Band Gap Modulation Enabled by TCNQ Loading in a Ru-Based Metal–Organic Framework for Enhanced Near-Infrared Absorption and Photothermal Conversion

A simple defect engineering approach to systematically tune the band gap of the prototypical zirconium-based metal–organic framework UiO-66 is reported. Defect engineered materials display enhanced photocatalytic activity.

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Plasmonics-enhanced metal–organic framework nanoporous films for highly sensitive near-infrared absorption

Journal of Materials Chemistry C ◽

10.1039/c4tc02846e ◽

2015 ◽

Vol 3 (12) ◽

pp. 2763-2767 ◽

Cited By ~ 27

Author(s):

Ki-Joong Kim ◽

Xinyuan Chong ◽

Peter B. Kreider ◽

Guoheng Ma ◽

Paul R. Ohodnicki ◽

...

Keyword(s):

Thin Films ◽

Infrared Absorption ◽

Near Infrared ◽

Metal Organic Framework ◽

Infrared Range ◽

Nanoporous Films ◽

Highly Sensitive ◽

Metal Organic ◽

Near Infrared Range ◽

Organic Framework

Combined plasmonic nanocrystals and metal–organic framework thin-films are fabricated for sensing gases in the near-infrared range.

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Near-infrared absorption gas sensing with metal-organic framework on optical fibers

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2016.03.135 ◽

2016 ◽

Vol 232 ◽

pp. 43-51 ◽

Cited By ~ 35

Author(s):

Xinyuan Chong ◽

Ki-Joong Kim ◽

Erwen Li ◽

Yujing Zhang ◽

Paul R. Ohodnicki ◽

...

Keyword(s):

Optical Fibers ◽

Infrared Absorption ◽

Near Infrared ◽

Gas Sensing ◽

Metal Organic Framework ◽

Metal Organic ◽

Organic Framework

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Near-Infrared Absorption Gas Sensors using Metal-Organic Framework-Coated Optical Fibers

CLEO: 2015 ◽

10.1364/cleo_si.2015.sm2o.4 ◽

2015 ◽

Author(s):

Xinyuan Chong ◽

Ki-Joong Kim ◽

Paul R. Ohodnicki ◽

Erwen Li ◽

Chih-Hung Chang ◽

...

Keyword(s):

Optical Fibers ◽

Infrared Absorption ◽

Gas Sensors ◽

Near Infrared ◽

Metal Organic Framework ◽

Metal Organic ◽

Organic Framework

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Stable radical anions generated from a porous perylenediimide metal-organic framework for boosting near-infrared photothermal conversion

Nature Communications ◽

10.1038/s41467-019-08434-4 ◽

2019 ◽

Vol 10 (1) ◽

Cited By ~ 60

Author(s):

Baozhong Lü ◽

Yifa Chen ◽

Pengyu Li ◽

Bo Wang ◽

Klaus Müllen ◽

...

Keyword(s):

Near Infrared ◽

Metal Organic Framework ◽

Stable Radical ◽

Radical Anions ◽

Photothermal Conversion ◽

Metal Organic ◽

Organic Framework

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Band Gap Modulation in Zirconium-Based Metal-Organic Frameworks by Defect Engineering

10.26434/chemrxiv.8143319 ◽

2019 ◽

Author(s):

Marco Taddei ◽

Giulia M. Schukraft ◽

Michael E. A. Warwick ◽

Davide Tiana ◽

Matthew McPherson ◽

...

Keyword(s):

Band Gap ◽

Gas Phase ◽

Metal Organic Framework ◽

Metal Organic Frameworks ◽

Benzoic Acids ◽

Defect Engineering ◽

Metal Organic ◽

Band Gap Modulation ◽

Valence Band Energy ◽

Defective Sites

We report a defect-engineering approach to modulate the band gap of zirconium-based metal-organic framework UiO-66, enabled by grafting of a range of amino-functionalised benzoic acids at defective sites. Defect engineered MOFs were obtained by both post-synthetic exchange and modulated synthesis, featuring band gap in the 4.1-3.3 eV range. Ab-initio calculations suggest that shrinking of the band gap is mainly due to an upward shift of the valence band energy, as a result of the presence of light-absorbing monocarboxylates. The photocatalytic properties of defect-engineered MOFs towards CO<sub>2</sub> reduction to CO in the gas phase and degradation of Rhodamine B in water were tested, observing improved activity in both cases, in comparison to a defective UiO-66 bearing formic acid as the defect-compensating species.

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