Home

Citation: ZHANG Hui, ZHANG Zhi-Feng, LI Hong-Fei, MENG Shu-Lan, LI De-Qian. Effect of Electrostatic Field on TiO₂ Photocatalysis[J]. Chinese Journal of Applied Chemistry, ;2008, 25(6): 629-632. shu

Effect of Electrostatic Field on TiO₂ Photocatalysis

1.
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Corresponding author: LI De-Qian,
Received Date: 7 June 2007
Available Online: 17 August 2007
Fund Project: 国家自然科学基金资助项目(20371046) (20371046)

The effect of electrostatic field on the photodegradation of Methyl Orange (MO) with P25 TiO₂ catalyst was investigated.The results showed that the effect of the electrostatic field is very different from the traditional electrically assisted photocatalysis (EAP).With the increase of the electrostatic field,the apparent photodegradation activity declined.The fastest degradation was obtained atc (TiO₂)=0.5 g/L without electrostatic field.However,the degradation rate of the same system was lower under higher electrostatic fields.The apparent rate constant of the degradation reaction under 20 kV electrostatic field was only 56% of that in the same system without electrostatic field.Furthermore,under the 20 kV field,the photodegradation was independent of the dosage of TiO₂.By comparing the particle size distribution and the sedimentation rate within and without electrostatic field,it was conduded that the effects of electrostatic field,such as the electrophoresis,the polarization and the destruction of surface charge layer,made the particles aggregate and deposit.The coagulation decreased the amount of the catalyst dispersed in the solutions,and finally,decreased the apparent rate constant of the degradation reaction.At the end,it was proposed that the coagulation effect could be used to recycle the TiO₂ nanoparticles from the photodegraded wastewater.
- electrostatic field,
- titania,
- photocatalysis,
- coagulation
1. [1]
  Xiaoyao YIN , Wenhao ZHU , Puyao SHI , Zongsheng LI , Yichao WANG , Nengmin ZHU , Yang WANG , Weihai SUN . Fabrication of all-inorganic CsPbBr₃ perovskite solar cells with SnCl₂ interface modification. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 469-479. doi: 10.11862/CJIC.20240309
2. [2]
  Zongsheng LI , Yichao WANG , Yujie WANG , Wenhao ZHU , Xiaoyao YIN , Wudan YANG , Songzhi ZHENG , Weihai SUN . Preparation of CsPbBr₃ perovskite solar cells via bottom interface modification with methylammonium chloride. Chinese Journal of Inorganic Chemistry, 2025, 41(9): 1805-1816. doi: 10.11862/CJIC.20250066
3. [3]
  Hongye Bai , Lihao Yu , Jinfu Xu , Xuliang Pang , Yajie Bai , Jianguo Cui , Weiqiang Fan . Controllable Decoration of Ni-MOF on TiO2: Understanding the Role of Coordination State on Photoelectrochemical Performance. Chinese Journal of Structural Chemistry, 2023, 42(10): 100096-100096. doi: 10.1016/j.cjsc.2023.100096
4. [4]
  Zhiqiang Wang , Yajie Gao , Tianjun Wang , Wei Chen , Zefeng Ren , Xueming Yang , Chuanyao Zhou . Photocatalyzed oxidation of water on oxygen pretreated rutile TiO₂(110). Chinese Chemical Letters, 2025, 36(4): 110602-. doi: 10.1016/j.cclet.2024.110602
5. [5]
  Jiatong Li , Linlin Zhang , Peng Huang , Chengjun Ge . Carbon bridge effects regulate TiO₂–acrylate fluoroboron coatings for efficient marine antifouling. Chinese Chemical Letters, 2025, 36(2): 109970-. doi: 10.1016/j.cclet.2024.109970
6. [6]
  Cailiang Yue , Nan Sun , Yixing Qiu , Linlin Zhu , Zhiling Du , Fuqiang Liu . A direct Z-scheme 0D α-Fe₂O₃/TiO₂ heterojunction for enhanced photo-Fenton activity with low H₂O₂ consumption. Chinese Chemical Letters, 2024, 35(12): 109698-. doi: 10.1016/j.cclet.2024.109698
7. [7]
  Maosen Xu , Pengfei Zhu , Qinghong Cai , Meichun Bu , Chenghua Zhang , Hong Wu , Youzhou He , Min Fu , Siqi Li , Xingyan Liu . In-situ fabrication of TiO₂/NH₂−MIL-125(Ti) via MOF-driven strategy to promote efficient interfacial effects for enhancing photocatalytic NO removal activity. Chinese Chemical Letters, 2024, 35(10): 109524-. doi: 10.1016/j.cclet.2024.109524
