CAJ | 학술논문

以四异丙氧基钛为钛源，乙醇为溶剂，乙酰丙酮为水解抑制剂，采用溶胶-凝胶法制备TiO2，使用浸渍-提拉法得到玻璃负载TiO2薄膜光催化剂。将制备出的玻璃负载TiO2薄膜用于光催化还原水体中的Cr(VI)。研究了溶液pH、Cr(VI)初始浓度、负载TiO2薄膜的玻璃片投加量、光照时间等因素对光催化还原水体中的Cr(VI)还原率的影响，对负载TiO2薄膜玻璃片的重复利用次数也做了研究。通过研究发现Cr(VI)溶液的pH是影响其光催化还原率的一个重要因素。Cr(VI)初始浓度、负载TiO2薄膜的玻璃片投加量以及光照时间也对光催化还原率有影响。
이사이병양기태위태원，을순위용제，을선병동위수해억제제，채용용효-응효법제비TiO2，사용침지-제랍법득도파리부재TiO2박막광최화제。장제비출적파리부재TiO2박막용우광최화환원수체중적Cr(VI)。연구료용액pH、Cr(VI)초시농도、부재TiO2박막적파리편투가량、광조시간등인소대광최화환원수체중적Cr(VI)환원솔적영향，대부재TiO2박막파리편적중복이용차수야주료연구。통과연구발현Cr(VI)용액적pH시영향기광최화환원솔적일개중요인소。Cr(VI)초시농도、부재TiO2박막적파리편투가량이급광조시간야대광최화환원솔유영향。
Isopropyl titanium, ethanol and acetyl acetone was used as titanium source, solvent and hydrolysis inhibitor, respectively to prepare TiO2 through a sol-gel method. The TiO2 films on glass substrate were obtained by dip-coating method. Photocatalytic reduction of Cr(VI) in water was carried out over the as-prepared TiO2 film on glass substrate. The effects of solution pH, Cr(VI) initial concentration, amount of TiO2 thin films used and illumination time on the photocatalytic reduction rate were investigated elaborately. As well as recycle times of the TiO2 film. It was found that the pH of Cr(VI) solution is an important factor which affecting the photocatalytic reduction rate. Initial concentration of Cr(VI), amount of TiO2 thin films used, illumination time also effected on photocatalytic reduction rate.