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Preparation of rGO/FeMoO4 as high-performance photocatalyst for degradation of malachite green, phenol and H2 evolution under natural sunlight
Univ Jeddah, Saudi Arabia.
Univ Jeddah, Saudi Arabia.
Amran Univ, Yemen.
Linköping University, Department of Science and Technology, Physics, Electronics and Mathematics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-9566-041X
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2022 (English)In: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 47, no 77, p. 32955-32968Article in journal (Refereed) Published
Abstract [en]

FeMoO4 and rGO/FeMoO4 nanocomposites were successfully prepared by a facile hydro-thermal method. The XRD results confirmed that the FeMoO4 has a monometallic b-FeMoO4 crystalline phase while the rGO/FeMoO4 showed both monometallic a-and b-FeMoO4 phases where b-FeMoO4 is the predominant phase. The reduction of graphene oxide (GO) to reduced graphene oxide (rGO) was performed without using any chemical reductions. UV-Vis results showed that the visible light absorption and band gap energy were enhanced after the addition of rGO. The prepared samples were successfully applied for degradation of malachite green (MG) and phenol (Ph) and for H2 evolution under natural solar light irradiation. All the nanocomposites showed higher photocatalytic activities compared with pure FeMoO4 photocatalyst, and the 10%rGO/FeMoO4 gave the highest photodegradation performance for MG and Ph and for H2 evolution. The photodegradation results revealed that the rGO content played the crucial factor in the photodegradation of MG and Ph, and H2 evolution. The mineralization (TOC), photodegradation mechanism and degradation kinetics of MG and Ph were discussed.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD , 2022. Vol. 47, no 77, p. 32955-32968
Keywords [en]
Photodegradation; Sunlight illumination; Malachite green; Phenol; H2 evolution; rGO; FeMoO4
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-189492DOI: 10.1016/j.ijhydene.2022.07.189ISI: 000864760800005OAI: oai:DiVA.org:liu-189492DiVA, id: diva2:1706186
Note

Funding Agencies|University of Jeddah, Jeddah, Saudi Arabia [UJ-21-ICI-11]

Available from: 2022-10-25 Created: 2022-10-25 Last updated: 2024-01-08

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The full text will be freely available from 2024-08-19 09:27
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