Hung Ji HUANG^1*, Kuo-Cheng HUANG¹, and Din Ping TSAI²

¹Instrument Technology Research Center, National Applied Research Laboratories, 20, Rd. R&D, VI Hsinchu Science Park, Hsinchu 300, Taiwan
²Department of Physics, National Taiwan University, 1, Sec 4, Rd. Roosevelt, Taipei 106, Taiwan

(Received August 15, 2012; Revised November 6, 2012; Accepted November 16, 2012)

This study numerically investigates the light absorption of a plasmonic photocatalyst in the circular plane waveguide of a photocatalytic spinning disk reactor. The degradation of methyl orange (MO) in water with a dual light source spinning disk reactor (DL-SDR) and embedded diffusion coupler demonstrates the plasmonic photocatalytic reaction. When light propagates in the circular plane disk (CPD) waveguide of a DL-SDR, it gradually loses energy because of the absorption of the photocatalyst. This absorption boosts the processing efficiency of the plasmonic photocatalytic reaction. A real case by a diffusion coupler was used to present the plasmonic photocatalytic reaction. This study presents the numerical analysis of a secondary optical lens (SOL) coupler and the numerical evaluation of light absorption of the plasmonic photocatalyst in a DL-SDR. An elliptical reflector collects the light emitted from the circular ring edge of the SOL and CPD. This study presents an evaluation method that simulates the light absorption of a photocatalyst coating on the CPD of a DL-SDR.

Key words: plane circular disk waveguide, photocatalyst, photocatalytic spinning disk reactor

^*E-mail address: hjhuang@itrc.narl.org.tw