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Tuning the Photocatalytic Activity of Ti-Based Metal–Organic Frameworks through Modulator Defect-Engineered Functionalization

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Tuning the Photocatalytic Activity of Ti-Based Metal–Organic Frameworks through Modulator Defect-Engineered Functionalization

dc.contributor.author	Abánades Lázaro, Isabel
dc.contributor.author	Szalad, Horatiu
dc.contributor.author	Valiente, Pablo
dc.contributor.author	Albero, Josep
dc.contributor.author	García, Hermenegildo
dc.contributor.author	Martí Gastaldo, Carlos
dc.date.accessioned	2023-06-14T07:15:34Z
dc.date.available	2023-06-15T04:45:05Z
dc.date.issued	2022	es_ES
dc.identifier.citation	Lázaro, I. A., Szalad, H., Valiente, P., Albero, J., García, H., & Martí-Gastaldo, C. (2022). Tuning the Photocatalytic Activity of Ti-Based Metal–Organic Frameworks through Modulator Defect-Engineered Functionalization. ACS Applied Materials & Interfaces, 14 (18), 21007-21017.	es_ES
dc.identifier.uri	https://hdl.handle.net/10550/87894
dc.description.abstract	Defect engineering is a valuable tool to tune the photocatalytic activity of metal–organic frameworks (MOFs). Inducing defects through the attachment of functionalized modulators can introduce cooperative units that can tune the bandgap of the material and enhance their chemical, thermal, and photostabilities among other properties. However, the majority of defect engineering studies for photocatalytic applications are limited to Zr-based MOFs, and there is still a lack of interrelation between synthetic variables, the resultant MOF properties, and their effect on their photocatalytic performance. We report a comprehensive study on the defect engineering of the titanium heterometallic MOF MUV-10 by fluoro- and hydroxy-isophthalic acid (Iso) modulators, rationalizing the effect of the materials’ properties on their photocatalytic activity for hydrogen production. The Iso-OH modified MOFs present a volcano-type profile with a 2.3-fold increase in comparison to the pristine materials, whereas the Iso-F modified samples have a gradual increase with up to a 4.2-fold enhancement. It has been demonstrated that ∼9% of Iso-OH modulator incorporation produces ∼40% defects, inducing band gap reduction and longer excited states lifetime. Similar defect percentages have been generated upon near 40% Iso-F modulator incorporation; however, negligible band gap changes and shorter excited states lifetimes were determined. The higher photocatalytic activity in Iso-F modulator derived MOF has been attributed to the effect of the divergent defect-compensation modes on the materials’ photostability and to the increase in the external surface area upon introduction of Iso-F modulator.	es_ES
dc.language.iso	en	es_ES
dc.publisher	ACS	es_ES
dc.subject	metal−organic frameworks	es_ES
dc.subject	defects	es_ES
dc.subject	porous materials	es_ES
dc.subject	functionalized materials	es_ES
dc.subject	photocatalysis	es_ES
dc.subject	photostability	es_ES
dc.title	Tuning the Photocatalytic Activity of Ti-Based Metal–Organic Frameworks through Modulator Defect-Engineered Functionalization	es_ES
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::CIENCIAS TECNOLÓGICAS	es_ES
dc.identifier.doi	10.1021/acsami.2c02668	es_ES
dc.accrualmethod	CI	es_ES
dc.embargo.terms	0 days	es_ES
dc.type.hasVersion	VoR	es_ES
dc.rights.accessRights	open access	es_ES