2,4-Dichlorophenoxyacetic acid herbicide photocatalytic degradation by zero-valent iron / titanium dioxide based on activated carbon

摘要: Abstract The sol-gel procedure is applied to prepare zero-valent iron/dioxide titanium nanocomposite based on activated carbon and the characterized by XRF, XRD, FT-IR, BET, FE-SEM EDX analysis. response surface methodology (RSM) of experimental design adopted evaluate effects five operational factors, including 2,4-D initial concentration, irradiation time, pH, ratio hydrogen peroxide concentration performance photocatalytic degradation 2,4-D. An increase in reduces degradation. increased then slightly decreased increasing time concentration. optimum conditions are determined at maximum minimum concentrations peroxide, neutral pH.