Enhancing deep visible-light photoelectrocatalysis with a single solid-state synthesis: Carbon nitride/TiO 2 heterointerface.

Autor: Silva IF; Department of Colloid Chemistry, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany., Pulignani C; Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, United Kingdom., Odutola J; Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, Tampere, 33101 Finland., Galushchinskiy A; Department of Colloid Chemistry, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany., Teixeira IF; Department of Colloid Chemistry, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany; Department of Chemistry, Federal University of São Carlos, 13565-905, São Carlos, SP, Brazil., Isaacs M; HarwellXPS, Research Complex at Harwell, Rutherford Appleton Lab, Didcot OX11 0FA, United Kingdom; Department of Chemistry, University College London, 20 Gower Street, London, WC1H 0AJ, United Kingdom., Mesa CA; Institute of Advanced Materials (INAM), University Jaume I, 12006 Castello de la Plana, Spain., Scoppola E; Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany., These A; Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058 Erlangen, Germany; Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen Graduate School in Advanced Optical Technologies (SAOT), Paul-Gordan-Str. 6, 91052 Erlangen, Germany., Badamdorj B; Department of Colloid Chemistry, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany., Ángel Muñoz-Márquez M; Chemistry Division, School of Science and Technology, University of Camerino, Via Madonna delle Carceri, Italy., Zizak I; Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany., Palgrave R; HarwellXPS, Research Complex at Harwell, Rutherford Appleton Lab, Didcot OX11 0FA, United Kingdom; Department of Chemistry, University College London, 20 Gower Street, London, WC1H 0AJ, United Kingdom., Tarakina NV; Department of Colloid Chemistry, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany., Gimenez S; Institute of Advanced Materials (INAM), University Jaume I, 12006 Castello de la Plana, Spain., Brabec C; Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058 Erlangen, Germany; Helmholtz-Institute Erlangen-Nürnberg (HI ERN), Immerwahrstraße 2, 91058 Erlangen, Germany., Bachmann J; Chemistry of Thin Film Materials, IZNF, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 3, 91058 Erlangen, Germany., Cortes E; Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, Königinstraße 10, 80539, München, Germany., Tkachenko N; Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, Tampere, 33101 Finland., Savateev O; Department of Colloid Chemistry, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany., Jiménez-Calvo P; Department of Colloid Chemistry, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany; Chemistry of Thin Film Materials, IZNF, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 3, 91058 Erlangen, Germany; Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, Königinstraße 10, 80539, München, Germany. Electronic address: pablo.jimenez-calvo@mpikg.mpg.de.
Jazyk: angličtina
Zdroj: Journal of colloid and interface science [J Colloid Interface Sci] 2025 Jan 15; Vol. 678 (Pt B), pp. 518-533. Date of Electronic Publication: 2024 Sep 06.
DOI: 10.1016/j.jcis.2024.09.028
Abstrakt: Visible-light responsive, stable, and abundant absorbers are required for the rapid integration of green, clean, and renewable technologies in a circular economy. Photoactive solid-solid heterojunctions enable multiple charge pathways, inhibiting recombination through efficient charge transfer across the interface. This study spotlights the physico-chemical synergy between titanium dioxide (TiO 2 ) anatase and carbon nitride (CN) to form a hybrid material. The CN(10%)-TiO 2 (90%) hybrid outperforms TiO 2 and CN references and literature homologs in four photo and photoelectrocatalytic reactions. CN-TiO 2 achieved a four-fold increase in benzylamine conversion, with photooxidation conversion rates of 51, 97, and 100 % at 625, 535, and 465 nm, respectively. The associated energy transfer mechanism was elucidated. In photoelectrochemistry, CN-TiO 2 exhibited 23 % photoactivity of the full-spectrum measurement when using a 410 nm filter. Our findings demonstrate that CN-TiO 2 displayed a band gap of 2.9 eV, evidencing TiO 2 photosensitization attributed to enhanced charge transfer at the heterointerface boundaries via staggered heterojunction type II.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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