[1]莫剑臣,董如林,张汉平,等.C/TiO2光催化剂的合成及其活性评价[J].常州大学学报(自然科学版),2015,(03):61-65.[doi:10.3969/j.issn.2095-0411.2015.03.012]
MO Jianchen,DONG Rulin,ZHANG Hanping,et al.Preparation and Activity Evaluation of C/TiO2 Photocatalyst[J].Journal of Changzhou University(Natural Science Edition),2015,(03):61-65.[doi:10.3969/j.issn.2095-0411.2015.03.012]
点击复制
C/TiO2光催化剂的合成及其活性评价()
常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]
- 卷:
-
- 期数:
-
2015年03期
- 页码:
-
61-65
- 栏目:
-
化学化工
- 出版日期:
-
2015-07-25
文章信息/Info
- Title:
-
Preparation and Activity Evaluation of C/TiO2 Photocatalyst
- 作者:
-
莫剑臣; 董如林; 张汉平; 姜苏; 陈智栋; 金长春
-
常州大学 石油化工学院,江苏 常州 213164
- Author(s):
-
MO Jianchen; DONG Rulin; ZHANG Hanping; JIANG Su; CHEN Zhidong; JIN Changchun
-
School of Petrochemical Engineering,Changzhou University,Changzhou 213164, China
-
- 关键词:
-
葡萄糖; 蔗糖; 淀粉; C/TiO2光催化剂; 电化学; 光催化活性
- Keywords:
-
glucose; sucrose; starch; C/TiO2 photocatalyst; electrochemistry; photocatalytic activity
- 分类号:
-
O 643.36
- DOI:
-
10.3969/j.issn.2095-0411.2015.03.012
- 文献标志码:
-
A
- 摘要:
-
在水-醇体系中,以钛酸四正丁酯(TBOT)及葡萄糖、蔗糖或淀粉分别作为Ti及C的前驱体,通过水热过程制备了一系列C/TiO2光催化剂。FE-SEM和TEM结果表明水热过程中所形成的TiO2晶粒被包覆在前驱体所形成的C中,其尺寸约10 nm。电化学分析结果表明,C的引入抑制了TiO2光生电子-空穴对的复合几率。与纯TiO2纳米粒子相比,C/TiO2显示了对亚甲基蓝光催化降解具有良好的催化活性。
- Abstract:
-
A series of C/TiO2 photocatalyst were prepared in a water-ethanol system through hydrothermal process,using tetrabutyl titanate,glucose,sucrose or starch as Ti and C precursor respectively.FE-SEM and TEM results show that TiO2 crystalline particles formed by the hydrothermal process are about 10 nm and are embeded in carbon which is derived from C precursor.The electrochemical analysis indicates that the introduction of carbon suppressed the recombination of photo-induced electron-hole pairs.The C/TiO2 photocatalysts showed significant improvement in activity for the degradation of methylene blue compared with pure TiO2 particles.
参考文献/References:
[1] 董如林,莫剑臣,张汉平,等.二氧化钛/氧化石墨烯复合光催化剂的合成[J].化工进展,2014,33 (3):679-684.
[2] DU J,LAI X Y,YANG N L,et al.Hierarchically ordered macro-mesoporous TiO2-graphene composite films:Improved mass transfer,reduced charge recombination,and their enhanced photocatalytic activities[J].ACS Nano,2011,5 (1):590-596.
[3] PAN X,ZHAO Y,LIU S.Comparing graphene-TiO2 nanowire and graphene-TiO2 nanoparticle composite photocatalysts[J].Applied Material Interfaces,2012,4 (8):3944-3950.
[4]陈仕祥.微乳液法制备纳米TiO2/SiO2及其光催化性能[J].化工进展,2012,31 (5):1052.
[5] DONG F,GUO S,WANG H Q,et al.Enhancement of the visible light photocatalytic activity of C-Doped TiO2 nanomaterials prepared by a green synthetic approach[J].The Journal of Physical Chemistry C,2011,115 (27):13285–13292.
[6] WANG H Q,WU Z B,LIU Y.A simple two-step template approach for preparing carbon-doped mesoporous TiO2 hollow microspheres[J].The Journal of Physical Chemistry C,2009,113 (30):13317–13324.
[7] LI B B,ZHAO Z B,GAO F,et al.Mesoporous microspheres composed of carbon-coated TiO2 nanocrystals with exposed {0 0 1} facets for improved visible light photocatalytic activity[J].Applied Catalysis B:Environmental ,2014,147: 958–964.
[8] YUN S M,PALANIVELU K,KIM Y H.Preparation and characterization of carbon covered TiO2 using sucrose for solar photodegradation[J].Journal of Industrial and Engineering Chemistry,2008,14:667-671.
[9] PARAYIL S K,KIBOMBO S H,WU C M,et,al.Enhanced photocatalytic water splitting activity of carbon-modied TiO2 composite materials synthesized by a green synthetic approach[J].International Journal of Hydrogen Energy,2012,37 (10):8257-8267.
[10] LIN Y T,WENG C H,LIN Y H,et,al.Effect of C content and calcination temperature on the photocatalytic activity of C-doped TiO2 catalyst[J].Separation and Purication Technology,2013,116:114-123.
备注/Memo
- 备注/Memo:
-
国家自然科学基金项目(51273027)
更新日期/Last Update:
2015-11-26