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

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State-of-the-art review on photocatalysis for efficient wastewater treatment: Attractive approach in photocatalyst design and parameters affecting the photocatalytic degradation

Catalysis Communications, Journal Year: 2023, Volume and Issue: 183, P. 106764 - 106764

Published: Sept. 15, 2023

This review focuses on recently proposed photocatalyst designs for maximizing the efficiency of photogenerated charge carriers to improve photocatalytic performance photocatalysts. These include doping with metal and non-metal ions, surface grafting, noble deposition, dye sensitization, heterostructure fabrication. In addition, this thoroughly examines all prominent parameters that can influence degradation Furthermore, summarizes energy-band structures photocatalysts are suitable both O2 reduction oxidation H2O molecules generate reactive oxygen species. Lastly, we discuss future trends in development environmental applications.

Language: Английский

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Review of composite materials and applications

Materials Today Proceedings, Journal Year: 2023, Volume and Issue: unknown

Published: Oct. 1, 2023

Language: Английский

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Advanced photocatalysis as a viable and sustainable wastewater treatment process: A comprehensive review

Environmental Research, Journal Year: 2024, Volume and Issue: 253, P. 118947 - 118947

Published: May 12, 2024

Language: Английский

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g-C3N4 Based Photocatalyst for the Efficient Photodegradation of Toxic Methyl Orange Dye: Recent Modifications and Future Perspectives

Molecules, Journal Year: 2023, Volume and Issue: 28(7), P. 3199 - 3199

Published: April 4, 2023

Industrial effluents containing dyes are the dominant pollutants, making drinking water unfit. Among dyes, methylene orange (MO) dye is mutagenic, carcinogenic and toxic to aquatic organisms. Therefore, its removal from bodies through effective economical approach gaining increased attention in last decades. Photocatalytic degradation has ability convert economically complex molecules into non-toxic smaller species via redox reactions, by using photocatalysts. g-C3N4 a metal-free n-type semiconductor, typical nonmetallic non-toxici polymeric photocatalyst. It widely used photocatalytic materials, due easy simple synthesis, fascinating electronic band structure, high stability abundant availability. As photocatalyst, major drawbacks limited efficiency separating photo-excited electron–hole pairs, separated charge recombination, low specific surface area, absorption coefficient. In this review, we report recent modification strategies adopted for efficient photodegradation of MO dye. The different approaches, such as nanocomposites heterojunctions, well doping defect introductions, briefly discussed. mechanism future perspectives This review paper will predict fabrication an g-C3N4-based photocatalyst

Language: Английский

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A systematic review on new advancement and assessment of emerging polymeric cryogels for environmental sustainability and energy production

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 316, P. 123678 - 123678

Published: March 24, 2023

Language: Английский

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A pragmatic review on photocatalytic degradation of methyl orange dye pollutant using greenly biofunctionalized nanometallic materials: A focus on aquatic body

Applied Organometallic Chemistry, Journal Year: 2023, Volume and Issue: 37(7)

Published: April 20, 2023

Water is the source of life. But unfortunately, 80% wastewater discharged into aquatic body untreated globally, which industry responsible for 70% such water abstraction through discharge pollutants like methyl orange. According to WWAP, pollution kills 100 million individuals, 2 marine animals, and seabirds yearly, by 2025, it forecasted that ~1000 inhabitants in arid zones will experience severe crisis, thus, security has become focal outcry due daily environmental escalation caused rapid growth industries population. Recently, biosynthesized nanoparticles as photocatalysts have answered call sustainable treatment orange dye effluent photodegradation because their efficient photoactivity, inexpensiveness, eco‐benignness. In this review, photocatalytic‐degradation mechanism pathways environment presence • OH − O using green were mechanistically discussed. The highest degradation efficiency was found be 100%, final mineralization products H CO , least time taken min with silver being most commonly used degrader plant extracts employed bioreductant biosynthesis nanoparticles.

Language: Английский

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Comprehensive assessment of carbon-, biomaterial- and inorganic-based adsorbents for the removal of the most hazardous heavy metal ions from wastewater

RSC Advances, Journal Year: 2024, Volume and Issue: 14(16), P. 11284 - 11310

Published: Jan. 1, 2024

This article is about recoverable adsorbents for the removal of metal-based water contaminants. It presents role homogeneity and heterogeneity adsorbents, kinetics adsorption, mechanism sorption process.

Language: Английский

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Enhanced dye sequestration with natural polysaccharides-based hydrogels: A review

Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 330, P. 121820 - 121820

Published: Jan. 16, 2024

Language: Английский

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Biogenic synthesis of Co3O4 nanoparticles from Aloe barbadensis extract: Antioxidant and antimicrobial activities, and photocatalytic degradation of azo dyes

Results in Engineering, Journal Year: 2024, Volume and Issue: 22, P. 102094 - 102094

Published: April 2, 2024

The synthesis of Co3O4 nanoparticles (NPs) through biogenic means offers a cost-effective, environmentally friendly, stable, versatile, and biocompatible approach. In this work, we employed Aloe barbadensis Miller leaf extract for the biosynthesis NPs, leveraging its rich composition phenolic groups, polysaccharides, enzymes, minerals, vitamins, various acids. characterization synthesized NPs was performed using XRD, TEM, EDS, FT-IR, TGA-DSC, Raman, XPS, particle size analysis techniques. Our investigation focuses on evaluating antioxidant antimicrobial properties NPs. Antioxidant activity assessed DPPH, ABTS, FRAP, FICA assays, demonstrating NPs' ability to scavenge free radicals, reduce ferric ions, chelate ferrous ions. Antimicrobial testing revealed effectiveness against Proteus mirabilis Staphylococcus aureus. Furthermore, were utilized as photocatalysts degradation azo dyes (RhB, MB, CV). Under sunlight exposure 105 min, degraded CV by 97.53%. study also highlighted remarkable efficiency dye across five cycles reuse NP reuse.

Language: Английский

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