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

Muhammad Ibadurrohman; Rahmatallah; Jenny Azzahra; Alfian Ferdiansyah; Bonavian Hasiholan

doi:10.1557/s43579-022-00305-2

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 journal › Article › peer-review

1 Citation (Scopus)

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 language	English
Pages (from-to)	1263-1270
Number of pages	8
Journal	MRS Communications
Volume	12
Issue number	6
DOIs	https://doi.org/10.1557/s43579-022-00305-2
Publication status	Published - 2022

Keywords

Energy generation
Graphene
Ni
Photochemical
Ti

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1557/s43579-022-00305-2

Cite this

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title = "Synergetic effects of Ni and graphene as promotors for TiO2 as photocatalysts for efficient hydrogen production",

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.]",

keywords = "Energy generation, Graphene, Ni, Photochemical, Ti",

author = "Muhammad Ibadurrohman and Rahmatallah and Jenny Azzahra and Slamet and Alfian Ferdiansyah and Bonavian Hasiholan",

note = "Funding Information: This research was funded by The Directorate of Research and Development Universitas Indonesia (Risbang UI) through International Indexed Publication Grant (PUTI Q2 2022) with contract No: NKB-700/UN2.RST/HKP.05.00/2022. Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive licence to The Materials Research Society.",

year = "2022",

doi = "10.1557/s43579-022-00305-2",

language = "English",

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T1 - Synergetic effects of Ni and graphene as promotors for TiO2 as photocatalysts for efficient hydrogen production

AU - Ibadurrohman, Muhammad

AU - Rahmatallah,

AU - Azzahra, Jenny

AU - Slamet, null

AU - Ferdiansyah, Alfian

AU - Hasiholan, Bonavian

N1 - Funding Information: This research was funded by The Directorate of Research and Development Universitas Indonesia (Risbang UI) through International Indexed Publication Grant (PUTI Q2 2022) with contract No: NKB-700/UN2.RST/HKP.05.00/2022. Publisher Copyright: © 2022, The Author(s), under exclusive licence to The Materials Research Society.

PY - 2022

Y1 - 2022

N2 - 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.]

AB - 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.]

KW - Energy generation

KW - Graphene

KW - Ni

KW - Photochemical

KW - Ti

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