Principles of Photocatalysts and Their Different Applications: A Review

Topics in Current Chemistry, Journal Year: 2023, Volume and Issue: 381(6)

Published: Oct. 31, 2023

Abstract Human existence and societal growth are both dependent on the availability of clean fresh water. Photocatalysis is a type artificial photosynthesis that uses environmentally friendly, long-lasting materials to address energy environmental issues. There currently considerable demand for low-cost, high-performance wastewater treatment equipment. By changing structure, size, characteristics nanomaterials, use nanotechnology in field water filtration has evolved dramatically. Semiconductor-assisted photocatalysis recently advanced become among most promising techniques fields sustainable generation ecological cleanup. It beneficial, cost-effective, strictly linked zero waste discharge principle used industrial effluent treatment. Owing reduction or removal created unwanted byproducts, green synthesis photoactive nanomaterial more beneficial than chemical approaches. Furthermore, unlike methods, method does not require expensive, dangerous, poisonous ingredients, making it less costly, easy, photocatalyst synthesis. This work focuses distinct greener utilized production new photocatalysts, including metals, metal doped-metal oxides, plasmonic nanostructures, application intelligence machine learning design selection an innovative context challenges. A brief overview applications photocatalysts also presented. Finally, recommendations future research given create photocatalytic systems with greatly improved stability efficiency.

Language: Английский

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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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A review: Hydrochar as potential adsorbents for wastewater treatment and CO2 adsorption

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 914, P. 169823 - 169823

Published: Jan. 8, 2024

Language: Английский

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Efficient removal of direct dyes and heavy metal ion by sodium alginate-based hydrogel microspheres: Equilibrium isotherms, kinetics and regeneration performance study

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 139294 - 139294

Published: Jan. 1, 2025

Language: Английский

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Polydopamine modified coconut shell biochar decorated with ZIF-8 for improved adsorption of malachite green and rhodamine B from aqueous solution

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 120933 - 120933

Published: Jan. 1, 2025

Language: Английский

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Surface Treatment of Biochar—Methods, Surface Analysis and Potential Applications: A Comprehensive Review

Surfaces, Journal Year: 2023, Volume and Issue: 6(2), P. 179 - 213

Published: June 2, 2023

In recent years, biochar has emerged as a remarkable biosourced material for addressing global environmental, agricultural, biomedical, and energy challenges. However, the performances of rest in part on finely tuning its surface chemical properties, intended to obtain specific functionalities. this review, we tackle treatment with silane other coupling agents such diazonium salts, titanates, ionic/non-ionic surfactants, well nitrogen-containing (macro)molecules. We summarize progress achieved mostly last five years correlate nature extent functionalization eye-catchy end applications surface-engineered biochar.

Language: Английский

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pH-Sensitive adsorption of gastrointestinal drugs (famotidine and pantoprazole) as pharmaceutical pollutants by using the Au-doped@ZIF-90-glycerol adsorbent: insights from computational modeling

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(47), P. 26127 - 26151

Published: Jan. 1, 2023

Gastrointestinal drug pollutants pose environmental risks. Our study explores the adsorption of famotidine (FA) and pantoprazole (PA) using Au-ddoped@ZIF-90-gglycerol adsorbent (A@Z/G), emphasizing pH-sensitive effects on ecosystems.

Language: Английский

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Hydrothermally produced activated carbon spheres from discarded maize cobs for efficient removal of rose bengal dye from water environment

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 317, P. 100123 - 100123

Published: Jan. 1, 2024

This work used the subcritical water medium to create hydrothermally activated carbon spheres (HACs) from discarded maize cobs. As a form of adsorbent, cob-produced HACs were remove Rose Bengal dye aqueous solutions. Brunauer-Emmett-Teller (BET) surface area analysis, X-Ray diffraction (XRD), scanning electron microscopy (SEM), elemental analysis (EDX) and FTIR spectroscopy for analyzing produced HACs. Assessing influencing variables allowed optimization process adsorption. The highest removal happened at 60 min, sorbent dosage 1 g/L, initial concentration 100 mg/L pH 3 as consequence procedure. adsorption isotherms studied using Temkin, Freundlich Langmuir models. For sorption dye, Freundlich's model is best equilibrium data. shown by pseudo first order, according kinetic investigations. Thermodynamic analyses demonstrated that was an exothermic spontaneous process. evaluation regeneration spent conducted determine their reuse ability. results indicate regenerated have four-cycle lifespan.

Language: Английский

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Co-Hydrothermal Carbonization of Sawdust and Sewage Sludge: Assessing the Potential of the Hydrochar as an Adsorbent and the Ecotoxicity of the Process Water

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(3), P. 1052 - 1052

Published: Jan. 21, 2025

Hydrothermal carbonization (HTC) is a promising thermochemical process to convert residues into hydrochar. While conventional HTC utilizes one type of residue as raw material only, Co-HTC generally combines two. By mixing dry and wet wastes, can advantageously avoid water addition. Therefore, this work investigated the potential hydrochar derived from sawdust non-dewatered sewage sludge dye (methylene blue) adsorbent evaluated toxicity resulting (PW) on Daphnia magna. Three hydrochars were produced by at 180, 215, 250 °C named H-180, H-215, H-250, respectively. For methylene blue adsorption, H-180 H-215 had better performance than H-250. Both presented maximum adsorption capacity approximately 70 mg·g−1, which was superior compared with other in literature. Moreover, removal percentage obtained remained satisfactory even after five cycles. Regarding toxicological assays PWs, raising temperature increased variety substances PW composition, higher D. The EC50 values PW-180, PW-215, PW-250 1.13%, 0.97%, 0.51%, This highlights importance searching for treatment valorization PW. Instead viewing by-product an effluent be treated disposed of, it imperative assess PWs obtaining added-value products.

Language: Английский

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Adsorption characteristics of single and binary mixture of methylen blue and rhodamine b of novel hydrochar derived from lemongrass essential oil distillation residue

Journal of Molecular Liquids, Journal Year: 2025, Volume and Issue: unknown, P. 127205 - 127205

Published: Feb. 1, 2025

Language: Английский

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