@article { author = {Hosseinzadeh, Ghader}, title = {Preparation of Nanocomposite of TiO2 Nanoparticles and CuS Nanoflakes for Visible-Light Photocatalytic Decomposition of Nitenpyram Pesticide}, journal = {Advanced Ceramics Progress}, volume = {8}, number = {3}, pages = {22-28}, year = {2022}, publisher = {Materials and Energy Research Center (MERC) Iranian Ceramic Society (ICERS)}, issn = {2423-7477}, eissn = {2423-7485}, doi = {10.30501/acp.2022.364273.1104}, abstract = {In this study, a novel TiO2-CuS heterojunction nanocomposite was prepared from TiO2 anatase nanoparticles and CuS nanoflakes through hydrothermal method and used, for the first time, as a visible-light photocatalyst for decomposition of agricultural insecticide Nitenpyram. Crystallinity, shape, and size of particles, and optical properties of the prepared nanocomposite were investigated using FESEM, XRD, Mott-Schottky, photoluminescence (PL), and UV-Visible spectroscopy analyses. The results indicated that the TiO2-CuS heterojunction nanocomposite was successfully prepared and compared to the pure CuS and TiO2 semiconductors, it exhibited a better photocatalytic performance mainly due to the improvement in optical properties (increasing the ability of visible-light absorbance) and reduction of the photoinduced electron and hole recombination rate. According to the Mott-Schottky analysis and radical scavenger tests, superoxide radical was detected as the major oxidizing agent involved in photocatalytic degradation of Nitenpyram, and a type II charge transfer pathway was suggested to improve the photocatalytic activity.}, keywords = {Nanocomposite,Nitenpyram,photocatalyst,CuS,TiO2}, url = {https://www.acerp.ir/article_160987.html}, eprint = {https://www.acerp.ir/article_160987_1ff0a44ffce0b13b5801e46471cea0fe.pdf} }