Preparation of Granular Catalysts with Iodine Doped Titanium Dioxide to Photodegrade Aqueous Bisphenol A

• Main Authors: Hung-Min Hsiao, 蕭宏民
• Other Authors: Chao-Yin Kuo
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/98770065868749149425

碩士 === 國立雲林科技大學 === 環境與安全衛生工程系 === 102 === A high photoactivity of iodine doped titanium dioxide (I-doped TiO2) photocatalysts was synthesized to degrade aqueous bisphenol A (BPA) under visible light(410 nm), ultraviolet light(365 nm) and sunlight has been investigated. The prepared I-doped TiO2 were characterized by scanning electron microscopy(SEM), X-ray diffraction(XRD), UV-visible absorption spectroscopy, and Fourier transform infrared(FTIR) to indicate the mechanism of reaction. The degradation effect of aqueous BPA using I-doped titanium dioxide (I/T = 0.5 mole %) were 86 and 99.7 % under two irradiations of visible and UV light. Similarly, the effects of degradation BPA was 100% under sunlight irradiation. I doped TiO2 with surface dominant I–O–I and I–O–Ti structures, and that act as a electron scavenger capable of inhibiting the rapid recombination of electron–hole pairs. The Recycling test was maintained effectively after ten repeated experiments, which indicate the stability and reusability.