Enhanced photocatalytic performance of magnesium-lithium co-doped BiVO₄ and its degradation of methylene blue

Nayoung Kim (김나영); Hyeonjin Kim (김현진); Jiyu Lee (이지유); Seog-Young Yoon (윤석영)

doi:10.6111/JKCGCT.2023.33.4.132

Enhanced photocatalytic performance of magnesium-lithium co-doped BiVO₄ and its degradation of methylene blue

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2023, 33(4), pp.132-138
DOI : 10.6111/JKCGCT.2023.33.4.132
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering
Received : June 5, 2023
Accepted : June 29, 2023
Published : August 31, 2023

Nayoung Kim ¹, Hyeonjin Kim ¹, Jiyu Lee ², Seog-Young Yoon ¹

¹부산대학교
²독립연구자

Accredited

ABSTRACT

Doped and undoped-BiVO₄ samples with different elements (Li, Mg) and amounts were synthesized with a hydrothermal method. The synthesized samples were characterized using various techniques including X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-Vis diffusion reflectance spectroscopy (UV-Vis DRS), andphotoluminescence (PL) spectroscopy. Photocatalytic activity of the samples was evaluated by measuring the degradation of methyl blue (MB) under visible light irradiation. The results indicated that the incorporation of Mg and Li into BiVO₄ caused lattice distortion, the presence of surface hydroxyl groups, a narrower band gap, and a reduced recombination ratio of photo-induced electron-hole pairs. Notably, the photocatalytic activity of Mg5%–Li5% co-doped BiVO₄ sample exhibited a significant improvement compared to that of undoped BiVO₄ sample.

KEYWORDS

BiVO₄, Photocatalytic activity, Co-doping, Energy band gap, Electron-hole recombination

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Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Enhanced photocatalytic performance of magnesium-lithium co-doped BiVO₄ and its degradation of methylene blue

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* References for papers published after 2023 are currently being built.

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Enhanced photocatalytic performance of magnesium-lithium co-doped BiVO₄ and its degradation of methylene blue

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