Enhanced photoelectrocatalytic hydrogen production performance of porous MoS2/PPy/ZnO film under visible light irradiation

Xue, Jinbo; Zhang, Han; Shen, Qianqian; Zhang, Wenjin; Gao, Jiaqi; Li, Qi; Liu, Xuguang; Jia, Husheng

doi:10.1016/j.ijhydene.2021.08.083

Cited by 21 publications

(5 citation statements)

References 47 publications

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“…The curve areas of the photoanodes increase with increasing scan rate. The CV curves of TCN-3 cover much more areas than other photoanodes, suggesting better electrochemical activity . Additionally, the Tafel plots of the photoanodes in 0.5 M Na 2 SO 4 are shown in Figure S9.…”

Section: Resultsmentioning

confidence: 99%

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Preparation of TiO₂/CdS/Ni(OH)₂ Composite Photoanode for Nonsacrificial Photoelectrochemical Water Splitting

Kong,

Zhang,

Zhang

et al. 2023

ACS Appl. Energy Mater.

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A TiO 2 /CdS/Ni(OH) 2 composite photoanode for nonsacrificial solar water splitting is reported. In the TiO 2 /CdS/ Ni(OH) 2 composite photoanode, TiO 2 not only acts as a "adhesive tape" but also forms a type II heterojunction with CdS. The double exposed crystal faces of CdS have a stronger photocatalytic reaction activity. Ni(OH) 2 works as a hole transfer relay, which relieves the self-corrosion of CdS. The incident photon-to-current efficient (IPCE) value of the TiO 2 /CdS/Ni(OH) 2 photoanode presents the maximum IPCE value, which is more than 2 times higher than the TiO 2 /CdS photoanode. Importantly, the TiO 2 /CdS/ Ni(OH) 2 photoanode exhibits much enhanced photocurrent, and the applied bias photon-to-current efficiency (ABPE) efficiency is 4.2 times of the TiO 2 /CdS photoanode. The photoelectrochemical (PEC) stability of the TiO 2 /CdS/Ni(OH) 2 photoanode is significantly improved. This work provides new perspectives to design an efficient and stable photoanode for PEC water splitting.

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Section: Resultsmentioning

confidence: 99%

“…The CV curves of TCN-3 cover much more areas than other photoanodes, suggesting better electrochemical activity. 50 Additionally, the Tafel plots of the photoanodes in 0. CdS (126 mV/dec) < TiO 2 /N-CdS (137 mV/dec) < TiO 2 (323 mV/dec).…”

Section: Resultsmentioning

confidence: 99%

Preparation of TiO₂/CdS/Ni(OH)₂ Composite Photoanode for Nonsacrificial Photoelectrochemical Water Splitting

Kong,

Zhang,

Zhang

et al. 2023

ACS Appl. Energy Mater.

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“…Visible light, Aqueous KCl 0.040 HER [97] ChemElectroChem nature, and chain length may vary. Electrochemical polymerization is a straightforward process and in a short time coating on the substrate can be done.…”

Section: Conductive Polymermentioning

confidence: 99%

“…Xue et al fabricated a zinc photoelectrocatalyst modified with PPy and molybdenum for HER. [97] To begin, PPy was electropolymerized onto prepared ZnO nanorods on FTOG substrate followed by chemical etching to increase porosity; next, MoS 2 nanoparticles were electrodeposited onto the etched PPy surface to complete the novel MoS 2 /PPy/ZnO photoelectrocatalyst. FE-SEM images showed sponge-like porous surface morphology, the nanorods interconnected in the PAni matrix and uniformly coated with MoS 2 nanoparticles (Figure 21a).…”

Section: Conducting Polymers For Photoelectrochemical Her/oer Studiesmentioning

confidence: 99%

Recent Developments in Conductive Polymer‐Based Electro‐/Photoelectrocatalytic Materials for Effective Hydrogen/Oxygen Evolution Reactions: A Review

et al. 2022

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Currently, a substantially greener energy source such as hydrogen fuel cell is an alternative to fossil fuel sources, and much research has been dedicated to achieving highly efficient hydrogen (H2 gas) generation. In this line, electrochemical water splitting that involves hydrogen and oxygen evolution reactions (HER and OER, respectively) is considered to be the greener and most effective hydrogen‐generating procedure with only water as a by‐product. However, in the process of successful OER/HER, it is extremely demanding for electrocatalysts with high activity, stability and cost‐effectiveness for the water splitting process. Herein, the review proposed promising electrocatalysts such as conductive polymers (CPs) with enhanced catalytic effect with the polymer encapsulation of catalytic material that provides an increase in charge transfer kinetics both in OER/HER. Also, the review highlights the OER and HER mechanism of conducting polymers and their effect on the synergism was discussed in detail. Also, the review detailed the reduced overpotentials, importance and enhancement of catalytic efficiency with various polymers reported in both OER and HER. Here, the choice of polymers can matrix with the inorganic active sites to prevent them from aggregation and the water splitting carried out over the electrode surface results in good conductivity to charge transfer from the electrode to the active sites. In addition, the review discussed the polymers induces the photon effect with photoelectrocatalytic water splitting. Thus, the combing effect with conducting polymers and the materials with catalytic active centers open up a new kind of electrocatalyst for synthesis.

