Synergetic effects of Ni and graphene as promotors for TiO2 as photocatalysts for efficient hydrogen production

Muhammad Ibadurrohman, Rahmatallah, Jenny Azzahra, Slamet, Alfian Ferdiansyah, Bonavian Hasiholan

Research output: Contribution to journalArticlepeer-review

Abstract

The synergetic effects of nickel (Ni) and graphene (G) as promotors for TiO2 on photocatalytic hydrogen production have been observed. Ni/TiO2, G/TiO2, and Ni-G/TiO2 were synthesized via a wet impregnation method. While G-TiO2 gave a similar H2 yield to that of the unmodified TiO2, Ni/TiO2 tripled it for the same reaction time. Surprisingly, Ni-G/TiO2 exhibits a 10-fold H2 production as compared to the unmodified case. A mechanism is proposed in which Ni and graphene cooperate for the betterment of photocatalytic hydrogen production by facilitating concerted trapping and relay of electrons, thereby realizing effective charge-carrier separation and conduction. Graphical abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1263-1270
Number of pages8
JournalMRS Communications
Volume12
Issue number6
DOIs
Publication statusPublished - 2022

Keywords

  • Energy generation
  • Graphene
  • Ni
  • Photochemical
  • Ti

Fingerprint

Dive into the research topics of 'Synergetic effects of Ni and graphene as promotors for TiO2 as photocatalysts for efficient hydrogen production'. Together they form a unique fingerprint.

Cite this