Synthesis of a ternary Bi₂O₃/CQDs/rGO photocatalyst to active peroxymonosulfate for the removal of tetracycline hydrochloride

Abstract

In this paper, the ternary Bi2O3/carbon quantum dots (CQDs)/reduced graphene oxide (rGO) photocatalyst was synthesized by hydrothermal method for the degradation of tetracycline hydrochloride. The Bi2O3/CQDs/rGO composites showed stronger visible...

A 1D/2D Bi2O3/g-C3N4 step-scheme photocatalyst to activate peroxymonosulfate for the removal of tetracycline hydrochloride: insight into the mechanism, reactive sites, degradation pathway and ecotoxicity

“…1, the crystal structures of Bi 2 O 3 , g-C 3 N 4 and BO/CN were determined by XRD. The diffraction peaks of two samples can easily correspond with Bi 2 O 3 , which were in agreement with the standard card (JCPDS Card number: 71-2274, P 21/ c (14) space group) with major peaks at 2 θ = 25.7°, 26.8°, 27.4°, 33.3° and 46.3° corresponding to the diffractions of (002), (−112), (−121), (−202) and (040), respectively, 40 which indicated that Bi 2 O 3 was obtained. The two main diffraction peaks of g-C 3 N 4 were observed at position 2 θ = 13.2° and 27.5°, corresponding to the (100) and (002) plane, respectively.…”