Effect of TiO2 Morphology on the Properties and Photocatalytic Activity of g-C3N4/TiO2 Nanocomposites Under Visible-Light Illumination DOI Creative Commons

Matevž Roškarič,

Gregor Žerjav, Janez Zavašnik

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(3), P. 460 - 460

Published: Jan. 21, 2025

This study focused on the preparation and investigation of g-C3N4/TiO2 photocatalysts using different TiO2 morphologies (anatase nanoparticles (TPs), poorly crystalline nanotubes (aTTs), well-crystalline anatase nanorods (TRs)) self-synthesized g-C3N4 (CN). The synthesis composites was carried out a mortar mixing technique to weight ratio 1:1. In addition, were annealed in muffle furnace at 350 °C for 2 h air. successful formation composite with mesoporous structure confirmed results XRD, N2 physisorption, FTIR analyses, while microscopic analysis techniques preservation morphology all investigated. UV-Vis DR measurements showed that investigated exhibited visible-light absorption due presence CN. solid-state photoluminescence electrochemical impedance spectroscopy lower charge recombination compared pure For example, transfer resistance (RCT) CNTR/2 TR CN calcined air significantly reduced 0.4 MΩ, 0.9 MΩ 1.0 highest photocatalytic performance materials tested, achieving 30.3% degradation 25.4% mineralization bisphenol A (BPA) dissolved water under illumination. comparison, components achieved BPA rates (between 2.4 11.4%) levels 0.6 7.8%). (i) Ti3+ O-vacancies TR, (ii) enhanced heterojunction formation, (iii) dynamics enabled by dual mixed type-II/Z scheme mechanism.

Language: Английский

Effect of TiO2 Morphology on the Properties and Photocatalytic Activity of g-C3N4/TiO2 Nanocomposites Under Visible-Light Illumination DOI Creative Commons

Matevž Roškarič,

Gregor Žerjav, Janez Zavašnik

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(3), P. 460 - 460

Published: Jan. 21, 2025

This study focused on the preparation and investigation of g-C3N4/TiO2 photocatalysts using different TiO2 morphologies (anatase nanoparticles (TPs), poorly crystalline nanotubes (aTTs), well-crystalline anatase nanorods (TRs)) self-synthesized g-C3N4 (CN). The synthesis composites was carried out a mortar mixing technique to weight ratio 1:1. In addition, were annealed in muffle furnace at 350 °C for 2 h air. successful formation composite with mesoporous structure confirmed results XRD, N2 physisorption, FTIR analyses, while microscopic analysis techniques preservation morphology all investigated. UV-Vis DR measurements showed that investigated exhibited visible-light absorption due presence CN. solid-state photoluminescence electrochemical impedance spectroscopy lower charge recombination compared pure For example, transfer resistance (RCT) CNTR/2 TR CN calcined air significantly reduced 0.4 MΩ, 0.9 MΩ 1.0 highest photocatalytic performance materials tested, achieving 30.3% degradation 25.4% mineralization bisphenol A (BPA) dissolved water under illumination. comparison, components achieved BPA rates (between 2.4 11.4%) levels 0.6 7.8%). (i) Ti3+ O-vacancies TR, (ii) enhanced heterojunction formation, (iii) dynamics enabled by dual mixed type-II/Z scheme mechanism.

Language: Английский

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