4.6 Article

Enhanced photocatalytic reduction of hexavalent chromium ions over S-Scheme based 2D MoS2-supported TiO2 heterojunctions under visible light

Related references

Note: Only part of the references are listed.
Article Engineering, Environmental

Mesoporous black TiO2/MoS2/Cu2S hierarchical tandem heterojunctions toward optimized photothermal-photocatalytic fuel production

Zhenzi Li et al.

Summary: Mesoporous black TiO2/MoS2/Cu2S hierarchical tandem heterojunctions are fabricated as photocatalysts with visible-light photocatalytic hydrogen production rate of 3376.7 μmol h-1 g-1, attributed to suitable band gap alignment in the hierarchical tandem heterojunctions.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Environmental Sciences

Cobalt ferrite-modified sol-gel synthesized ZnO nanoplatelets for fast and bearable visible light remediation of ciprofloxacin in water

Ahmed Shawky et al.

Summary: Metal oxide photocatalysts are efficient and environmentally-friendly tools, but they face challenges in practical applications. In this study, sol-gel synthesis was used to create CFO/ZnO nanoheterojunctions, with the addition of CFO improving the performance of ZnO. The formed nanoheterojunctions exhibited high visible light activity and showed excellent degradation efficiency for ciprofloxacin. This research suggests that nanoheterojunction oxides have great potential for the destruction of pharmaceutical wastes under visible-light illumination.

ENVIRONMENTAL RESEARCH (2022)

Article Engineering, Environmental

S-scheme heterojunction based on p-type ZnMn2O4 and n-type ZnO with improved photocatalytic CO2 reduction activity

Hongzhao Deng et al.

Summary: Hierarchical ZnMn2O4/ZnO nanofibers were prepared as photocatalysts, outperforming pristine ZnO nanofibers by showing a about 4-fold increment in CO and CH4 yields. The enhanced charge separation efficiency and the realization of S-scheme charge transfer were demonstrated in the composite, providing new insights into the design of S-scheme photocatalysts composed of p-type and n-type semiconductors.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Environmental Sciences

Artisanal gold mining in the eastern Amazon: Environmental and human health risks of mercury from different mining methods

Renato Alves Teixeira et al.

Summary: This study evaluated the contamination and risks caused by mercury from artisanal gold mining in the Brazilian Amazon. High concentrations of mercury in underground mining tailings exceeded prevention values, indicating elevated risk. Enrichment of mercury in underground mining tailings suggests anthropogenic source for high concentrations.

CHEMOSPHERE (2021)

Article Environmental Sciences

Construct interesting CuS/TiO2 architectures for effective removal of Cr(VI) in simulated wastewater via the strong synergistic adsorption and photocatalytic process

Zhen Wu et al.

Summary: A facile strategy was developed to construct CuS/TiO2 structures for high-efficiency removal of Cr(VI) ions. The combination of CuS microspheres with TiO2 crystals led to a significant enhancement in removal efficiency, with the unique electrical structure playing a crucial role in the process.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Engineering, Chemical

Rational synthesis of SrTiO3 nanodots anchored mesocrystalline anatase TiO2 submicrospheres for photocatalytic reduction of CrVI

Shengxin Cao et al.

Summary: Mesoporous anatase TiO2 sphere based materials have been extensively studied for environmental applications due to their advantageous properties. By utilizing mesocrystalline anatase submicrospheres, novel sphere-shaped anatase mesocrystal/SrTiO3 nanodot heterostructures were successfully developed and showed enhanced activity in reducing hexavalent chromium under solar light. This study provides a useful method for designing TiO2 based photocatalysts with complex spherical morphologies for environmental purification.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

Article Environmental Sciences

Human health risk simulation and assessment of heavy metal contamination in a river affected by industrial activities

Hong-Giang Hoang et al.

Summary: This study assessed the human health risks caused by heavy metal contamination in the surface water of the Houjing River in southern Taiwan. The results showed severe synergistic contamination of heavy metals with copper, nickel, and lead contributing the most, and copper posing the highest non-carcinogenic risk. Additionally, the cumulative risks from fish ingestion were significantly higher than those from swimming scenarios.

ENVIRONMENTAL POLLUTION (2021)

Article Chemistry, Physical

Fabrication of g-C3N4/PW12/TiO2 composite with significantly enhanced photocatalytic performance under visible light

Hongfei Shi et al.

