4.2 Article

Cobalt oxide decked with inorganic-sulfur containing vanadium oxide for chromium(vi) reduction and UV-light-assisted methyl orange degradation

Related references

Note: Only part of the references are listed.
Article Chemistry, Physical

Elemental sulfur supported on ultrathin titanic acid nanosheets for photocatalytic reduction of CO2 to CH4

Suwei Lu et al.

Summary: By loading different weight contents of elemental sulfur on ultrathin titanic acid nanosheets, a sulfur/titanic acid hybrid structure was designed and synthesized. The hybrid structure exhibited enhanced photocatalytic CO2 reduction performance under simulated solar light illumination, with a CH4 yield rate of 1.92 μmol h-1 g-1.

APPLIED SURFACE SCIENCE (2023)

Review Environmental Sciences

A comprehensive review on MXenes as new nanomaterials for degradation of hazardous pollutants: Deployment as heterogeneous sonocatalysis

Yasser Vasseghian et al.

Summary: MXene-based nanomaterials (MBNs) have desirable properties for degrading hazardous pollutants. This study focuses on the sonocatalytic degradation of various pollutants using MXene-based catalysts, examining the principles of sonocatalysis and the application of MXene-based sonocatalysts.

CHEMOSPHERE (2022)

Article Engineering, Environmental

Decontamination of toxic Malathion pesticide in aqueous solutions by Fenton-based processes: Degradation pathway, toxicity assessment and health risk assessment

Yasser Vasseghian et al.

Summary: This study evaluated the degradation efficiency of Malathion using three processes (Fenton, photo-Fenton, sono-photo Fenton), with the sono-photo Fenton process proving to be the most effective. The toxicity of the byproducts from the degradation was assessed.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Environmental Sciences

Wastewater irrigation in India: Current status, impacts and response options

Paramjit S. Minhas et al.

Summary: Wastewater generated from urban agglomerations in India has the potential to be a valuable resource for agriculture, but issues with wastewater treatment have led to environmental pollution and health risks. Appropriate policy initiatives are needed to address these challenges.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Chemistry, Physical

Chirally modified cobalt-vanadate grafted on battery waste derived layered reduced graphene oxide for enantioselective photooxidation of 2-naphthol: Asymmetric induction through non-covalent interaction

Manash J. Baruah et al.

Summary: The study identified a cobalt oxide-vanadium oxide combined reduced graphene oxide as an efficient photocatalyst for selective oxidation reactions. The catalyst showed high efficiency in synthesizing C2-symmetric BINOL under UV-light irradiation. Through chiral modifiers and sigma-hole center, the catalyst exhibited good performance in high enantioselective oxidative CAC coupling reactions.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Materials Science, Multidisciplinary

Sulfur-doped g-C3N4/g-C3N4 isotype step-scheme heterojunction for photocatalytic H2 evolution

Jizhou Jiang et al.

Summary: This study successfully develops a new heterojunction structure composed of sulfur-doped and sulfur-free active sites, which demonstrates high efficiency and durability in photocatalytic hydrogen evolution. The research contributes to the exploration of other carbon-based isotype S-scheme heterojunctions.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2022)

Article Nanoscience & Nanotechnology

Hydrothermal Microwave Synthesis of Co3O4/In2O3 Nanostructures for Photoelectrocatalytic Reduction of Cr(VI)

JieJie Nan et al.

Summary: Co3O4/In2O3 nanocomposites prepared via a microwave-hydrothermal method showed high efficiency and stability in reducing Cr(VI) through photoelectrocatalysis, with photo-generated electrons playing a key role and the p-n heterojunction significantly affecting the PEC performance.

ACS APPLIED NANO MATERIALS (2022)

Article Engineering, Chemical

Acetate improves catalytic performance for rapid removal of Cr(VI) by sodium borohydride in aqueous environments

Ousmanou Njoya et al.

