School of Chemical Engineering, Changchun University of Technology , 2055 Yanan Street, Changchun 130012, People's Republic of China.
Environ Sci Technol. 2013 Oct 15;47(20):11562-8. doi: 10.1021/es4025595. Epub 2013 Sep 26.
TiO2 nanoparticles were successfully fabricated on electrospun polyacrylonitrile (PAN) nanofibers via the coupling of electrospinning and hydrothermal pathway. A straightforward photocatalysis oxidation process has been developed for simultaneous desulfurization and denitrification of flue gas using the TiO2-PAN photocatalyst. Also, the influences of some important operating parameters, such as titanium loading content of catalyst, flue gas humidity, flue gas flow, and inlet flue gas temperature on removal efficiencies of SO2 and NO were investigated. The results demonstrated that removal efficiencies of 99.3% for SO2 and 71.2% for NO were attained under the following optimal experiment conditions: titanium loading content, 6.78 At %; gas flow rate, 200 mL/min; flue gas humidity, 5%; inlet flue gas temperature, 40 °C. Furthermore, the presumed reaction mechanism of SO2 and NO removal using TiO2-PAN photocatalyst under UV light was proposed.
通过静电纺丝和水热途径的结合，成功地在电纺聚丙烯腈（PAN）纳米纤维上制备了 TiO2 纳米颗粒。利用 TiO2-PAN 光催化剂，开发了一种简单的光催化氧化工艺，用于同时脱硫脱硝。此外，还研究了一些重要操作参数对 SO2 和 NO 去除效率的影响，如催化剂的钛负载量、烟气湿度、烟气流量和入口烟气温度。结果表明，在以下最佳实验条件下，SO2 的去除效率达到 99.3%，NO 的去除效率达到 71.2%：钛负载量，6.78At%；气体流速，200mL/min；烟气湿度，5%；入口烟气温度，40°C。此外，还提出了在紫外光下使用 TiO2-PAN 光催化剂去除 SO2 和 NO 的假定反应机制。
