Heterogeneous and homogeneous photocatalytic degradation of psychoactive drug Fluvoxamine: kinetic study, inorganic ions and phytotoxicity evaluation

Abstract

BACKGROUND Pharmaceutically active compounds, emerging extensively in ecosystems as pollutants, have become an important environmental and public health issue, since they can contaminate drinking water and pose threats to wildlife and human health. As a result, efforts should be made to develop methods to inactivate or eliminate this class of substance in the environment. RESULTS The photocatalytic degradation of psychoactive drug Fluvoxamine has been investigated. In the case of heterogeneous photocatalytic oxidation, the effect of TiO2 P25 concentration (0.1–1 g L‐1), initial concentration of H2O2 (0.25–0.2 g L‐1) and Fe3+ (0.00175–0.014 g L‐1) and pH of the solution on initial reaction rates were evaluated, while for homogeneous photocatalytic oxidation the effect of the amount of H2O2 (0.25–0.2 g L‐1) and Fe3+ (0.00175–0.014 g L‐1) were investigated. In addition, the conversion of the heteroatoms in the FVX molecule to inorganic ions (NO3‐, NH4+, F‐) during the photocatalytic process has been observed and phytotoxicity testing, using three plant species, was carried out in order to examine the effect of photocatalytic oxidation on the toxicity of FVX. CONCLUSION According to the results presented in this study, both heterogeneous and homogeneous photocatalytic oxidation is an efficient methodology for FVX degradation. © 2017 Society of Chemical Industry

A Review of PFAS Destruction Technologies

“…Moreover, in contrast to many other AOP/ARP technologies, photocatalysis can be considered a highly sustainable process due to its low energy consumption and the possibility of consuming green energy. Additionally, the photocatalyst can be recycled [ 87 , 91 ].…”

Sol–gel synthesis of polyacrylamide-stannic arsenate nanocomposite ion exchanger: binary separations and enhanced photo-catalytic activity

“…These are produced in textile industry, incineration of metals, fungicides, insecticides, leather tanning industry, metallurgical industries, mining, automobile emissions, refining of heavy metals, cement and asbestos industries etc. The long-time exposure of heavy metals causes breathing problems, throat and lung irritation, stomach pain, gastrointestinal dysfunction, carcinogenic, endocrine disruptor, mutagenic, lung damage and cancer [6][7][8][9][10][11][12].…”