Al doping effect on the morphological, structural and photocatalytic properties of TiO2 thin layers

Bensouici, F.; Bououdina, M.; Dakhel, A.A.; Souier, T.; Tala-Ighil, R.; Toubane, Mahdia; Iratni, A.; Liu, S.; Cai, Weiping

doi:10.1016/j.tsf.2016.09.046

Cited by 21 publications

(12 citation statements)

References 45 publications

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“…It was noted that the effect of the doping amount on the photocatalytic activity has a curve with a maximum. 14,15,19,22,23,27,29,43,46,49 The analysis of published works showed that the value of the optimal doping amount differs for various elements. In the case of Al/TIO 2 , the optimum amount can be 0.5 wt% 22 or 0.2 wt%.…”

Section: This Journal Is © the Royal Society Of Chemistry 2020mentioning

confidence: 99%

“…In the case of Al/TIO 2 , the optimum amount can be 0.5 wt% 22 or 0.2 wt%. 23 These differences can be explained by both synthesis/doping methods and photocatalytic objects.…”

Section: This Journal Is © the Royal Society Of Chemistry 2020mentioning

confidence: 99%

“…[15][16][17][18][19] Recently, there has been increasing interest in the use of trivalent metals (Al, Nb) as doping materials as they improve the electrical, optical, and structural characteristics of titanium dioxide. [20][21][22][23][24] Doping of Al, Cu, Mo, or W always leads to a narrowing of the band gap of TiO 2 , which increases its photocatalytic activity upon irradiation with visible light. The introduction of Al 3+ into the crystal lattice of titanium dioxide leads to the appearance of oxygen vacancies, which increase the photocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

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Doped TiO₂: the effect of doping elements on photocatalytic activity

et al. 2020

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Section: This Journal Is © the Royal Society Of Chemistry 2020mentioning

confidence: 99%

“…In the case of Al/TIO 2 , the optimum amount can be 0.5 wt% 22 or 0.2 wt%. 23 These differences can be explained by both synthesis/doping methods and photocatalytic objects.…”

Section: This Journal Is © the Royal Society Of Chemistry 2020mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Doped TiO₂: the effect of doping elements on photocatalytic activity

et al. 2020

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“…As presented in figure 8b, it can also be clearly observed that Al-doped NOF nanosheets have lower adsorption-desorption balance concentration, further indicating that Al-doped NOF has higher adsorption ability. Secondly, the substitutional Al atoms result in the formation of defects, which enhances the carrier concentration and charge separation efficiency [26]. Moreover, Al impurity can act as transport channels to promote the transfer of photogenerated electrons and suppress the recombination of carriers.…”

Section: Resultsmentioning

confidence: 99%

Al-doped $$\hbox {Nb}_{3}\mathrm{O}_{7}\hbox {F}$$ nanosheets: preparation, characterization and photocatalytic performance under visible light irradiation

Huang

Yan

et al. 2019

Bull Mater Sci

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Doping can result in energy band rearrangement, high carrier concentration and fast carrier separation in semiconductor materials. Consequently, great enhancement in the photocatalytic performance can be achieved. In this work, Al 3+-doped niobium oxyfluoride (Nb 3 O 7 F) was synthesized by a facile hydrothermal approach for the first time. A series of characterization tools were used to investigate the phase, composition, microstructure, chemical state, spectrum response and band gap. The influence of Al doping on the photocatalytic performance was also investigated by varying the molar ratios of Al/Nb. The results confirmed that Al atoms have been successfully incorporated into the Nb 3 O 7 F lattice. Al doping led to slightly lowering of the band gap of Nb 3 O 7 F from 3.08 to 2.99 eV. Moreover, Nb 3 O 7 F with 0.06 mol% Al doping exhibited the highest degradation efficiency for methyl blue under visible light irradiation. Crystal defects generated by appropriate Al-doping increased the specific surface area and the optimized band gap could be responsible for the improved photocatalytic activity.

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“…[1]- [4]. Titanium dioxide (TiO2) is recognised as the most adaptable MOS material among others such as In2O3, ZnO, and SnO3 because to its extensive technological applications, including gas sensors [5], photocatalysts [6]- [8], biomedical [9], and solar cell devices [10]- [13].…”

Section: Research Article Aluminum Doped Titanium Dioxide Thin Film F...mentioning

confidence: 99%

Aluminum Doped Titanium Dioxide Thin Film for Perovskite Electron Transport Layer

Hashim

Ismail

Supee

et al. 2022

Mal. J. Fund. Appl. Sci.

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Aluminum (Al) doped titanium dioxide thin film with different Al doping concentration (Al = 0 mol%, 1 mol%, 3 mol%, 5 mol% and 7 mol%) were deposited using solution spin coating technique and the effect of Al concentration on the structural, morphological and optical properties were examine. All samples were annealed at 450°C for 1 hour. XRD reveal that the films exhibits anatase crystal phase at (101) peak orientation. Based on the FESEM and AFM image it is found that, surface morphology of the film was significantly affected with different doping concentration. Al doped titanium dioxide with 3 mol% Al concentration shows the highest transmittance compared to others samples. Consequently, it is shown that different Al doping concentration plays vital roles in producing an optimum Al doped titanium dioxide thin films samples.

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Al doping effect on the morphological, structural and photocatalytic properties of TiO2 thin layers

Cited by 21 publications

References 45 publications

Doped TiO₂: the effect of doping elements on photocatalytic activity

Doped TiO₂: the effect of doping elements on photocatalytic activity

Al-doped $$\hbox {Nb}_{3}\mathrm{O}_{7}\hbox {F}$$ nanosheets: preparation, characterization and photocatalytic performance under visible light irradiation

Aluminum Doped Titanium Dioxide Thin Film for Perovskite Electron Transport Layer

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Al doping effect on the morphological, structural and photocatalytic properties of TiO2 thin layers

Cited by 21 publications

References 45 publications

Doped TiO2: the effect of doping elements on photocatalytic activity

Doped TiO2: the effect of doping elements on photocatalytic activity

Al-doped $$\hbox {Nb}_{3}\mathrm{O}_{7}\hbox {F}$$ nanosheets: preparation, characterization and photocatalytic performance under visible light irradiation

Aluminum Doped Titanium Dioxide Thin Film for Perovskite Electron Transport Layer

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Doped TiO₂: the effect of doping elements on photocatalytic activity

Doped TiO₂: the effect of doping elements on photocatalytic activity