Photoelectrochemical (PEC) water splitting of BiOI{001} nanosheets synthesized by a simple chemical transformation

Shan, Lianwei; He, L. L.; Suriyaprakash, Jagadeesh; Yang, Lixin

doi:10.1016/j.jallcom.2016.01.008

Cited by 48 publications

(26 citation statements)

References 49 publications

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“…However,s imilart oB iOCl, BiOBr undergoes slow photocorrosion and forms Bi metal. [67] n-Type BiOI was syn- Figure 3. [65] Unlike the valence band BiOCl, that of BiOX consists of Bi 6s, Bi 6p, O2p, and I5p orbitals, and the conduction band minimum mainly comprises Bi 6p with ac ontribution from the I5po rbital, as depicted in Figure 4a.…”

Section: Pec Water Splitting Of Bismuth-based Nanomaterials 21 Bismmentioning

confidence: 99%

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Recent Advances in Bismuth‐Based Nanomaterials for Photoelectrochemical Water Splitting

2017

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In recent years, bismuth-based nanomaterials have drawn considerable interest as potential candidates for photoelectrochemical (PEC) water splitting owing to their narrow band gaps, nontoxicity, and low costs. The unique electronic structure of bismuth-based materials with a well-dispersed valence band comprising Bi 6s and O 2p orbitals offers a suitable band gap to harvest visible light. This Review presents significant advancements in exploiting bismuth-based nanomaterials for solar water splitting. An overview of the different strategies employed and the new ideas adopted to improve the PEC performance of bismuth-based nanomaterials are discussed. Morphology control, the construction of heterojunctions, doping, and co-catalyst loading are several approaches that are implemented to improve the efficiency of solar water splitting. Key issues are identified and guidelines are suggested to rationalize the design of efficient bismuth-based materials for sunlight-driven water splitting.

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Section: Pec Water Splitting Of Bismuth-based Nanomaterials 21 Bismmentioning

confidence: 99%

“…BiVO 4 exists in three polymorphic forms:m onoclinic, orthorhombic,a nd tetragonal crystal systems. [67] Reproduced from Ref. Therefore, Figure 4.…”

Section: Bismuthvanadatementioning

confidence: 99%

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Recent Advances in Bismuth‐Based Nanomaterials for Photoelectrochemical Water Splitting

2017

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“…Recently, one type of technologies based on photoelectrochemical (PEC) reactions is expected as a potential route to solve the problems [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. These technologies share some features in common, including utilization of nanostructured or molecular semiconductors to harvest sunlight, and conversion of solar energy into fuels or electricity by electrochemical reactions, etc.…”

Section: Introductionmentioning

confidence: 99%

“…These technologies share some features in common, including utilization of nanostructured or molecular semiconductors to harvest sunlight, and conversion of solar energy into fuels or electricity by electrochemical reactions, etc. For instance, hydrogen (H 2 ), regarded as one of the most promising candidates to fossil fuels, could be produced by photocatalytic water (H 2 O) splitting [3,[5][6][7][15][16][17]. Photocatalytic degradation of organic pollutants is a feasible and cost-effective way to address the environmental problem [1,2,9,10].…”

Section: Introductionmentioning

confidence: 99%

Sonication-polished anodic TiO2 nanotube array-based photoanode for efficient solar energy conversion

Zhong

Guo

et al. 2016

J Solid State Electrochem

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In this work, the capping layer atop anodic TiO 2 nanotube arrays (NTAs), which hinders filling of other guest materials and transport of charge carriers, is discerned to be TiO 2 nanotapes. Then, it is completely removed by a novel sonication-polishing (SP) treatment, after which Sb 2 S 3 is subsequently introduced to fill the nanotubes by chemical bath deposition. The morphological, structural, and optical properties of the SP-treated TiO 2 NTAs and TiO 2 NTAs/Sb 2 S 3 heterogeneous structures are characterized systematically. The results indicate that SP treatment opens the tops of nanotubes with diameters of ∼120 nm, which endure a phase conversion from amorphous to anatase after calcination at 450°C; besides, stibnite Sb 2 S 3 with a band gap of ∼1.75 eV inside the TiO 2 networks is formed upon heat treatment at 330°C in Ar, which enhances the absorption in visible light range. The photoelectrochemical (PEC) and photovoltaic properties for the SP-treated TiO 2 NTAs are investigated. Results shows that the photoresponse of TiO 2 NTAs is improved by the SP treatment, and the photocurrent for the TiO 2 NTAs/Sb 2 S 3 electrode is substantially enhanced as compared to the bare TiO 2 one. A high efficiency of 6.28 % is achieved in a TiO 2 NTAs/Sb 2 S 3 PEC cell. In addition, charge recombination in the photoanode of dye-sensitized solar cells (DSSCs) is observed to be greatly retarded by using the SP-treated TiO 2 NTAs as compared to TiO 2 nanoparticles (NPs). Thus, the SP anodic TiO 2 NTAs are promising in applications in various PEC areas such as photocatalysis and sensitized solar cells.

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Two‐Dimentional Nanostructured Metal Oxide/Sulfide–Based Photoanode for Photoelectrochemical Water Splitting

Tian

2020

Solar RRL

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The utilization of solar energy plays a vital role in relieving energy crisis and associated environmental problems. Photoelectrochemical (PEC) water splitting, which can directly transform solar energy into clean hydrogen energy, is one of the most promising strategies to utilize solar energy. 2D nanostructured metal oxides/sulfides have been widely applied as photoanodes in PEC cells due to their unique configuration and features, which can efficiently improve light absorption, enlarge electrode/electrolyte contacting interfaces, and promote carrier transfer and injection. This article begins with the introduction of performance parameters, carrier dynamics measurement, and mechanism exploration techniques for photoanodes, which is followed by an overview of research progress in using 2D nanostructure metal oxides/sulfides to fabricate efficient photoanodes for PEC water splitting. Subsequently, the recent representative strategies to optimize the PEC performance of 2D metal oxides/sulfides photoanodes, including structure engineering, defect engineering, element doping, heterojunction construction, and surface modification, are summarized. Finally, the exciting advances and future research directions for designing highly efficient 2D photoanodes are provided.

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Photoelectrochemical (PEC) water splitting of BiOI{001} nanosheets synthesized by a simple chemical transformation

Cited by 48 publications

References 49 publications

Recent Advances in Bismuth‐Based Nanomaterials for Photoelectrochemical Water Splitting

Recent Advances in Bismuth‐Based Nanomaterials for Photoelectrochemical Water Splitting

Sonication-polished anodic TiO2 nanotube array-based photoanode for efficient solar energy conversion

Two‐Dimentional Nanostructured Metal Oxide/Sulfide–Based Photoanode for Photoelectrochemical Water Splitting

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