Mengjun Wang, Jun Jia, Zhaodong Meng, Jing Xia, Xinyan Hu, Fei Xue, Huiping Peng, Xiangmin Meng, Jun Yi, Xiaolan Chen, Jun Li, Yuzheng Guo, Yong Xu, Xiaoqing Huang
{"title":"用于光热将 CH4 转化为 HCHO 并进行治疗的等离子 Pd-Sb 纳米片。","authors":"Mengjun Wang, Jun Jia, Zhaodong Meng, Jing Xia, Xinyan Hu, Fei Xue, Huiping Peng, Xiangmin Meng, Jun Yi, Xiaolan Chen, Jun Li, Yuzheng Guo, Yong Xu, Xiaoqing Huang","doi":"10.1126/sciadv.ado9664","DOIUrl":null,"url":null,"abstract":"<div >Photothermal catalysis effectively increases catalytic activity by using the photothermal effect of metal nanomaterials; however, the combination of strong light absorption and high catalytic performance remains a challenge. Here, we demonstrate hexagonal ~5-nanometer-thick palladium antimony (chemical formula as Pd<sub>8</sub>Sb<sub>3</sub>) nanosheets (NSs) that exhibit strong light absorption within full spectral and localized surface plasmon resonance (LSPR) effects in the visible region. Such LSPR features lead to strong photothermal effects, and Pd<sub>8</sub>Sb<sub>3</sub> NSs aqueous dispersion enables enhanced photothermal methane (CH<sub>4</sub>) conversion to formaldehyde (HCHO) under full-spectrum light irradiation at 1.7 watts per square centimeter, leading to selectivity of ~98.7%, productivity of ~665 millimoles per gram of catalyst, ~700 times higher than that of Pd NSs. Mechanism investigations suggest that different radicals were generated on Pd<sub>8</sub>Sb<sub>3</sub> (·OH) and Pd NSs (·O<sub>2</sub><sup>−</sup>), where Pd<sub>8</sub>Sb<sub>3</sub> NSs displays stronger adsorption strength to CH<sub>4</sub> and facilitates CH<sub>4</sub> oxidation to HCHO. Besides, the strong light absorption ability of Pd<sub>8</sub>Sb<sub>3</sub> NSs enables photothermal therapy for breast cancer.</div>","PeriodicalId":21609,"journal":{"name":"Science Advances","volume":null,"pages":null},"PeriodicalIF":11.7000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.science.org/doi/reader/10.1126/sciadv.ado9664","citationCount":"0","resultStr":"{\"title\":\"Plasmonic Pd-Sb nanosheets for photothermal CH4 conversion to HCHO and therapy\",\"authors\":\"Mengjun Wang, Jun Jia, Zhaodong Meng, Jing Xia, Xinyan Hu, Fei Xue, Huiping Peng, Xiangmin Meng, Jun Yi, Xiaolan Chen, Jun Li, Yuzheng Guo, Yong Xu, Xiaoqing Huang\",\"doi\":\"10.1126/sciadv.ado9664\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div >Photothermal catalysis effectively increases catalytic activity by using the photothermal effect of metal nanomaterials; however, the combination of strong light absorption and high catalytic performance remains a challenge. Here, we demonstrate hexagonal ~5-nanometer-thick palladium antimony (chemical formula as Pd<sub>8</sub>Sb<sub>3</sub>) nanosheets (NSs) that exhibit strong light absorption within full spectral and localized surface plasmon resonance (LSPR) effects in the visible region. Such LSPR features lead to strong photothermal effects, and Pd<sub>8</sub>Sb<sub>3</sub> NSs aqueous dispersion enables enhanced photothermal methane (CH<sub>4</sub>) conversion to formaldehyde (HCHO) under full-spectrum light irradiation at 1.7 watts per square centimeter, leading to selectivity of ~98.7%, productivity of ~665 millimoles per gram of catalyst, ~700 times higher than that of Pd NSs. Mechanism investigations suggest that different radicals were generated on Pd<sub>8</sub>Sb<sub>3</sub> (·OH) and Pd NSs (·O<sub>2</sub><sup>−</sup>), where Pd<sub>8</sub>Sb<sub>3</sub> NSs displays stronger adsorption strength to CH<sub>4</sub> and facilitates CH<sub>4</sub> oxidation to HCHO. Besides, the strong light absorption ability of Pd<sub>8</sub>Sb<sub>3</sub> NSs enables photothermal therapy for breast cancer.</div>\",\"PeriodicalId\":21609,\"journal\":{\"name\":\"Science Advances\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":11.7000,\"publicationDate\":\"2024-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.science.org/doi/reader/10.1126/sciadv.ado9664\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Science Advances\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://www.science.org/doi/10.1126/sciadv.ado9664\",\"RegionNum\":1,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MULTIDISCIPLINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science Advances","FirstCategoryId":"103","ListUrlMain":"https://www.science.org/doi/10.1126/sciadv.ado9664","RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
Plasmonic Pd-Sb nanosheets for photothermal CH4 conversion to HCHO and therapy
Photothermal catalysis effectively increases catalytic activity by using the photothermal effect of metal nanomaterials; however, the combination of strong light absorption and high catalytic performance remains a challenge. Here, we demonstrate hexagonal ~5-nanometer-thick palladium antimony (chemical formula as Pd8Sb3) nanosheets (NSs) that exhibit strong light absorption within full spectral and localized surface plasmon resonance (LSPR) effects in the visible region. Such LSPR features lead to strong photothermal effects, and Pd8Sb3 NSs aqueous dispersion enables enhanced photothermal methane (CH4) conversion to formaldehyde (HCHO) under full-spectrum light irradiation at 1.7 watts per square centimeter, leading to selectivity of ~98.7%, productivity of ~665 millimoles per gram of catalyst, ~700 times higher than that of Pd NSs. Mechanism investigations suggest that different radicals were generated on Pd8Sb3 (·OH) and Pd NSs (·O2−), where Pd8Sb3 NSs displays stronger adsorption strength to CH4 and facilitates CH4 oxidation to HCHO. Besides, the strong light absorption ability of Pd8Sb3 NSs enables photothermal therapy for breast cancer.
期刊介绍:
Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.