{"title":"用钯纳米颗粒装饰 g-C3N4 纳米片通过光催化转化生物质产生氢气","authors":"Chinnu R Thara , Priyanka S. Walko , Beena Mathew","doi":"10.1016/j.renene.2024.120811","DOIUrl":null,"url":null,"abstract":"<div><p>Fossil fuel depletion and environmental toxins have made photocatalytic H<sub>2</sub> production of paramount significance. A novel and unique technique for producing sustainable H<sub>2</sub> and valorizing biomass using infinite solar energy is biomass photoreformation. Nevertheless, this environmentally friendly method is usually linked to severe reaction circumstances, insufficient selectivity, and restricted biomass conversion. Here, we present a novel one-pot photoreformation technique over porous g-C<sub>3</sub>N<sub>4</sub> nanosheets surface-modified with Pd nanoparticles to convert <span>d</span>-glucose to H<sub>2</sub>. By stacking the g-C<sub>3</sub>N<sub>4</sub> photocatalyst into a 2D nanosheet structure, some of its inherent drawbacks can be mitigated. Furthermore, the inclusion of noble metal nanoparticles in these g-C<sub>3</sub>N<sub>4</sub> nanosheet structures could significantly boost existing photocatalytic activity. The majority of solar radiation is composed of visible light, which makes up 45% of it, and ultraviolet light, which makes up 5%. Therefore, our focus has been on utilizing abundant visible light to facilitate biomass reformation. After 4 h of continuous irradiation, our composite photocatalyst exhibited exceptional visible light activity; its H<sub>2</sub> evolution was 1839.84 μmolg<sup>−1</sup>h<sup>−1</sup>, or about 27 times higher than that of undoped g-C<sub>3</sub>N<sub>4</sub> nanosheets. The effectiveness of three different Pd loadings on g-C<sub>3</sub>N<sub>4</sub> nanosheets for glucose reforming was examined. In the quest for an improved H<sub>2</sub> evolution visible light active photocatalyst, g-C<sub>3</sub>N<sub>4</sub> nanosheets made at various pyrolysis temperatures loaded with optimized Pd weight percentage were also examined.</p></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":null,"pages":null},"PeriodicalIF":9.0000,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Hydrogen evolution via photocatalytic reforming of biomass with palladium nanoparticles decorated g-C3N4 nanosheets\",\"authors\":\"Chinnu R Thara , Priyanka S. Walko , Beena Mathew\",\"doi\":\"10.1016/j.renene.2024.120811\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Fossil fuel depletion and environmental toxins have made photocatalytic H<sub>2</sub> production of paramount significance. A novel and unique technique for producing sustainable H<sub>2</sub> and valorizing biomass using infinite solar energy is biomass photoreformation. Nevertheless, this environmentally friendly method is usually linked to severe reaction circumstances, insufficient selectivity, and restricted biomass conversion. Here, we present a novel one-pot photoreformation technique over porous g-C<sub>3</sub>N<sub>4</sub> nanosheets surface-modified with Pd nanoparticles to convert <span>d</span>-glucose to H<sub>2</sub>. By stacking the g-C<sub>3</sub>N<sub>4</sub> photocatalyst into a 2D nanosheet structure, some of its inherent drawbacks can be mitigated. Furthermore, the inclusion of noble metal nanoparticles in these g-C<sub>3</sub>N<sub>4</sub> nanosheet structures could significantly boost existing photocatalytic activity. The majority of solar radiation is composed of visible light, which makes up 45% of it, and ultraviolet light, which makes up 5%. Therefore, our focus has been on utilizing abundant visible light to facilitate biomass reformation. After 4 h of continuous irradiation, our composite photocatalyst exhibited exceptional visible light activity; its H<sub>2</sub> evolution was 1839.84 μmolg<sup>−1</sup>h<sup>−1</sup>, or about 27 times higher than that of undoped g-C<sub>3</sub>N<sub>4</sub> nanosheets. The effectiveness of three different Pd loadings on g-C<sub>3</sub>N<sub>4</sub> nanosheets for glucose reforming was examined. In the quest for an improved H<sub>2</sub> evolution visible light active photocatalyst, g-C<sub>3</sub>N<sub>4</sub> nanosheets made at various pyrolysis temperatures loaded with optimized Pd weight percentage were also examined.</p></div>\",\"PeriodicalId\":419,\"journal\":{\"name\":\"Renewable Energy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.0000,\"publicationDate\":\"2024-06-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Renewable Energy\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0960148124008796\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Renewable Energy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0960148124008796","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Hydrogen evolution via photocatalytic reforming of biomass with palladium nanoparticles decorated g-C3N4 nanosheets
Fossil fuel depletion and environmental toxins have made photocatalytic H2 production of paramount significance. A novel and unique technique for producing sustainable H2 and valorizing biomass using infinite solar energy is biomass photoreformation. Nevertheless, this environmentally friendly method is usually linked to severe reaction circumstances, insufficient selectivity, and restricted biomass conversion. Here, we present a novel one-pot photoreformation technique over porous g-C3N4 nanosheets surface-modified with Pd nanoparticles to convert d-glucose to H2. By stacking the g-C3N4 photocatalyst into a 2D nanosheet structure, some of its inherent drawbacks can be mitigated. Furthermore, the inclusion of noble metal nanoparticles in these g-C3N4 nanosheet structures could significantly boost existing photocatalytic activity. The majority of solar radiation is composed of visible light, which makes up 45% of it, and ultraviolet light, which makes up 5%. Therefore, our focus has been on utilizing abundant visible light to facilitate biomass reformation. After 4 h of continuous irradiation, our composite photocatalyst exhibited exceptional visible light activity; its H2 evolution was 1839.84 μmolg−1h−1, or about 27 times higher than that of undoped g-C3N4 nanosheets. The effectiveness of three different Pd loadings on g-C3N4 nanosheets for glucose reforming was examined. In the quest for an improved H2 evolution visible light active photocatalyst, g-C3N4 nanosheets made at various pyrolysis temperatures loaded with optimized Pd weight percentage were also examined.
期刊介绍:
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