采用纳米复刻(浇筑)法制备一系列介孔CuFe2O4.通过X射线衍射(XRD)、N2物理吸附、透射电镜(TEM)等研究了不同制备条件对有序介孔CuFe2O4结构形成的影响.研究发现，作为对比，柠檬酸法仅能合成普通的四方相CuFe2O4纳米颗粒，但是硬模板法则能合成出高温淬火才能形成的立方晶相介孔结构CuFe2O4.进一步研究了该催化剂同时催化去除碳烟和氮氧化合物(NOx)的性能，研究发现，与柠檬酸法合成的普通CuFe2O4催化剂相比，介孔结构CuFe2O4不仅大幅降低了碳烟起燃温度(324降低到278℃)，而且将N2的最高产率从5.9%提升到了92.2%.基于原位漫反射红外(in-situ DRIFTS)的机理分析研究表明，合成过程中采用NaOH除去硬模板的过程中会在介孔CuFe2O4表面造成大量残留的钠盐，这种高分散的钠物种促进了NOx的吸附并转化为硝酸盐物种，从而促进碳烟氧化以及NOx转化.但是与表面Na修饰的CuFe2O4相比，体相Na掺杂的CuFe2O4虽然具有更好的有序介孔结构，但是其氧化性能下降，进一步也导致了NOx的催化还原性能的下降.

Degradation of brominated flame retardants (BFRs) in waste printed circuit boards (WPCBs) occurred due to mechanical force during the crushing process. In this study, a planetary ball-milling simulation experiment was designed to explore the mechanochemical debromination process of BFRs in WPCBs. The results showed that CaO had a better debromination performance than MgO and the mixture of Fe + SiO2, and high revolution speed and low mass ratio of WPCBs to CaO promoted the degradation of BFRs. After milling for 1 h, the particle size distribution was stable while the debromination efficiency increased with the increase of milling time. Ball milling promoted the migration of bromine from the inside to the new surface of WPCBs powder, and submicron particles adhered to the micron size aggregates. The polybrominated diphenyl ethers (PBDEs) detection showed that the concentrations of most PBDE congeners decreased with the increase of milling time, and a possible degradation pathway was proposed according to the experimental results. All the results provided new data for the mechanism of degradation of BFRs in WPCBs during the mechanical crushing process.

Three-dimensional mesoporous cubic spinel Co3O4 was synthesized by nanocasting method with KIT-6 as the hard template.It shows similar ordered three-dimension mesoporous structure according to the results of X-ray diffraction (XRD),Brunauer,Emmett,Teller (BET) specific surface area and transmission electron microscope(TEM).The surface area of mesoporous Co3O4 increases to 121 m2/g,which is about 5 times of Co3O4 synthesized through citric method.It shows better performance in soot oxidation under air.The ignite temperature of soot under NOx/O2 atmosphere decreases about 22 ℃ and the yield of N2 has been significantly improved.The correlation of mesoporous structure and activity are investigated through temperature programmed reaction,showing that the better redox ability improves soot oxidation ability.The morphology properties of mesoporous Co3O4 facilitates the absorption of NOx and further improves the combustion of soot under NOx.

We demonstrate a simple surface sodium functionalization effect introduced during silica removal step for controlling the enhanced simultaneous catalytic removal of soot and NOx by ordered mesoporous Co3O4.