Nanoscale Engineering of Si/BDD/TiO2 heterostructure interfaces to enhance photoelectrochemical performance
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2025-05-05 |
| Journal | Applied Surface Science Advances |
| Authors | Miroslav BehĆŗl, MariĆ”n Marton, AleÅ” ChvĆ”la, Pavol Michniak, Michal Pifko |
| Citations | 1 |
Abstract
Section titled āAbstractāThe photocatalytic efficiency of BDD/TiO2 photoelectrodes is enhanced by increased electrical fields due to nanostructuring of their interfaces. The interfaces of Si/BDD/TiO2 heterostructure electrodes were engineered at the nanoscale, combining microstructuring of the Si substrate with nanostructuring of the boron-doped diamond (BDD) film. The hierarchical design increased the generated photocurrent by 6.5 times compared to ITO/TiO2 electrodes and 4.6 times compared to unstructured BDD/TiO2 electrodes. Both micro- and nanostructuring also lowered the threshold potential for photocurrent onset by 0.2 V, and nanostructuring also delayed photocurrent decay at higher applied potentials. The enhancement is related to a novel finding concerning the electrical field enhancement effect at the tip-like structured interfaces, which greatly improves the charge transfer through the heterostructure. In addition, the structured electrodes showed significant improvements in stability and resistance to delamination, making them highly competitive with state-of-the-art BDD/TiO2 photoelectrodes for water treatment and hydrogen production applications.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2022 - A comprehensive review on sources, analysis and toxicity of environmental pollutants and its removal methods from water environment [Crossref]
- 2021 - Critical review on hazardous pollutants in water environment: occurrence, monitoring, fate, removal technologies and risk assessment [Crossref]
- 2017 - Monitoring of micropollutants and resistant bacteria in wastewater and their effective removal by boron doped diamond electrode [Crossref]
- 2019 - Hospital wastewaters treatment: fenton reaction vs. BDDE vs. ferrate(VI) [Crossref]
- 2023 - Advanced oxidation processes for removal of organic micropollutants from wastewater [Crossref]
- 2021 - New trends on photoelectrocatalysis (PEC): nanomaterials, wastewater treatment and hydrogen generation [Crossref]
- 2020 - Nanostructured boron doped diamond enhancing the photoelectrochemical performance of TiO2/BDD heterojunction anodes [Crossref]
- 2013 - Electrocatalytic and photocatalytic activity of Pt-TiO2 films on boron-doped diamond substrate [Crossref]
- 2003 - Bandgap studies on anatase titanium dioxide nanoparticles [Crossref]
- 2015 - Intrinsic photocatalytic assessment of reactively sputtered TiO2 films [Crossref]