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中文摘要：
使用盐酸羟胺对聚丙烯腈非织造布（n PAN）进行了化学改性,并将所得改性聚丙烯腈非织造布（AO-n PAN）与Fe（Ⅲ）配位制得改性聚丙烯腈非织造布铁配合物（Fe-n PAN）,分别使用扫描电镜（SEM）、傅立叶红外光谱（FTIR）、X射线衍射（XRD）和UV-Vis吸收光谱对Fe-n PAN进行了表征,然后将其作为光催化剂应用于甲醛气体的氧化降解反应中.结果表明：提高Fe（Ⅲ）初始浓度、反应温度和AO-n PAN的增重率都能够增加Fe-n PAN的Fe（Ⅲ）配合量.Fe-n PAN中偕胺肟基团与Fe（Ⅲ）发生了配位反应,使其在可见光区有明显的吸收带.增加Fe（Ⅲ）配合量和可见光强度都能够促进甲醛的降解反应,而且与PAN纱线制备的铁配合物催化剂相比,Fe-n PAN明显具有更高的催化活性.
英文摘要：
Polyacrylonitrile nonwoven（nPAN） were chemically modified with hydroxylamine,and the obtained amidoximated polyacrylonitrile nonwoven（AO-n PAN） were coordinated with Fe（Ⅲ） to prepare modified n PAN 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-n PAN led to higher Fe（Ⅲ） content of Fe-n PAN.The amidoxime groups were coordinated with Fe（Ⅲ） in Fe-n PAN,which gave the catalyst a remarkable absorption in the visible region.Increasing both Fe（Ⅲ） content of Fe-n PAN 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.
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