Summary: In this study, the role of acetate in the rapid chemical reduction of Cr(VI) using sodium borohydride (NaBH4) and subsequent total chromium removal was evaluated. The results showed that acetate promoted the conversion of Cr(VI) to Cr(III) and significantly improved the removal efficiency of Cr(VI).

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Chemistry, Physical

Tubular Nickel Hydroxide Embedded in Zeolitic Cobalt Oxide for Methanol Oxidation Reaction

Salma A. Khanam et al.

Summary: Non-noble metal-based electrocatalysts were designed for effective electrochemical oxidation of methanol in basic medium. The catalyst consisting of nickel and cobalt metals was synthesized and showed good activity and stability in the methanol oxidation reaction.

ACS APPLIED ENERGY MATERIALS (2022)

Article Nanoscience & Nanotechnology

S-Scheme In2O3 Nanoparticle/BiOBr Nanoplate Heterojunctions for Improved Photocatalytic Dye Degradation and Cr(VI) Reduction

Tao Xian et al.

Summary: In this study, S-scheme In2O3/BiOBr heterojunction photocatalysts were synthesized through a hydrothermal route. The results showed that the photocatalytic performance of BiOBr was significantly enhanced after the decoration of In2O3 nanoparticles. The 8% In2O3/BiOBr sample exhibited the best photocatalytic activity and demonstrated outstanding synergistic photocatalytic performance for the removal of heavy metal ion/dye mixtures.

ACS APPLIED NANO MATERIALS (2022)

Article Chemistry, Physical

Bifunctional NiCuOx photoelectrodes to promote pseudocapacitive charge storage by in situ photocharging

Ting Zhu et al.

Summary: Charging electrochemical devices by light irradiation can result in significant capacitance enhancements, thereby potentially revolutionizing energy-storage technologies.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

Article Engineering, Environmental

Toxic Chemicals and Persistent Organic Pollutants Associated with Micro-and Nanoplastics Pollution

Charles Obinwanne Okoye et al.

Summary: The prevalence of micro and nanoplastics in various environments and their negative impact on ecosystems are of global concern. These plastics have the ability to leach toxic chemicals and adsorb environmental pollutants, enhancing their bioavailability and toxicity. They can easily enter the food chain, posing health risks to humans and other organisms. Despite the complexity in understanding the mechanisms and impacts, knowledge on the major chemical additives and their fate once these plastics are disposed into the environment is lacking. This review critically analyzes the current knowledge on the physical, chemical, and biological impacts of micro and nanoplastics, as well as the associated pollutants. It emphasizes the types, occurrence, fate, and distribution of these plastics in the environment, and discusses techniques for identification, characterization and removal. The harmful effects of these plastics on human health are also discussed, highlighting the need for future research.

CHEMICAL ENGINEERING JOURNAL ADVANCES (2022)

Review Chemistry, Multidisciplinary

Recent progress in treatment of dyes wastewater using microbial-electro-Fenton technology

Shumaila Rafaqat et al.

Summary: This comprehensive review provides an in-depth analysis of cost-effective solutions for treating textile wastewater and harnessing renewable energy. The emerging Microbial-Electro-Fenton Technology (MEFT) shows potential in terms of treatment and energy efficiency, minimal toxicity, and environmental sustainability. The review also discusses the degradation mechanisms and efficiency of different dyes in the MEFT system, as well as the limitations for future large-scale applications.

RSC ADVANCES (2022)

Review Engineering, Environmental

Heterogeneous Photocatalytic Activation of Persulfate for the Removal of Organic Contaminants in Water: A Critical Review

Shaoxiong He et al.

Summary: This review comprehensively discusses the fundamental understanding and rational design of heterogeneous photocatalytic persulfate-based advanced oxidation processes (AOPs). The review addresses the challenges and improvement strategies of these processes, and provides an overview of different types of heterogeneous photocatalytic persulfate-based AOPs. The review concludes by discussing the engineering implications and prospects for developing efficient and environmentally friendly AOPs for water treatment.

