Enhanced photo-absorption of anatase TiO2 with Ni and Eu doping: A first principle study

Nazir, Bakhtawar; Rehman, U.; Arshad, Sidra; Arshad, M. Imran; Sabir, Nadeem; Javid, Muhammad Arshad; Iqbal, Faisal; Nabi, M. Ajaz un

doi:10.1016/j.matpr.2020.05.529

Cited by 8 publications

(2 citation statements)

References 17 publications

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“…Cobalt (Co) and nickel (Ni) doping on TiO2 has several roles in improving photocatalytic performance, including: Increase Light utilization Efficiency: Cobalt and nickel doping can modify the structure and electronic properties of TiO2, resulting in better light absorption over a wider spectrum range (Nazir et al, 2021); Enhances the Formation of Electron-Hole Pairs: Cobalt and nickel can act as additional impurities or reaction sites in the TiO2 crystal structure, facilitating the formation of electron-hole pairs that participate in redox reactions and promote the degradation of target organic compounds (Misriyani et al, 2020;X. Zhang et al, 2021); Improving Electron Transfer Efficiency: Cobalt and nickel doping can increase the efficiency of electron transfer from TiO2 to target compounds, such as tartrazine (Jensen et al, 2015;Jiang et al, 2015;Subramanian et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Pengembangan TiO2 nanowire terdoping Nikel Kobalt sebagai Fotokatalis yang Efisien untuk Menghilangkan Pewarna Tartrazine

Misriyani,

If'all,

Sahabuddin

2024

jppipa, pendidikan ipa, fisika, biologi, kimia

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Tartrazine is a yellow synthetic dye that is widely used as a coloring agent in food and beverage products. However, the safety of this chemical compound is still a concern due to potential health risks such as allergic reactions, hyperactive behavior in children, increased risk of cancer and other negative impacts. This research aim to introduces a new approach to reduce the concentration of tartrazine dye using cobalt and nickel doped TiO2 nanowires. Cobalt- and nickel-doped TiO2 nanowires were synthesized by a hydrothermal method, followed by thermal treatment at 270°C, and then used in a photocatalytic reactor using UV irradiation to facilitate the reduction of tartrazine concentration. Material characterization was carried out to determine the morphology and crystallinity of the photocatalyst which is effective in reducing the absorption of tartrazine solution. The photocatalytic degradation experiment demonstrates the ability of the synthesized material as a photocatalyst, effectively reducing the absorbance of tartrazine solution, a commonly used food coloring. This finding promises significant progress in the development of sustainable food safety strategies by offering a dye degradation method.

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Section: Introductionmentioning

confidence: 99%

Pengembangan TiO2 nanowire terdoping Nikel Kobalt sebagai Fotokatalis yang Efisien untuk Menghilangkan Pewarna Tartrazine

Misriyani,

If'all,

Sahabuddin

2024

jppipa, pendidikan ipa, fisika, biologi, kimia

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“…In terms of the theoretical calculations, the optical properties of doped TiO 2 are mainly calculated by first-principle [10][11][12][13], so as to further explain the experimental phenomena. At present, the calculation of doped TiO 2 mainly focuses on the optical properties, including energy band structure, total or partial densities of state, absorption spectrum, reflectance spectrum and so on [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

First-principle study on the optical properties of TiO2 doped with different Lu contents

Luo,

Xiang,

Chen

et al. 2023

JOR

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Compared to pure TiO2, Lu-doped TiO2 shows enhanced photocatalytic performance in the visible light range. In order to investigate the influence of Lu doping contents on optical properties of Lu-doped TiO2, we conducted first-principle on TiO2 with different contents of Lu doping. The results indicate that as the contents of Lu increases, the band gap of Lu-doped TiO2 gradually decreases. Within the visible light range, Lu-doped TiO2 exhibits an expanded absorption band ranging from 450 nm to 600 nm. Furthermore, when the Lu contents reaches 9.09 at%, the absorption intensity shows a higher value between 700 nm and 800 nm. Lu-doped TiO2 demonstrates a low reflectance in the visible light region, with the maximum reflectance occurring in the infrared region at approximately 65%. The calculated dielectric constant results suggest that the probability of electronic absorption of photons in Lu-doped TiO2 initially decreases and then increases with an increase in Lu contents.

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Decanoic acid-palmitic acid/SiO2@TiO2 phase change microcapsules based on RBF model with excellent photocatalysis performance and humidity control property

Zhang

Gao²,

Zong³

et al. 2023

Environ Sci Pollut Res

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Enhanced photo-absorption of anatase TiO2 with Ni and Eu doping: A first principle study

Cited by 8 publications

References 17 publications

Pengembangan TiO2 nanowire terdoping Nikel Kobalt sebagai Fotokatalis yang Efisien untuk Menghilangkan Pewarna Tartrazine

Pengembangan TiO2 nanowire terdoping Nikel Kobalt sebagai Fotokatalis yang Efisien untuk Menghilangkan Pewarna Tartrazine

First-principle study on the optical properties of TiO2 doped with different Lu contents

Decanoic acid-palmitic acid/SiO2@TiO2 phase change microcapsules based on RBF model with excellent photocatalysis performance and humidity control property

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