A novel ternary nano-composite with a high photocatalyitic activity: Characterization, effect of calcination temperature and designing the experiments

A comprehensive study on removal of cadmium from aqueous solution by using mesoporous SBA-15 functionalized by 1,5-diphenyl carbazide: experimental design, kinetic, thermodynamic, and isotherm aspects

“…The predicted R 2 , which is calculated by the software and is close to 1 (0.9976) and is in good agreement with the adjusted R 2 (0.9990), indicates that the response surface quadratic model is quite adequate for predicting the sorption process. Furthermore, the adequate precision value related to the signal-tonoise ratio is higher than 4.0 (166.36), indicating the desirability of the model [65,70,71]. Additionally, the coefficient of variance is 1.13, confirming the validity of the data and the model.…”

Bio-based Au Doping with Dominant Oxygen Vacancies and Ti3+ Defects on Photocatalytic Functionalities of TiO2

“…A smaller arc radius in the fitted Nyquist's plot signifies lower charge transfer resistance and better charge transfer efficiency of Au 1.00 /TiO 2 (bio). 56 In the dark, R ct of Au 0.00 /TiO 2 (bare) and Au 1.00 /TiO 2 (bio) were found to be 15.60, and 5.77 kΩ, respectively. Au 1.00 /TiO 2 (bio) exhibited a lower R ct of 4.05 kΩ than Au 0.00 /TiO 2 (bare) with a R ct value of 14.5 kΩ under light irradiation.…”

Chemistry of iron and copper co-doped zinc oxide: reduction and degradation of pollutants

“…Increasing the calcination temperature and time promotes the aggregation of NPs. 39 This aggregation behaviour of NPs with respect to increasing temperature and time is due to their greater surface energy compared to the bulk. 40 Fig.…”