ZnS/polyaniline composites with improved dispersing stability and high photocatalytic hydrogen production activity

Chang, Chi‐Jung; Chu, Kuan-Wu

doi:10.1016/j.ijhydene.2016.07.155

Cited by 50 publications

(14 citation statements)

References 41 publications

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“…The sharp, strong and well‐separated diffraction peaks indicated that the samples were well‐crystallized after being calcining at 400 °C. As for the ZnS sample, three major diffraction peaks at 28.7, 48.2, and 57.2° were observed, which corresponded to the (111), (200) and (311) planes of the cubic zinc blende (JCPDS 39–1363) . In the XRD patterns of the Bi 2 O 3 /ZnS heterojunction, the characteristic peaks of Bi 2 O 3 at 27.5 and 33.3° can be clearly found with sharp peaks.…”

Section: Resultsmentioning

confidence: 91%

Preparation and Performance of Visible‐Light‐Driven Bi₂O₃/ZnS Heterojunction Functionalized Porous CA Membranes for Effective Degradation of Rhodamine B

Chu

et al. 2018

Physica Status Solidi (a)

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Photocatalytic degradation is an effective method for fast removal of dye‐contaminated water. In the present work, a bismuth oxide/zinc sulfide‐cellulose acetate photocatalytic membrane (Bi2O3/ZnS‐CA) is successfully fabricated via the phase‐inversion method with a Bi2O3/ZnS heterojunction as the photocatalyst. The Bi2O3/ZnS‐CA membranes shows high photocatalytic activity in degradation of Rhodamine B (RhB) under visible‐light irradiation due to the Bi2O3/ZnS heterojunction structure contributing to the high efficiency of photogenerated charge separation. The photodegradation efficiency of Bi2O3/ZnS‐CA membrane is significantly enhanced (about 30% improvement) and the photodegradation kinetic is four times faster than that of the Bi2O3‐CA and the ZnS‐CA membranes. Moreover, the Bi2O3/ZnS‐CA membrane exhibits excellent permeation flux (649.7 L m−2 h−1) and high porosity (69.94%). The Bi2O3/ZnS‐CA membrane also shows good adsorption performance of RhB, which could enhance the interaction between RhB and the catalyst. This work provides a new sight to construct highly effective visible‐light‐driven photocatalytic membranes for continuous organic dye treatment.

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Section: Resultsmentioning

confidence: 91%

Preparation and Performance of Visible‐Light‐Driven Bi₂O₃/ZnS Heterojunction Functionalized Porous CA Membranes for Effective Degradation of Rhodamine B

Chu

et al. 2018

Physica Status Solidi (a)

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“…[65]. A recent study showed that polyaniline (PANI)/ZnS synthesized by solvothermal method increases the hydrogen evolution rate up to 6750 μmol h −1 g −1 because PANI has unique electron and hole transporting properties [66]. PANI-ZnS composite photocatalysts exhibit improved dispersibility, light harvesting, and photocurrent response.…”

Section: Cadmium Sulfidementioning

confidence: 99%

Recent Progress on Metal Sulfide Composite Nanomaterials for Photocatalytic Hydrogen Production

Lee

Chang

2019

Catalysts

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Metal sulfide-based photocatalysts have gained much attention due to their outstanding photocatalytic properties. This review paper discusses recent developments on metal sulfide-based nanomaterials for H2 production, acting as either photocatalysts or cocatalysts, especially in the last decade. Recent progress on key experimental parameters, in-situ characterization methods, and the performance of the metal sulfide photocatalysts are systematically discussed, including the forms of heterogeneous composite photocatalysts, immobilized photocatalysts, and magnetically separable photocatalysts. Some methods have been studied to solve the problem of rapid recombination of photoinduced carriers. The electronic density of photocatalysts can be investigated by in-situ C K-edge near edge X-ray absorption fine structure (NEXAFS) spectra to study the mechanism of the photocatalytic process. The effects of crystal properties, nanostructure, cocatalyst, sacrificial agent, electrically conductive materials, doping, calcination, crystal size, and pH on the performance of composite photocatalysts are presented. Moreover, the facet effect and light trapping (or light harvesting) effect, which can improve the photocatalytic activity, are also discussed.

