. 141218 - 141218

Published: Jan. 22, 2024

Language: Английский

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A review of g‐C₃N₄‐based photocatalytic materials for photocatalytic CO₂ reduction

Carbon Neutralization, Journal Year: 2024, Volume and Issue: 3(4), P. 557 - 583

Published: May 8, 2024

Abstract Currently, the concentration of carbon dioxide (CO 2 ) has exceeded 400 ppm in atmosphere. Thus, there is an urgent need to explore CO reduction and utilization technologies. Photocatalytic technology can convert valuable hydrocarbons (CH 4 , CH 3 OH, C H 5 etc.), realizing conversion solar energy chemical as well solving problems fossil fuel shortage global warming. Graphitic nitride (g‐C N ), a two‐dimensional nonmetallic semiconductor material, shows great potential field photoreduction due its moderate bandgap, easy synthesis method, low cost, visible light response properties. This review elaborates research progress g‐C ‐based photocatalysts for photocatalytic reduction. The modification strategies (e.g., morphology engineering, elemental doping, crystallinity modulation, cocatalyst modification, constructing heterojunction) application have been discussed detail. Finally, challenges development prospects materials are presented.

Language: Английский

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COFs‐Based Metal‐Free Heterojunctions for Solar‐to‐Chemical Energy Conversion

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(49)

Published: Aug. 17, 2024

Abstract Covalent organic frameworks (COFs) are a promising class of polymers with the merits robust framework, ultrahigh porosity, and molecularly precise backbones, which reveals great potential for solar‐to‐chemical energy conversion in context mitigating environmental crises. However, photochemical activities individual COFs not as desired, primarily due to their limited light absorption, insufficient dissociation photogenerated excitons readily recombined carriers. Recently, COFs‐based metal‐free heterojunctions synergistic effects provide feasible route boost photocatalytic activity more environmentally friendly cost‐competitive manners. Herein, it is first systematically overview advances from heterojunction types, heterointerfaces interactions, primary design mechanisms. Then, typical photocatalysts (e.g., g‐C 3 N 4 ‐COFs, carbon materials‐COFs, polymer semiconductor‐COFs, COFs‐COFs heterojunction) summarized. Finally, challenges long‐term outlooks future offered terms efficiency, yield, stability, cost reaction mechanisms, well standardized evaluation method activities. It anticipated that this review can deliver new insights into fundamental engineering conversion, further accelerate development area.

Language: Английский

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Enhancing the Performance of ZnO-Based Photodetectors by Forming ZnO/(Cu:ZnO) Core/Shell Nanorods

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: 6(3), P. 1894 - 1903

Published: Feb. 26, 2024

ZnO nanomaterials are some of the most excellent candidates for low-cost but high-performance photodetectors, particularly in UV region. Besides doping, architecting to extend their application is still attractive developing optoelectronic devices. Thereby, this study introduces innovation nanorod-based photodetectors by combining two techniques, which Cu doping and core/shell structuring. Particularly, active material (ZnO/(Cu-doped ZnO) nanorods) was synthesized a easy fabrication process. Our device using developed nanorods exhibits maximum responsivity ca. 4.5 mA W–1 at 395 nm light exposure, nearly 180% higher than that based on Cu-doped NRs (formed with only Cu-doping technique). This enhancement attributed improved charge transport interface ZnO/(Cu-doped NRs, pertains process reduces electron–hole recombination probability, resulting an improvement efficiency photodetectors. These outcomes reveal essential role core–shell structuring improving ZnO-based In general, our opens potential approach better

Language: Английский

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Facile construction of ZnWO4/g-C3N4 heterojunction for the improved photocatalytic degradation of MB, RhB and mixed dyes

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 53, P. 105039 - 105039

Published: Sept. 1, 2024

Language: Английский

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Experimental and Theoretical Research on Photocatalytic Nitrogen Reduction Using MoS₂ Nanosheets with Polysulfide Vacancies

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(23), P. 10871 - 10880

Published: May 28, 2024

MoS2 nanosheets with different concentrations of S vacancies (VS-MoS2) were synthesized and used for photocatalytic nitrogen reduction reactions (pNRR), the mechanism enhancing activity was explored through DFT calculation. The material characterization confirmed successful construction at on spherical cluster structure MoS2. experimental results show that introduction significantly improves pNRR, it increases increase vacancy number, consistent trend photoelectric performance. VS-MoS2-3 exhibits highest pNRR efficiency, which is 3.5 times higher than pristine MoS2, after being reused three times, only decreased by about 11%. calculation indicate exposed Mo atoms generated alter charge layout surface while providing abundant active sites. Meanwhile, band gap will narrow vacancies, beneficial transfer charges. In addition, one hand, strengthens adsorption N2, weakens H, selectivity nitrogen, conducive to progress NRR. On other more electrons can be transferred from adsorbed N2 molecules, hybridization between them better activating N2.

Language: Английский

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Carbon based nanocomposites, surface functionalization as a promising material for VOCs (volatile organic compounds) treatment

Chemosphere, Journal Year: 2024, Volume and Issue: 364, P. 143014 - 143014

Published: Aug. 8, 2024

Language: Английский

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