Photoelectrochemical Water Splitting by Using Nanomaterials: A Review

Aslam, Sidra; Awais, Muhammad; Ahmed, Sohail; Safdar, Muhammad; Buksh, Asia Allah; Haroone, Muhammad Sohail

doi:10.1007/s11664-023-10794-z

J. Electron. Mater.

2023

DOI: 10.1007/s11664-023-10794-z

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Photoelectrochemical Water Splitting by Using Nanomaterials: A Review

Sidra Aslam,

Muhammad Awais,

Sohail Ahmed

et al.

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Cited by 7 publications

References 158 publications

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Photoelectrocatalytic Reduction of Nitrobenzene to Azobenzene by Using Ag Nanoparticles‐Decorated Si Nanocone Arrays Photocathodes

Zhang,

Yu,

et al. 2024

ChemPhotoChem

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Photoelectrocatalytic (PEC) reduction of nitrobenzene (NB) is an extremely promising technology for renewable energy utilization and conversion. PEC reduction of NB to produce higher‐value azobenzene (AZB) instead of aniline (AN), which is now commonly reported, is not currently achievable. In this work, we fabricated Ag nanoparticles (AgNPs)‐decorated silicon nanocone (SiNC) array photocathodes with which the PEC reduction of NB to azobenzene (AZB) was realized for the first time. The SiNC array structure constructed by cryogenic dry etching greatly improved the light absorption ability of the photoelectrode. Ag was chosen as the cocatalyst because of its larger potential difference for the NB reduction reaction and the competing side reaction hydrogen evolution reaction. The Schottky junction formed by AgNPs with Si facilitates the rapid extraction of photogenerated electrons to participate in the PEC reaction. Under the optimized conditions, the PEC reduction of NB was achieved with a conversion of more than 90%, with the reduction products being mainly AZB (9:1 ratio of AZB to AN) as well as excellent stability. The present work provides a photoelectrode that highly selectively PEC reduction of NB to AZB, and also provides insights into the design and preparation of high‐performance silicon‐based photoelectrodes.

show abstract

Photoelectrocatalytic Reduction of Nitrobenzene to Azobenzene by Using Ag Nanoparticles‐Decorated Si Nanocone Arrays Photocathodes

Zhang,

Yu,

et al. 2024

ChemPhotoChem

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show abstract

Structural, morphological, optical and electrical characterization of MgO thin films grown by sputtering technique on different substrates

Toprak,

Efkere,

Aydın

et al. 2024

J Mater Sci: Mater Electron

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Magnesium Oxide (MgO) thin film structures were deposited on glass and n-Si substrates by means of RF magnetron sputtering technique. Structural, morphological, optical characteristics of MgO thin film were determined by XRD, AFM and UV–Vis spectrometer techniques. The optical properties like absorption coefficient and optical band gap were extracted using optical transmittance and absorption spectra. The band-gap of MgO thin film was determined for direct electronic transition. Additionally, electric parameters like ideality factor, saturation current and barrier height of the Au/MgO/n-Si device were computed from the forward I–V data in dark state. The ideality factor was found to be greater than one. This indicates that the I–V characteristics of the device exhibits non-ideal attitude. The results show that the MgO thin film can be applied to both optical and electronic device applications.

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Nanomaterials for the Catalytic Degradation and Detection of Microplastics: A Review

Khan,

Asif,

Asif

et al. 2024

Top Catal

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Photoelectrochemical Water Splitting by Using Nanomaterials: A Review

Cited by 7 publications

References 158 publications

Photoelectrocatalytic Reduction of Nitrobenzene to Azobenzene by Using Ag Nanoparticles‐Decorated Si Nanocone Arrays Photocathodes

Photoelectrocatalytic Reduction of Nitrobenzene to Azobenzene by Using Ag Nanoparticles‐Decorated Si Nanocone Arrays Photocathodes

Structural, morphological, optical and electrical characterization of MgO thin films grown by sputtering technique on different substrates

Nanomaterials for the Catalytic Degradation and Detection of Microplastics: A Review

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