Chemical composition, microstructure, bandgap energy and electrocatalytic activities of TiO2 and Ag-doped TiO2 powder synthesized by solution combustion technique

Jongprateep, Oratai; Meesombad, Kornkamon; Techapiesancharoenkij, Ratchatee; Surawathanawises, Krissada

doi:10.1016/j.ceramint.2018.08.108

Cited by 12 publications

(9 citation statements)

References 32 publications

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“…Similar observations have been reported by Jongprateep et al. and Bidier et al., who observed that the average ZnO particle size decreased as a result of the presence of dopant ions along the ZnO grain boundaries 42,43 …”

Section: Resultssupporting

confidence: 88%

“…Scanning electron micrographs of (A) undoped ZnO and (B) 3 mol% Ti-doped ZnO F I G U R E 5 Transmission electron micrographs of (A) undoped ZnO and (B) 3 mol% Ti-doped ZnOThe refinement in ZnO particles as a result of Ti doping was evident in both the scanning and transmission electron micrographs. Similar observations have been reported by Jongprateep et al and Bidier et al, who observed that the average ZnO particle size decreased as a result of the presence of dopant ions along the ZnO grain boundaries 42,43. …”

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confidence: 90%

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MWCNT/Ti‐doped ZnO nanocomposite as electrochemical sensor for detecting glutamate and ascorbic acid

Pitiphattharabun

Meesombad

Panomsuwan

et al. 2021

Int J Applied Ceramic Tech

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Attributed to high stability and reproducibility, non-enzymatic electrochemical sensors have been extensively utilized in detection of various chemical substances. In this study, multi-walled carbon nanotube (MWCNT)/Ti-doped ZnO composite was prepared for fabrication of working electrode used in detection of glutamate and ascorbic acid. Ti-doped ZnO particles with the average size of 44.47 ± 4.05 nanometers were synthesized by the solution combustion technique. Hydrothermal impregnation was employed in preparation of the MWCNT/Ti-doped ZnO composite. Electrocatalytic activities of the

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Section: Resultssupporting

confidence: 88%

supporting

confidence: 90%

MWCNT/Ti‐doped ZnO nanocomposite as electrochemical sensor for detecting glutamate and ascorbic acid

Pitiphattharabun

Meesombad

Panomsuwan

et al. 2021

Int J Applied Ceramic Tech

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“…With sufficient electron density, the electrons behaved as a new conduction band, leading to a decrease of the bandgap energy. 26 Therefore, the band gap of 0.05Ag-0.1N-TiO 2 -AC is the lowest, and the synergistic effect of Ag and N will effectively improve its photocatalytic performance under visible light irradiation.…”

Section: Resultsmentioning

confidence: 99%

“…With sufficient electron density, the electrons behaved as the conduction band, leading to a decrease of the bandgap energy. 26 Furthermore, the AgNPs promoted interfacial charge-transfer processes. 24 More photoelectrons were removed to the conduction level of TiO 2 and finally consumed by the adsorbed oxygen on the surface to yield highly oxidative species, such as superoxide radical anions.…”

Section: Resultsmentioning

confidence: 99%

The structure and self-regeneration performance of Salix psammophila-activated carbon modified by Ag and N co-doped TiO₂

Liu

Lang

2020

RSC Adv.

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“…The average crystallite sizes of the AGZO thin films were determined from SEM and XRD data by two corresponding methods: (1) an image analysis technique using ImageJ Software (LOCI, University of Wisconsin-Madison, WI, USA), and (2) Scherer's equation, which is given as [27]:…”

Section: Thin Film Characterization Methodsmentioning

confidence: 99%

Effect of Al and Ga codoping on the morphological, electronic, and optical properties of ZnO transparent conductive thin films prepared by spray pyrolysis technique

Sripianem¹,

Techapiesancharoenkij²

2018

Turk J Phys

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Codoping a semiconductor thin film with two or more dopants is a feasible technique to improve the electrical properties of the thin film. In this work, we studied the codoping of Al and Ga n-type impurities in a ZnO film (AGZO) deposited on a glass substrate by the spray pyrolysis method. The total doping concentration, [Al + Ga]/[Al + Ga + Zn], was 5 at.% with varying Al:Ga codoping proportions of 0:5, 1.25:3.75, 2.5:2.5, 3.75:1.25, and 5:0 at.%. The effect of Al/Ga codoping on the structural, texture, morphological, optical, and electrical properties of the AGZO films were investigated using X-ray diffraction (XRD), atomic force microscope (AFM), scanning electron microscopy (SEM), UVvisible spectroscopy, and four-point probe technique, respectively. Varying Al:Ga codoping proportions significantly alter the textures and morphologies of the AGZO thin films. Thin films with higher Al doping content exhibit amorphouslike structures due to fine nano grains with high concentrations of disordered grain boundary regions. The optical transmittance spectrums show transmittance higher than 80% in the visible light region for all the codoped films. The sheet resistances and electrical resistivity of the AGZO films are significantly lower than those of the 5 at.% Al-doped ZnO films.

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Chemical composition, microstructure, bandgap energy and electrocatalytic activities of TiO2 and Ag-doped TiO2 powder synthesized by solution combustion technique

Cited by 12 publications

References 32 publications

MWCNT/Ti‐doped ZnO nanocomposite as electrochemical sensor for detecting glutamate and ascorbic acid

MWCNT/Ti‐doped ZnO nanocomposite as electrochemical sensor for detecting glutamate and ascorbic acid

The structure and self-regeneration performance of Salix psammophila-activated carbon modified by Ag and N co-doped TiO₂

Effect of Al and Ga codoping on the morphological, electronic, and optical properties of ZnO transparent conductive thin films prepared by spray pyrolysis technique

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Chemical composition, microstructure, bandgap energy and electrocatalytic activities of TiO2 and Ag-doped TiO2 powder synthesized by solution combustion technique

Cited by 12 publications

References 32 publications

MWCNT/Ti‐doped ZnO nanocomposite as electrochemical sensor for detecting glutamate and ascorbic acid

MWCNT/Ti‐doped ZnO nanocomposite as electrochemical sensor for detecting glutamate and ascorbic acid

The structure and self-regeneration performance of Salix psammophila-activated carbon modified by Ag and N co-doped TiO2

Effect of Al and Ga codoping on the morphological, electronic, and optical properties of ZnO transparent conductive thin films prepared by spray pyrolysis technique

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Product

Resources

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The structure and self-regeneration performance of Salix psammophila-activated carbon modified by Ag and N co-doped TiO₂