【摘要】 以活性炭纤维为吸附剂,将过渡金属离子掺杂修饰技术制备了高活性TiO2光催化剂,在紫外光照射下对低浓度的甲醛进行吸附 光催化氧化试验研究,分析了催化剂的用量、光照时间、浓度等因素对光催化效果的影响和ACF(活性炭纤维)重复使用的情况。更多还原

【Abstract】 TiO₂ was used as a photocatalyst and activated carbon fibres that supported TiO₂ as an adsorbent to decontaminate formaldehyde gas of low concentration.The photocatalyst was prepared by sol-gel technique and modified with Fe³⁺and so it got a higher activity. Activated carbon fibres loaded with TiO₂ was exposed to UV light with the result that formaldehyde gas was adsorbed by ACF and then photocatalytic oxidized into CO₂ and H₂O. In the experiment, effects of reaction time, does of titanium dioxide and formaldehyde concentration have been studied, and the adsorption capability of ACF used in photocatalytic oxidation was also tested.更多还原