不同因素对Fe^(3+)-TiO_(2)/ACF降解NH_(3)的影响

Effects of different factors on NH_(3)degradation by Fe^(3+)-TiO_(2)/ACF

为了探究不同因素对Fe^(3+)-TiO_(2)/活性炭纤维(ACF)降解氨气(NH_(3))的影响规律,采用Fe^(3+)-TiO_(2)/ACF复合材料,以NH_(3)为目标降解物,研究初始浓度、流速、光催化剂负载量以及光照强度对Fe^(3+)-TiO_(2)/ACF降解NH_(3)的影响,并进行了相应的反应动力学分析。结果表明:随着初始浓度的增加,NH_(3)降解率呈现略微降低的趋势,光催化过程基本符合L-H一级反应动力学模型;随着流速的增加,NH_(3)降解率表现为先升高后降低,其光催化过程也基本符合L-H一级反应动力学模型;随着光催化剂负载量以及光照强度的增加,NH_(3)降解率表现为略微增加的趋势。

In order to explore the influence of different factors on the degradation of ammonia(NH_(3))by Fe^(3+)-TiO_(2)/ACF,Fe^(3+)-TiO_(2)/ACF composite material was adopted,with NH_(3)as the target degradation substance,and the influence of initial concentration,flow rate,photocatalyst load and light intensity on the degradation of NH_(3)by Fe^(3+)-TiO_(2)/ACF was studied.The corresponding reaction kinetics analysis was carried out.The results showed that the degradation rate of NH_(3)decreased slightly with the increase of initial concentration,and the photocatalytic process basically conformed to the L-H first-order reaction kinetics model.With the increase of flow velocity,the degradation rate of NH_(3)firstly increased and then decreased,and the photocatalytic process was basically consistent with the L-H first-order reaction kinetics model.The degradation rate of NH_(3)increased slightly with the increase of photocatalyst load and light intensity.