Department of Civil and Environmental Engineering, National University of Kaohsiung, Kaohsiung, Taiwan, ROC.
J Hazard Mater. 2011 Dec 15;197:254-63. doi: 10.1016/j.jhazmat.2011.09.083. Epub 2011 Oct 5.
The aim of this research was to use metal catalysts supported on activated carbon fibers (ACFs) to remove 16 species of polycyclic aromatic hydrocarbons (PAHs) from incineration flue gas. We tested three different metal loadings (0.11 wt%, 0.29 wt%, and 0.34 wt%) and metals (Pt, Pd, and Cu), and two different pretreatment solutions (HNO(3) and NaOH). The results demonstrated that the ACF-supported metal catalysts removed the PAHs through adsorption and catalysis. Among the three metals, Pt was most easily adsorbed on the ACFs and was the most active in oxidation of PAHs. The mesopore volumes and density of new functional groups increased significantly after the ACFs were pretreated with either solutions, and this increased the measured metal loading in HNO(3)-0.48% Pd/ACFs and NaOH-0.52% Pd/ACFs. These data confirm that improved PAH removal can be achieved with HNO(3)-0.48% Pd/ACFs and NaOH-0.52% Pd/ACFs.
本研究旨在使用负载在活性炭纤维（ACF）上的金属催化剂去除焚烧烟气中的 16 种多环芳烃（PAHs）。我们测试了三种不同的金属负载量（0.11wt%、0.29wt%和 0.34wt%）和金属（Pt、Pd 和 Cu），以及两种不同的预处理溶液（HNO3 和 NaOH）。结果表明，负载在 ACF 上的金属催化剂通过吸附和催化作用去除了 PAHs。在这三种金属中，Pt 最容易被 ACFs 吸附，并且在 PAHs 的氧化中最活跃。ACFs 经两种溶液预处理后，中孔体积和新官能团密度显著增加，这导致 HNO3-0.48%Pd/ACFs 和 NaOH-0.52%Pd/ACFs 中测定的金属负载量增加。这些数据证实，使用 HNO3-0.48%Pd/ACFs 和 NaOH-0.52%Pd/ACFs 可以实现更好的 PAH 去除效果。
