Recent Advances in Functionalization of Graphene Oxide and Its Role in Catalytic Organic Transformations: A Comprehensive Review (2018–2024)

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(5)

Published: Feb. 1, 2025

Abstract Heterogeneous catalysis has become a key methodology for the sustainable synthesis of organic reactions and heterocyclic compounds. Among various catalysts, graphene oxide (GO) its functionalized derivatives (fGO) stand out due to their high surface area, mechanical strength, tunable electronic properties. This review provides detailed overview role GO in catalysis, emphasizing structural features, functionalization strategies, catalytic applications. Specific such as oxidation, reduction, esterification, are discussed, with focus on superior performance (fGO). Challenges like stability aggregation explored, alongside potential solutions through chemical, thermal, electrochemical functionalization. The also examines future directions, highlighting (GO's) versatility emerging applications energy storage, sensors, biomedical devices. By summarizing current advancements addressing ongoing challenges, this underscores fGO revolutionize processes contribute chemistry.

Language: Английский

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Synergistic Hydrogen Peroxide‐Driven Cation Valence Regulation and La/O Co‐Doped SnS‐Based Oxysulfide Catalyst for Efficient Catalytic Reduction of Toxic Organics and Cr(VI) Under Dark

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: June 10, 2024

Abstract A novel La/O co‐doped SnS oxysulfide catalyst (labeled SnLaOS) with heterovalent tin states and sulfur vacancy defects is successfully synthesized for effective catalytic reduction of toxic organics heavy metal ions NaBH 4 in the dark. hydrogen peroxide‐driven SnLaOS suitable Sn 2+ /Sn 4+ exhibited excellent capability. The 100 mL 20 ppm 4‐nitrophenol (4‐NP) 50 rhodamine‐B (RhB), methylene blue (MB), methyl orange (MO), Cr(VI) solution are entirely reduced by 5 mg SnLaOS‐3 within 10, 12, 16, 14 min, respectively, durable stability. Synergistic transition La 3+ ‐cation O 2− ‐anion adjusted energy bandgap introduced defects, regulated ratio. vacancies provide active sites adsorbed proton pollutants reduction, facilitates electrons efficient transfer through electron hopping between reduction. This study provides a water treatment.

Language: Английский

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On the Rapid Synthesis of Reduced Graphene Oxide via Ultrasound‐Promoted Eco‐Friendly Reduction Approach and Its Effects on Physicochemical Properties

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

Published: July 1, 2024

The common synthesis approach of reduced graphene oxide (rGO) using toxic reducing agents poses a threat to environmental pollution. This study used banana peel extract as green agent for the rGO. Ultrasonication was assimilated expedite process. For comparison, rGO also produced by GO with hydrazine treatment under conventional stirring. Both morphological (SEM) and physicochemical (FTIR XRD) studies have revealed that can reduce rGO, although its effect is much weaker compared hydrazine. Despite this, assimilation ultrasonication technique has greater interlayer spacing than formed stirring method. In terms electrical properties, conductance hydrazine-produced (5.69×10

Language: Английский

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Graphene‐Based Catalysts: Emerging Applications and Potential Impact

The Chemical Record, Journal Year: 2024, Volume and Issue: 24(11)

Published: Oct. 21, 2024

Abstract Carbon nanofillers in general and graphene particular are considered as promising potential candidates catalysis due to their two‐dimensional (2D) nature, zero bandwidth, single atom thickness with a high surface area: volume ratio. Additionally, oxide via result of tunable electrical properties has also been developed catalytic support for metal nanofillers. Moreover, the possession higher chemical stability followed by ultrahigh thermal conductivity plays prominent role promoting reinforcement catalytically active sites. In this review we have started an overview carbon catalyst support, main characteristics applications use heterogeneous catalysis. The article critically focusses on originating from both functional groups well doping. An in‐depth literature various reaction catalysed based nanoparticles supported GO/rGO incorporated special focus overall efficiency respect contribution. future research prospective aforementioned field discussed.

Language: Английский

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Post‐Adsorption Properties and Thermodynamic Adsorption Parameters of Various Graphene Oxide‐Based Materials

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(26)

Published: July 4, 2024

Abstract Graphene oxide (GO) and its composites have been widely studied for environmental applications, including dye removal. In this study, various GO‐based materials namely GF, GFA, GFC were successfully synthesized characterized by FTIR, Raman spectroscopy, FESEM, BET, TGA methods before after being used to adsorb methylene blue from aqueous solutions. The BET results reveal that MB molecules most filled in the pores at size of 100–300 nm materials. adsorption process followed pseudo‐first‐order equation Sips isothermal model all However, GFA showed maximum capacity (Qmax = 739 mg/g) negative value ΔG while least effective material was GFC. experiment revealed GF could remove up 95.0 % color on real textile wastewater sample, are very promising removal application.

Language: Английский

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Comprehensive review of Carbon-based nanostructures: Properties, synthesis, characterization, and cross-disciplinary applications

Journal of Industrial and Engineering Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

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