Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production
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| Natura: | Artículo Open Access |
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Wiley
2025
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| _version_ | 1867002754907504640 |
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| author | Ying Pan Luocheng Liao Xinwen Zhang Yunya Liu Ran Su Nieves López‐Salas |
| author_facet | Ying Pan Luocheng Liao Xinwen Zhang Yunya Liu Ran Su Nieves López‐Salas Ying Pan Luocheng Liao Xinwen Zhang Yunya Liu Ran Su Nieves López‐Salas |
| collection | Wiley Open Access |
| contents | Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production Ying Pan Luocheng Liao Xinwen Zhang Yunya Liu Ran Su Nieves López‐Salas ChemSusChem Driven by the urgent need for a green, safe, and cost‐effective approach to producing H 2 and H 2 O 2 —both highly valuable in green energy and environmental protection fields—piezocatalysis, which converts mechanical energy into valuable chemicals, has emerged as a promising solution. However, current catalyst systems face challenges due to the need for materials with both a strong piezoelectric effect and favorable catalytic activity. Herein, the construction of an oxidized carbon nitride ( g ‐C 3 N 4 ) matrix anchored with TiO 2 nanoparticles via alkaline hydrothermal treatment is reported. Under ultrasonication, the g ‐C 3 N 4 /TiO 2 composite exhibits optimal performance under carefully controlled alkaline hydrothermal conditions. With a low concentration of Ba(OH) 2 during hydrothermal treatment, Ba(OH) 2 provides an alkaline medium, oxidizing the g ‐C 3 N 4 species and introducing structural defects into the g ‐C 3 N 4 framework. The disruption of the g ‐C 3 N 4 matrix, along with its interaction with TiO 2 nanoparticles, enhances the piezoelectric effect. Consequently, the oxidized g ‐C 3 N 4 /TiO 2 composite achieves a remarkable H 2 production rate of 4427.2 μmol g −1 and an H 2 O 2 production rate of 809.3 μmol g −1 within 1 h without the addition of any sacrificial agents or cocatalysts. This work presents an effective strategy for the structural optimization of g ‐C 3 N 4 ‐based materials and may inspire new approaches for designing advanced piezocatalysts. 10.1002/cssc.202500980 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1002/cssc.202500980 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_cssc_202500980 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production Ying Pan Luocheng Liao Xinwen Zhang Yunya Liu Ran Su Nieves López‐Salas ChemSusChem Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production Ying Pan Luocheng Liao Xinwen Zhang Yunya Liu Ran Su Nieves López‐Salas ChemSusChem Driven by the urgent need for a green, safe, and cost‐effective approach to producing H 2 and H 2 O 2 —both highly valuable in green energy and environmental protection fields—piezocatalysis, which converts mechanical energy into valuable chemicals, has emerged as a promising solution. However, current catalyst systems face challenges due to the need for materials with both a strong piezoelectric effect and favorable catalytic activity. Herein, the construction of an oxidized carbon nitride ( g ‐C 3 N 4 ) matrix anchored with TiO 2 nanoparticles via alkaline hydrothermal treatment is reported. Under ultrasonication, the g ‐C 3 N 4 /TiO 2 composite exhibits optimal performance under carefully controlled alkaline hydrothermal conditions. With a low concentration of Ba(OH) 2 during hydrothermal treatment, Ba(OH) 2 provides an alkaline medium, oxidizing the g ‐C 3 N 4 species and introducing structural defects into the g ‐C 3 N 4 framework. The disruption of the g ‐C 3 N 4 matrix, along with its interaction with TiO 2 nanoparticles, enhances the piezoelectric effect. Consequently, the oxidized g ‐C 3 N 4 /TiO 2 composite achieves a remarkable H 2 production rate of 4427.2 μmol g −1 and an H 2 O 2 production rate of 809.3 μmol g −1 within 1 h without the addition of any sacrificial agents or cocatalysts. This work presents an effective strategy for the structural optimization of g ‐C 3 N 4 ‐based materials and may inspire new approaches for designing advanced piezocatalysts. 10.1002/cssc.202500980 http://creativecommons.org/licenses/by/4.0/ |
| title | Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production |
| topic | ChemSusChem |
| url | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.202500980 |