Sulfur-doped covalent triazine-based frameworks for enhanced photocatalytic hydrogen evolution from water under visible light
Sulfur-doped covalent triazine-based frameworks for enhanced photocatalytic hydrogen evolution from water under visible light
复制标题
硫掺杂共价三嗪基框架可增强可见光下从水中光催化析氢的能力
DOI：
10.1039/c6ta04711d
复制
发表时间：
2016-01-01
影响因子：
11.9
通讯作者：
Su, Wenyue
中科院分区：
文献类型：
--
作者：
Li, Liuyi;Fang, Wei;Su, Wenyue
在这里，我们第一次表明，共价三嗪基框架（CTF）的光催化活性可以有效地提高使用一个简单的硫掺杂方法。在可见光照射下，硫掺杂的CTFs显示出上级的光催化活性和稳定性，从水的析氢比原始的CTFs和g-C3 N4。催化效率的显著提高归因于骨架中的硫掺杂，这导致可见光的吸收增强，自由电荷载流子的复合减少，以及光生电子空穴的快速分离和传输。
Here, we show for the first time that the photocatalytic activity of covalent triazine-based frameworks (CTFs) can be efficiently improved using a facile sulfur-doping approach. The sulfur-doped CTFs show superior photocatalytic activity and stability in hydrogen evolution from water under visible light irradiation over pristine CTFs and g-C3N4. The significantly improved catalytic efficiency was attributed to sulfur-doping in the frameworks, which results in enhanced adsorption of visible light, reduced recombination of free charge carriers, and rapid separation and transportation of photogenerated electronholes.