Summary: A new g-C3N4/PW12/TiO2 composite photocatalyst was fabricated through electrospinning/calcination technique and thermal polymerization method, showing remarkable and stable photocatalytic performance under visible light irradiation. The enhanced performance can be attributed to enhanced adsorption in visible-light region, high specific surface area, and effective separation and transfer of photoinduced charge carriers.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

Article Chemistry, Physical

1T and 2H mixed phase MoS2 nanobelts coupled with Ti3+ self-doped TiO2 nanosheets for enhanced photocatalytic degradation of RhB under visible light

Qian Zhang et al.

Summary: The novel 1T-2H MoS2/TiO2-x composite shows excellent photocatalytic degradation performance due to its 2D heterostructure, Ti3+ and oxygen vacancy defects, and the acceleration of charge transfer by metallic 1T phase MoS2. This composite provides abundant reaction active sites, extends the photoresponse to visible light region, and benefits effective charge separation and transport.

APPLIED SURFACE SCIENCE (2021)

Article Environmental Sciences

Removal and degradation of mixed dye pollutants by integrated adsorption-photocatalysis technique using 2-D MoS2/TiO2 nanocomposite

Gauthaman Chandrabose et al.

Summary: The study focuses on using MoS2/TiO2 nanocomposites to remove mixed dye pollutants through a two-stage adsorption/photocatalysis process. By using a high percentage of MoS2 in Stage-I and a low percentage in Stage-II, the process showed complete removal of methylene blue dye 5 times faster than conventional single-stage water treatment processes. Additionally, the method demonstrated excellent performance in removing mixed dye pollutants even at higher concentrations.

CHEMOSPHERE (2021)

Article Polymer Science

Mesoporous V2O5/g-C3N4 Nanocomposites for Promoted Mercury (II) Ions Reduction Under Visible Light

Ahmed Shawky et al.

Summary: The study successfully demonstrated the photocatalytic reduction of mercury ions over V2O5/g-C3N4 composites, attributing its outstanding performance to factors such as enhanced surface area, bandgap confinement, uniform dispersion of V2O5, and suppression of photocharge recombination.

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS (2021)

Article Chemistry, Physical

Ag/Ag2O-decorated sol-gel-processed TeO2 nanojunctions for enhanced H2 production under visible light

Soha M. Albukhari et al.

Summary: The introduction of silver/silver oxide on tellurium dioxide photocatalysts enhances photoactivity and hydrogen production. The formed heterojunction photocatalysts show excellent stability and increased efficiency in hydrogen production.

JOURNAL OF MOLECULAR LIQUIDS (2021)

Article Chemistry, Physical

Solution-based synthesis of Co3O4/ZnO p-n heterojunctions for rapid visible-light-driven oxidation of ciprofloxacin

Hind Alshaikh et al.

Summary: In this study, a solution-based synthesis method was used to prepare Co3O4/ZnO heterojunction photocatalysts, which exhibited excellent photocatalytic performance for wastewater treatment, with high surface area and broader visible-light absorption range.

JOURNAL OF MOLECULAR LIQUIDS (2021)

Article Engineering, Chemical

Highly active ZIF-8 derived CuO@ZnO p-n heterojunction nanostructures for fast visible-light-driven photooxidation of antibiotic waste in water

Maha Al-Haddad et al.

Summary: Nanostructured CuO@ZnO p-n heterojunctions were synthesized by loading Cu precursor on ZIF-8 derived ZnO, showing enhanced surface area and light absorption. The optimal 3.0 wt.% CuO@ZnO exhibited complete tetracycline photooxidation within 45 minutes with exceptional recyclability. The high activity was attributed to the extreme surface area and migrated photoinduced charges within the CuO@ZnO heterojunction.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2021)

Article Environmental Sciences

Phase transformation of Cr(VI)-adsorbed ferrihydrite in the presence of Mn(II): Fate of Mn(II) and Cr(VI)

Zecong Ding et al.

Journal of Environmental Sciences-China (2021)

Article Engineering, Chemical

Hydrothermal construction of flower-like MoS2 on TiO2 NTs for highly efficient environmental remediation and photocatalytic hydrogen evolution

Dandan Cao et al.

