A Study concerned with the Effect of Platinized TiO₂ Photocatalysts on the Quantum Yield = A Study concerned with the Effect of Platinized TiO₂ Photocatalysts on the Quantum Yield

국문 초록 (Abstract)

현재 광 촉매로 사용되고 있는 Hombikat, Degussa P-25와 sol-gel process로 제조된 TiO₂ powder 에 platinum을 첨가하여 quantum yield 를 측정하였다. 분해 대상 물질로 DCA(dichloroacetatic acid)를 선정하여 Pt의 concentration 및 열처리 온도 변화에 따른 영향을 관찰한 결과, 상업용 Hombikat에 1 wt% Pt를 첨가하여 300℃ 에서 1 시간 열처리한 광촉매가 광 분해 효율이 43%로 가장 높게 나타났다.

다국어 초록 (Multilingual Abstract)

Three different platinized TiO₂ photocatalysts have been prepared with Hombikat, Degussa P-25 and TiO₂ powder by sol-gel process for the solar detoxification of chlorinated organics in water. Effect of Pt concentration and heat treatment temperature on the quantum yield of platinized TiO₂ photocatalysts have been investigated with DCA. The highest quantum yield of 43.4% has been achieved with 1 wt % Pt-doped Hombikat after calcinating at 300℃ for 1 hr.

목차 (Table of Contents)

• 요약
  
• Abstract
  
• 1. Introduction
  
• 2. Experimentals
  
• 3. Results and Discussion
  
• 4. Conclusions
  
• Acknowledgement
  
• References