8. [8]
  Kun WANG , Wenrui LIU , Peng JIANG , Yuhang SONG , Lihua CHEN , Zhao DENG . Hierarchical hollow structured BiOBr-Pt catalysts for photocatalytic CO₂ reduction. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1270-1278. doi: 10.11862/CJIC.20240037
9. [9]
  Zhuo WANG , Junshan ZHANG , Shaoyan YANG , Lingyan ZHOU , Yedi LI , Yuanpei LAN . Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1708-1718. doi: 10.11862/CJIC.20240067
10. [10]
  Xuejiao Wang , Suiying Dong , Kezhen Qi , Vadim Popkov , Xianglin Xiang . Photocatalytic CO₂ Reduction by Modified g-C₃N₄. Acta Physico-Chimica Sinica, 2024, 40(12): 2408005-0. doi: 10.3866/PKU.WHXB202408005
11. [11]
  Jianyin He , Liuyun Chen , Xinling Xie , Zuzeng Qin , Hongbing Ji , Tongming Su . Construction of ZnCoP/CdLa₂S₄ Schottky Heterojunctions for Enhancing Photocatalytic Hydrogen Evolution. Acta Physico-Chimica Sinica, 2024, 40(11): 2404030-0. doi: 10.3866/PKU.WHXB202404030
12. [12]
  Ruolin CHENG , Haoran WANG , Jing REN , Yingying MA , Huagen LIANG . Efficient photocatalytic CO₂ cycloaddition over W₁₈O₄₉/NH₂-UiO-66 composite catalyst. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 523-532. doi: 10.11862/CJIC.20230349
13. [13]
  Yulian Hu , Xin Zhou , Xiaojun Han . A Virtual Simulation Experiment on the Design and Property Analysis of CO₂ Reduction Photocatalyst. University Chemistry, 2025, 40(3): 30-35. doi: 10.12461/PKU.DXHX202403088
14. [14]
  Ronghui LI . Photocatalysis performance of nitrogen-doped CeO₂ thin films via ion beam-assisted deposition. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1123-1130. doi: 10.11862/CJIC.20240440
15. [15]
  Tong Zhou , Xue Liu , Liang Zhao , Mingtao Qiao , Wanying Lei . Efficient Photocatalytic H₂O₂ Production and Cr(Ⅵ) Reduction over a Hierarchical Ti₃C₂/In₄SnS₈ Schottky Junction. Acta Physico-Chimica Sinica, 2024, 40(10): 2309020-0. doi: 10.3866/PKU.WHXB202309020
16. [16]
  Linfeng Xiao , Wanlu Ren , Shishi Shen , Mengshan Chen , Runhua Liao , Yingtang Zhou , Xibao Li . Enhancing Photocatalytic Hydrogen Evolution through Electronic Structure and Wettability Adjustment of ZnIn₂S₄/Bi₂O₃ S-Scheme Heterojunction. Acta Physico-Chimica Sinica, 2024, 40(8): 2308036-0. doi: 10.3866/PKU.WHXB202308036
17. [17]
  Jiawei Hu , Kai Xia , Ao Yang , Zhihao Zhang , Wen Xiao , Chao Liu , Qinfang Zhang . Interfacial Engineering of Ultrathin 2D/2D NiPS₃/C₃N₅ Heterojunctions for Boosting Photocatalytic H₂ Evolution. Acta Physico-Chimica Sinica, 2024, 40(5): 2305043-0. doi: 10.3866/PKU.WHXB202305043
18. [18]
  Guoqiang Chen , Zixuan Zheng , Wei Zhong , Guohong Wang , Xinhe Wu . Molten Intermediate Transportation-Oriented Synthesis of Amino-Rich g-C₃N₄ Nanosheets for Efficient Photocatalytic H₂O₂ Production. Acta Physico-Chimica Sinica, 2024, 40(11): 2406021-0. doi: 10.3866/PKU.WHXB202406021
19. [19]
  Xin Zhou , Zhi Zhang , Yun Yang , Shuijin Yang . A Study on the Enhancement of Photocatalytic Performance in C/Bi/Bi₂MoO₆ Composites by Ferroelectric Polarization: A Recommended Comprehensive Chemical Experiment. University Chemistry, 2024, 39(4): 296-304. doi: 10.3866/PKU.DXHX202310008
20. [20]
  Jingzhuo Tian , Chaohong Guan , Haobin Hu , Enzhou Liu , Dongyuan Yang . Waste plastics promoted photocatalytic H₂ evolution over S-scheme NiCr₂O₄/twinned-Cd_0.5Zn_0.5S homo-heterojunction. Acta Physico-Chimica Sinica, 2025, 41(6): 100068-0. doi: 10.1016/j.actphy.2025.100068

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(426)
HTML views(38)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return

Effect of Electrostatic Field on TiO2 Photocatalysis

Metrics

通讯作者: 陈斌, bchen63@163.com

Effect of Electrostatic Field on TiO₂ Photocatalysis