Strategies for enhanced CWPO of phenol solutions

Natural diatomites: Efficient green catalyst for Fenton-like oxidation of Orange II

“…In this case, the TOC conversion maintained almost constant after the first two hours of reaction, which is related to the H 2 O 2 evolution; the oxidant was almost consumed after 120 min. The H 2 O 2 decomposition increased with larger catalyst concentrations as pointed out by several authors [33,80,81].…”

“…. This could be due to the parasitic reactions promoted by the excess of catalyst [32,33,79,80]. In this case, the TOC conversion maintained almost constant after the first two hours of reaction, which is related to the H 2 O 2 evolution; the oxidant was almost consumed after 120 min.…”

Kinetics of wet peroxide oxidation of phenol with a gold/activated carbon catalyst

“…Efficient consumption of hydrogen peroxide is of main concern in CWPO processes [8,[13][14][15][16]. It is crucial to establish the operating conditions allowing to minimize parasitic reactions that consume Å OH and Å OOH radicals to produce oxygen, a non-effective species under the range of working conditions commonly used in CWPO.…”

Catalytic Activity of Cu/SBA‐15 for Peroxidation of Pyridine Bearing Wastewater at Atmospheric Condition

“…It is well known that conversion of H 2 O 2 molecules into hydroxyl radicals greatly promotes the degradation of organic compounds. 42 The active phase of transition metal ion reacts with H 2 O 2 , via reactions 4-6, leading to formation of peroxy radical (HO 2 2 ) and hydroxyl radical (HO • ) which have high oxidation potential. 11 However, excess amount of active phase of copper on the catalyst also converts peroxy radical (HO 2 2 ) to nascent oxygen by reaction 7.…”