Pho Thi Le, Thi Minh Cao, Tin Chanh Duc Doan, Viet Van Pham
{"title":"利用掺杂 S 的二氧化钛纳米管的可见光光催化反应处理氮氧化物气体污染","authors":"Pho Thi Le, Thi Minh Cao, Tin Chanh Duc Doan, Viet Van Pham","doi":"10.1007/s11244-024-01972-2","DOIUrl":null,"url":null,"abstract":"<div><p>The TiO<sub>2</sub> nanomaterial is a traditional photocatalyst that was applied externally in environmental and energy fields. However, a large band gap of TiO<sub>2</sub> is a limitation of this material in applications in visible-light regions. Sulfur (S) doped TiO<sub>2</sub> nanotubes were synthesized with different weight ratios of the S precursor and TiO<sub>2</sub> nanotubes by a thermal diffusion process. Techniques including Fourier transform infrared (FTIR), UV-vis diffuse reflection spectroscopy (DRS), photoluminescence spectroscopy (PL), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) were used to confirm the successful doping of the S-TiO<sub>2</sub> nanotubes. The treatment of nitrogen oxide (NO<sub>x</sub>) gas through photocatalysis using S-doped TiO<sub>2</sub> nanotubes represents an innovative and environmentally friendly approach. Sulfur doping narrows the band gap of TiO<sub>2</sub> nanotubes (from 3.22 to 3.14 eV), allowing for better absorption of visible light. Furthermore, the photocatalytic NO<sub>x</sub> removal performance of S-TiO<sub>2</sub> nanotubes was significantly enhanced with more than 40% NO at 500 ppb, and the efficiency of NO emission decreased significantly after five cycling tests.</p></div>","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"67 17-18","pages":"1129 - 1140"},"PeriodicalIF":2.8000,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Treating NOx gas Pollution by Visible Light Photocatalytic Reaction of S-doped TiO2 Nanotubes\",\"authors\":\"Pho Thi Le, Thi Minh Cao, Tin Chanh Duc Doan, Viet Van Pham\",\"doi\":\"10.1007/s11244-024-01972-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The TiO<sub>2</sub> nanomaterial is a traditional photocatalyst that was applied externally in environmental and energy fields. However, a large band gap of TiO<sub>2</sub> is a limitation of this material in applications in visible-light regions. Sulfur (S) doped TiO<sub>2</sub> nanotubes were synthesized with different weight ratios of the S precursor and TiO<sub>2</sub> nanotubes by a thermal diffusion process. Techniques including Fourier transform infrared (FTIR), UV-vis diffuse reflection spectroscopy (DRS), photoluminescence spectroscopy (PL), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) were used to confirm the successful doping of the S-TiO<sub>2</sub> nanotubes. The treatment of nitrogen oxide (NO<sub>x</sub>) gas through photocatalysis using S-doped TiO<sub>2</sub> nanotubes represents an innovative and environmentally friendly approach. Sulfur doping narrows the band gap of TiO<sub>2</sub> nanotubes (from 3.22 to 3.14 eV), allowing for better absorption of visible light. Furthermore, the photocatalytic NO<sub>x</sub> removal performance of S-TiO<sub>2</sub> nanotubes was significantly enhanced with more than 40% NO at 500 ppb, and the efficiency of NO emission decreased significantly after five cycling tests.</p></div>\",\"PeriodicalId\":801,\"journal\":{\"name\":\"Topics in Catalysis\",\"volume\":\"67 17-18\",\"pages\":\"1129 - 1140\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2024-05-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Topics in Catalysis\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11244-024-01972-2\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Topics in Catalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11244-024-01972-2","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Treating NOx gas Pollution by Visible Light Photocatalytic Reaction of S-doped TiO2 Nanotubes
The TiO2 nanomaterial is a traditional photocatalyst that was applied externally in environmental and energy fields. However, a large band gap of TiO2 is a limitation of this material in applications in visible-light regions. Sulfur (S) doped TiO2 nanotubes were synthesized with different weight ratios of the S precursor and TiO2 nanotubes by a thermal diffusion process. Techniques including Fourier transform infrared (FTIR), UV-vis diffuse reflection spectroscopy (DRS), photoluminescence spectroscopy (PL), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) were used to confirm the successful doping of the S-TiO2 nanotubes. The treatment of nitrogen oxide (NOx) gas through photocatalysis using S-doped TiO2 nanotubes represents an innovative and environmentally friendly approach. Sulfur doping narrows the band gap of TiO2 nanotubes (from 3.22 to 3.14 eV), allowing for better absorption of visible light. Furthermore, the photocatalytic NOx removal performance of S-TiO2 nanotubes was significantly enhanced with more than 40% NO at 500 ppb, and the efficiency of NO emission decreased significantly after five cycling tests.
期刊介绍：
Topics in Catalysis publishes topical collections in all fields of catalysis which are composed only of invited articles from leading authors. The journal documents today’s emerging and critical trends in all branches of catalysis. Each themed issue is organized by renowned Guest Editors in collaboration with the Editors-in-Chief. Proposals for new topics are welcome and should be submitted directly to the Editors-in-Chief.
The publication of individual uninvited original research articles can be sent to our sister journal Catalysis Letters. This journal aims for rapid publication of high-impact original research articles in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
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