Degradation of highly concentrated organic compounds over a supported Ru–Cu bimetallic catalyst

Abstract

A Ru–Cu/Al–Ti-1 catalyst exhibited efficient performance in the CWAO of organic compounds due to synergistic effects between Ru and Cu.

Preparation of Cu-Loaded Biomass-Derived Activated Carbon Catalysts for Catalytic Wet Air Oxidation of Phenol

“…HO• and other radicals oxidize phenol into smaller molecular intermediates, which are finally oxidized to CO 2 and H 2 O. 61 The formation of radicals is the rate-determining step of the CWAO reaction. Cu + is much more active than Cu 2+ toward the activation of H 2 O 2, 62 and higher content of Cu + can accelerate the redox transformation of Cu + /Cu 2+ , promote the generation of free radicals, and thus increase the phenol and COD conversions.…”

“… Besides, the redox transformation of Cu + /Cu 2+ generates H 2 O 2 (eq ), which would contribute to the production of more radicals. HO· and other radicals oxidize phenol into smaller molecular intermediates, which are finally oxidized to CO 2 and H 2 O . The formation of radicals is the rate-determining step of the CWAO reaction.…”

Activation of O2 over three-dimensional manganese oxide nanoprisms under ambient conditions towards oxidative removal of aqueous organics

“…[27][28][29][30][31][32] However, harsh conditions, such as high temperatures (∼100 °C) and pressures (∼5 MPa), are generally required for realizing a good removal efficiency, which leads to high cost and investment. [33][34][35][36] In recent years, activation of O 2 over advanced catalytic materials under ambient conditions has been developed for the degradation of aqueous emerging contaminants and persistent organic pollutants. 37,38 For example, Wang and co-workers prepared a series of molybdatebased catalysts and hybrids for oxidative degradation of dyes using O 2 as the oxidant under ambient conditions.…”

Treatment of real industrial pharmaceutical wastewater using wet peroxide oxidation

“…[18] The formed intermediates dissociate to CO 2 and H 2 O. [19] Soon after the introduction of oxidant along with the pharmaceutical sample, free radical degradation mechanism prevails for the breakdown of molecules. Initially, the injected oxidant at operated temperature generates highly reactive OH .…”