期刊
ADVANCED FUNCTIONAL MATERIALS
卷 23, 期 23, 页码 3008-3014出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201203287
关键词
carbon nitrides; nanostructures; acidification; photocatalysis; water splitting; templates
类别
资金
- National Basic Research Program of China [2013CB632405]
- National Natural Science Foundation of China [21033003, 21173043]
- Department of Education of Fujian Province in China
Nanostructured covalent carbon nitride (CN) holds great promise for artificial photosynthesis, but its nanotexturation using templating methods is restricted by the weak binding affinities of neutral silica templates towards basic precursors that are kinetically difficult to diffuse into the nanopores of the templates. This weak affinity leads to an incomplete inclusion of the CN precursors into the nanostructured silica templates, and consequently, yields a defective replica of the parent porous structures. Here, this issue is addressed through the development of an innovative synthetic strategy to facilitate the sufficient inclusion of CN precursors in silica templates, by taking advantage of the surface acidification of silica and sonication-promoted insertion. The ordered mesoporous CN (ompg-CN) fabricated using SBA-15 mesozeolite as the template has been demonstrated to show a better 2D mesoporous hexagonal framework, larger surface area, and higher photocatalytic activity than that synthesized by the traditional method. This innovative strategy can in general be expanded to other silica templates with various nanostructures, enabling the creation of stable polymeric CN nanostructures with maximized material and structure functions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据