{"title":"二维/二维 Bi2O2S/CdS 异质结光阳极的表面外延生长及其光电化学特性","authors":"Xueling Wei, Zhen Ma, Yuanhao Yang, Qiujie Li, Qian Sun, Dekai Zhang, Enzhou Liu, Hui Miao","doi":"10.1021/acs.langmuir.4c03156","DOIUrl":null,"url":null,"abstract":"Constructing high catalytic activity heterojunctions to compensate for the shortcomings of single catalysts has promoted the development of semiconductor catalysts in photoelectrochemical (PEC) water splitting. In this case, the 2D/2D Bi<sub>2</sub>O<sub>2</sub>S/CdS composite was successfully constructed by an in situ surface epitaxial growth method. At 1.23 V vs RHE, the catalytic activity of Bi<sub>2</sub>O<sub>2</sub>S/CdS with a 2D/2D heterojunction is the highest, and the current density of the Bi<sub>2</sub>O<sub>2</sub>S/CdS photoanode is 3.46 mA/cm<sup>2</sup>. Compared with the Bi<sub>2</sub>O<sub>2</sub>S photoanode (0.59 mA/cm<sup>2</sup>), the performance has been improved by 5.86 times. In electrochemical impedance spectroscopy testing, the arc radius of 2D/2D Bi<sub>2</sub>O<sub>2</sub>S/CdS is smaller than that of Bi<sub>2</sub>O<sub>2</sub>S, indicating faster charge-transfer kinetics. The data show that the 2D/2D heterojunction with surface–surface contact successfully enhances the catalytic activity of Bi<sub>2</sub>O<sub>2</sub>S, greatly elevating the efficiency of charge separation and migration. This study provides a method to enhance the PEC activity in type-I heterojunction photoelectrodes, promoting the application of Bi<sub>2</sub>O<sub>2</sub>S-based materials in photoelectrochemistry.","PeriodicalId":50,"journal":{"name":"Langmuir","volume":null,"pages":null},"PeriodicalIF":3.7000,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Surface Epitaxial Growth of 2D/2D Bi2O2S/CdS Heterojunction Photoanodes and Their Photoelectrochemical Properties\",\"authors\":\"Xueling Wei, Zhen Ma, Yuanhao Yang, Qiujie Li, Qian Sun, Dekai Zhang, Enzhou Liu, Hui Miao\",\"doi\":\"10.1021/acs.langmuir.4c03156\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Constructing high catalytic activity heterojunctions to compensate for the shortcomings of single catalysts has promoted the development of semiconductor catalysts in photoelectrochemical (PEC) water splitting. In this case, the 2D/2D Bi<sub>2</sub>O<sub>2</sub>S/CdS composite was successfully constructed by an in situ surface epitaxial growth method. At 1.23 V vs RHE, the catalytic activity of Bi<sub>2</sub>O<sub>2</sub>S/CdS with a 2D/2D heterojunction is the highest, and the current density of the Bi<sub>2</sub>O<sub>2</sub>S/CdS photoanode is 3.46 mA/cm<sup>2</sup>. Compared with the Bi<sub>2</sub>O<sub>2</sub>S photoanode (0.59 mA/cm<sup>2</sup>), the performance has been improved by 5.86 times. In electrochemical impedance spectroscopy testing, the arc radius of 2D/2D Bi<sub>2</sub>O<sub>2</sub>S/CdS is smaller than that of Bi<sub>2</sub>O<sub>2</sub>S, indicating faster charge-transfer kinetics. The data show that the 2D/2D heterojunction with surface–surface contact successfully enhances the catalytic activity of Bi<sub>2</sub>O<sub>2</sub>S, greatly elevating the efficiency of charge separation and migration. This study provides a method to enhance the PEC activity in type-I heterojunction photoelectrodes, promoting the application of Bi<sub>2</sub>O<sub>2</sub>S-based materials in photoelectrochemistry.\",\"PeriodicalId\":50,\"journal\":{\"name\":\"Langmuir\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2024-10-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Langmuir\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.langmuir.4c03156\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Langmuir","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acs.langmuir.4c03156","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Surface Epitaxial Growth of 2D/2D Bi2O2S/CdS Heterojunction Photoanodes and Their Photoelectrochemical Properties
Constructing high catalytic activity heterojunctions to compensate for the shortcomings of single catalysts has promoted the development of semiconductor catalysts in photoelectrochemical (PEC) water splitting. In this case, the 2D/2D Bi2O2S/CdS composite was successfully constructed by an in situ surface epitaxial growth method. At 1.23 V vs RHE, the catalytic activity of Bi2O2S/CdS with a 2D/2D heterojunction is the highest, and the current density of the Bi2O2S/CdS photoanode is 3.46 mA/cm2. Compared with the Bi2O2S photoanode (0.59 mA/cm2), the performance has been improved by 5.86 times. In electrochemical impedance spectroscopy testing, the arc radius of 2D/2D Bi2O2S/CdS is smaller than that of Bi2O2S, indicating faster charge-transfer kinetics. The data show that the 2D/2D heterojunction with surface–surface contact successfully enhances the catalytic activity of Bi2O2S, greatly elevating the efficiency of charge separation and migration. This study provides a method to enhance the PEC activity in type-I heterojunction photoelectrodes, promoting the application of Bi2O2S-based materials in photoelectrochemistry.
期刊介绍：
Langmuir is an interdisciplinary journal publishing articles in the following subject categories:
Colloids: surfactants and self-assembly, dispersions, emulsions, foams
Interfaces: adsorption, reactions, films, forces
Biological Interfaces: biocolloids, biomolecular and biomimetic materials
Materials: nano- and mesostructured materials, polymers, gels, liquid crystals
Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry
Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals
However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do?
Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*.
This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
