Improvement of hydrogen production under solar light using cobalt (II) phosphide hydroxide co-doped g-C3N4 photocatalyst
Author | Thang P.Q. |
Author | Jitae K. |
Author | Nguyen T.D. |
Author | Huong P.T. |
Author | Viet N.M. |
Author | Al Tahtamouni T.M. |
Available date | 2020-04-01T06:59:41Z |
Publication Date | 2019 |
Publication Name | Rendiconti Lincei |
Resource | Scopus |
ISSN | 20374631 |
Abstract | Graphitic carbon nitride (g-C3N4) has been extensively studied as a model of photocatalyst material for water splitting. This study investigates potential of cobalt (II) phosphide hydroxide co-doped g-C3N4 (Co-P/C3N4) for solar water splitting to produce hydrogen gas as a clean energy source. Characterizations of the materials were done using X-ray diffraction, Scanning Electron Microscopy, X-ray Photoelectron Spectroscopy, and UV–visible spectroscopy (UV–Vis). Under solar light, the hydrogen production rates per hour using Co-P/C3N4 were 386.8 µmol/g which is 14-fold higher than that of g-C3N4 (28.1 µmol/g). The co-doping of cobalt (II) phosphide hydroxide onto g-C3N4 rapidly improved light harvesting capacity and photo-generated charge carrier separation, leading to increase photocatalytic H2 production. In addition, the reusability of Co-P/C3N4 was confirmed by performing the photocatalytic hydrogen production for five cycles. The material consistently produced H2 without any significant loss in hydrogen productivity. Based on these results, Co-P/C3N4 could be utilized as promising photocatalyst material for production of clean energy. |
Sponsor | This work was supported by Qatar University under Grant Number GCC-2017-007. |
Language | en |
Publisher | Springer |
Subject | Clean energy Cobalt (II) phosphide hydroxide g-C3N4 Hydrogen production Photocatalytic |
Type | Article |
Pagination | 699-706 |
Issue Number | 4 |
Volume Number | 30 |
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