[1]梁 艳,周清华,刘文华,等.高能(001)晶面外露的锐钛矿TiO2微球的水热制备及其气敏性能研究[J].江西师范大学学报(自然科学版),2017,(04):401-404.
 LIANG Yan,ZHOU Qinghua,LIU Wenhua,et al.The Hydrothermal Preparation and Gas Sensing Properties of Anatase TiO2 Microspheres with Exposed High-Energy(001)Crystal Facets[J].Journal of Jiangxi Normal University:Natural Science Edition,2017,(04):401-404.
点击复制

高能(001)晶面外露的锐钛矿TiO2微球的水热制备及其气敏性能研究()
分享到:

《江西师范大学学报》(自然科学版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2017年04期
页码:
401-404
栏目:
出版日期:
2017-09-01

文章信息/Info

Title:
The Hydrothermal Preparation and Gas Sensing Properties of Anatase TiO2 Microspheres with Exposed High-Energy(001)Crystal Facets
作者:
梁 艳周清华刘文华胡 伟王 涛杨 勇
1.江西科技学院理学教学部,江西 南昌 330098; 2.江西师范大学物理与通信电子学院,江西省微纳材料与传感器件重点实验室,江西 南昌 330022
Author(s):
LIANG YanZHOU QinghuaLIU WenhuaHU WeiWANG TaoYANG Yong
1.Department of Scientific Education,Jiangxi University of Technology,Nanchang Jiangxi 330098,China; 2.Jiangxi Key Laboratory of Nanomaterials and Sensors,School of Physics Communication and Electronics,Jiangxi Normal University,Nanchang Jiangxi 330
关键词:
TiO2微球 高能(001)晶面 气敏性能
Keywords:
TiO2 microspheres high-energy(001)crystal facets gas sensing performance
分类号:
O 643.32
文献标志码:
A
摘要:
采用一步水热法制备了由高能(001)晶面外露的锐钛矿相单晶组装而成的TiO2微球.通过反应体系pH值的调控可以对TiO2微球的微观形貌进行调控.对TiO2微球的生长机理进行了分析.结果表明:适中的氢氟酸分子浓度对高能(001)晶面的稳定至关重要.进一步的研究表明,得益于高能(001)晶面的外露以及独特的分级形貌,这种TiO2微球对丙酮表现出了优异的气敏性能.
Abstract:
TiO2microspheres composed of anatase single crystal with exposed high-energy(001)crystal facets are fabricated by a one-pot hydrothermal method.The micro-morphology of the TiO2microspheres can be tuned by the pH value of reaction system.The growth mechanism of the TiO2 microspheres is analyzed,.The results show that moderate concentration of hydrofluoric acid is very important for the stability of high energy(001)crystal surface.Further studies indicate that the TiO2microspheres show excellent gas sensing performance towards acetone,due to the exposing of high-energy(001)crystal facets and unique hierarchical morphology.

参考文献/References:

[1] Liu Yixin,Parisi J,Sun Xiangcheng,et al.Solid-state gas sensors for high temperature applications-a review [J].J Mater Chem A,2014,2(26):9919-9943.
[2] Bai Jing,Zhou Baoxue.Titanium dioxide nanomaterials for sensor applications [J].Chem Rev,2014,114(19):10131-10176.
[3] Aleksander G.Nanosensors:towards morphological control of gas sensing activity:SnO2,In2O3,ZnO and WO3 case studies [J].Nanoscale,2011,3(1):154-165.
[4] Wang Chenxia,Cai Daoping,Liu Bin,et al.Ethanol-sensing performance of tin dioxide octahedral nanocrystals with exposed high-energy(111)and(332)facets [J].J Mater Chem A,2014,2(27):10623-10628.
[5] Wang Zhihua,Xue Jie,Han Dongmei,et al.Controllable defect redistribution of ZnO nanopyramids with exposed(1011)facets for enhanced gas sensing performance [J].ACS Appl Mater Interfaces,2015,7(1):308-317.
[6] Han Xiguang,Han Xiao,Sun Linqiang,et al.Synthesis of trapezohedral indium oxide nanoparticles with high-index(211)facets and high gas sensing activity [J].Chem Commun,2015,51(47):9612-9615.
[7] Jia Qianqian,Ji Huiming,Wang Dahao,et al.Exposed facets induced enhanced acetone selective sensing property of nanostructured tungsten oxide [J].J Mater Chem A,2014,2(33):13602-13611.
[8] Yang Huagui,Sun Chenghua,Qiao Shizhang,et al.Anatase TiO2 single crystals with a large percentage of reactive facets [J].Nature,2008,453(7195):638-646.
[9] Han Xiguang,Kuang Qin,Jin Mingshang,et al.Synthesis of titania nanosheets with a high percentage of exposed(001)facets and related photocatalytic properties [J].J Am Chem Soc,2009,131(9):3152-3156.
[10] Liu Min,Piao Lingyu,Zhao Lei,et al.Anatase TiO2 single crystals with exposed(001)and(110)facets:facile synthesis and enhanced photocatalysis [J].Chem Commun,2010,46(10):1664-1666.
[11] Pan Jian,Liu Gang,Lu Gaoqing,et al.On the true photoreactivity order of(001),(010),and(101)facets of anatase TiO2 crystals [J].Angew Chem Int Ed,2011,50(9):2133-2137.
[12] Xu Hua,Reunchan P,Ouyang Shuxin,et al.Anatase TiO2 single crystals exposed with high-reactive(111)facets toward efficient H2 evolution [J].Chem Mater,2013,25(3):405-411.
[13] Liu Gang,Yang Huagui,Pan Jian,et al.Titanium dioxide crystals with tailored facets [J].Chem Rev,2014,114(19):9559-9612.
[14] Wang Yun,Zhang Haimin,Han Yanhe,et al.A selective etching phenomenon on(001)faceted anatase titaniu dioxide single crystal surfaces by hydrofluoric acid [J],Chem Commun,2011,47(10):2829-2831.
[15] Yang XiaoHua,Yang HuaGui,Li Chunzhong,et al.Controllable nanocarving of anatase TiO2 single crystals with reactive(001)facets [J],Chem Eur J,2011,17(24):6615-6619.
[16] Liu Xiaogang,Dong Guojun,Li Shaopeng,et al.Direct observation of charge separation on anatase TiO2 crystals with selectively etched(001)Facets [J].J Am Chem Soc,2016,138(9):2917-2920.
[17] Yang Yong,Liang Yan,Wang Guozhong,et al.Enhanced gas sensing properties of the hierarchical TiO2 hollow microspheres with exposed high-energy(001)crystal facets [J].ACS Appl Mater Interfaces,2015,7(44):24902-24908.
[18] Yang Yong,Hu Jixin,Liang Yan,et al.Anatase TiO2 hierarchical microspheres consisting of truncated nanothorns and their structurally enhanced gas sensing performance [J].J Alloy Compd,2017,694:292-299.

备注/Memo

备注/Memo:
收稿日期:2017-03-21基金项目:国家自然科学基金(51602134,51661012)和江西省微纳材料与传感实验室开放基金(2015004)资助项目.通信作者:杨 勇(1988-),男,安徽六安人,博士,主要从事微/纳米结构材料的可控合成、物性及其在环境方面应用基础问题的研究.E-mail:yyong@jxnu.edu.cn
更新日期/Last Update: 1900-01-01