高校化学工程学报Issue(1)：164-169,6.DOI:10.3969/j.issn.1003-9015.2013.01.028
搅拌式浆态光催化反应器对偶氮染料X-3B的降解特性研究
Performance of Stirred Slurry Photocatalytic Reactor in Azo Dye X-3B Degradation
摘要
Abstract
A stirred slurry photocatalytic reactor with effective volume of 5 L was constructed and applied to study the pohotocatalytic degradation of a typical azo dye, reactive brilliant red X-3B. The adsorption behavior of X-3B on the TiO2 surface and some operation factors, such as TiO2 dosage, stirring speed and air agitation, which impact photocatalytic degradation rate of X-3B, were explored in detail. By analyzing the degradation kinetics of X-3B, the correlation between stirring intensity and initial reaction rate was set up. The experimental results show that the adsorption behavior of X-3B on the TiO2 fits very well with the Langmuir and Freundlich models. At the optimum catalyst loading of 0.5 g⋅L−1, the initial reaction rate increases with increasing stirred Reynolds number at first and then goes up to a stable value. The initial react rate can be improved significantly by further appropriately increasing aeration. It can be deduced that the transfer of oxygen in the reactor is a prominent factor affecting the initial react rate.关键词
搅拌式浆态光催化反应器/偶氮染料/二氧化钛/初始反应速率/速度梯度Key words
stirred slurry photocatalytic reactor/azo dye/titanium dioxide/initial react rate/velocity gradient分类
化学化工引用本文复制引用
王金辉,张继伟,王之阳,王光辉,张国亮,王家德..搅拌式浆态光催化反应器对偶氮染料X-3B的降解特性研究[J].高校化学工程学报,2013,(1):164-169,6.基金项目
国家自然科学基金(20976163) （20976163）
浙江省重大科技计划项目(2008C13014-2) （2008C13014-2）
