Preparation and photocatalytic degradation of Sulfamethoxazole by g-C₃N₄ nano composite samples

Abstract Graphite-carbon nitride (g-C 3 N 4 ) was prepared by thermocondensation, and g-C /BiVO material (GCB) /CNTs composite (GCC) were doping different contents of BiVO carbon nanotubes (CNTs) with samples, respectively. Then, , CNTs, samples doped to prepare ternary (GCBC). In the performance experiment, Sulfamethoxazole (SMZ) used as degradation evaluate photocatalytic reaction kinetics equation, quadric cycle stability free radical capture, intermediates identification studied. The SMZ analyzed high-performance liquid chromatography-mass spectrometry. From experimental data, it can be seen that for solution, when time T = 0 min retention rt 7.53 min, there is a peak corresponding substance m / z [M + H] 254, which judged SMZ. At 20, 40, 60 2.00, 7.06, 9.57 indicating presence in process. Experimental analysis shows are three sample GCBC. this work, kinds materials successfully prepared, variety characterization, pollutants, test (GCB, GCC, GCBC) elucidated cyclic material, active species mechanism.