Synthesis of BiOCl-Ag/AgBr heterojunction and its photoelectrochemical and photocatalytic performance

Li, Wei; He, Shu‐ao; Xu, Wenyuan; Ji, Li; Wang, Xuechuan

doi:10.1016/j.electacta.2018.07.009

Cited by 34 publications

(14 citation statements)

References 44 publications

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“…Liu et al synthesized ZnIn 2 S 4 /N-doped graphene heterojunctions via hydrothermal method, which improved the photocatalytic activity of ZnIn 2 S 4 for CO 2 photoreduction [18]. Recently, reducing the size of bulk materials to the nanometer scale, such as ultrathin two-dimensional (2D) nanosheets, has received tremendous attention because it can not only offer a high surface area with more surface reactive sites but also reduce charge diffusion length to retard their recombination [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Oxygen-doping of ZnIn2S4 nanosheets towards boosted photocatalytic CO2 reduction

Pan

Rhimi

et al. 2021

Journal of Energy Chemistry

167

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Section: Introductionmentioning

confidence: 99%

Oxygen-doping of ZnIn2S4 nanosheets towards boosted photocatalytic CO2 reduction

Pan

Rhimi

et al. 2021

Journal of Energy Chemistry

167

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“…All characterizations for composition, morphology, and photo‐electrochemical properties were finished by our previous method, and the detailed description is given in Supplementary Material (supporting information).…”

Section: Methodsmentioning

confidence: 99%

“…The electrochemical characteristics of the samples were tested by the our previous method, and the detailed description is given in supporting information.…”

Section: Methodsmentioning

confidence: 99%

A BiOCl/β-FeOOH heterojunction for HER photocatalytic performance under visible-light illumination

Wang

et al. 2019

Int J Energy Res

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Summary β‐iron oxide hydroxide (β‐FeOOH) had been proven to be an effective co‐catalyst during H2 evolution reaction (HER) process. In this research, a BiOCl/β‐FeOOH heterojunction was successfully synthesized by a solid‐state doping method. Then, the structure, composition, and photo‐electrochemical properties of the prepared photocatalysts were studied. For the superior HER photocatalytic activity of ultrasmall β‐FeOOH nanoparticles (NPs) and the formation of the BiOCl/β‐FeOOH heterojunction, this heterojunction photocatalyst exhibited very superior photocatalytic performance in the HER process. Especially, when the amount of incorporated β‐FeOOH NPs was appropriate, the BFOH‐2 possessed the highest photocatalytic activity in HER process, and the HER rate was about 16.64 mmol·g−1·h−1 during illuminated time of 6 hours under visible light. When appropriate, ultrasmall β‐FeOOH NPs were implanted into the structure of BiOCl, the BiOCl/β‐FeOOH heterojunction interfaces would form for the existence of interfacial interactions. Therefore, this BiOCl/β‐FeOOH heterojunction exhibited superior visible‐light response, fast photo‐carrier migration, and high‐efficient separation of photo‐carriers, so that the BFOH‐2 heterojunction possessed high‐efficient hydrogen evolution reaction (HER) photocatalytic activity.

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“…21,22 Based on these problems, lots of works aim to improve the performance of traditional photocatalysts, such as heterostructure fabrication, [23][24][25] metal/nonmetal doping, 26,27 plasma introduction, 28,29 composite with conductive materials, 30,31 crystal regulation, 32,33 surface modification, 34,35 defect formation 36,37 and so on. 39 Yi et al 40 reported a Co-TiO 2 /nitrogen doped graphene composite for hydrogen production. Our group synthesized a BiOCl-Ag/AgBr heterojunction for effective degradation of organic pollutants in water.…”

Section: Introductionmentioning

confidence: 99%

“…Our group synthesized a BiOCl-Ag/AgBr heterojunction for effective degradation of organic pollutants in water. 39 Yi et al 40 reported a Co-TiO 2 /nitrogen doped graphene composite for hydrogen production. Zhang et al 41 prepared a GO-Ln-DPDPP nanocomposite with effective separation of electrons and holes to improve the H 2 production activity.…”

Section: Introductionmentioning

confidence: 99%

High photoresponse and fast carrier mobility: Two‐dimensional rGO‐AgBr/Ag composite based on Z‐scheme heterointerface with plasma for hydrogen evolution

Wang

et al. 2019

Int J Energy Res

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With the improvement of people's living standard, energy shortage is increasingly severe. Photocatalysis technology is one of the most effective means to solve this problem. Generally, poor visible-light response and fast combination of photo-induced carriers are the main limiting factors to traditional photocatalysts. Aiming at this problem, in this paper, AgBr was used as the photosensitizer to immobilize on the surface of reduced graphene oxide (rGO) for the complexation of Ag + ions and carboxyl groups of precursor graphene oxide (GO), then the two-dimensional rGO-AgBr/Ag composites (2D rGAA-α, α = 1, 2 and 3) were synthesized by solvothermal method. The structures, morphologies, chemical bonding states and photoelectrochemical properties of the samples were analyzed to study the samples, and the corresponding visible-light-driven (VLD) catalytic performances were studied by hydrogen evolution reaction (HER). Compared with pure rGO, the light absorption of rGAA-α was almost extended to full spectral range for the Zscheme heterointerface (rGO-AgBr) construction, and the separation of photo-induced carriers can be promoted effectively. The HER results showed that the average hydrogen evolution rate ( R p ) of rGAA-α was significantly increased, and the rGAA-2 catalyst presented the highest R p (72.71 μmol h -1 g -1 ). After six recycling experiments, the very faint activity decrease and unobvious structure change suggested the high photostability. Accordingly, the enhanced catalytic activity of rGAA-α catalysts was attributed to the formation of Z-scheme heterointerface and generation of Ag plasmas, so this study will provide a simple, effective and promising method for hydrogen energy development. FIGURE 9 VLD photocatalytic mechanism of rGAA-α photocatalyst for HER [Colour figure can be viewed at wileyonlinelibrary.com]

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Synthesis of BiOCl-Ag/AgBr heterojunction and its photoelectrochemical and photocatalytic performance

Cited by 34 publications

References 44 publications

Oxygen-doping of ZnIn2S4 nanosheets towards boosted photocatalytic CO2 reduction

Oxygen-doping of ZnIn2S4 nanosheets towards boosted photocatalytic CO2 reduction

A BiOCl/β-FeOOH heterojunction for HER photocatalytic performance under visible-light illumination

High photoresponse and fast carrier mobility: Two‐dimensional rGO‐AgBr/Ag composite based on Z‐scheme heterointerface with plasma for hydrogen evolution

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