Photocatalytic Activity of Ag₂S/K₂Ti₄O₉ for Rhodamine B Degradation under Visible Light Illumination

Abstract:

The composite Ag2S/K2Ti4O9 photocatalyst was synthesized via a precipitation method. The structure of the photocatalyst was determined by powder X-ray diffraction, scanning electron microscope. The photocatalytic properties for organic matter degradation of the photocatalyst were examined under visible light irradiation. The results showed that, the sample which synthesized at 25°C via a precipitation route，using nitric acid silver and thiourea as the raw materials in the absence of any surfactants or templates has the highest crystallinity and investigated its catalytic behavior. RhB as degradation object, different dosing quantity of the degradation rate were examined, The best dosing quantity (1000 MgL-1) degradation rate was 18.93%. And with K2Ti4O9 for ontology, the degradation of different load rate were examined, The best load (25%) of the degradation rate is 20.57%. The results revealed the Ag2S potential applications in photocatalytic degradation for organic pollutants.

• Periodical: Advanced Materials Research (Volume 668)
• Pages: 29-32
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.668.29
• Online since: March 2013
• Authors: Wen Quan Cui, Shuang Long Lin, Shan Shan Ma, Li Liu, Ying Hua Liang
• Keywords: Ag₂S/K₂Ti₄O₉, Photocatalysis, Precipitation Method, Rhodamine B (RhB)

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