Degradation of pharmaceutical contaminants by bubbling gas phase surface discharge plasma combined with g-C₃N₄ photocatalysis

Abstract

The gas phase surface discharge with microporous bubbling was used to evaluate the degradation feasibility of pharmaceutical contaminants. After 25 min treatment, 82% removal of ibuprofen (initial concentration of 60...

Recent advances in removal of pharmaceutical pollutants in wastewater using metal oxides and carbonaceous materials as photocatalysts: a review

“…In view of this, several studies have been made using metal oxide and graphitic material related photocatalysts to make wastewater free from ibuprofen. 293–357…”

“…Hernández-Uresti et al 333 observed the following order for the degradation of different pharmaceutical compounds in aqueous solution (pH ∼ 5.5) using g-C 3 N 4 under UV-vis irradiation: tetracycline (86%) > ciprofloxacin (60%) > ibuprofen (20%). Wang and coworkers 334 undertook investigations on the degradation of pharmaceutical contaminants by bubbling a gas-phase surface discharge plasma combined with g-C 3 N 4 photocatalysis. These findings disclosed 82% and 100% removal of ibuprofen and tetracycline hydrochloride after 25 min, corresponding to initial concentrations of 60 and 200 mg L −1 , respectively.…”

Machine Learning-Assisted Optimization of Microbubble-Enhanced Cold Plasma Activation for Water Treatment

“…33 Wang et al utilized a spiral electrode in a plexiglass cylinder to treat a 2 L solution of pharmaceutical contaminants, incorporating a gas pump and flow meter in a gas-phase surface discharge reactor for the gas supply system. 34 Zhou et al developed a microplasma bubble column reactor in which air from a gas cylinder was ionized in a plasma setup. Such a reactor effectively produces oxidative species, including…”

“…In a paper by Sun et al, a water falling film dielectric barrier discharge system was used for PAW production, where a gas pump facilitated the passage of ambient air through the discharge area at the upper end of a coaxial discharge cylinder, resulting in the treated solution flowing down as a uniform film along the ground electrode . Wang et al utilized a spiral electrode in a plexiglass cylinder to treat a 2 L solution of pharmaceutical contaminants, incorporating a gas pump and flow meter in a gas-phase surface discharge reactor for the gas supply system . Zhou et al developed a microplasma bubble column reactor in which air from a gas cylinder was ionized in a plasma setup.…”

Gas/Liquid Pulsed Discharge Plasma in a Slug Flow Reactor under Pressurized Argon for Dye Decomposition

“…When high-voltage electrons are introduced into a gas/liquid environment, gas molecules or atoms are ionized first to form initial radicals. Then, the generated radicals make contact and react with molecules in the liquid medium via the gas/liquid interface, leading to the generation of various radical species with high reactivity in the liquid phase. − Based on the above advantages, gas/liquid discharge plasma has been applied in various fields, including dye treatment, , degradation of pharmaceutical compounds, , and synthesis of nanomaterials …”