biostudies-literaturePurbayanto MAKNarodowe Centrum NaukiPolitechnika Warszawska21547-21558https://www.ebi.ac.uk/biostudies/studies/S-EPMC11483757biostudies-literatureUnknown40(41)TiO<sub>2</sub>/MXene heterostructure has garnered significant interest as a photocatalyst due to its large surface area and efficient charge carrier separation at the interface. However, current synthesis methods produce TiO<sub>2</sub> without clear crystal faceting and often require complicated postprocessing step, limiting its practical applications. We demonstrate a facile and controlled microwave-assisted hydrothermal synthesis for transforming multilayered Ti<sub>3</sub>CN MXene to a truncated-bipyramidal TiO<sub>2</sub>/Ti<sub>3</sub>CN heterostructure. The resulting TiO<sub>2</sub> nanocrystals at the Ti<sub>3</sub>CN surface exhibited crystalline anatase truncated bipyramids, exposing {001} and {101} facets. We further tailored an indirect optical band gap of the TiO<sub>2</sub>/Langmuir : the ACS journal of surfaces and colloidsMicrowave-Assisted Hydrothermal Synthesis of Photocatalytic Truncated-Bipyramidal TiO<sub>2</sub>/Ti<sub>3</sub>CN Heterostructures Derived from Ti<sub>3</sub>CN MXene.PMC11483757UMO-2022/45/N/ST5/02472Chandel MWojcik AMochalin VNMoszczynska DBury DJastrzebska AMTabassum ANaguib MPurbayanto MAKfalseMicrowave-Assisted Hydrothermal Synthesis of Photocatalytic Truncated-Bipyramidal TiO<sub>2</sub>/Ti<sub>3</sub>CN Heterostructures Derived from Ti<sub>3</sub>CN MXene.TiO<sub>2</sub>/MXene heterostructure has garnered significant interest as a photocatalyst due to its large surface area and efficient charge carrier separation at the interface. However, current synthesis methods produce TiO<sub>2</sub> without clear crystal faceting and often require complicated postprocessing step, limiting its practical applications. We demonstrate a facile and controlled microwave-assisted hydrothermal synthesis for transforming multilayered Ti<sub>3</sub>CN MXene to a truncated-bipyramidal TiO<sub>2</sub>/Ti<sub>3</sub>CN heterostructure. The resulting TiO<sub>2</sub> nanocrystals at the Ti<sub>3</sub>CN surface exhibited crystalline anatase truncated bipyramids, exposing {001} and {101} facets. We further tailored an indirect optical band gap of the TiO<sub>2</sub>/2024-01-01T00:00:00Z2024 Oct2025-04-04T19:45:48.081Z2025-04-04T19:45:48.081ZS-EPMC114837573936363910.1021/acs.langmuir.4c02444