Accelerated Photo-Induced Degradation of Benzidine-p-Aminothiophenolate Immobilized at Light-Enhancing TiO2 Nanotube Electrodes

Querebillo CJ, Oener IH, Hildebrandt P, Ly KH, Weidinger IM (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Chemistry - A European Journal Wiley

Book Volume: 25

Pages Range: 16048-16053

Journal Issue: 70

DOI: 10.1002/chem.201902963

Abstract

Herein, the enhanced visible-light-induced degradation of the azo-dye benzidine-p-aminothiophenolate immobilized on TiO2 nanotube electrodes is reported. Exploiting the reported photonic properties of the TiO2 support and the strong electronic absorption of the dye allowed for employing surface-enhanced resonance Raman spectroscopy at 413 nm to simultaneously trigger the photoreaction and follow the time-dependent decay process. Degradation rate constants of up to 25 s−1 were observed, which stand among the highest reported values for laser-induced degradation of immobilized dyes on photonically active supports. Contrast experiments with two differently light-enhancing TiO2 nanotube electrodes establish the direct correlation of the material's optical response, that is, electromagnetic field enhancement, on the interfacial photocatalytic reaction.

Authors with CRIS profile

Inez M. Weidinger

Involved external institutions

Technische Universität Dresden DE Germany (DE) Technische Universität Berlin DE Germany (DE)

How to cite

APA:

Querebillo, C.J., Oener, I.H., Hildebrandt, P., Ly, K.H., & Weidinger, I.M. (2019). Accelerated Photo-Induced Degradation of Benzidine-p-Aminothiophenolate Immobilized at Light-Enhancing TiO2 Nanotube Electrodes. Chemistry - A European Journal, 25(70), 16048-16053. https://doi.org/10.1002/chem.201902963

MLA:

Querebillo, Christine Joy, et al. "Accelerated Photo-Induced Degradation of Benzidine-p-Aminothiophenolate Immobilized at Light-Enhancing TiO2 Nanotube Electrodes." Chemistry - A European Journal 25.70 (2019): 16048-16053.

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