Degradation of sulfadiazine in aqueous media by peroxymonosulfate activated with biochar-supported ZnFe₂O₄ in combination with visible light in an internal loop-lift reactor

Abstract

Solid waste resource utilization and the treatment of wastewater are two important aspects in environmental protection.

Photocatalytic degradation of tetracycline hydrochloride by lanthanum doped TiO2@g-C3N4 activated persulfate under visible light irradiation

“…Batch photocatalytic experiments were performed an internal loop-airlift reactor (ALR) which has been described in a previous report. 31 An Xe lamp with a cut-off filter (≥400 nm) (Heraeus-6, 300 W) was used to simulate sunlight and fixed inside a cylindrical quartz tube at room temperature. Firstly, an appropriate amount of catalyst was dispersed into 1.5 L 20 mg L −1 TCH solution with the compressed gas (40 mL min −1 ) from the bottom of the ALR to maintain the catalyst particles circulation throughout the reactor.…”

“…The two characteristic peaks of C 1s exhibited in Fig. 4b at 284.7 eV and 288.4 eV are correspond to the sp 2 carbon (C]C) and the sp 3 C]N bonds of the synthesized g-C 3 N 4 , respectively. 11,38 The N 1s spectrum in Fig.…”

“…Over the past few decades, the widespread and excessive utilization of antibiotics has caused severe serious environmental pollution, [1][2][3] which has been of wide concern due to its risks to human health. Tetracycline hydrochloride (TCH), as one of the extensively used antibiotics for disease prevention and disease cures, has been frequently detected in water environments, such as groundwater, surface water, and even drinking water.…”