Bismuth oxide/carbon nanodots/indium oxide heterojunctions with enhanced visible light photocatalytic performance

Chen, Hongjun; Li, Feiyang; Tao, Feihu; Huang, Jianfeng; Zhang, Yong; Pei, Lizhai

doi:10.1007/s10854-022-07896-5

Cited by 6 publications

(1 citation statement)

References 60 publications

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“…However, Ca aluminate nanoflakes possess large band gap which limit practical application. Sunlight is natural light and can be applied as visible light source to photocatalytic degradation of organic pollutants using proper semiconductor photocatalysts [7][8][9][10][11]. Therefore, it is essential to develop proper strategy to modify Ca aluminate nanoflakes using different materials to realize visible-light driven photocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Significantly Enhanced Photocatalytic Performance of Ag-doped Calcium Aluminate under Visible-light Irradiation

Cong,

Sun,

Wang

et al. 2023

e-J. Surf. Sci. Nanotechnol.

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Ag-doped Ca aluminate with different Ag dopant content and polycrystalline structure were obtained via a direct one-step chemical approach using Ag acetate as Ag doping source. Agdoped Ca aluminate is composed of orthorhombic Ca 5 Al 6 O 14 and monoclinic CaAl 2 O 4 phases. The morphology transformation of Ag-doped Ca aluminate from nanoflakes to microscale and nanoscale particles closely depends on Ag dopant content. Ag doping effectively improves visible-light absorption ability and 8 wt% Ag-doped Ca aluminate exhibits the lowest band gap of 1.97 eV. Ag-doped Ca aluminate shows enhanced visible-light photocatalytic activity towards gentian violet than un-doped Ca aluminate under natural sunlight irradiation. 20 mL gentian violet solution (10 mg L −1 ) is totally degraded using 20 mg of 8 wt% Ag-doped Ca aluminate with sunlight irradiation for 30 min and reaction rate constant k of 0.034 min −1 . Visible-light photocatalytic activity is greatly enhanced by Ag doping owing to narrow band gap, low recombination efficiency of charge carriers, high charge transfer efficiency.

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