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Controllable Syntheses of Hierarchical WO3 Films Consisting of Orientation-Ordered Nanorod Bundles and Their Photocatalytic Properties
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2018-01-08 00:00:00 , DOI: 10.1021/acs.cgd.7b01254 Shuai Zhang 1 , Shufang Wu 1 , Jinming Wang 1 , Jingpeng Jin 1 , Tianyou Peng 1
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2018-01-08 00:00:00 , DOI: 10.1021/acs.cgd.7b01254 Shuai Zhang 1 , Shufang Wu 1 , Jinming Wang 1 , Jingpeng Jin 1 , Tianyou Peng 1
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A series of hierarchical hexagonal WO3 (h-WO3) films consisting of orientation-ordered nanorod bundles paralleling the fluorine-doped tin oxide (FTO) glass substrate were synthesized through a hydrothermal reaction of Na2WO4 solution (pH 2.30). By varying the Na2WO4 concentration, the aspect ratios of the h-WO3 nanorods and the shapes of the orderly stacked nanorod bundles can be conveniently adjusted, which then influence the morphology of the resultant hierarchical h-WO3 films on the FTO substrate. With enhancing the Na2WO4 concentration, the nanorod bundles are changed from a flat shape into a fusiform one to form h-WO3 film with a relatively smaller porosity and smoother surface. Compared with the h-WO3 film with fusiform-shaped nanorod bundles, the h-WO3 film with flat-shaped ones exhibits better photocatalytic O2 generation activity as the direct consequences of its larger specific surface area, higher roughness, and better light absorption property.
中文翻译：
定向排列的纳米棒束组成的WO 3分层薄膜的可控合成及其光催化性能
通过Na 2 WO 4溶液（pH 2.30）的水热反应，合成了一系列由平行于氟掺杂二氧化锡（FTO）玻璃基板的取向顺序纳米棒束组成的六边形六方WO 3（h-WO 3）分层膜。通过改变Na 2 WO 4的浓度，可以方便地调整h-WO 3纳米棒的长宽比和有序堆叠的纳米棒束的形状，从而影响FTO上所得的分层h-WO 3膜的形貌。基质。随着Na 2 WO 4的增强纳米棒束的浓度从扁平状变为纺锤形，以形成具有相对较小的孔隙率和较光滑的表面的h-WO 3膜。与H-WO相比3膜与纺锤形状纳米棒束，所述H-WO 3膜与平板状的那些具有更好的光催化Ò 2生成活性为较大的比表面积的直接后果，更高的粗糙度，和更好的光吸收性能。
更新日期：2018-01-08
中文翻译：
定向排列的纳米棒束组成的WO 3分层薄膜的可控合成及其光催化性能
通过Na 2 WO 4溶液（pH 2.30）的水热反应，合成了一系列由平行于氟掺杂二氧化锡（FTO）玻璃基板的取向顺序纳米棒束组成的六边形六方WO 3（h-WO 3）分层膜。通过改变Na 2 WO 4的浓度，可以方便地调整h-WO 3纳米棒的长宽比和有序堆叠的纳米棒束的形状，从而影响FTO上所得的分层h-WO 3膜的形貌。基质。随着Na 2 WO 4的增强纳米棒束的浓度从扁平状变为纺锤形，以形成具有相对较小的孔隙率和较光滑的表面的h-WO 3膜。与H-WO相比3膜与纺锤形状纳米棒束，所述H-WO 3膜与平板状的那些具有更好的光催化Ò 2生成活性为较大的比表面积的直接后果，更高的粗糙度，和更好的光吸收性能。
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