{"title":"紫外光解沉淀Ag2S/Ag纳米复合材料的可见光催化活性","authors":"Chao Han, Jialong Cao, Chu Cheng, Panpan Xu, Guangxin Wang, Jiwen Li","doi":"10.3103/S1067821222040046","DOIUrl":null,"url":null,"abstract":"<p>The thiosulfate system for silver extraction has numerous characteristics such as high efficiency, low consumption, and environmental protection, and it has good application prospects. However, the high cost of metal recovery in thiosulfate systems limits its industrial application. A previous study indicated that Ag<sub>2</sub>S/Ag nanocomposite clouds were precipitated from silver thiosulfate complex (AgTS) through ultraviolet photolysis, whereas the semiconductor-metal nanopowders synthesized through the hydrothermal synthesis process are usually important composites that can be used in photocatalysis, broad-spectrum antibacterial, and other environmental fields. Therefore, this study aims to develop high-value utilization of AgTS hydrometallurgical systems based on the photocatalytic properties of nanocomposites, and proposes research on the visible-light photocatalytic activity of Ag<sub>2</sub>S/Ag photocatalytic systems precipitated from AgTS through ultraviolet photolysis. First, the morphology and optical properties of the Ag<sub>2</sub>S/Ag nanocomposite were investigated. Next, the visible light photocatalytic activity of the Ag<sub>2</sub>S/Ag nanocomposite was evaluated, and finally, the new high-value utilization research method of “ultraviolet absorption → ultraviolet photolysis → photocatalysis” was proposed. In this study, we demonstrate a novel method of high-value utilization of silver thiosulfate lixivium with a high photocatalytic efficiency of the Ag<sub>2</sub>S/Ag nanocomposite of up to 47.98% after three cycles.</p>","PeriodicalId":765,"journal":{"name":"Russian Journal of Non-Ferrous Metals","volume":"63 4","pages":"369 - 378"},"PeriodicalIF":0.6000,"publicationDate":"2022-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Visible Light Photocatalytic Activity of Ag2S/Ag Nanocomposite Precipitated from Silver Thiosulfate Complex through Ultraviolet Photolysis\",\"authors\":\"Chao Han, Jialong Cao, Chu Cheng, Panpan Xu, Guangxin Wang, Jiwen Li\",\"doi\":\"10.3103/S1067821222040046\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The thiosulfate system for silver extraction has numerous characteristics such as high efficiency, low consumption, and environmental protection, and it has good application prospects. However, the high cost of metal recovery in thiosulfate systems limits its industrial application. A previous study indicated that Ag<sub>2</sub>S/Ag nanocomposite clouds were precipitated from silver thiosulfate complex (AgTS) through ultraviolet photolysis, whereas the semiconductor-metal nanopowders synthesized through the hydrothermal synthesis process are usually important composites that can be used in photocatalysis, broad-spectrum antibacterial, and other environmental fields. Therefore, this study aims to develop high-value utilization of AgTS hydrometallurgical systems based on the photocatalytic properties of nanocomposites, and proposes research on the visible-light photocatalytic activity of Ag<sub>2</sub>S/Ag photocatalytic systems precipitated from AgTS through ultraviolet photolysis. First, the morphology and optical properties of the Ag<sub>2</sub>S/Ag nanocomposite were investigated. Next, the visible light photocatalytic activity of the Ag<sub>2</sub>S/Ag nanocomposite was evaluated, and finally, the new high-value utilization research method of “ultraviolet absorption → ultraviolet photolysis → photocatalysis” was proposed. In this study, we demonstrate a novel method of high-value utilization of silver thiosulfate lixivium with a high photocatalytic efficiency of the Ag<sub>2</sub>S/Ag nanocomposite of up to 47.98% after three cycles.</p>\",\"PeriodicalId\":765,\"journal\":{\"name\":\"Russian Journal of Non-Ferrous Metals\",\"volume\":\"63 4\",\"pages\":\"369 - 378\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2022-09-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Journal of Non-Ferrous Metals\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S1067821222040046\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Non-Ferrous Metals","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.3103/S1067821222040046","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Visible Light Photocatalytic Activity of Ag2S/Ag Nanocomposite Precipitated from Silver Thiosulfate Complex through Ultraviolet Photolysis
The thiosulfate system for silver extraction has numerous characteristics such as high efficiency, low consumption, and environmental protection, and it has good application prospects. However, the high cost of metal recovery in thiosulfate systems limits its industrial application. A previous study indicated that Ag2S/Ag nanocomposite clouds were precipitated from silver thiosulfate complex (AgTS) through ultraviolet photolysis, whereas the semiconductor-metal nanopowders synthesized through the hydrothermal synthesis process are usually important composites that can be used in photocatalysis, broad-spectrum antibacterial, and other environmental fields. Therefore, this study aims to develop high-value utilization of AgTS hydrometallurgical systems based on the photocatalytic properties of nanocomposites, and proposes research on the visible-light photocatalytic activity of Ag2S/Ag photocatalytic systems precipitated from AgTS through ultraviolet photolysis. First, the morphology and optical properties of the Ag2S/Ag nanocomposite were investigated. Next, the visible light photocatalytic activity of the Ag2S/Ag nanocomposite was evaluated, and finally, the new high-value utilization research method of “ultraviolet absorption → ultraviolet photolysis → photocatalysis” was proposed. In this study, we demonstrate a novel method of high-value utilization of silver thiosulfate lixivium with a high photocatalytic efficiency of the Ag2S/Ag nanocomposite of up to 47.98% after three cycles.
期刊介绍：
Russian Journal of Non-Ferrous Metals is a journal the main goal of which is to achieve new knowledge in the following topics: extraction metallurgy, hydro- and pirometallurgy, casting, plastic deformation, metallography and heat treatment, powder metallurgy and composites, self-propagating high-temperature synthesis, surface engineering and advanced protected coatings, environments, and energy capacity in non-ferrous metallurgy.
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