Temperature-controlled oxidation of Ti3C2Tx MXene toward fluorinated anatase TiO2 for enhanced photocatalytic hydrogen evolution

Damayanti, Nabilla, Subagyo, Riki, Maashi, Saleha S., Agustina, Khawiyatur Riv'ah, Bahruji, Hasliza, Morgan, David J. ORCID: https://orcid.org/0000-0002-6571-5731, Meenakshisundaram, Sankar ORCID: https://orcid.org/0000-0002-7105-0203, Asikin-Mijan, Nurul, Santoso, Eko, Suprapto, Suprapto, Nugraha, Reva Edra, Wibowo, Atmanto Heru and Prasetyoko, Didik 2026. Temperature-controlled oxidation of Ti3C2Tx MXene toward fluorinated anatase TiO2 for enhanced photocatalytic hydrogen evolution. Journal of Alloys and Compounds , 191089. 10.1016/j.jallcom.2026.191089

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Abstract

In this study, TiO2/MX composites were fabricated via controlled air calcination of Ti3C2Tx MXene at 200-600 °C to tailor their phase composition and surface chemistry. The optimized TiO2/MX5 photocatalyst (500 °C) achieved the highest H₂ production rate of 287 μmol g-1 h-1, representing a 25.4 fold improvement over pristine MXene. The outstanding performance arises from a synergistic structural optimum combining high anatase crystallinity, preserved mesoporosity, abundant surface defects (ID/IG), and the retention of active Ti-F species, which collectively promote efficient charge separation and suppress carrier recombination. This work provides a simple and scalable strategy for engineering MXene-derived photocatalysts for solar-driven hydrogen production.

Item Type:	Article
Date Type:	Published Online
Status:	In Press
Schools:	Schools > Chemistry Research Institutes & Centres > Cardiff Catalysis Institute (CCI)
Additional Information:	Rights Retention Policy applied
Publisher:	Elsevier
ISSN:	0925-8388
Date of First Compliant Deposit:	14 September 2026
Date of Acceptance:	10 September 2026
Last Modified:	14 Sep 2026 19:30
URI:	https://orca.cardiff.ac.uk/id/eprint/189576

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