순환식 반응기에서 UV-TiO₂를 이용한 반응성염료의 제거에 관한 연구

• 영문명: A Study on the Removal of Reactive Dye Using UV-TiO₂ in Circular Type Reactor
• 발행기관: 한국환경보건학회
• 저자명: 조일형(II Hyoung Cho) 김현용(Hyun Yong Kim) 이용규(Yong Gyoo Lee) 박경렬(Kyung Yeul Park) 이홍근(Hong Keun Lee)
• 간행물 정보: 『한국환경보건학회지』제26권 제1호, 64~70쪽, 전체 7쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2000.03.30

영문 초록

Photocatalytic degradation of reactive dye, Red 120, has been carried out on TiO₂ particles as photocatalyst under UV irradiation. In this experiment, comparison on the removal of reactive dye by photolysis photocatalyst adsorption and photocatalysis as well as the effect of experimental parameters such as the number of column employed, circulation flow rate, intensity of the light, pH and TiO₂ dosage affecting the reaction efficiency of photocatalytic degradation of reactive dye in circular type reactor was examined. The results of this study were as follows. 1. With both UV light illumination and TiO₂ present, reactive dye was more effectively eliminated than with either UV or TiO₂ alone. It was found that application of TiO₂ photocatalysis to reactive dye was possible. 2. As the number of column employed increased, the removal efficiency of reactive dye was increased. 3. A s the circulation flow rate of solution increased, the removal efficiency of reactive dye was increased. However, over 1 !/min of the circulation flow rate, the efficiency was limited. 4 . Photocatalytic degradation of reactive dye increased linearly with increasing UV light intensity. However, over 15 mW/㎠ of UV light intensity, the efficiency reached a plateau. 5. The photocatalytic degradation rate was greater in acid media of pH 5.2 than in neutral and alkaline media. 5. Photocatalytic removal efficiency of reactive dye increased with increasing TiO₂ dosage. However, over 1.0 g/L of TiO₂ dosage, the efficiency reached a plateau.

목차

I. 서론

II. 반응성 염료의 광촉매반응 메카니즘

III. 실험장치 및 방법

IV. 결과 및 고찰

V. 결론

키워드

Photocatalytic TiO₂UV Reactive dye