Efficient photocatalytic activity of chitosan/tin oxide nanocomposite for environmental remediation

Review Engineering, Environmental

Recent intensification strategies of SnO2-based photocatalysts: A review

Chaoyang Sun et al.

Summary: This review discusses the latest developments and achievements in SnO2-based photocatalysts, as well as their applications in various fields. The prospects and challenges of these photocatalysts are also proposed.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Environmental Sciences

Photocatalytic effect of CuO nanoparticles flower-like 3D nanostructures under visible light irradiation with the degradation of methylene blue (MB) dye for environmental application

Amal George et al.

Summary: The research focused on preparing 3D transition metal doped copper oxide nanostructures via sonication method and studying the effect of different transition metal dopants on the properties of CuO nanoparticles. The morphological studies confirmed the formation of flower-like CuO 3D nanostructures for all doped samples, with successful doping indicated by slight shifts in XRD peaks. UV-vis absorption analysis showed varying bandgaps for CuO samples doped with nickel, zinc, and iron, while photocatalytic testing revealed enhanced degradation efficiency in Zn-doped samples. This suggests that morphology and optical properties of CuO can be modified by doping transition metals.

ENVIRONMENTAL RESEARCH (2022)

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Article Chemistry, Inorganic & Nuclear

Mesoporous polyaniline/SnO2 nanospheres for enhanced photocatalytic degradation of bio-staining fluorescent dye from an aqueous environment

Mostafa A. Sayed et al.

Summary: In this study, mesoporous polyaniline/SnO2 nanoparticles were prepared using a cost-effective sol-gel method with chitosan as a structure directing agent. The incorporation of polyaniline on the surface of SnO2 enhanced the photocatalytic response and increased the surface area and the number of active sites. The PANI/SnO2 nanocomposite showed higher photocatalytic reactivity in the degradation of RhB dye under the same reaction conditions. It also enhanced the photocatalytic response in the visible region and reduced the recombination of electron-hole pairs.

INORGANIC CHEMISTRY COMMUNICATIONS (2022)

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Article Chemistry, Physical

Synthesis of chitosan/SnO2 nanocomposites by chemical precipitation for enhanced visible light photocatalytic degradation efficiency of congo red and rhodamine-B dye molecules

Muthuchamy Maruthupandy et al.

Summary: Tin oxide nanoparticles and tin oxide/chitosan nanocomposites were successfully synthesized using a simple chemical precipitation technique. Their photocatalytic degradation ability against congo red and Rhodamine-B was evaluated. The nanocomposites showed higher degradation rates than the nanoparticles, indicating their potential in environmental remediation.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY (2022)

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Article Nanoscience & Nanotechnology

Highly sensitive and selective 2-nitroaniline chemical sensor based on Ce-doped SnO2 nanosheets/Nafion-modified glassy carbon electrode

Ahmad Umar et al.

Summary: In this study, pure SnO2 and Ce-doped SnO2 nanosheets were successfully synthesized using a simple hydrothermal method, and characterized using various techniques. Electrochemical tests showed that the 3% Ce-doped SnO2 nanosheets exhibited high sensitivity and a wide linear range for detecting 2-nitroaniline, with good selectivity. This newly developed sensor electrode demonstrated excellent performance in the detection of 2-nitroaniline in the presence of common interfering species.

ADVANCED COMPOSITES AND HYBRID MATERIALS (2021)

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Article Chemistry, Physical

Investigation on photocatalytic degradation of crystal violet dye using bismuth ferrite nanoparticles

Shahnaz Kossar et al.

Summary: The successful synthesis of Gadolinium-doped bismuth ferrite nanoparticles resulted in a rhombohedral structure, while optical analysis indicated a reduction in band gap value due to Gd doping. The magnetic analysis confirmed weak ferromagnetic properties in the prepared samples, with saturation magnetization increasing with Gd concentration.

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY (2021)

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Article Chemistry, Physical

On the wrong assignment of the XPS O1s signal at 531-532 eV attributed to oxygen vacancies in photo- and electro-catalysts for water splitting and other materials applications

Hicham Idriss

Summary: The XPS O1s signal mistakenly attributed to oxygen vacancies is actually due to the adsorption of water molecules on the oxide surface under ambient conditions. Surface oxygen vacancies in binary or mixed metal oxide materials or catalysts will be oxidized instantly due to the strong adsorption energy of water, making it impossible for ex-situ measurements.

