Size effect of Pt co-catalyst on photocatalytic efficiency of g-C3N4 for hydrogen evolution
Size effect of Pt co-catalyst on photocatalytic efficiency of g-C3N4 for hydrogen evolution
复制标题
Pt助催化剂对g-C3N4光催化析氢效率的尺寸效应
DOI：
10.1016/j.apsusc.2018.09.061
复制
发表时间：
2019-01
影响因子：
6.7
通讯作者：
朱云庆
中科院分区：
文献类型：
--
作者：
朱云庆
采用原位光还原法合成了石墨碳氮（g-C3 N4）/Pt复合催化剂，并将其用作可见光光催化剂。通过控制Pt前驱体的诱导量，可以控制Pt助催化剂从单个原子到纳米团簇的尺寸。结果表明，与纳米团簇相比，Pt负载量为0.1wt%Pt的Pt 0.1-CN表现出明显的光催化析氢能力，其特征为单原子Pt。在可见光照射下（λ > 420 nm），单原子Pt作为助催化剂的Pt0.1-CN的H2生成量高达473.82 μmol mg− 1 Pt。光催化性能的增强主要归因于高光吸收效率、有效的电荷分离和Pt原子活性位的高度分散的协同作用。研究结果表明，在g-C3 N4上负载Pt单原子可以获得最大的Pt原子利用率，提高其光催化性能。
Graphitic carbon nitride (g-C3N4) with Pt co-catalyst was synthesized by in-situ photoreduction and used as a visible light photocatalyst. The size of Pt co-catalyst can be controlled form single atoms to nano-clusters by the induced amount of Pt precursor. The results indicated that compared with nano-clusters, the Pt0.1-CN (with 0.1 wt% Pt loading amount) which is characterized as single-atom Pt exhibits a pronounced photocatalytic hydrogen evolution capability. For Pt0.1-CN with single-atom Pt as co-catalyst, the H2generation is up to 473.82 µmol mg−1ptunder visible light irradiation (λ > 420 nm). The enhanced photocatalytic performance is mainly attributed to the synergistic effect of high light adsorption efficiency, effective charge separation, and high dispersed active sites of Pt atoms. The results of this work highlighted that loading g-C3N4with Pt single atoms will achieve a maximum utilization efficiency of Pt atoms and an improvement photocatalytic performance.
登录
查看更多内容
影响因子：
3.7
作者：
Tao Sun;Hai-Yun Jiang;Chenxia Ma;Fang Mao;Bin Xue
通讯作者：
Tao Sun;Hai-Yun Jiang;Chenxia Ma;Fang Mao;Bin Xue
通过简单的原位光还原策略制备高度分散的铂沉积多孔 g-C3N4 及其对水性 4-氟苯酚降解的优异可见光光催化活性
影响因子：
16.5
作者：
Zhenxing Zeng;Kexin Li;Kai Wei;Yuhua Dai;Liushui Yan;Huiqin Guo;Xubiao Luo
通讯作者：
Xubiao Luo
影响因子：
7.2
作者：
Surakerk Onsuratoom;S. Chavadej;T. Sreethawong
通讯作者：
Surakerk Onsuratoom;S. Chavadej;T. Sreethawong
影响因子：
13.6
作者：
Yunjin Yao;Jiacheng Qin;Hao Chen;F. Wei;Xueting Liu;Jianlong Wang;Shaobin Wang
通讯作者：
Yunjin Yao;Jiacheng Qin;Hao Chen;F. Wei;Xueting Liu;Jianlong Wang;Shaobin Wang
DOI：
10.1021/jz500238z
发表时间：
2014-03
期刊：
The journal of physical chemistry letters
影响因子：
--
作者：
Rui Liu;Jing-fu Liu;Zongmian Zhang;Li-qiang Zhang;Jiefang Sun;Mengjun Sun;G. Jiang
通讯作者：
Rui Liu;Jing-fu Liu;Zongmian Zhang;Li-qiang Zhang;Jiefang Sun;Mengjun Sun;G. Jiang