A novel approach for lignin modification and degradation

被引：112

作者：

Tian, Min ^{[1
]}

Wen, Jiali ^{[1
]}

MacDonald, Duncan ^{[1
]}

Asmussen, Robert M. ^{[1
]}

Chen, Aicheng ^{[1
]}

机构：

[1] Lakehead Univ, Dept Chem, Thunder Bay, ON P7B 5E1, Canada

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Photocatalysis; Electrocatalysis; Lignin; TiO2 nanotube arrays; Oxide coating; NANOTUBE ARRAYS; TIO2; ELECTRODES; OXIDE; NANOPARTICLES;

D O I：

10.1016/j.elecom.2010.01.035

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report on a novel approach, the integration of the photochemical and electrochemical oxidation, for the modification and degradation of kraft lignin, where the Ta2O5-IrO2 thin film was used as the electrocatalyst and the TiO2 nanotube arrays were used as the photocatalyst. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to characterize the fabricated catalysts. A UV-Vis spectroscopy was used to monitor the processes of the photochemical and/or electrochemical degradation of lignin. The modified lignin was characterized using Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopy, while the intermediates produced during the photoelectrochemical process were analyzed by high-performance liquid chromatography (HPLC). Our study has demonstrated that the innovative approach described in this communication provides a promising and energy efficient, environmentally friendly method for lignin modification and degradation. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：527 / 530

页数：4

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