{"title":"单相 Bi2MO6（M=Mo，W）玻璃陶瓷的制备与光催化特性","authors":"Longqing He, Haozhang Liang, Nanshan Ma, Tingxiao Wu, Zhiwei Luo, Anxian Lu","doi":"10.1016/j.jnoncrysol.2024.123281","DOIUrl":null,"url":null,"abstract":"<div><div>Single-phase Bi<sub>2</sub>MO<sub>6</sub> (M=Mo, W) glass-ceramics with photocatalytic activity were obtained by one-step heat treatment of the 51B<sub>2</sub>O<sub>3</sub>–24Li<sub>2</sub>O-7ZnO-2P<sub>2</sub>O<sub>5</sub>–1Al<sub>2</sub>O<sub>3</sub>–5Bi<sub>2</sub>O<sub>3</sub>–10MoO<sub>3</sub>/WO<sub>3</sub> parent glasses. The thermal behaviour, phase composition, micromorphology, and network structure of the glasses were investigated, and it was observed that the crystal structure, crystallinity, and microscopic morphology of the glass-ceramics have a significant effect on the photocatalytic activity. XRD and SEM results confirm the precipitation of the monoclinic Bi<sub>2</sub>MoO<sub>6</sub> and orthorhombic Bi<sub>2</sub>WO<sub>6</sub> crystals, which are nano-spherical and 3D dumbbell-like structures, respectively. The prepared glass-ceramics exhibit a strong absorption in the UV–Vis region. The photocatalytic activity of the Bi<sub>2</sub>MO<sub>6</sub> (M=Mo, W) glass-ceramic powders is evaluated by methylene blue dye under UV irradiation. Under the same conditions, the Bi<sub>2</sub>WO<sub>6</sub> glass-ceramic powders exhibit a higher photocatalytic activity than the Bi<sub>2</sub>MoO<sub>6</sub> glass-ceramic powders. The Bi<sub>2</sub>WO<sub>6</sub> glass-ceramic powders achieve a 73% degradation of methylene blue dye after 150 min of irradiation. The difference in photocatalytic activity is mainly related to the crystal structure, crystallinity, and micromorphology of the glass-ceramics. The prepared Bi<sub>2</sub>WO<sub>6</sub> glass-ceramic can be used as a photocatalyst for wastewater treatment.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"647 ","pages":"Article 123281"},"PeriodicalIF":3.2000,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation and photocatalytic properties of single-phase Bi2MO6 (M=Mo, W) glass-ceramics\",\"authors\":\"Longqing He, Haozhang Liang, Nanshan Ma, Tingxiao Wu, Zhiwei Luo, Anxian Lu\",\"doi\":\"10.1016/j.jnoncrysol.2024.123281\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Single-phase Bi<sub>2</sub>MO<sub>6</sub> (M=Mo, W) glass-ceramics with photocatalytic activity were obtained by one-step heat treatment of the 51B<sub>2</sub>O<sub>3</sub>–24Li<sub>2</sub>O-7ZnO-2P<sub>2</sub>O<sub>5</sub>–1Al<sub>2</sub>O<sub>3</sub>–5Bi<sub>2</sub>O<sub>3</sub>–10MoO<sub>3</sub>/WO<sub>3</sub> parent glasses. The thermal behaviour, phase composition, micromorphology, and network structure of the glasses were investigated, and it was observed that the crystal structure, crystallinity, and microscopic morphology of the glass-ceramics have a significant effect on the photocatalytic activity. XRD and SEM results confirm the precipitation of the monoclinic Bi<sub>2</sub>MoO<sub>6</sub> and orthorhombic Bi<sub>2</sub>WO<sub>6</sub> crystals, which are nano-spherical and 3D dumbbell-like structures, respectively. The prepared glass-ceramics exhibit a strong absorption in the UV–Vis region. The photocatalytic activity of the Bi<sub>2</sub>MO<sub>6</sub> (M=Mo, W) glass-ceramic powders is evaluated by methylene blue dye under UV irradiation. Under the same conditions, the Bi<sub>2</sub>WO<sub>6</sub> glass-ceramic powders exhibit a higher photocatalytic activity than the Bi<sub>2</sub>MoO<sub>6</sub> glass-ceramic powders. The Bi<sub>2</sub>WO<sub>6</sub> glass-ceramic powders achieve a 73% degradation of methylene blue dye after 150 min of irradiation. The difference in photocatalytic activity is mainly related to the crystal structure, crystallinity, and micromorphology of the glass-ceramics. The prepared Bi<sub>2</sub>WO<sub>6</sub> glass-ceramic can be used as a photocatalyst for wastewater treatment.</div></div>\",\"PeriodicalId\":16461,\"journal\":{\"name\":\"Journal of Non-crystalline Solids\",\"volume\":\"647 \",\"pages\":\"Article 123281\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-10-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Non-crystalline Solids\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022309324004575\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Non-crystalline Solids","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022309324004575","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Preparation and photocatalytic properties of single-phase Bi2MO6 (M=Mo, W) glass-ceramics
Single-phase Bi2MO6 (M=Mo, W) glass-ceramics with photocatalytic activity were obtained by one-step heat treatment of the 51B2O3–24Li2O-7ZnO-2P2O5–1Al2O3–5Bi2O3–10MoO3/WO3 parent glasses. The thermal behaviour, phase composition, micromorphology, and network structure of the glasses were investigated, and it was observed that the crystal structure, crystallinity, and microscopic morphology of the glass-ceramics have a significant effect on the photocatalytic activity. XRD and SEM results confirm the precipitation of the monoclinic Bi2MoO6 and orthorhombic Bi2WO6 crystals, which are nano-spherical and 3D dumbbell-like structures, respectively. The prepared glass-ceramics exhibit a strong absorption in the UV–Vis region. The photocatalytic activity of the Bi2MO6 (M=Mo, W) glass-ceramic powders is evaluated by methylene blue dye under UV irradiation. Under the same conditions, the Bi2WO6 glass-ceramic powders exhibit a higher photocatalytic activity than the Bi2MoO6 glass-ceramic powders. The Bi2WO6 glass-ceramic powders achieve a 73% degradation of methylene blue dye after 150 min of irradiation. The difference in photocatalytic activity is mainly related to the crystal structure, crystallinity, and micromorphology of the glass-ceramics. The prepared Bi2WO6 glass-ceramic can be used as a photocatalyst for wastewater treatment.
期刊介绍：
The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid.
In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.
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