Chemical Physics Letters ( IF 2.8 ) Pub Date : 2018-11-07 , DOI: 10.1016/j.cplett.2018.11.004
Quanchao Du , Jianqi Ma , Xianzhao Shao , Wei Wang , Guanghui Tian
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Core-shell structured TiO2@In2O3 with high visible-light photocatalytic activity have been successfully fabricated by solvothermal method. The as-obtained products were characterized by field transmission electron microscopy (TEM), X-ray diffraction (XRD) and UV-visible diffuse reflectance spectra (UV-vis DRS). Structural characterizations demonstrated that the In2O3 layers were comprised of nanocrystallites ca. 14 nm in size and displayed rough surfaces. The UV-vis DRS data showed that In2O3 greatly expanded the visible light absorption band edge of TiO2. The results revealed that the obtained TiO2@In2O3 with core-shell structure showed enhancement of the visible-light photocatalytic activity to degrade methyl orange (MO) comparing with the pure TiO2 and In2O3 products.
中文翻译:
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核-壳结构的TiO 2 @In 2 O 3用于高活性可见光光催化
溶剂热法成功制备了具有高可见光光催化活性的核-壳结构TiO 2 @In 2 O 3。所获得的产物通过场透射电子显微镜(TEM),X射线衍射(XRD)和UV-可见漫反射光谱(UV-vis DRS)进行表征。结构表征表明,In 2 O 3层由纳米晶体ca组成。尺寸为14 nm,表面粗糙。UV-vis DRS数据表明,In 2 O 3大大扩展了TiO 2的可见光吸收带边缘。结果表明,所得TiO 2 @In与纯TiO 2和In 2 O 3产物相比,具有核-壳结构的2 O 3表现出增强的可见光光催化活性以降解甲基橙(MO)。