Carbon dots enhance the stability of CdS for visible-light-driven overall water splitting
Carbon dots enhance the stability of CdS for visible-light-driven overall water splitting
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碳点增强了 CdS 的稳定性,用于可见光驱动的整体水分解
DOI:
10.1016/j.apcatb.2017.05.049
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发表时间:
2017-11
影响因子:
22.1
通讯作者:
Kang Zhenhui
中科院分区:
文献类型:
--
作者:
Zhu Cheng;Liu Changan;Zhou Yunjie;Fu Yijun;Guo Sijie;Li Hao;Zhao Siqi;Huang Hui;Liu Yang;Kang Zhenhui
Cadmium sulfide (CdS) has long time been one of the most promising inorganic photocatalysts for hydrogen production driven by visible light. However, the photocorrosion of CdS is the most serious problem which constrains its development. Here, we report the design and fabrication of a carbon dots-cadmium sulfide (CDs-CdS) nanocomposite, showing significant photocatalytic water splitting properties with impressive stability without requirement for any sacrificial agents or cocatalysts. The highest hydrogen production rate was obtained for about 2.55 μmol h−1, with an oxygen evolution rate for about 0.52 μmol h−1, when the concentration of CDs in the sample is 0.03 gCDs/gcatalyst. Even the produced H2and O2are not equal to the stoichiometric ratio of 2:1 (H2:O2), the CDs-CdS nanocomposite shows greater stability (8-time repetitive catalytic experiments) than the CdS catalysts reported up to now (without sacrificial agents or cocatalysts). It is also inspiring that when we increased the concentration of CDs in the catalysts, the produced H2and O2were gradually adjusted to meet the stoichiometric ratio of 2:1 in spite of low hydrogen production rate (0.13 μmol h−1).
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影响因子:
22.1
作者:
Lim, Jonghun;Monllor-Satoca, Damian;Choi, Wonyong
通讯作者:
Choi, Wonyong
影响因子:
5
作者:
Yang Jinghai;Wang Jian;Li Xiuyan;Wang D;an;Song Hang
通讯作者:
Song Hang
影响因子:
6.7
作者:
Li, Haitao;Liu, Ruihua;Kang, Zhenhui
通讯作者:
Kang, Zhenhui
影响因子:
5.7
作者:
Maeda, Kazuhiko;Domen, Kazunari
通讯作者:
Domen, Kazunari
DOI:
10.1039/c2cy20027a
发表时间:
2012-05
期刊:
Catalysis Science & Technology
影响因子:
--
作者:
Fan, Wenqing;Zhang, Qinghong;Deng, Weiping;Wang, Ye
通讯作者:
Wang, Ye