Polyacrylonitrile nonwoven (nPAN) were chemically modified with hydroxylamine, and the obtained amidoximated polyacrylonitrile nonwoven (AO-nPAN) were coordinated with Fe (III) to prepare modified nPAN supported Fe complexes (Fe-nPAN). The complexes were characterized using Scanning electron microscope (SEM), Fourier Transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and UV-vis absorption spectra, and then employed as photocatalysts in the oxidative degradation of formaldehyde. The results indicated that increasing Fe (III) concentration, reaction temperature and weight gain rate of AO-nPAN led to higher Fe (III) content of Fe-nPAN. The amidoxime groups were coordinated with Fe (III) in Fe-nPAN, which gave the catalyst a remarkable absorption in the visible region. Increasing both Fe (III) content of Fe-nPAN and visible irradiation could significantly accelerate the formaldehyde degradation, and the catalyst exhibited much higher photocatalytic activity than the PAN yarn Fe complex under similar conditions.
韩旭, 韩振邦, 赵晓明. 改性PAN非织造布铁配合物可见光降解甲醛气体[J]. 中国环境科学, 2016, 36(5): 1353-1359.
HAN Xu, HAN Zhen-bang, ZHAO Xiao-ming. Preparation of modified PAN nonwoven Fe complex and its photocatalytic performance on formaldehyde degradation. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(5): 1353-1359.
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