Modified wool-iron biopolymer-based complex as an active heterogeneous decontamination photocatalyst

A series of biopolymer based complex were manufactured by coordinating iron ions to the abundant amino- and sulfur-containing groups in the modified wool and used as heterogeneous Fenton-like photocatalyst for 4-chlorophenol（4-CP） degradation in the presence of H2O2.Hydroxylamine hydrochloride（NH2OH...

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Bibliographic Details
Published in:Journal of energy chemistry 2016-11, Vol.25 (6), p.1064-1069
Main Authors: Zhang, Lizhong, Zhai, Qian, Zhao, Xiufeng, Min, Xuemei, Zhu, Qiuhui, Li, Jianhui
Format: Article
Language:English
Subjects:
Biopolymer
Decontamination
Heterogeneous catalysis
Photo-Fenton catalysis
Wool-iron complex
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Summary:A series of biopolymer based complex were manufactured by coordinating iron ions to the abundant amino- and sulfur-containing groups in the modified wool and used as heterogeneous Fenton-like photocatalyst for 4-chlorophenol（4-CP） degradation in the presence of H2O2.Hydroxylamine hydrochloride（NH2OH·HC1） or acrylic acid was employed to modify the natural wool to strengthen the interaction with iron and to reinforce the structural stability.The NH2OH·HC1 modified wool based complex showed the best catalytic performance for 4-CP degradation.The strong coordination between iron and great number of hydroxamic acid in this modified complex leads to the least iron leaching during the tests.HO· species was confirmed to be the dominant reactive oxidant in the decontamination process.The approach presented in this study can provide a new approach for developing novel bioployermer-based photocatalysts for efficient degradation of toxic organic pollutants such as 4-CP.
ISSN:2095-4956
DOI:10.1016/j.jechem.2016.10.010