CAJ | 학술논문

以硝酸铬和硝酸铈作金属源、用介孔氧化硅作硬模板，通过真空辅助浸渍法制备得到高比表面积有序介孔Cr2 O3－CeO2复合氧化物，采用XRD、TEM、UV－Vis和N2吸附－脱附技术表征了样品的物理化学性质．结果表明，经过500℃灼烧处理的样品（ meso－Cr－Ce ）孔壁晶化度高且虫孔结构发达，比表面积达160 m2／g，平均孔径为7．2 nm，在紫外和可见光区还具有优良的吸光性能．这些特性将使该材料在催化领域特别是光催化领域有着广阔的应用前景．
이초산락화초산시작금속원、용개공양화규작경모판，통과진공보조침지법제비득도고비표면적유서개공Cr2 O3－CeO2복합양화물，채용XRD、TEM、UV－Vis화N2흡부－탈부기술표정료양품적물이화학성질．결과표명，경과500℃작소처리적양품（ meso－Cr－Ce ）공벽정화도고차충공결구발체，비표면적체160 m2／g，평균공경위7．2 nm，재자외화가견광구환구유우량적흡광성능．저사특성장사해재료재최화영역특별시광최화영역유착엄활적응용전경．
Highly surface area ordered mesoporous chromium oxide and cerium oxide composite ( meso-Cr-Ce) was synthesized via a vacuum assisted impregnation method with three dimensionally ordered mesoporous silica as hard template, chromium nitrate and cerium nitrate as metal sources.The physicochemical properties of meso-Cr-Ce were characterized by XRD, TEM, N2 adsorption-desorption and ultraviolet visible diffuse re-flectance spectroscopy.The results show that meso-Cr-Ce possessed a typical mesoporous structure with highly crystalline wall.Its surface area was up to 160 m2/g and the average pore size was ca.7.2 nm.The meso-Cr-Ce sample exhibits excellent UV and visible light responsive property, which would be useful in optical and catalytic applications.