Shell-engineering of hollow g-C3N4 nanospheres via copolymerization for photocatalytic hydrogen evolution.

Incorporation of aromatic motifs into the nanosized shells of hollow carbon nitride nanospheres has been reported to develop functional photosynthetic structures for solar energy application. This modification results in an extended π-conjugation system, red-shift of the optical absorption, and an improved charge separation in the shell, while still retaining the unique hollow polymeric nanoarchitectures. This strategy enables the tuning of the semiconductor properties of the shell substance in the hollow carbon nitride nanostructures to generate the redox species to enhance photocatalytic activity for hydrogen evolution using visible light.

据报道，将芳香基序引入空心氮化碳纳米球的纳米尺寸壳层中，可开发用于太阳能应用的功能性光合结构。这种修饰导致π共轭体系扩展、光吸收红移以及壳层中电荷分离得到改善，同时仍保留独特的空心聚合物纳米结构。这一策略能够调节空心氮化碳纳米结构中壳层物质的半导体性质，以产生氧化还原物质，从而提高利用可见光析氢的光催化活性。