Reaction Engineering, Kinetics, and Catalysis

A high-efficient rotating disk photoelectrocatalytic (PEC) reactor with macro light harvesting pyramid-surface electrode

  1. Kan Li1,
  2. Chen Yang1,
  3. YaLin Wang1,
  4. JinPing Jia1,*,
  5. YunLan Xu2,
  6. Yi He3

Article first published online: 13 OCT 2011

DOI: 10.1002/aic.12755

Issue

AIChE Journal

AIChE Journal

Volume 58, Issue 8, pages 2448–2455, August 2012

Additional Information

How to Cite

Li, K., Yang, C., Wang, Y., Jia, J., Xu, Y. and He, Y. (2012), A high-efficient rotating disk photoelectrocatalytic (PEC) reactor with macro light harvesting pyramid-surface electrode. AIChE J., 58: 2448–2455. doi: 10.1002/aic.12755

Author Information

  1. 1

    School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China

  2. 2

    School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400050, P.R. China

  3. 3

    Dept. of Sciences, John Jay College and the Graduate Center, The City University of New York, New York, NY 10019

*School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China

Publication History

  1. Issue published online: 5 JUL 2012
  2. Article first published online: 13 OCT 2011
  3. Accepted manuscript online: 18 AUG 2011 10:13AM EST
  4. Manuscript Revised: 5 AUG 2011
  5. Manuscript Received: 14 JUN 2011

Funded by

  • Natural Science Foundation of China. Grant Numbers: 20937003, 50878126
  • Ph.D. Program Foundation of Ministry of Education of China. Grant Number: 20090073110033

SEARCH

SEARCH BY CITATION

ARTICLE TOOLS

View Full Article (HTML) Get PDF (820K)

Keywords:

  • pyramid-surface TiO2/Ti electrode;
  • rotating disk photoelectrocatalytic (PEC);
  • reactor;
  • rhodamine B

Abstract

A series of pyramid-surface TiO2/Ti electrodes were proposed, fabricated, and used in a rotating disk photoelectrocatalytic (PEC) reactor to treat rhodamine B (RB) solution. Compared with conventional planar electrode, pyramid-surface electrode exhibited much lower light reflectivity, larger photocurrent, and better treatment efficiency. For samples containing 20 to 150 mg L−1 RB, 100– 98% color removal, and 87–30% COD removal were obtained in 150 min using 1/3 (h/w) pyramid-surface electrode, much higher than 98–77% and 48–9% obtained by a conventional planer electrode. The excellent treatment performance attributed to two major reasons: (a) enhanced light harvest resulted from multiple reflections of irradiation light on the pyramid-surface, and (b) enlarged electrode surface area enabling the electrode to carry more TiO2 catalyst and pollutants for treatment. Experimental results also showed that the pyramid-surface electrode consumed less power and exhibited superior performance when treating high concentration wastewater. © 2011 American Institute of Chemical Engineers AIChE J, 58: 2448–2455, 2012

View Full Article (HTML) Get PDF (820K)