ACS ES&T ENGINEERING (2022)

Article Chemistry, Multidisciplinary

Template free-synthesis of cobalt-iron chalcogenides [Co0.8Fe0.2L2, L = S, Se] and their robust bifunctional electrocatalysis for the water splitting reaction and Cr(vi) reduction

Manzoor Ahmad Pandit et al.

Summary: This paper reports the synthesis of novel cobalt-iron chalcogenides and verifies their enhanced electrocatalytic activities in oxygen evolution reaction and reduction of toxic heavy metal ions. The materials show outstanding durability and stability, making them promising catalysts for various applications.

RSC ADVANCES (2022)

Article Chemistry, Multidisciplinary

Anion Intercalation of VS4 Triggers Atomic Sulfur Transfer to Organic Disulfide in Rechargeable Lithium Battery

Zhiyu Wang et al.

Summary: The study found that intercalating TFSI- anions into VS4 can enhance sulfur evolution during charging, resulting in improved cycling reversibility and capacity retention in the composite electrode.

ADVANCED FUNCTIONAL MATERIALS (2021)

Article Chemistry, Physical

In situ grown monolayer N-Doped graphene and ZnO on ZnFe2O4 hollow spheres for efficient photocatalytic tetracycline degradation

Kangwang Wang et al.

Summary: In this study, hollow porous spheres of ZnFe2O4/ZnO were designed with a dual-template and self-dissolution method, on which nitrogen-doped graphene (NG) was grown in situ for efficient photocatalytic degradation of antibiotics. The unique structure of the prepared photocatalyst, including hollow interior, porous design, thin shell, tight adhesion, and monolayer NG surface, significantly enhances its visible-light activity compared to solid spheres and hollow spheres under visible-light irradiation.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

Article Chemistry, Multidisciplinary

Development of Three-Dimensional Nickel-Cobalt Oxide Nanoflowers for Superior Photocatalytic Degradation of Food Colorant Dyes: Catalyst Properties and Reaction Kinetic Study

Mohammed Nazim et al.

Summary: This study developed flower-like nickel-cobalt oxide nanosheets with excellent photocatalytic efficiency for the degradation of food colorant Allura Red AC dye in water, showing great potential for the removal of organic pollutants in the future.

LANGMUIR (2021)

Article Chemistry, Applied

Mixed valent copper oxide nanocatalyst on Zeolite-Y for mechanochemical oxidation, reduction and C-C bond formation reaction

Gautam Gogoi et al.

Summary: The copper oxide (CuO) nanocatalyst supported on zeolite-Y is an excellent solid phase catalyst for oxidation, reduction, and C-C bond formation reactions, producing derivatives of benzimidazoles and benzaldehydes selectively. This technique offers high yields and selectivity without the need for toxic acids or reducing agents, using isopropanol as an internal reducing agent for aldehyde reduction. The catalyst can selectively reduce compounds with multiple aldehydic groups, and the crystallite size of zeolite-Y plays a crucial role in achieving high selectivity in catalytic oxidation and reduction.

MICROPOROUS AND MESOPOROUS MATERIALS (2021)

Article Materials Science, Composites

Comparative study of multiwall carbon nanotube nanocomposites by Raman, SEM, and XPS measurement techniques

Yanmei Piao et al.

Summary: This study evaluated the effectiveness of XPS, Raman spectroscopy, and SEM methods on MWCNT-epoxy nanocomposite samples, finding a positive correlation between signal intensity and MWCNT mass loading. The results showed that these methods were capable of detecting MWCNTs at different concentrations and demonstrated good comparability among them.

COMPOSITES SCIENCE AND TECHNOLOGY (2021)

Article Nanoscience & Nanotechnology

Validating the Electronic Structure of Vanadium Phosphate Cathode Materials

Tristram Jenkins et al.

