Synergy of Photocatalysis and Adsorption for Simultaneous Removal of Hexavalent Chromium and Methylene Blue by g-C3N4/BiFeO3/Carbon Nanotubes Ternary Composites

Huo, Huiwen; Hu, Xinjiang; Wang, Hui; Li, Jiang; Xie, Guangyu; Tan, Xiaofei; Qi, Jin; Zhou, Daixi; Li, Chuang; Qiu, Guoqiang; Liu, Yunguo

doi:10.3390/ijerph16173219

Cited by 28 publications

(14 citation statements)

References 54 publications

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“…The composites of pristine BiFeO 3 with other semiconductor materials are also studied and used for photocatalytic pollutant degradation, which includes different photocatalysts, viz., BiFeO 3 /Bi 25 FeO 40 , BiFeO 3 –Ti 3 C 2 , BiFeO 3 –ZrO 2 , and BiFeO 3 –TiO 2 . Some ternary and quaternary composites, viz., Ag 3 PO 4 /Bi 25 FeO 40 /GO, Ag 2 CrO 4 /Ag/BiFeO 3 @RGO, Ag/BiPO 4 /BiOBr/BiFeO 3 , and g-C 3 N 4 /BiFeO 3 /CNTs are also reported for the degradation of different organic pollutants. As earlier discussed about the defected perovskites, Chen et al have prepared oxygen-deficient BiFeO 3 by high-pressure and high-temperature treatment of pristine BiFeO 3 NP under H 2 atmosphere .…”

Section: Energy and Environmental Applicationsmentioning

confidence: 94%

Perovskite Oxide Based Materials for Energy and Environment-Oriented Photocatalysis

2020

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The use of solar energy to catalyze the photo-driven processes has attracted tremendous attention from the scientific community because of its great potential to address energy and environmental issues. In this regard, several attempts have been made by researchers to design and develop different materials with enhanced photocatalytic efficiencies. This Review comprehensively summarizes the recent reports on perovskite oxide based photocatalysts for organic pollutant degradation, water splitting, carbon dioxide conversion, and nitrogen fixation along with the basic understanding of involved mechanisms, current trends and advances in the field. The different design, synthesis, and development strategies have been discussed in detail to provide a comprehensive view of materials’ fabrication that influences their photocatalytic properties. Subsequently, the insights from recent reports on different perovskite oxide based materials, including simple oxides, mixed oxides, and layered perovskite oxides, are provided for the above-mentioned photocatalytic applications in a detailed manner. Finally, a summary of photocatalytic applications and a perspective on future research direction have been discussed. Based on the research progress in this field, it is highly anticipated that the photocatalytic systems, comprising perovskite oxide materials along with groundbreaking technologies for large-scale realization of these processes, can be established in the near future to address the energy and environment-oriented challenges.

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Section: Energy and Environmental Applicationsmentioning

confidence: 94%

Perovskite Oxide Based Materials for Energy and Environment-Oriented Photocatalysis

2020

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“…The findings demonstrated that CNTs could significantly improve the photocatalytic efficiency of the prepared composite by reducing the rate of electron-hole pair recombination. The rates of elimination of Cr 6+ after 5 h of adsorption by CNBT were 98% [90]. Zhu et al prepared nano nickel particles implanted in Nitrogen-doped CNTs with porous biochar support (Ni-N-K-C).…”

Section: Chromium (Cr)mentioning

confidence: 99%

A comprehensive review of the application of modified carbon nanotubes (CNTs) for the removal of metals from wastewater

Abdullah,

Rasheed,

Adnan

et al. 2023

Mater. Res. Express

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Carbon nanotubes (CNTs), a type of carbonaceous material, have extremely distinctive qualities in terms of tensile strength, heat stability, electrical conductivity, catalysis, and adsorption. These properties rely on structure, length, and thickness. Carbon nanotube and metal oxide combination have been successfully used over the past few decades to create carbon nanomaterials with extraordinary features. The current study offers an outline of the developments in the theory, procedures, and chemical modification of CNT with metals or polymers. This review presents different synthesis methods of functionalized CNTs along with their properties and factors affecting their adsorption capacity. In addition, it explains the role of different functionalized CNTs in removing different metals like Pb2+, Cd2+, Cr3+, Cr6+, Ni2+, Tl+3, and Hg2+ from wastewater. The adsorption capacity of these modified CNTs is in the range of 130-180 mg/g. This review offers an essential understanding of the methods for creating multifunctional nano-hybrids for a variety of applications and future prospects of the use of nanomaterials for environmental remediation.

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“…The poor result of the p-g-CN/rGO/BiVO 4 structure is likely due to the formation of a typical type II heterojunction facilitated by the increased charge mobility and intermediate charge states introduced by rGO as well as the combined shadowing effects from BiVO 4 and rGO. [8,52,53] The layering of the rGO and BiVO 4 sheets on the surface of p-g-CN may have also limited the mass transport at the surface.…”

Section: Photocatalytic Co 2 Reductionmentioning

confidence: 99%

Solar Fuel Generation by 2D Self‐Assembled g‐C₃N₄/BiVO₄ Z‐Scheme

LaChance,

Adeli,

Taghipour

2023

Solar RRL

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Graphitic carbon nitride (g‐CN) is a promising photocatalyst for solar fuel generation due to its medium band gap and facile synthesis from earth‐abundant materials. However, low charge carrier mobility and high charge recombination have hampered the observed rate of H2 evolution and CO2 reduction. Herein, an electrostatically self‐assembled 2D Z‐scheme heterojunction between g‐CN and bismuth vanadate (BiVO4) is investigated with and without reduced graphene oxide (rGO) acting as an electron transfer mediator to speed charge carrier mobility and hamper charge recombination. Protonation of the g‐CN surface allow for self‐assembly between 2D sheets of g‐CN, rGO, and BiVO4. The mass ratio between g‐CN and BiVO4 is incrementally adjusted to optimize synergistic charge transportation effects versus shadowing effects of multicomponent photocatalysts. Further, a selectivity effect is observed across mass ratios of photocatalyst constituents, allowing tuning of photocatalyst yield.

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Synergy of Photocatalysis and Adsorption for Simultaneous Removal of Hexavalent Chromium and Methylene Blue by g-C3N4/BiFeO3/Carbon Nanotubes Ternary Composites

Cited by 28 publications

References 54 publications

Perovskite Oxide Based Materials for Energy and Environment-Oriented Photocatalysis

Perovskite Oxide Based Materials for Energy and Environment-Oriented Photocatalysis

A comprehensive review of the application of modified carbon nanotubes (CNTs) for the removal of metals from wastewater

Solar Fuel Generation by 2D Self‐Assembled g‐C₃N₄/BiVO₄ Z‐Scheme

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Synergy of Photocatalysis and Adsorption for Simultaneous Removal of Hexavalent Chromium and Methylene Blue by g-C3N4/BiFeO3/Carbon Nanotubes Ternary Composites

Cited by 28 publications

References 54 publications

Perovskite Oxide Based Materials for Energy and Environment-Oriented Photocatalysis

Perovskite Oxide Based Materials for Energy and Environment-Oriented Photocatalysis

A comprehensive review of the application of modified carbon nanotubes (CNTs) for the removal of metals from wastewater

Solar Fuel Generation by 2D Self‐Assembled g‐C3N4/BiVO4 Z‐Scheme

Contact Info

Product

Resources

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Solar Fuel Generation by 2D Self‐Assembled g‐C₃N₄/BiVO₄ Z‐Scheme