| Autor: |
Guan, Yuanhao, Hu, Shaozheng, Li, Ping, Zhao, Yanfeng, Wang, Fei, Kang, Xiaoxue |
| Předmět: |
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| Zdroj: |
NANO; Jul2019, Vol. 14 Issue 7, pN.PAG-N.PAG, 13p |
| Abstrakt: |
In this work, a highly efficient p-type Cu3P/ n -type g-C3N4 heterojunction photocatalyst was synthesized in situ. XRD, UV–Vis, N2 adsorption, TEM, XPS, PL, and EIS are used to characterize the as-prepared catalysts. The results show that Cu3P nanoparticles are highly dispersed onto the g-C3N4 surface, which obviously promotes the separation rate of electrons and holes. The charge transfer between Cu3P and g-C3N4 follows the "Z-scheme" mechanism. The as-prepared Cu3P/g-C3N4 heterojunction photocatalyst displays the ammonium ion production rate of 7.5 mg L − 1 h − 1 g cat − 1 , which is 28.8 times higher than that of neat g-C3N4, as well as good catalytic stability. The possible reaction mechanism is proposed. A highly efficient direct Z-scheme Cu3P/g-C3N4 heterojunction photocatalyst (Cu3P(2%)-GCN) with outstanding N2 photofixation ability was synthesized in-situ for the first time. Cu3P(2%)-GCN displayed the NH4+ production rate of 7.5 mg L − 1 h − 1 g cat − 1 , which is 28.8 times higher than that of the neat g-C3N4, as well as the good catalytic stability. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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