Dual-cocatalysts decorated rimous CdS spheres advancing highly-efficient visible-light photocatalytic hydrogen production

Wei, Ren-Bin; Huang, Zanling; Gu, Guang-Hui; Zhu, Wancheng; Zeng, Lixi; Chen, Yibo; Liu, Zhao‐Qing

doi:10.1016/j.apcatb.2018.03.014

Cited by 392 publications

(123 citation statements)

References 47 publications

Supporting

Mentioning

117

Contrasting

Order By: Relevance

“…A wide variety of semiconductor photocatalysts has been investigated so far, such as chalcogenides (ZnS, CdS, CdSe), metal oxides (TiO 2 , Cu 2 O, ZrO 2 ), carbonaceous materials (g‐C 3 N 4 ) and solid solutions [(Ga 1‐x Zn x )(N 1‐x O x ), (AgIn) x Zn 2(1‐x) S 2 ] . However, TiO 2 is still the most widely used photocatalyst because of its good stability in a wide range of pH conditions, resistance to photo‐corrosion, nontoxicity and commercial availability.…”

Section: Influence Of System Units On Photocatalytic Performancementioning

confidence: 99%

See 1 more Smart Citation

Comprehensive review and future perspectives on the photocatalytic hydrogen production

Corredor

Rivero

Rangel

et al. 2019

J of Chemical Tech & Biotech

174

View full text Add to dashboard Cite

Hydrogen represents a renewable energy alternative that may positively contribute to get over the global energy crisis while at the same time reducing its environmental burden. Overcoming the challenge of reaching this potential could be helped by careful choice of hydrogen (H2) sources. Photocatalytic generation of H2, although a minor alternative, appears to be a very good option at the time that liquid wastes are being degraded; therefore, this approach has given rise to an increasing number of interesting studies. Here, we aim to provide an integrated overview of the different photocatalytic, heterogeneous, homogeneous and hybrid systems. First, we categorize the units and mechanisms that take part in the photocatalytic process, and secondly we analyze their role and draw comparative conclusions. Thus, we analyze the role of (i) the electron source to carry out proton reduction, (ii) the proton source, which can be free protons in the medium or a proton donor compound, (iii) the catalyst nature and concentration, and (iv) the photosensitizer nature and concentration. We also provide an analysis of the influence of the solvent, especially in homogenous systems as well as the influence of pH. We provide a comparison of the photocatalytic performance, highlighting the advantages and disadvantages, of different systems. Thus, this review is, on the one hand, an update on the state of the art of photocatalytic generation of H2 from a full perspective that integrates homogeneous, heterogeneous and hybrid systems, and, on the other, a source of useful information for future research. © 2019 Society of Chemical Industry

show abstract

Section: Influence Of System Units On Photocatalytic Performancementioning

confidence: 99%

“…Therefore, further research should be done towards TiO 2 band‐gap tuning. CdS‐based materials offer appropriate band gap (CdS band gap = 2.4 eV) to absorb visible light, but they are toxic and generally unstable in aqueous environments . These materials should be more deeply investigated to improve their stability.…”

Section: Future Perspectivesmentioning

confidence: 99%

Comprehensive review and future perspectives on the photocatalytic hydrogen production

Corredor

Rivero

Rangel

et al. 2019

J of Chemical Tech & Biotech

174

View full text Add to dashboard Cite

show abstract

“…Photocatalysis has been proved to be an effective method that can degrade organic contaminants in the wastewater using solar energy. [12] In recent years, a series of Ag-based photocatalysts, such as Ag 3 PO 4 and Ag 2 CO 3 , have been identified to exhibit excellent photocatalytic activity for photodegradation of organic pollutants under visible light irradiation. [6][7][8][9][10] As we know, ultraviolet light only occupies about 5 % of the sunlight, which is much less than visible light accounting for 49 %.…”

Section: Introductionmentioning

confidence: 99%

“…[11] Hence, it is urgent to develop visiblelight-driven photocatalysts with high activity and good stability. [12] In recent years, a series of Ag-based photocatalysts, such as Ag 3 PO 4 and Ag 2 CO 3 , have been identified to exhibit excellent photocatalytic activity for photodegradation of organic pollutants under visible light irradiation. [13,14] However, these Agbased photocatalysts easily confront with photocorrosion during the photodegradation process, which weakens the photocatalytic activity and photostability.…”

