{"title":"构建掺杂 N 的二维 TiO2/MoS2 S 型异质结以增强罗丹明 B 的光降解活性","authors":"Bayrammyrat Ovezmyradov, Huiyuan Chen, Shouzhen Duan, Meitong Zhu, Duoping Zhang, Caihong Xue, Movlamberdi Ovezmyradov, Guijun Yang","doi":"10.1007/s11144-024-02702-1","DOIUrl":null,"url":null,"abstract":"<div><p>Large-size 2D TiO<sub>2</sub> was prepared by hydrothermal method, then N doping was carried out ultrasound-assisted methods were utilized to successfully prepare N-TiO<sub>2</sub>/MoS<sub>2</sub> composites for simulating the degradation of rhodamine B (RhB) under sunlight. The degradation rate of RhB by N-TiO<sub>2</sub>/MoS<sub>2</sub> was as high as 92%, which was 40% higher than the 2D N-TiO<sub>2</sub> and 59% higher than that of TiO<sub>2</sub>. N doping TiO<sub>2</sub> can effectively improve the response to visible light and regulate its conduction band, with MoS<sub>2</sub> to construct a new type of S-scheme heterojunction photocatalysts, which promotes the separation and transfer of carriers, and at the meantime, crushed MoS<sub>2</sub> exposes more active sites. So the performance of photocatalytic degradation was improved. This work constructs the efficient semiconductor photocatalytic nano-heterostructures which is important for the surface modification of defective TiO<sub>2</sub> to improve the degradation of photocatalysts. It also introduces a novel approach to the straightforward synthesis with fresh powerful photocatalysts.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"138 1","pages":"471 - 484"},"PeriodicalIF":1.7000,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Construction of N-doped 2D TiO2/MoS2 S-scheme heterojunction for enhanced photodegradation activity by rhodamine B\",\"authors\":\"Bayrammyrat Ovezmyradov, Huiyuan Chen, Shouzhen Duan, Meitong Zhu, Duoping Zhang, Caihong Xue, Movlamberdi Ovezmyradov, Guijun Yang\",\"doi\":\"10.1007/s11144-024-02702-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Large-size 2D TiO<sub>2</sub> was prepared by hydrothermal method, then N doping was carried out ultrasound-assisted methods were utilized to successfully prepare N-TiO<sub>2</sub>/MoS<sub>2</sub> composites for simulating the degradation of rhodamine B (RhB) under sunlight. The degradation rate of RhB by N-TiO<sub>2</sub>/MoS<sub>2</sub> was as high as 92%, which was 40% higher than the 2D N-TiO<sub>2</sub> and 59% higher than that of TiO<sub>2</sub>. N doping TiO<sub>2</sub> can effectively improve the response to visible light and regulate its conduction band, with MoS<sub>2</sub> to construct a new type of S-scheme heterojunction photocatalysts, which promotes the separation and transfer of carriers, and at the meantime, crushed MoS<sub>2</sub> exposes more active sites. So the performance of photocatalytic degradation was improved. This work constructs the efficient semiconductor photocatalytic nano-heterostructures which is important for the surface modification of defective TiO<sub>2</sub> to improve the degradation of photocatalysts. It also introduces a novel approach to the straightforward synthesis with fresh powerful photocatalysts.</p></div>\",\"PeriodicalId\":750,\"journal\":{\"name\":\"Reaction Kinetics, Mechanisms and Catalysis\",\"volume\":\"138 1\",\"pages\":\"471 - 484\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-08-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Reaction Kinetics, Mechanisms and Catalysis\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11144-024-02702-1\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reaction Kinetics, Mechanisms and Catalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11144-024-02702-1","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Construction of N-doped 2D TiO2/MoS2 S-scheme heterojunction for enhanced photodegradation activity by rhodamine B
Large-size 2D TiO2 was prepared by hydrothermal method, then N doping was carried out ultrasound-assisted methods were utilized to successfully prepare N-TiO2/MoS2 composites for simulating the degradation of rhodamine B (RhB) under sunlight. The degradation rate of RhB by N-TiO2/MoS2 was as high as 92%, which was 40% higher than the 2D N-TiO2 and 59% higher than that of TiO2. N doping TiO2 can effectively improve the response to visible light and regulate its conduction band, with MoS2 to construct a new type of S-scheme heterojunction photocatalysts, which promotes the separation and transfer of carriers, and at the meantime, crushed MoS2 exposes more active sites. So the performance of photocatalytic degradation was improved. This work constructs the efficient semiconductor photocatalytic nano-heterostructures which is important for the surface modification of defective TiO2 to improve the degradation of photocatalysts. It also introduces a novel approach to the straightforward synthesis with fresh powerful photocatalysts.
期刊介绍:
Reaction Kinetics, Mechanisms and Catalysis is a medium for original contributions in the following fields:
-kinetics of homogeneous reactions in gas, liquid and solid phase;
-Homogeneous catalysis;
-Heterogeneous catalysis;
-Adsorption in heterogeneous catalysis;
-Transport processes related to reaction kinetics and catalysis;
-Preparation and study of catalysts;
-Reactors and apparatus.
Reaction Kinetics, Mechanisms and Catalysis was formerly published under the title Reaction Kinetics and Catalysis Letters.