Summary: The investigation conducted on the electronic structure of vanadium phosphate cathode materials for alkali-ion rechargeable batteries using synchrotron soft X-ray absorption spectroscopy (XAS) revealed substantial variation in surface-to-bulk atomic structure, vanadium oxidation states, and density of oxygen hole states. This variation was attributed to an intrinsic alkali metal surface depletion identified across the samples, which provides a beneficial interface with the bulk structure(s) and improves surface charge transfer kinetics. The findings clarify the electronic structure and properties of alkali metal vanadium phosphates, offering guidance on future strategies to enhance vanadium phosphate battery performance.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Multidisciplinary

Efficient Cr(vi) photoreduction under natural solar irradiation using a novel step-scheme ZnS/SnIn4S8 nanoheterostructured photocatalysts

Metwally Madkour et al.

Summary: ZnS/SnIn4S8 nanoheterostructures were prepared and used as photocatalysts for the removal of heavy metal chromium (Cr(vi)) pollutants in water, showing high photocatalytic activity in the visible range. The photocatalysts exhibited enhanced charge carrier separation and operated via a step-scheme mechanism, with good recyclability for repeated use.

RSC ADVANCES (2021)

Article Chemistry, Physical

A low-valent cobalt oxide co-catalyst to boost photocatalytic water oxidation via enhanced hole-capturing ability

Shi Yang Xiao et al.

Summary: The study successfully synthesized ultrafine cobalt oxide co-catalysts with specific oxidation states, which significantly enhance photocatalytic water oxidation performance by optimizing charge separation and transportation. The TaON photocatalyst with CoOx co-catalysts exhibited outstanding O-2 production rate and high quantum efficiency.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Article Chemistry, Multidisciplinary

A visible light active, carbon-nitrogen-sulfur co-doped TiO2/g-C3N4 Z-scheme heterojunction as an effective photocatalyst to remove dye pollutants

Zhen Huang et al.

Summary: Constructing composite photocatalysts with heterojunction formation and heteroatom doping is a promising strategy to enhance visible light catalytic activity. The CNS-TiO2/g-C3N4 Z-scheme heterojunction photocatalyst showed excellent degradation performance under visible light due to enhanced utilization of photogenerated electrons-holes. The heteroatom doping efficiently tailored the band gap of TiO2 and facilitated electron transition, contributing to enhanced degradation ability under visible light.

RSC ADVANCES (2021)

Review Chemistry, Multidisciplinary

Metal-Organic Frameworks for the Removal of Emerging Organic Contaminants in Water

Sara Rojas et al.

CHEMICAL REVIEWS (2020)

Review Engineering, Environmental

Degradation of Anthraquinone Dyes from Effluents: A Review Focusing on Enzymatic Dye Degradation with Industrial Potential

Eleni Routoula et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

Article Thermodynamics

Molecularly Imprinted Polymers for Selective Recognition and Extraction of Heavy Metal Ions and Toxic Dyes

Gaurav Sharma et al.

JOURNAL OF CHEMICAL AND ENGINEERING DATA (2020)

Review Chemistry, Multidisciplinary

Application of Efficient Magnetic Particles and Activated Carbon for Dye Removal from Wastewater

Seyedehmaryam Moosavi et al.

ACS OMEGA (2020)

Article Multidisciplinary Sciences

Redox mechanisms of conversion of Cr(VI) to Cr(III) by graphene oxide-polymer composite

P. C. Bandara et al.

Scientific Reports (2020)

Review Engineering, Environmental

Metal oxides and metal organic frameworks for the photocatalytic degradation: A review

Sanjeev Gautam et al.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2020)

Article Materials Science, Multidisciplinary

Linear Sulfur-Nylon Composites: Structure, Morphology, and Antibacterial Activity

Vijay S. Wadi et al.

