Semiconductor Behavior of a Metal‐Organic Framework (MOF)

Chemistry - A European Journal - Tập 13 Số 18 - Trang 5106-5112 - 2007
Mercedes Álvaro1, Esther Carbonell1, Belén Ferrer1, Francesc X. Llabrés i Xamena1, Hermenegildo Garcı́a1
1Instituto de Tecnología Química, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain, Fax: (+34) 963‐879‐349

Tóm tắt

Abstract

Upon light excitation MOF‐5 behaves as a semiconductor and undergoes charge separation (electrons and holes) decaying in the microsecond time scale. The actual conduction band energy value was estimated to be 0.2 V versus NHE with a band gap of 3.4 eV. Photoinduced electron transfer processes to viologen generates the corresponding viologen radical cation, while holes of MOF‐5 oxidizes N,N,N′,N′‐tetramethyl‐p‐phenylenediamine. One application investigated for MOF‐5 as a semiconductor has been the shape‐selective photocatalyzed degradation of phenol in aqueous solutions.

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Chemistry - A European Journal

Tập 13 Số 18

5106-5112

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