the photocatalytic decolorization of aqueous solutions brown ng, a commercial textile dye, was studied using titana degussa p-25 as a catalyst for the first time. the experiments were carried out in a batch reactor with the use of artificial light sources (uv-c). the effects of various process variables on decolorization performance of the process have been investigated. the photodegradation of...

The term photocatalysis is one amongst several in a quagmire of labels used to describe a photon-driven catalytic process; a simple description of photocatalysis is proposed herein. Other labels such as quantum yield and/or quantum efficiency used in solid/liquid and solid/gas heterogeneous photocatalytic systems to express process efficiencies have come to refer (incorrectly) to the ratio of t...

Photocatalytic removal of organic pollution such as waste colored dyes was a promising technique for environment technique. However, effective photocatalysts were needed to enhance the photocatalytic efficiency. Ag/AgCl was regarded as high performance catalyst for photocatalytic degradation. Ag/AgCl nanoparticles were biochemically prepared with metabolin of living fungi which was used as redu...

The objective of this study was to determine whether ultraviolet-light-emitting diodes (UV-LEDs) could serve as an efficient photon source for heterogeneous photocatalytic oxidation (PCO). An LED module consisting of 12 high-power UV-A (lambda max = 365 nm) LEDs was designed to be interchangeable with a UV-A fluorescent black light blue (BLB) lamp for a bench scale annular reactor packed with s...

Currently, air pollution is being exacerbated by rapid social, economic, and industrial development. Major pollutants include volatile organic compounds (VOCs) CO. Photocatalytic thermocatalytic technology can be used to convert VOCs CO into harmless gases effectively. Recently, photothermal synergistic catalysis has aroused much attention because of its higher performance than those individual...

In this study, ZnO nanoparticles fixed on glass plates were employed as photocatalysts for the degradation of Acid Red 88 (AR88) dye in aquatic solution. ZnO nanoparticles were synthesized through coprecipitation method and fixed on glass plates. X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques were used for characterization of nanoparticle samples. A batch reactor equi...