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“…Apart from environmental pollution, the energy crisis issues brought on by the excessive use of fossil fuels is also one of the most significant obstacles preventing human society from expanding [ 13 ]. The burning of fossil fuels releases hazardous gases into the environment, such as ammonia, carbon dioxide, methane, etc [ 14 ]. Many scientific experts are concentrating on discovering ecologically suitable and renewable energy sources to replace fossil fuels [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Revolutionizing the Role of Solar Light Responsive BiVO4/BiOBr Heterojunction Photocatalyst for the Photocatalytic Deterioration of Tetracycline and Photoelectrocatalytic Water Splitting

Singla,

Devi,

Basu

2023

Materials

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In this study, a series of BiVO4/BiOBr composites with varying mole ratios were successfully synthesized using a hydrothermal method. The in-situ synthesis strategy facilitated the formation of a close interfacial contact between BiVO4 and BiOBr at the depletion zone, resulting in improved charge segregation, migration, reduced charge recombination, enhanced solar light absorption capacity, promoting narrow band gap, and large surface area. This study investigates the influence of different mole ratios of BiVO4 and BiOBr in a BiVO4/BiOBr nanocomposite on the photocatalytic degradation of tetracycline (TC), a pharmaceutical pollutant, and photoelectrocatalytic water splitting (PEC) under solar light irradiation. Maximum decomposition efficiency of ~90.4% (with a rate constant of 0.0159 min−1) for TC was achieved with 0.5 g/L of 3:1 BiVO4: BiOBr (31BVBI) photocatalyst within 140 min. The degraded compounds resulting from the TC abatement were analyzed using GC-MS. Furthermore, TC standards exhibited 78.2% and 87.7% removal of chemical oxygen demand (COD) and total organic carbon (TOC), respectively, while TC tablets showed 64.6% COD removal and 73.8% TOC removal. The PEC water splitting experiments demonstrated that the 31BVBI photoanode achieved the highest photocurrent density of approximately 0.2198 mA/cm2 at 1.23 V vs. RHE, resulting in the generation of approximately 1.864 mmolcm−2 s−1 of hydrogen, while remaining stable for 21,600 s. The stability of the photocatalyst was confirmed by post-degradation characterizations, which revealed intact crystalline planes, shape, and surface area. Comparisons with existing physicochemical methods used in industries indicate that the reported photocatalyst possesses strong surface catalytic properties and has the potential for application in industrial wastewater treatment and hydrogen generation, offering an advantageous alternative to costly and time-consuming processes.

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Enhanced photoelectrocatalytic hydrogen production performance of porous MoS2/PPy/ZnO film under visible light irradiation

Cited by 21 publications

References 47 publications

Preparation of TiO₂/CdS/Ni(OH)₂ Composite Photoanode for Nonsacrificial Photoelectrochemical Water Splitting

Preparation of TiO₂/CdS/Ni(OH)₂ Composite Photoanode for Nonsacrificial Photoelectrochemical Water Splitting

Recent Developments in Conductive Polymer‐Based Electro‐/Photoelectrocatalytic Materials for Effective Hydrogen/Oxygen Evolution Reactions: A Review

Revolutionizing the Role of Solar Light Responsive BiVO4/BiOBr Heterojunction Photocatalyst for the Photocatalytic Deterioration of Tetracycline and Photoelectrocatalytic Water Splitting

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Enhanced photoelectrocatalytic hydrogen production performance of porous MoS2/PPy/ZnO film under visible light irradiation

Cited by 21 publications

References 47 publications

Preparation of TiO2/CdS/Ni(OH)2 Composite Photoanode for Nonsacrificial Photoelectrochemical Water Splitting

Preparation of TiO2/CdS/Ni(OH)2 Composite Photoanode for Nonsacrificial Photoelectrochemical Water Splitting

Recent Developments in Conductive Polymer‐Based Electro‐/Photoelectrocatalytic Materials for Effective Hydrogen/Oxygen Evolution Reactions: A Review

Revolutionizing the Role of Solar Light Responsive BiVO4/BiOBr Heterojunction Photocatalyst for the Photocatalytic Deterioration of Tetracycline and Photoelectrocatalytic Water Splitting

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Preparation of TiO₂/CdS/Ni(OH)₂ Composite Photoanode for Nonsacrificial Photoelectrochemical Water Splitting

Preparation of TiO₂/CdS/Ni(OH)₂ Composite Photoanode for Nonsacrificial Photoelectrochemical Water Splitting