Section: Introductionmentioning

confidence: 99%

Carbon Cloth‐supported MoS₂/Ag₂S/Ag₃PO₄ Composite with High Photocatalytic Activity and Recyclability

Liu

Wang

et al. 2019

ChemCatChem

View full text Add to dashboard Cite

The immobilization of powdery photocatalysts has always been a key technology for its practical application in waste-water purification. In this study, we successfully prepared carbon cloth-supported MoS 2 /Ag 2 S/Ag 3 PO 4 (CCMS-AP) composite with high photocatalytic activity and good recyclable property for photodegradation of rhodamine B under visible light irradiation. The effects of immersion time of carbon cloth-supported MoS 2 in AgNO 3 solution on the performance of the CCMS-AP were investigated. The results show that the CCMS-AP prepared with 6 h of immersion time exhibits the highest photocatalytic activity with a reaction rate constant of 42.9 × 10 À 3 min À 1 , which is 4.93 times higher than that of carbon cloth-supported Ag 3 PO 4 . The direct Z-scheme photocatalytic system is responsible for the efficient charge separation and strong oxidation ability of the composite. Moreover, the MoS 2 and carbon fibers provid high speed charge transfer channels for photo-generated electrons, leading to lower recombination rate of electronhole pairs and higher photocatalytic performance of the composite photocatalyst. Our strategy can be extended to fabricate many other recyclable carbon cloth-supported photocatalysts with high performance that shows promising potential applications in wastewater treatment.

show abstract

“…are visible-light-active photocatalysts with unique electronic structure and optical properties. [23][24][25][26][27][28] Specifically, ZnÀ InÀ S, a visible light responding ternary semiconductor, has drawn widespread attention in photocatalysis owning to its high activity and narrow bandgap. [29,30] For example, Bai's group used ZnIn 2 S 4 shells as visible light sensitizers to improve lightharvesting efficiency, and resultantly presents significantly enhanced photoelectrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Zn₃In₂S₆/TiO₂ for Enhanced CO₂ Photocatalytic Reduction Activity Via Z‐scheme Electron Transfer

et al. 2018

View full text Add to dashboard Cite

Photocatalytic reduction of CO2 is increasingly attracting research interest for the growing concerns about climate change resulted from the greenhouse effect due to the industrial emission of CO2. In this paper, we report the synthesis of Zn3In2S6 modified TiO2 nanocomposite via a facial hydrothermal method. The samples were characterized by photoluminescence spectra (PL), UV‐vis diffuse reflectance spectra (DRS), X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), X‐ray photoelectron spectroscopy (XPS) and energy dispersive X‐ray spectroscopy (EDS). The production rate of CO from CO2 is dramatically improved over the obtained composite catalyst. The contact between Zn3In2S6 and TiO2 is responsible for this ameliorated photocatalytic activity because of the formation of the Z‐scheme charge transfer mechanism which favors the separation of photo‐induced charges.

show abstract

Dual-cocatalysts decorated rimous CdS spheres advancing highly-efficient visible-light photocatalytic hydrogen production

Cited by 392 publications

References 47 publications

Comprehensive review and future perspectives on the photocatalytic hydrogen production

Comprehensive review and future perspectives on the photocatalytic hydrogen production

Carbon Cloth‐supported MoS₂/Ag₂S/Ag₃PO₄ Composite with High Photocatalytic Activity and Recyclability

Preparation of Zn₃In₂S₆/TiO₂ for Enhanced CO₂ Photocatalytic Reduction Activity Via Z‐scheme Electron Transfer

Contact Info

Product

Resources

About

Dual-cocatalysts decorated rimous CdS spheres advancing highly-efficient visible-light photocatalytic hydrogen production

Cited by 392 publications

References 47 publications

Comprehensive review and future perspectives on the photocatalytic hydrogen production

Comprehensive review and future perspectives on the photocatalytic hydrogen production

Carbon Cloth‐supported MoS2/Ag2S/Ag3PO4 Composite with High Photocatalytic Activity and Recyclability

Preparation of Zn3In2S6/TiO2 for Enhanced CO2 Photocatalytic Reduction Activity Via Z‐scheme Electron Transfer

Contact Info

Product

Resources

About

Carbon Cloth‐supported MoS₂/Ag₂S/Ag₃PO₄ Composite with High Photocatalytic Activity and Recyclability

Preparation of Zn₃In₂S₆/TiO₂ for Enhanced CO₂ Photocatalytic Reduction Activity Via Z‐scheme Electron Transfer