Effect of nitridation temperature on TiO2 nanotubular structure and its photoelectrochemical performance

T. Lemes, Lapec, Rs. Brazil, Sherdil Khan, E. L. Silva, L. L. Costa, S. Teixeira, C. Aguzzoli, C. Malfatti
{"title":"Effect of nitridation temperature on TiO2 nanotubular structure and its photoelectrochemical performance","authors":"T. Lemes, Lapec, Rs. Brazil, Sherdil Khan, E. L. Silva, L. L. Costa, S. Teixeira, C. Aguzzoli, C. Malfatti","doi":"10.24084/repqj16.466","DOIUrl":null,"url":null,"abstract":"To improve light absorption in the visible region and to improve photoelectrochemical (PEC) response; herein, we have presented the doping of titanium dioxide (TiO2) nanotubes with nitrogen. TiO2 nanotubes have been heat treated under the ammonia environment at different temperatures for 3 h. The characterization was carried out using field emission gun scanning electron microscopy, (FEG-SEM), visible ultraviolet (UV-Vis) spectrophotometry. The photoelectrochemical tests of the samples were carried out in a Na2S/Na2SO3 (aq) solution. It was found that the nitrogen doping of titanium dioxide in temperature above 600 °C collapses the tubular structure and decreases the PEC performance. On the other hand, PEC performance improving was obtained from the sample nitrided at the lower temperatura which is related to the formation of lower defects in the structure of TiO2 nanotubes.","PeriodicalId":21007,"journal":{"name":"Renewable energy & power quality journal","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Renewable energy & power quality journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24084/repqj16.466","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1

Abstract

To improve light absorption in the visible region and to improve photoelectrochemical (PEC) response; herein, we have presented the doping of titanium dioxide (TiO2) nanotubes with nitrogen. TiO2 nanotubes have been heat treated under the ammonia environment at different temperatures for 3 h. The characterization was carried out using field emission gun scanning electron microscopy, (FEG-SEM), visible ultraviolet (UV-Vis) spectrophotometry. The photoelectrochemical tests of the samples were carried out in a Na2S/Na2SO3 (aq) solution. It was found that the nitrogen doping of titanium dioxide in temperature above 600 °C collapses the tubular structure and decreases the PEC performance. On the other hand, PEC performance improving was obtained from the sample nitrided at the lower temperatura which is related to the formation of lower defects in the structure of TiO2 nanotubes.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
氮化温度对TiO2纳米管结构及其光电化学性能的影响
提高可见光区的光吸收,提高光电化学(PEC)响应;在此,我们提出了二氧化钛(TiO2)纳米管与氮掺杂。将TiO2纳米管在不同温度的氨环境下热处理3 h,采用场发射枪扫描电镜(fg - sem)、可见紫外分光光度法(UV-Vis)对其进行表征。样品在Na2S/Na2SO3 (aq)溶液中进行了光电化学测试。结果表明,在600℃以上的温度下,二氧化钛的氮掺杂会导致管状结构的坍塌,从而降低了PEC的性能。另一方面,在较低温度下氮化样品的PEC性能得到改善,这与TiO2纳米管结构中缺陷的形成较少有关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
A bibliometric study on the nexus of economic growth and renewable energy in Brazil Energy Flows Optimization in a Renewable Energy Community with Storage Systems Integration Effect of cloud transits in a stand-alone solar photovoltaic water pumping system MATLAB® Modeling of a Microgrid: Towards a Vision Based on Entropy Balance Self-Heating Induced Instability of a Non-Linear Inductor in a SMPS: a Case Study.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1