Abstract
Activated carbon (AC)/TiO2 was prepared by infiltration of Degussa P25. The AC was obtained from palm kernel shell by chemical activation with H3PO4. The composite particle size is higher than TiO2 particles, because the TiO2 particles are distributed and immobilized on a porous support. The particles size distribution of TiO2 was found to be between 10.5 and 25 nm. The impregnation process introduced changes in the textural properties. As a result, the microporosity percentage was decreased, and the mesoporosity percentage was increased. The results were verified by different techniques such as: Scanning Electronic Microscopy (SEM), X-Ray Diffraction (XRD), UV–vis diffuse reflectance spectroscopy (DRS), and gas adsorption (N2 and CO2). For the textural properties, theoretical models were used such as Non-Local Density Functional (NLDFT) theory, fractal dimension, Dubinin-Radushkevich (DR), and Dubinin-Astakhov (DA) models. The AC has a positive effect in the phenol photodegradation process; that is, the degradation percentage is increased by 40% because of the synergic effect between components of the composite.
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