CAJ | 학술논문

采用模板辅助电场诱导沉积和加速蒸发诱导共沉积两种方法,用聚苯乙烯微球制备了高度有序的二元胶体晶体结构.通过溶胶凝胶法填充这些模板结构,并经过热处理后获得具有复杂有序多孔结构的二氧化硅薄膜.SEM结果表明,所得薄膜较好地复制了胶体晶体模板的结构,薄膜孔径与微球直径相比有一定程度的收缩.与普通多孔膜相比,这种有序多孔膜具有更复杂的结构以及更高的比表面积,在分离提纯、催化剂及光子带隙材料等领域具有一定的应用前景.
채용모판보조전장유도침적화가속증발유도공침적량충방법,용취분을희미구제비료고도유서적이원효체정체결구.통과용효응효법전충저사모판결구,병경과열처리후획득구유복잡유서다공결구적이양화규박막.SEM결과표명,소득박막교호지복제료효체정체모판적결구,박막공경여미구직경상비유일정정도적수축.여보통다공막상비,저충유서다공막구유경복잡적결구이급경고적비표면적,재분리제순、최화제급광자대극재료등영역구유일정적응용전경.
Binary colloidal crystals consisted of polystyrene microspheres were fabricated via template-assisted electric field induced assembly and accelerated evaporation induced co-assembly, and the corresponding complex ordered mesoporous films were synthesised by sol-gel technology in combination with heat treatments. SEM investigation revealed that the structure of colloidal crystal templates was completely maintained, and the pore size of the films shrank slightly during the sintering process. Compared to usual porous films, the prepared complex ordered mesoporous films exhibited more complicated structures and larger specific surface area, whose applications can be found in many fields, such as catalyst, seperation, and photonic bandgap materials.