Summary: A convenient and efficient anodic oxidation method was used to grow TiO2 nanotubes on Ti sheets, followed by assembling ultrathin MoS2 nanosheets to construct a composite photocatalyst. The photocatalyst exhibited improved pollutant removal efficiency and excellent hydrogen evolution performance due to the enhanced reactivity centers in the photocatalytic reaction and the superior carrier separation and migration capacity. The mechanism of pollutant removal and hydrogen generation by TiO2 NTs/MoS2 heterojunction was proposed and analyzed based on their energy band structure and free radical capture experiments.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

Article Chemistry, Multidisciplinary

Biomass-derived active carbon (AC) modified TiO2 photocatalyst for efficient photocatalytic reduction of chromium (VI) under visible light

Mabkhoot Alsaiari

Summary: Efforts to create a novel visible light efficient photocatalyst using biomass derived active carbon modified TiO2 have shown successful results in reducing chromium (VI) to chromium (III) under visible light. The developed photocatalysts demonstrated enhanced photo-reduction efficiencies and recyclability, with promising potential for practical applications.

ARABIAN JOURNAL OF CHEMISTRY (2021)

Proceedings Paper Materials Science, Multidisciplinary

Removal of hexavalent Chromium-Industry treated water and Wastewater: A review

S. S. Kerur et al.

Summary: Heavy metals in industrial effluents pose a threat to the environment and public health, requiring effective treatment methods to reduce their pollution. Effluent treatment technologies should focus on recovering heavy metals and utilizing treated effluent efficiently. Adsorption is a prominent technique for heavy metals treatment.

MATERIALS TODAY-PROCEEDINGS (2021)

Article Engineering, Multidisciplinary

Visible-light-driven zeolite imidazolate frameworks-8@ZnO composite for heavy metal treatment

Xuewen Wang et al.

COMPOSITES PART B-ENGINEERING (2020)

Article Materials Science, Multidisciplinary

Fabrication of TiO2 embedded ZnIn2S4 nanosheets for efficient Cr(VI) reduction

Ming Li et al.

MATERIALS RESEARCH BULLETIN (2020)

Article Chemistry, Physical

1T-and 2H-mixed phase MoS2 nanosheets coated on hollow mesoporous TiO2 nanospheres with enhanced photocatalytic activity

Haixin Zhao et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2020)

Article Engineering, Chemical

Improving visible-light-induced photocatalytic ability of TiO2 through coupling with Bi3O4Cl and carbon dot nanoparticles

Aziz Habibi-Yangjeh et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2020)

Article Chemistry, Multidisciplinary

Green approach and ease synthesis of C/N-codoped TiO2 nanocrystals for photodegradation of endocrine

L. A. Al-Hajji et al.

JOURNAL OF NANOPARTICLE RESEARCH (2020)

Article Materials Science, Multidisciplinary

Enhanced visible light photocatalytic performances of few-layer MoS2@TiO2 hollow spheres heterostructures

Jinyu Su et al.

MATERIALS RESEARCH BULLETIN (2020)

Review Chemistry, Multidisciplinary

S-Scheme Heterojunction Photocatalyst

Quanlong Xu et al.

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)

Article Chemistry, Physical

Enhanced photoelectrochemical properties of hierarchical black TiO2-x nanolaces for Cr (VI) photocatalytic reduction

Khaled M. Chahrour et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2020)

Article Materials Science, Multidisciplinary

Growth of AgBr/Ag3PO4 Heterojunction on Chitosan Fibers for Degrading Organic Pollutants

Si-wei Xiong et al.

ADVANCED FIBER MATERIALS (2020)

Article Chemistry, Physical

CuS assembled rGO heterojunctions for superior photooxidation of atrazine under visible light

Maha Alhaddad et al.

JOURNAL OF MOLECULAR LIQUIDS (2020)

Article Chemistry, Physical

Sandwich structure MoO2/MoS2/TiO2 photocatalyst for superb hydrogen evolution

Jinhui Wang et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2020)

Article Materials Science, Multidisciplinary

Construction of n-TiO2/p-Ag2O Junction on Carbon Fiber Cloth with Vis-NIR Photoresponse as a Filter-Membrane-Shaped Photocatalyst

Gumila Duoerkun et al.

ADVANCED FIBER MATERIALS (2020)

Article Materials Science, Multidisciplinary

Enhanced Photocatalytic Performance of Surface-Modified TiO2 Nanofibers with Rhodizonic Acid

Yijun Sun et al.