SURFACE SCIENCE (2021)

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Review Polymer Science

Chitosan: An Overview of Its Properties and Applications

Inmaculada Aranaz et al.

Summary: Chitosan, a polymer with diverse properties and potential applications, is facing challenges such as poor solubility, complex molecular structure, and varied biological properties. Researchers are exploring the chemistry of chitosan to improve its solubility and enhance its properties, focusing on its biological and technological performance. Additionally, applications of chitosan in green processes, such as the synthesis of metallic nanoparticles and support for biocatalysts, are being investigated for their potential in drug delivery systems.

POLYMERS (2021)

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Article Optics

Green chemical approach for the synthesis of SnO2 nanoparticles and its application in photocatalytic degradation of Eriochrome Black T dye

Morvarid Najjar et al.

Summary: In this study, SnO2 nanoparticles were synthesized using chitosan as an assistant, characterized through various analytical techniques, and showed promising photocatalytic activity for the degradation of Eriochrome Black T dye.

OPTIK (2021)

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Article Chemistry, Physical

Experimental and DFT insights into the visible-light driving metal-free C3N5 activated persulfate system for efficient water purification

Junlei Zhang et al.

Summary: In this study, metal-free C3N5 was synthesized and used as an activator for PMS activation, exhibiting excellent degradation performance for EMs and water disinfection under visible light. This research provides a new environmentally-friendly option for efficient water purification through advanced oxidation processes.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

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Article Chemistry, Physical

Multiple-Function Surface Engineering of SnO2 Nanoparticles to Achieve Efficient Perovskite Solar Cells

Hui Wang et al.

Summary: By surface engineering of SnO2 nanoparticles, the use of TBA(+) and I- ions improves dispersion, suppresses charge recombination, and reduces energy loss, thus increasing the efficiency of perovskite solar cells by addressing the mismatched energy levels and interface defects.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2021)

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Article Materials Science, Multidisciplinary

Fabrication of novel polyaniline/ZnO heterojunction for exceptional photocatalytic hydrogen production and degradation of fluorescein dye through direct Z-scheme mechanism

Mohamed S. Hamdy et al.

Summary: Direct Z-scheme heterojunctions have shown exceptional reactivity in recent years in various photocatalytic processes. A hybrid polyaniline/ZnO heterojunction was synthesized for removal of fluorescein dye and production of hydrogen gas under visible light source. The key factor in optimizing hydrogen gas production and photocatalytic degradation is the amount of polyaniline. The results suggest that polyaniline enhances light absorption and provides additional electrons for the production of H2 gas.

OPTICAL MATERIALS (2021)

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Article Materials Science, Ceramics

Indium-free large area Nb-doped SnO2 thin film as an alternative transparent conducting electrode

R. Ramarajan et al.

CERAMICS INTERNATIONAL (2020)

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Article Biochemistry & Molecular Biology

Enhanced photocatalysis and anticancer activity of green hydrothermal synthesized Ag@TiO2 nanoparticles

D. Hariharan et al.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY (2020)

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Article Optics

Evaluation of the photocatalytic efficiency of cobalt oxide nanoparticles towards the degradation of crystal violet and methylene violet dyes

R. Sukhin Saravan et al.

OPTIK (2020)

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Review Green & Sustainable Science & Technology

Mitigation of pollutants by chitosan/metallic oxide photocatalyst: A review

Mohd Azam Mohd Adnan et al.

JOURNAL OF CLEANER PRODUCTION (2020)

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Article Nanoscience & Nanotechnology

Proficient Photocatalytic and Sonocatalytic Degradation of Organic Pollutants Using CuO Nanoparticles

Moondeep Chauhan et al.

