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測量應(yīng)用案例-20191202

來源:美國布魯克海文儀器公司   2019年12月09日 15:10  
 文獻(xiàn)名:Evaluation of photocatalytic performance for novel Cr2S3–SiO2 nano-catalyst: optimization, quenching, antimicrobial studies 

 

作者Ali Fakhri, Alireza Feizbakhsh1, Elaheh Konoz and Ali Niazi  

Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran

 

摘要:In this study, The Cr2S3 which incorporated SiO2 was synthesized by ultrasonic sol-gel method. In this sense, the mutagenic dyes were removed by the Cr2S3–SiO2 nanocomposites under UV light. The structure of the prepared catalyst was evaluated by x-ray diffraction and photoelectron spectroscopy. The morphology of the nanomaterial was studied by scanning electron microscopy-EDS and dynamic light scattering. In order to evaluate the band gap energy, the Cr2S3–SiO2 nanocomposites were analyzed by diffuse reflectance spectroscopy (DRS). The crystallite size and band-gap values of Cr2S3-SiO2-1 were 37.11 nm, and 2.9 eV, respectively. The activity of Cr2S3–SiO2 nanocomposites demonstrated the exceptional performance in the Disperse Blue 291 and Dispersed Violet 93 dyes degradation after 50 min at pH: 10 under UV light illumination. The result demonstrates that the quencher does not have an influence on photo-degradation of the Disperse Blue 291 and Dispersed Violet 93 dyes. The antimicrobial data of Cr2S3–SiO2 were studied and the results show that the Cr2S3–SiO2 has fungicidal and bactericidal attributes.

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