Designing oxygen vacancy mediated bismuth molybdate (Bi2MoO6)/N-rich carbon nitride (C3N5) S-scheme heterojunctions for boosted photocatalytic removal of tetracycline antibiotic and Cr(VI): Intermediate toxicity and mechanism insight

Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 624, P. 219 - 232

Published: May 29, 2022

Language: Английский

---

Functional Carbon Nitride Materials in Photo‐Fenton‐Like Catalysis for Environmental Remediation

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(24)

Published: May 12, 2022

Abstract Among various advanced oxidation processes, coupled photocatalysis and heterogeneous Fenton‐like catalysis (known as photo‐Fenton‐like catalysis) to generate highly reactive species for environmental remediation has attracted wide interests. As an emerging metal‐free photocatalyst, graphitic carbon nitride (g‐C 3 N 4 , CN) been recently recognized a promising candidate catalyze robustly reactions wastewater remediation. This review summarizes recent progress in fabricating types of CN‐based catalysts the reaction process. Innovative engineering strategies on CN matrix are outlined, ranging from morphology control, defect engineering, nonmetal atom doping, organic molecule doping modification by metal‐containing species. The catalytic activities loaded with auxiliary sub‐nanoscale (e.g., quantum dots, organometallic molecules, metal cations, single metals) nanoscale metal‐based materials critically evaluated. Hybridization bandgap‐matching semiconductors construction type‐II Z‐scheme heterojunctions also examined. critical factors morphology, dimensionality, light absorption, charge excitation/migration, sites, H 2 O generation activation) that determine performance photocatalysts systematically discussed. After examining structure–activity relationship, research perspectives proposed further development toward more efficient their application practical water treatment.

Language: Английский

---

Recent Progress on Semiconductor Heterogeneous Photocatalysts in Clean Energy Production and Environmental Remediation

Catalysts, Journal Year: 2023, Volume and Issue: 13(7), P. 1102 - 1102

Published: July 14, 2023

Semiconductor-based photocatalytic reactions are a practical class of advanced oxidation processes (AOPs) to address energy scarcity and environmental pollution. By utilizing solar as clean, abundant, renewable source, this process offers numerous advantages, including high efficiency, eco-friendliness, low cost. In review, we present several methods construct various photocatalyst systems with excellent visible light absorption efficient charge carrier separation ability through the optimization materials design reaction conditions. Then it introduces fundamentals photocatalysis in both clean generation remediation. other parts, introduce approaches enhance activity by applying different strategies, semiconductor structure modification (e.g., morphology regulation, co-catalysts decoration, doping, defect engineering, surface sensitization, heterojunction construction) tuning optimizing conditions (such concentration, initial contaminant pH, temperature, intensity, charge-carrier scavengers). Then, comparative study on performance recently examined photocatalysts applied production remediation will be discussed. To realize these goals, H2 via water splitting, CO2 reduction value-added products, dye, drug photodegradation lessen toxic chemicals, presented. Subsequently, report dual-functional for simultaneous pollutant reactions. brief discussion about industrial economical applications is described. The follows introducing application artificial intelligence machine learning selection an innovative issues. Finally, summary future research directions toward developing significantly improved efficiency stability provided.

Language: Английский

---

Z-scheme WOx/Cu-g-C3N4 heterojunction nanoarchitectonics with promoted charge separation and transfer towards efficient full solar-spectrum photocatalysis

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 636, P. 646 - 656

Published: Jan. 13, 2023

Construction of Z-scheme heterojunctions has been considered one superb method in promoting solar-assisted charge carrier separation carbon-based materials to achieve efficient utilization solar energy hydrogen production and CO2 reduction. One interesting concept nanofabrication that become trend recent years is nanoarchitectonics. A heterostructure photocatalyst constructed based on the idea nanoarchitectonics using combination g-C3N4, metal an additional semiconducting nanocomposite investigated this paper. tungsten oxide incorporated copper modified graphitic carbon nitride (WOx/Cu-g-C3N4) heterostructures are fabricated via immobilization WOx Cu nanoparticles superior thin g-C3N4 nanosheets. Mechano-chemical pre-reaction a two-step high-temperature thermal polymerization process keys attaining homogeneous distribution The horizontal growth homogeneously distributed nanobelts (Cu-g-C3N4) base solvothermal synthesis achieved. photocatalytic performances evaluated through water splitting photoreduction measurements full spectrum irradiation condition. presence composite system improves transport between thus enhances (H2 generation photoreduction) material, while nanocomposites light absorption material near infrared range. synthesized with optimized Cu-g-C3N4 ratio case no co-catalyst addition exhibits enhanced H2 evolution (4560 μmolg-1h-1) as well excellent reduction rate (5.89 μmolg-1h-1 for CO generation).

Language: Английский

---

Construction of carbon nanotubes bridged MoS2/ZnO Z-scheme nanohybrid towards enhanced visible light driven photocatalytic water disinfection and antibacterial activity

Carbon, Journal Year: 2022, Volume and Issue: 196, P. 877 - 889

Published: May 28, 2022

Language: Английский

---

Graphitic carbon nitride (g-C3N4) synthesis and heterostructures, principles, mechanisms, and recent advances: A critical review

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 48(84), P. 32708 - 32728

Published: May 21, 2023

Language: Английский

---

Potential of Bi2WO6-based heterojunction photocatalysts for environmental remediation

Materials Today Chemistry, Journal Year: 2023, Volume and Issue: 32, P. 101633 - 101633

Published: July 9, 2023

Language: Английский

---

Charge transfer in TiO₂-based photocatalysis: fundamental mechanisms to material strategies

Nanoscale, Journal Year: 2024, Volume and Issue: 16(9), P. 4352 - 4377

Published: Jan. 1, 2024

The review highlights charge transfer, improved photocatalytic performance, and possible photocatalysis schemes in TiO 2 -based composites. It also addresses perspectives challenges transfer mechanisms for photocatalysis.

Language: Английский

---

Visible light-driven C–H arylation of heteroarenes with aryl diazonium salts in water catalyzed by a Z-scheme CuInS₂/K-C₃N₄ heterojunction

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(8), P. 4803 - 4810

Published: Jan. 1, 2024

Z-scheme CuInS 2 /K-C 3 N 4 heterojunction has been designed and confirmed as efficient heterogeneous photocatalyst for arylation of heteroarenes with aryl diazonium salts in water under visible light irradiation to give arylated high yields.

Language: Английский

---

Tandem microplastic degradation and hydrogen production by hierarchical carbon nitride-supported single-atom iron catalysts

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 10, 2024

Abstract Microplastic pollution, an emerging environmental issue, poses significant threats to aquatic ecosystems and human health. In tackling microplastic pollution advancing green hydrogen production, this study reveals a tandem catalytic degradation-hydrogen evolution reaction (MPD-HER) process using hierarchical porous carbon nitride-supported single-atom iron catalysts (FeSA-hCN). Through hydrothermal-assisted Fenton-like reactions, we accomplish near-total ultrahigh-molecular-weight-polyethylene degradation into C 3 -C 20 organics with 64% selectivity of carboxylic acid under neutral pH, leap beyond current capabilities in efficiency, selectivity, eco-friendliness, stability over six cycles. The system demonstrates versatility by degrading various daily-use plastics across different settings. mixture FeSA-hCN plastic products further achieves 42 μmol h ‒1 illumination, outperforming most existing photoreforming methods. This MPD-HER not only provides scalable economically feasible strategy combat but also contributes the economy, far-reaching implications for global sustainability initiatives.

Language: Английский

---