Journal of Dali University ›› 2021, Vol. 6 ›› Issue (12): 46-50.

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Study on the Preparation and Visible-Light Photocatalyic Activity of Mg2+ Doped AgInS2

  

  1. College of Pharmacy, Dali University, Dali, Yunnan 671000, China
  • Received:2021-04-21 Online:2021-12-15 Published:2022-01-14

Abstract:

Mg-AgInS2 with different ratios of Mg2+ In3+ were prepared by the low temperature liquid method and the morphology structure and optical properties of as-prepared samples were characterized by scanning electron microscopeSEM), fluorescence spectrum X-ray photoelecrton spectroscopyXPS), ultraviolet-visible diffuse reflection spectrometry and X-ray doffractionXRD. The effect of doping Mg2+ amount on the visible-light photocatalytic activity of AgInS2 was investigated through the degradation1 of Rhodamine B RhB under visible light irradiation. The experimental results displayed that Mg2+ was successfully doped into AgInS2 and Mg-AgInS2 with Mg2+ In3+=116 showed the highest photocatalytic activity. The degradation efficiency of RhB by Mg-AgInS2 with the optimal ratio could reach 93% under visible light irradiation for 90 min.

Key words: Mg2+, AgInS2, doping, visible light photocatalysis, Rhodamine B

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