Electrochemical degradation of tetracycline hydrochloride in sulfate solutions on boron-doped diamond electrode: The accumulation and transformation of persulfate

Blue Hierarchical TiO2 Nanotube Array for Significantly Enhanced Electrochemical Oxidation Performance and Stability of Tetracycline Degradation

“…Then the degradation process of TC under different Na 2 SO 4 concentrations was analyzed. Compared to the NaNO 3 solution, the Na 2 SO 4 solution with the same conductivity demonstrated a marginal increase in TC degradation ratio, indicating that the prepared anode could activate SO 4 2– in the Na 2 SO 4 solution and then generate SO 4 •– (Figure S3), which was proved in previous works. , As shown in Figure d, the degradation ratios of TC were 90.12%, 90.62%, 91.94%, and 92.44% within 60 min, corresponding to 0.25, 0.50, 0.75, and 1.0 mol L –1 of Na 2 SO 4 solution, respectively. Consistently, the degradation kinetic constant ( k ) also slightly rose from 0.0390 to 0.0431 min –1 (Figure e).…”

“…When a higher current density is applied, more • OH and SO 4 •– would generate compared to a lower current density; therefore, the degradation efficiency would be enhanced . Meanwhile, more SO 4 •– and SO 4 2– in solution would transform into the S 2 O 8 2– with lower electrochemical activity, leading to a decrease of SO 4 •– contribution. ,, …”

“…•− remarkably increased from 25.72% to 45.94%, the degradation performance was barely enhanced with increasing Na 2 SO 4 concentration (Figure 3f) 72 with the increase of SO 4…”

“…•− existed in a high Na 2 SO 4 concentration solution, it had a minor effect on the TC removal ratio. 72,77 Ultimately, once added to the degrading system, the removal performance on the fabricated anode would be steadily effective for actual wastewater containing a wide range of sulfate concentrations.…”

Tetracycline degradation mechanism of peroxymonosulfate activated by oxygen-doped carbon nitride

“…The long-term accumulation of antibiotics in water bodies can cause pathogenic microorganisms to build resistance to them, which poses a serious threat to human health. 3 Therefore, TC degradation from water bodies is a significant issue. An approach that has received increasing research attention is the advanced oxidation of persulfates based on sulfate radicals (SO 4 ˙ − ) and hydroxyl radicals (·OH).…”