ACS APPLIED POLYMER MATERIALS (2020)

Article Chemistry, Multidisciplinary

Sulfur-Doped Carbon Chain Network as High-Performance Electrocatalyst for Electro-Fenton System

Ramakrishnan Kamaraj et al.

CHEMISTRYSELECT (2019)

Article Engineering, Multidisciplinary

Synthesis of TiO2/Graphene oxide nanocomposites for their enhanced photocatalytic activity against methylene blue dye and ciprofloxacin

Shakeel Ahmad Khan et al.

COMPOSITES PART B-ENGINEERING (2019)

Article Materials Science, Ceramics

Efficient photo catalysts based on silver doped ZnO nanorods for the photo degradation of methyl orange

Muhammad Ali Bhatti et al.

CERAMICS INTERNATIONAL (2019)

Article Chemistry, Physical

Hierarchical Co3O4 decorated PPy nanocasting core-shell nanospheres as a high performance electrocatalysts for methanol oxidation

Diab Khalafallah et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2018)

Review Engineering, Chemical

Removal of heavy metals and organic pollutants from water using dendritic polymers based adsorbents: A critical review

Muhammad Sajid et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2018)

Article Engineering, Chemical

PDA-meditated green synthesis of amino-modified, multifunctional magnetic hollow composites for Cr(VI) efficient removal

Ran Li et al.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2017)

Article Chemistry, Multidisciplinary

Removal of dye from industrial wastewater with an emphasis on improving economic efficiency and degradation mechanism

Azam Pirkarami et al.

JOURNAL OF SAUDI CHEMICAL SOCIETY (2017)

Article Chemistry, Multidisciplinary

Biomass Derived Sheet-like Carbon/Palladium Nanocomposite: An Excellent Opportunity for Reduction of Toxic Hexavalent Chromium

Pitchaimani Veerakumar et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2017)

Article Engineering, Environmental

Rapid reduction of dye pollutants and hexavalent chromium by silver-sulphur oxido-vanadium cluster

Biraj Das et al.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2017)

Article Chemistry, Physical

Template-Free Vapor-Phase Growth of Patronite by Atomic Layer Deposition

Matthew S. Weimer et al.

CHEMISTRY OF MATERIALS (2017)

Article Nanoscience & Nanotechnology

Two-Dimensional Titanium Carbide for Efficiently Reductive Removal of Highly Toxic Chromium(VI) from Water

Yulong Ying et al.

ACS APPLIED MATERIALS & INTERFACES (2015)

Article Engineering, Civil

Hexavalent chromium review, part 2: Chemistry, occurrence, and treatment

Laurie S. McNeill et al.

JOURNAL AMERICAN WATER WORKS ASSOCIATION (2012)

Article Chemistry, Analytical

Oxidation of CrIII to CrVI during chlorination of drinking water

Dana R. Lindsay et al.

JOURNAL OF ENVIRONMENTAL MONITORING (2012)

Article Chemistry, Multidisciplinary

α-Sulfur Crystals as a Visible-Light-Active Photocatalyst

Gang Liu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2012)

Article Engineering, Environmental

Chromate-Induced Activation of Hydrogen Peroxide for Oxidative Degradation of Aqueous Organic Pollutants

Alok D. Bokare et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2010)

Article Engineering, Environmental

Bioremediation of Cr(VI) and Immobilization as Cr(III) by Ochrobactrum anthropi

Yangjian Cheng et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2010)

Review Environmental Sciences

Removal of Hexavalent Chromium-Contaminated Water and Wastewater: A Review

Mojdeh Owlad et al.

WATER AIR AND SOIL POLLUTION (2009)

Review Chemistry, Multidisciplinary

Gold Nanocages: Synthesis, Properties, and Applications

Sara E. Skrabalak et al.

ACCOUNTS OF CHEMICAL RESEARCH (2008)

Article Environmental Sciences

Reduction of hexavalent chromium by ascorbic acid in aqueous solutions

XR Xu et al.

CHEMOSPHERE (2004)