Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
Chem Commun (Camb). 2016 Jul 7;52(53):8239-42. doi: 10.1039/c6cc03739a. Epub 2016 Jun 10.
Ultrathin SnNb2O6 nanosheets with a thickness of ∼3 nm were synthesized via a facile hydrothermal route using ultrathin K4Nb6O17 nanosheets as the precursor. This ultrathin nanosheets with a large specific surface area of 71.1 m(2) g(-1) showed improved visible-light photocatalytic H2-production activity in lactic acid aqueous solution, which is about 4 and 14 times higher than that of 50 nm-thick SnNb2O6 nanosheets and bulk SnNb2O6 powders, respectively. The higher activity of ultrathin nanosheets was mainly attributed to their larger specific surface area and much better charge transfer efficiency.
通过使用超薄 K4Nb6O17 纳米片作为前体的简便水热路线，合成了厚度约为 3nm 的超薄 SnNb2O6 纳米片。这种具有 71.1m(2)g(-1) 大比表面积的超薄纳米片在乳酸水溶液中表现出了提高的可见光光催化 H2 产生活性，分别比 50nm 厚的 SnNb2O6 纳米片和体相 SnNb2O6 粉末高 4 倍和 14 倍。超薄纳米片具有更高的活性，主要归因于其更大的比表面积和更好的电荷转移效率。
