{"title":"Advances in micro-nano biosensing platforms for intracellular electrophysiology","authors":"Jiajin Xue, Min Shao, Zhigang Gao, Ning Hu","doi":"10.1631/jzus.a2300267","DOIUrl":"https://doi.org/10.1631/jzus.a2300267","url":null,"abstract":"","PeriodicalId":17508,"journal":{"name":"Journal of Zhejiang University-SCIENCE A","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135939052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bifurcation control of solid angle car-following model through a time-delay feedback method","authors":"Qun Ji, Hao Lyu, Hang Yang, Qi Wei, Rongjun Cheng","doi":"10.1631/jzus.a2300026","DOIUrl":"https://doi.org/10.1631/jzus.a2300026","url":null,"abstract":"","PeriodicalId":17508,"journal":{"name":"Journal of Zhejiang University-SCIENCE A","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135895169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The development of a combined photocatalytic system with peroxymonosulfate (PMS) has great potential applications in the degradation and treatment of aqueous organic pollutants. Herein, a Co3O4-ZnO/rGO was prepared by a hydrothermal method using cobalt acetate, zinc acetate, and reduced graphene oxide (rGO) as the main raw materials. The physical and chemical characteristics of the obtained catalyst were analyzed using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and Fourier transform infrared (FT-IR). The photocatalytic features and capacities of the catalytic materials to activate PMS were investigated. Co3O4-ZnO/rGO exhibited stronger photocatalytic activity and ability to activate PMS than Co3O4/rGO or ZnO/rGO, and significantly improved the ability of PMS and photocatalysis to synergistically degrade rhodamine B (RhB), with a degradation rate of 90.40% within 40 min. The mechanism of RhB degradation was proposed based on characterization of materials, evaluation of RhB degradation efficiency, and analysis of the active species involved. The unique particle/sheet structure of Co3O4-ZnO/rGO provides a large number of active sites, and the formation of heterojunctions between Co3O4 and ZnO improves carrier separation and transport in the reaction system. Our study offers a reference for designing more effective heterojunction catalysts based on the combination of PMS and photocatalytic technology.
光催化系统与过氧单硫酸盐(PMS)的组合在降解和处理水性有机污染物方面具有很大的应用前景。本文以乙酸钴、乙酸锌和还原氧化石墨烯为主要原料，采用水热法制备了Co3O4-ZnO/rGO。采用x射线衍射(XRD)、x射线光电子能谱(XPS)、扫描电子显微镜(SEM)和傅里叶变换红外(FT-IR)对催化剂的理化性质进行了分析。研究了催化材料的光催化特性和活化PMS的能力。Co3O4-ZnO/rGO表现出比Co3O4/rGO或ZnO/rGO更强的光催化活性和激活PMS的能力，显著提高了PMS和光催化协同降解rhodamine B (RhB)的能力，在40 min内降解率达到90.40%。通过材料表征、RhB降解效率评价和活性物质分析，提出了RhB降解的机理。Co3O4-ZnO/rGO独特的颗粒/片状结构提供了大量的活性位点，Co3O4和ZnO之间异质结的形成提高了反应体系中载流子的分离和输运。本研究为基于PMS与光催化技术相结合设计更有效的异质结催化剂提供了参考。
{"title":"Co3O4-ZnO/rGO catalyst preparation and rhodamine B degradation by sulfate radical photocatalysis","authors":"Zhanmei Zhang, Yi Zhang, Xilin Chen, Ziran Huang, Zuqin Zou, Huaili Zheng","doi":"10.1631/jzus.A2200490","DOIUrl":"https://doi.org/10.1631/jzus.A2200490","url":null,"abstract":"The development of a combined photocatalytic system with peroxymonosulfate (PMS) has great potential applications in the degradation and treatment of aqueous organic pollutants. Herein, a Co3O4-ZnO/rGO was prepared by a hydrothermal method using cobalt acetate, zinc acetate, and reduced graphene oxide (rGO) as the main raw materials. The physical and chemical characteristics of the obtained catalyst were analyzed using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and Fourier transform infrared (FT-IR). The photocatalytic features and capacities of the catalytic materials to activate PMS were investigated. Co3O4-ZnO/rGO exhibited stronger photocatalytic activity and ability to activate PMS than Co3O4/rGO or ZnO/rGO, and significantly improved the ability of PMS and photocatalysis to synergistically degrade rhodamine B (RhB), with a degradation rate of 90.40% within 40 min. The mechanism of RhB degradation was proposed based on characterization of materials, evaluation of RhB degradation efficiency, and analysis of the active species involved. The unique particle/sheet structure of Co3O4-ZnO/rGO provides a large number of active sites, and the formation of heterojunctions between Co3O4 and ZnO improves carrier separation and transport in the reaction system. Our study offers a reference for designing more effective heterojunction catalysts based on the combination of PMS and photocatalytic technology.","PeriodicalId":17508,"journal":{"name":"Journal of Zhejiang University-SCIENCE A","volume":"64 1","pages":"710 - 721"},"PeriodicalIF":3.2,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90339434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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