日韩av大片在线观看欧美成人不卡|午夜先锋看片|中国女人18毛片水多|免费xx高潮喷水|国产大片美女av|丰满老熟妇好大bbbbbbbbbbb|人妻上司四区|japanese人妻少妇乱中文|少妇做爰喷水高潮受不了|美女人妻被颜射的视频,亚洲国产精品久久艾草一,俄罗斯6一一11萝裸体自慰,午夜三级理论在线观看无码

 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.