H2 production using CuS/g-C3N4 nanocomposites under visible light

verfasst von
Mohammad W. Kadi, Reda M. Mohamed, Adel A. Ismail, Detlef Bahnemann
Abstract

Hydrogen production over a heterogeneous photocatalyst employing visible light is a favorable approach for renewable and sustainable clean energy in large scale. In this contribution, CuS/g-C

3N

4 nanocomposites have been constructed through a hydrothermal approach at various CuS contents. XRD diffraction findings exhibited that hexagonal CuS was successfully formed and incorporated onto the g-C

3N

4. TEM images exhibited that CuS nanoparticles are orderly dispersed onto g-C

3N

4 nanosheet with a spherical shape. The photocatalytic performance of the obtained CuS/g-C

3N

4 nanocomposites was assessed in the presence of glycerol as holes scavenger for H

2 production under visible light illumination. The photocatalytic activity for H

2 production was promoted by boosting the CuS contents, and it was increased up to the maximum molecular H

2 production value of 12,000 µmol g

−1 using 10% CuS/g-C

3N

4 nanocomposite. The H

2 yield is higher ~ 20 and 30 times than either g-C

3N

4 or CuS. Moreover, H

2 production yield increases to 16,000 µmol g

−1 with the increase the loading of 10% CuS/g-C

3N

4 photocatalyst and it is higher ~ 26 and 40 times than either g-C

3N

4 or CuS, respectively. The 10% CuS/g-C

3N

4 nanocomposite indicated stability and durability after five times cycles through visible light illumination.

Organisationseinheit(en)
Institut für Technische Chemie
Externe Organisation(en)
King Abdulaziz University
Central Metallurgical Research and Development Institute, Cairo
Staatliche Universität Sankt Petersburg
Typ
Artikel
Journal
Applied Nanoscience (Switzerland)
Band
10
Seiten
223-232
Anzahl der Seiten
10
ISSN
2190-5509
Publikationsdatum
08.06.2019
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Biotechnologie, Atom- und Molekularphysik sowie Optik, Werkstoffwissenschaften (sonstige), Physikalische und Theoretische Chemie, Zellbiologie, Elektrotechnik und Elektronik
Ziele für nachhaltige Entwicklung
SDG 7 – Erschwingliche und saubere Energie
Elektronische Version(en)
https://doi.org/10.1007/s13204-019-01073-7 (Zugang: Geschlossen)