{"title":"NiO/Ag2CO3异质结的合成及其可见光催化活性","authors":"Shuang Gao, Yong Li, Tian Li, Yulan Ren","doi":"10.1007/s11164-025-05681-7","DOIUrl":null,"url":null,"abstract":"<div><p>In this paper, NiO/Ag<sub>2</sub>CO<sub>3</sub> heterojunction was prepared by ultrasonic assisted precipitation method. XRD, SEM, TEM, PL, EIS and UV–Vis DRS were used to analyze the morphology, structural composition, optical and electrical properties of NiO/Ag<sub>2</sub>CO<sub>3</sub>. The NiO/Ag<sub>2</sub>CO<sub>3</sub> composite photocatalysts exhibited good photocatalytic degradation activity on the non-azo dyes Rhodamine B (RhB), Methylene Blue (MB) and the azo dye Methyl Orange (MO) after irradiation for 30 min, with degradation efficiencies of 95.98%, 98.52%, and 87.68%, respectively. This is mainly attributed to the construction of heterojunctions and the increase in the separation rate of photogenerated electron–hole pairs. The free radical capture experiment confirmed that the main active substances in the reaction process are h<sup>+</sup> and·O<sub>2</sub><sup>−</sup>, while the role of OH in the degradation process is relatively small.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 9","pages":"5211 - 5223"},"PeriodicalIF":3.5000,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis of NiO/Ag2CO3 heterojunctions and their visible light catalytic activity\",\"authors\":\"Shuang Gao, Yong Li, Tian Li, Yulan Ren\",\"doi\":\"10.1007/s11164-025-05681-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this paper, NiO/Ag<sub>2</sub>CO<sub>3</sub> heterojunction was prepared by ultrasonic assisted precipitation method. XRD, SEM, TEM, PL, EIS and UV–Vis DRS were used to analyze the morphology, structural composition, optical and electrical properties of NiO/Ag<sub>2</sub>CO<sub>3</sub>. The NiO/Ag<sub>2</sub>CO<sub>3</sub> composite photocatalysts exhibited good photocatalytic degradation activity on the non-azo dyes Rhodamine B (RhB), Methylene Blue (MB) and the azo dye Methyl Orange (MO) after irradiation for 30 min, with degradation efficiencies of 95.98%, 98.52%, and 87.68%, respectively. This is mainly attributed to the construction of heterojunctions and the increase in the separation rate of photogenerated electron–hole pairs. The free radical capture experiment confirmed that the main active substances in the reaction process are h<sup>+</sup> and·O<sub>2</sub><sup>−</sup>, while the role of OH in the degradation process is relatively small.</p></div>\",\"PeriodicalId\":753,\"journal\":{\"name\":\"Research on Chemical Intermediates\",\"volume\":\"51 9\",\"pages\":\"5211 - 5223\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2025-07-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Research on Chemical Intermediates\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11164-025-05681-7\",\"RegionNum\":3,\"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":"Research on Chemical Intermediates","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11164-025-05681-7","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Synthesis of NiO/Ag2CO3 heterojunctions and their visible light catalytic activity
In this paper, NiO/Ag2CO3 heterojunction was prepared by ultrasonic assisted precipitation method. XRD, SEM, TEM, PL, EIS and UV–Vis DRS were used to analyze the morphology, structural composition, optical and electrical properties of NiO/Ag2CO3. The NiO/Ag2CO3 composite photocatalysts exhibited good photocatalytic degradation activity on the non-azo dyes Rhodamine B (RhB), Methylene Blue (MB) and the azo dye Methyl Orange (MO) after irradiation for 30 min, with degradation efficiencies of 95.98%, 98.52%, and 87.68%, respectively. This is mainly attributed to the construction of heterojunctions and the increase in the separation rate of photogenerated electron–hole pairs. The free radical capture experiment confirmed that the main active substances in the reaction process are h+ and·O2−, while the role of OH in the degradation process is relatively small.
期刊介绍：
Research on Chemical Intermediates publishes current research articles and concise dynamic reviews on the properties, structures and reactivities of intermediate species in all the various domains of chemistry.
The journal also contains articles in related disciplines such as spectroscopy, molecular biology and biochemistry, atmospheric and environmental sciences, catalysis, photochemistry and photophysics. In addition, special issues dedicated to specific topics in the field are regularly published.
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