Tsholofelo I. Sebokolodi, Dimpo S. Sipuka, Kehinde D. Jayeola, Omotayo A. Arotiba
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Electrochemical impedance spectroscopy, chronoamperometry, photoluminescence, and Mott-Schottky were used to study the electrochemical and photoelectrocatalytic properties of the pristine and heterojunction photoanodes. The Bi<sub>2</sub>WO<sub>6</sub>/ZnFe<sub>2</sub>O<sub>4</sub> showed enhanced electro and photocatalytic properties deduced from the lowest charge transfer resistance and highest photocurrent response. The high degradation of the pollutant at the heterojunction was attributed to the type-(II) mechanism that allowed direct oxidation of the pollutant by the holes. The Bi<sub>2</sub>WO<sub>6</sub>/ZnFe<sub>2</sub>O<sub>4</sub> heterojunction demonstrated excellent stability and reusability up to seven cycles. This work is a demonstration of the effect of heterojunction photoanode formation on the performance of PEC in the removal of organic pollutants in water.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 2024","pages":"2169 - 2188"},"PeriodicalIF":2.6000,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10008-025-06241-0.pdf","citationCount":"0","resultStr":"{\"title\":\"Preparation and characterisation of a Bi2WO6/ZnFe2O4 heterojunction photoanode for photoelectrocatalytic degradation of ciprofloxacin in water\",\"authors\":\"Tsholofelo I. Sebokolodi, Dimpo S. Sipuka, Kehinde D. Jayeola, Omotayo A. 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The Bi<sub>2</sub>WO<sub>6</sub>/ZnFe<sub>2</sub>O<sub>4</sub> showed enhanced electro and photocatalytic properties deduced from the lowest charge transfer resistance and highest photocurrent response. The high degradation of the pollutant at the heterojunction was attributed to the type-(II) mechanism that allowed direct oxidation of the pollutant by the holes. The Bi<sub>2</sub>WO<sub>6</sub>/ZnFe<sub>2</sub>O<sub>4</sub> heterojunction demonstrated excellent stability and reusability up to seven cycles. 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Preparation and characterisation of a Bi2WO6/ZnFe2O4 heterojunction photoanode for photoelectrocatalytic degradation of ciprofloxacin in water
Towards understanding the effect of light and voltage on a Bi2WO6/ZnFe2O4 heterojunction photoanode for use in wastewater treatment, we report the synthesis and application of a Bi2WO6/ZnFe2O4 heterojunction for the degradation of ciprofloxacin in synthetic and real wastewater. The pristine and heterojunction semiconductors were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, UV–Vis diffuse reflectance spectroscopy, photoluminescence, and transmission electron microscopy. Electrochemical impedance spectroscopy, chronoamperometry, photoluminescence, and Mott-Schottky were used to study the electrochemical and photoelectrocatalytic properties of the pristine and heterojunction photoanodes. The Bi2WO6/ZnFe2O4 showed enhanced electro and photocatalytic properties deduced from the lowest charge transfer resistance and highest photocurrent response. The high degradation of the pollutant at the heterojunction was attributed to the type-(II) mechanism that allowed direct oxidation of the pollutant by the holes. The Bi2WO6/ZnFe2O4 heterojunction demonstrated excellent stability and reusability up to seven cycles. This work is a demonstration of the effect of heterojunction photoanode formation on the performance of PEC in the removal of organic pollutants in water.
期刊介绍：
The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry.
The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces.
The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis.
The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.
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