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“…Nowadays, there are some studies about the removal of heavy metals and dyes from wastewater [ 32 , 33 , 34 , 35 ]. Inorganic nanomaterial/polymer composites have attracted much attention due to the increasing demand for new materials with improved photocatalytic, adhesion, mechanical, photoconductive, adhesion, and thermal properties [ 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ]. Liu et al reported that silver nanoparticles and polypyrrole-modified BiOBr with a Z-scheme heterostructure acted as a composite catalyst that possesses outstanding photocatalytic activity and stability [ 45 ].…”

Section: Introductionmentioning

confidence: 99%

Polymer/BiOBr-Modified Gauze as a Dual-Functional Membrane for Heavy Metal Removal and Photocatalytic Dye Decolorization

et al. 2020

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It is crucial to remove heavy metals and dyes before discharging industrial effluents. Gauze substrate was surface-modified by coating with a polymeric adsorbent and a spray coating of BiOBr photocatalyst to develop a novel dual-functional membrane, polymer/BiOBr-modified gauze, for water remediation. The polymeric adsorbent was crosslinked to prevent the dissolving of the adsorbent during operation in contaminated water. The morphology and surface chemistry of the modified gauze were characterized before and after the adsorption of Ni2+. The surface wettability, isotherms, and kinetics of Ni2+ adsorption were studied. We also studied the effect of pH, initial Ni2+ concentration, monomer molar ratio, and monomer chemical structure on the Ni2+ adsorption capacity. To achieve a high Ni2+ adsorption capacity and good photocatalytic decolorization activity, the amount of decorated BiOBr was tuned by changing the spray-coating time to optimize the exposed BiOBr and polymer on the surface. The optimized dual-functional membrane PB20 possesses excellent adsorption capacity (650 mg g−1) for Ni2+ ions and photocatalytic decolorization activity (100% degradation of RhB within 7 min). Decorating the optimized amount of BiOBr on the surface can introduce photocatalytic decolorization activity without sacrificing the adsorption capacity for Ni2+.

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ZnS/polyaniline composites with improved dispersing stability and high photocatalytic hydrogen production activity

Cited by 50 publications

References 41 publications

Preparation and Performance of Visible‐Light‐Driven Bi₂O₃/ZnS Heterojunction Functionalized Porous CA Membranes for Effective Degradation of Rhodamine B

Preparation and Performance of Visible‐Light‐Driven Bi₂O₃/ZnS Heterojunction Functionalized Porous CA Membranes for Effective Degradation of Rhodamine B

Recent Progress on Metal Sulfide Composite Nanomaterials for Photocatalytic Hydrogen Production

Polymer/BiOBr-Modified Gauze as a Dual-Functional Membrane for Heavy Metal Removal and Photocatalytic Dye Decolorization

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ZnS/polyaniline composites with improved dispersing stability and high photocatalytic hydrogen production activity

Cited by 50 publications

References 41 publications

Preparation and Performance of Visible‐Light‐Driven Bi2O3/ZnS Heterojunction Functionalized Porous CA Membranes for Effective Degradation of Rhodamine B

Preparation and Performance of Visible‐Light‐Driven Bi2O3/ZnS Heterojunction Functionalized Porous CA Membranes for Effective Degradation of Rhodamine B

Recent Progress on Metal Sulfide Composite Nanomaterials for Photocatalytic Hydrogen Production

Polymer/BiOBr-Modified Gauze as a Dual-Functional Membrane for Heavy Metal Removal and Photocatalytic Dye Decolorization

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Product

Resources

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Preparation and Performance of Visible‐Light‐Driven Bi₂O₃/ZnS Heterojunction Functionalized Porous CA Membranes for Effective Degradation of Rhodamine B

Preparation and Performance of Visible‐Light‐Driven Bi₂O₃/ZnS Heterojunction Functionalized Porous CA Membranes for Effective Degradation of Rhodamine B