An approach to estimating photocatalytic activity of TiO2 suspension by monitoring dissolved oxygen and superoxide ion on decomposing organic compounds

Effect of dissolved oxygen concentration and light intensity on photocatalytic degradation of phenol

“…(6) may be accounted for in the following manner [2,[22][23][24] (10) Hence, Eq. (8) maybe written for the entire course of reaction as (11) Integrating Eq. (11) we get,…”

“…Stafford et al [10] found that at high irradiation intensities, initial rate of dissolved oxygen consumption increases linearly with increase in TiO 2 concentration. Hirakawa et al [11] have experimentally shown that the rate of decrease in concentration of disKorean J. Chem. Eng.(Vol.…”

Analysis of Photocatalytic Reactions Using a TiO2 Immobilized Microreactor

“…Several types of radical species are known to be involved in the reaction, and their lifetime depends on conditions such as solution pH and temperature. [5][6][7][8] Photocatalytic processes are classified into direct [9][10][11][12] and secondary [13][14][15] reactions. Direct reactions occur between adsorbed species and photoexcited electrons or holes, while secondary reactions are induced by active oxygen species generated in the solvent after photoexcited electrons and holes react with solvent molecules.…”

A novel process for the removal of aniline from wastewaters

“…Alternatives to membrane systems include oxidation methods based around chemical oxidation and air/oxygen based catalytic (or noncatalytic) oxidation. The first category includes advanced oxidation processes (AOPs) such as the use of ozone, hydrogen peroxide and UV radiation to generate hydroxyl radicals used for oxidation [11][12][13][14]. These processes tend to be limited by their intensive costs.…”

“…Leaching tests undertaken on 0.5% (w/w) Cu-Beta and 1.4% (w/w) Cu-Beta over pH range[1][2][3][4][5][6][7][8][9][10][11] …”