JOURNAL OF NANOMATERIALS (2020)

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Article Biochemistry & Molecular Biology

Chitosan modified zirconium/zinc oxide as a visible light driven photocatalyst for the efficient reduction of hexavalent chromium

Jayaram Preethi et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2020)

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Article Engineering, Electrical & Electronic

Rapid photocatalytic degradation of RhB dye and photocatalytic hydrogen production on novel curcumin/SnO2nanocomposites through direct Z-scheme mechanism

M. A. Ahmed et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2020)

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Article Engineering, Chemical

Fabrication of effective visible-light-driven ternary Z-scheme ZnO-Ag-BiVO4 heterostructured photocatalyst for hexavalent chromium reduction

A. Raja et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2020)

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Article Engineering, Environmental

Effective Fabrication and Characterization of Eco-friendly Nano Chitosan Capped Zinc Oxide Nanoparticles for Effective Marine Fouling Inhibition

Hend Al-aidy El-saied et al.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2020)

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Article Multidisciplinary Sciences

Photocatalytic degradation of methylene blue dye in aqueous solution by MnTiO3 nanoparticles under sunlight irradiation

Suhila Alkaykh et al.

HELIYON (2020)

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Article Biochemistry & Molecular Biology

Preparation of chitosan coated zinc oxide nanocomposite for enhanced antibacterial and photocatalytic activity: As a bionanocomposite

Devaraj Bharathi et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2019)

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Article Engineering, Electrical & Electronic

Green hydrothermal synthesis of gold and palladium doped titanium dioxide nanoparticles for multifunctional performance

D. Hariharan et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2019)

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Article Materials Science, Multidisciplinary

The influence of titanium dioxide nanofiller ratio on morphology and surface properties of TiO2/chitosan nanocomposite

Saja S. Al-Taweel et al.

RESULTS IN PHYSICS (2019)

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Article Biochemistry & Molecular Biology

Green approach synthesis of Pd@TiO2 nanoparticles: characterization, visible light active picric acid degradation and anticancer activity

D. Hariharan et al.

PROCESS BIOCHEMISTRY (2019)

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Article Biochemistry & Molecular Biology

Synthesis of novel Sn1-xZnxO-chitosannanocomposites: Structural, morphological and luminescence properties and investigation of antibacterial properties

Rajiv Gandhi Packirisamy et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2019)

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Article Chemistry, Physical

Green synthesis of SnO2 nanoparticle using Lycopersicon esculentum peel extract

H. E. Garrafa-Galvez et al.

JOURNAL OF MOLECULAR STRUCTURE (2019)

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Article Chemistry, Physical

Role of Cu in engineering the optical properties of SnO2 nanostructures: Structural, morphological and spectroscopic studies

Virender Kumar et al.

APPLIED SURFACE SCIENCE (2018)

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Article Chemistry, Physical

Ionic liquid-SnO2 nanoparticle hybrid electrolytes for secondary charge storage devices: Physicochemical and electrochemical studies

Bula Dutta et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2018)

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Article Materials Science, Multidisciplinary

Visible light active photocatalyst: Hydrothermal green synthesized TiO2 NPs for degradation of picric acid

D. Hariharan et al.

MATERIALS LETTERS (2018)

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Article Engineering, Chemical

Suppression of the photocatalytic activity of TiO2 nanoparticles encapsulated by chitosan through a spray-drying method with potential for use in sunblocking applications

Alexander Morlando et al.

POWDER TECHNOLOGY (2018)

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Review Engineering, Environmental

Efficiency of various recent wastewater dye removal methods: A review

Vanitha Katheresan et al.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2018)

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Article Engineering, Electrical & Electronic

Hybrid structure of biotemplate-zinc-tin oxide for better optical, morphological and photocatalytic properties

M. Karpuraranjith et al.

SEMICONDUCTOR SCIENCE AND TECHNOLOGY (2017)

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Article Nanoscience & Nanotechnology

Preparation of magnetic composite based on zinc oxide nanoparticles and chitosan as a photocatalyst for removal of reactive blue 198

Van Cuong Nguyen et al.

ADVANCES IN NATURAL SCIENCES-NANOSCIENCE AND NANOTECHNOLOGY (2015)

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Article Biophysics

Synthesis of porous chitosan-polyaniline/ZnO hybrid composite and application for removal of reactive orange 16 dye

Kannusamy Pandiselvi et al.

COLLOIDS AND SURFACES B-BIOINTERFACES (2013)

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Article Chemistry, Physical

Effect of annealing temperature on optical and electrochemical properties of chitosan-ZnO nanostructure

S. Anandhavelu et al.

IONICS (2013)

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Efficient photocatalytic activity of chitosan/tin oxide nanocomposite for environmental remediation

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