ADVANCED FIBER MATERIALS (2020)

Article Chemistry, Physical

The MoS2/TiO2 heterojunction composites with enhanced activity for CO2 photocatalytic reduction under visible light irradiation

Peng-Yao Jia et al.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2019)

Article Materials Science, Ceramics

TiO2 @ MoSe2 line-to-face heterostructure: An advanced photocatalyst for highly efficient reduction of Cr (VI)

Shumin Zhang et al.

CERAMICS INTERNATIONAL (2019)

Article Chemistry, Multidisciplinary

Fabrication of MoS2/TiO2 heterostructures with enhanced photocatalytic activity

Yi Lin et al.

CRYSTENGCOMM (2019)

Review Chemistry, Multidisciplinary

Nanostructured materials for photocatalysis

Chunping Xu et al.

CHEMICAL SOCIETY REVIEWS (2019)

Review Nanoscience & Nanotechnology

Two-Dimensional Transition Metal Oxide and Chalcogenide-Based Photocatalysts

Farjana Haque et al.

NANO-MICRO LETTERS (2018)

Review Nanoscience & Nanotechnology

Two-Dimensional Transition Metal Oxide and Chalcogenide-Based Photocatalysts

Farjana Haque et al.

NANO-MICRO LETTERS (2018)

Review Chemistry, Physical

Recent development on MoS2-based photocatalysis: A review

Zizhen Li et al.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS (2018)

Article Nanoscience & Nanotechnology

The electronic properties and enhanced photocatalytic mechanism of TiO2 hybridized with MoS2 sheet

Fengjuan Guo et al.

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES (2018)

Review Nanoscience & Nanotechnology

Cr(VI) remediation from aqueous environment through modified-TiO2-mediated photocatalytic reduction

Rashmi Acharya et al.

BEILSTEIN JOURNAL OF NANOTECHNOLOGY (2018)

Review Chemistry, Multidisciplinary

Metallic Transition-Metal Dichalcogenide Nanocatalysts for Energy Conversion

Haoyi Li et al.

Article Nanoscience & Nanotechnology

Versatile and Scalable Strategy To Grow Sol-Gel Derived 2H-MoS2 Thin Films with Superior Electronic Properties: A Memristive Case

Marco V. Nardi et al.

ACS APPLIED MATERIALS & INTERFACES (2018)

Article Engineering, Environmental

Removal and Recovery of Heavy Metal Ions by Two-dimensional MoS2 Nanosheets: Performance and Mechanisms

Zhongying Wang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2018)

Article Environmental Sciences

Removal of hexavalent chromium upon interaction with biochar under acidic conditions: mechanistic insights and application

Bharat Choudhary et al.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2017)

Article Chemistry, Physical

Hollow spherical RuO2@TiO2@Pt bifunctional photocatalyst for coupled H2 production and pollutant degradation

Bing Cao et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2016)

Article Materials Science, Ceramics

Preparation and photocatalytic properties of RuO2/TiO2 composite nanotube arrays

Zhumei Wang et al.

CERAMICS INTERNATIONAL (2016)

Article Materials Science, Multidisciplinary

Cr(VI) photocatalytic reduction under sunlight followed by Cr(III) extraction from TiO2 surface

Ridha Djellabi et al.

MATERIALS LETTERS (2016)

Article Engineering, Chemical

Characterization and photocatalytic performance of La and C co-doped anatase TiO2 for photocatalytic reduction of Cr(VI)

X. F. Lei et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2016)

Article Chemistry, Multidisciplinary

Visible light photocatalytic degradation of cyanide using Au-TiO2/multi-walled carbon nanotube nanocomposites

R. M. Mohamed et al.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY (2015)

Article Engineering, Chemical

Photocatalytic degradation of imazapyr using mesoporous Al2O3-TiO2 nanocomposites

Adel A. Ismail et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2015)

Article Chemistry, Multidisciplinary

MoS2 Quantum Dot-Interspersed Exfoliated MoS2 Nanosheets

Deepesh Gopalakrishnan et al.

ACS NANO (2014)

Article Chemistry, Physical

Sol-gel synthesis of vanadia-silica for photocatalytic degradation of cyanide

AA Ismail et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2003)