Preparation and Characterization of CdS/SnO2 Nanoparticles as Catalyst-degraded Products
نویسندگان
1 Health and Medical Techniques College-Baghdad, Iraq
2 College of Health and Medical Techniques, Al-Furat Al-Awsat Technical University, 54001 An-Najaf, Iraq
3 College of Medical Technology, The Islamic University, Najaf, Iraq
4 Department of Chemistry, College of Science, Mustansiriyha University, Baghdad, Iraq
5 Al-Turath University, Baghdad. Iraq
doi
10.22036/pcr.2025.530917.2698چکیده
CdS/SnO2 nanoparticles were synthesized via the sol–gel method using thioglycerol as a complexing agent. The effects of CdS/SnO2 nanoparticle concentration, initial concentration of p-nitrotoluene, pH, and temperature were determined. The nanoparticles were characterized by using UV–visible reduction spectroscopy, atomic force microscopy technique (AFM), and scanning electron microscopy (SEM). Doping of CdS nanoparticles with SnO2 lead to alteration in electronic, absorption and has a band gap of 4.1 eV. The average diameter of particles and average roughness of CdS/SnO2 are (93.83 and 5.99) nm .The particle size measured by spectral techniques was approximately 40 nm. The photo degradation of p-nitrotoluene was noticed, and the kinetic studies indicated a reaction to pseudo-first-order and a decrease in rate reaction with rising initial concentration for p-nitrotoluene. The rate of photo degradation decreased when the concentration of CdS/SnO2 nanoparticles exceeded 0.075 g L−1.
