Work

Degradation of tetracycline hydrochloride by electrocatalytic oxidation using NiO@Co3O4/Ti electrode

Year: 2024

Type: article

Abstract: Tetracycline hydrochloride (TC-H) belongs to a class of broad-spectrum antibiotics and is difficult to remove from the environment, posing potential hazards to human health as well as the aquatic environment. In this paper, NiO@Co 3 O 4 /Ti, a dimensionally stable anode with NiO as the core and Co 3 O 4 as the shell, was synthesized using a hydrothermal method . XRD , XPS , and SEM were conducted for characterization, revealing a constant charge transfer between Ni and Co, with mainly trivalent Co acting as the oxidant. The electrochemical characterization showed that the NiO@Co 3 O 4 /Ti electrode had a high oxygen evolution potential and low charge transfer resistance. Furthermore, 94.26 % of TC-H (100 mg/L) was degraded in 60 min under the optimal operating conditions (voltage of 10 V, 0.25 M NaCl, pH 7.88). According to radical quenching experiments, the active species O 2 − played an important role in the electrocatalytic oxidation process . In addition, the electrode maintained good stability after several degradation experiments.

Source: Journal of Water Process Engineering

DOI: 10.1016/j.jwpe.2024.105242

Authors: Minqin Shi, Hongfu Wang, Peiqing Yuan, Xinru Xu, Jingyi Yang

Institutions: East China University of Science and Technology, State Key Laboratory of Chemical Engineering

Language: English

Topic: Advanced oxidation water treatment

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: hybrid

Estimated APC paid: $3,420