Cu2+对Fe（bpy）32+负载改性PAN纤维光催化的影响

摘要

制备了Fe（bpy）32+负载偕胺肟改性聚丙烯腈（PAN）纤维非均相Fenton催化剂，并通过配位作用将Cu2+引入该催化剂，制备了双金属负载改性PAN纤维催化剂（CuFeB－PAN）。并对该催化剂进行FTIR光谱、UV－Vis DRS谱图、光催化活性分析，探讨并分析了不同因素对光催化活性的影响。结果表明，Cu2+的引入拓宽了催化剂的可见光吸收范围；Cu2+的引入明显提高了催化剂的光催化活性，而且拓宽了pH适用范围；Cu2+的引入提高了催化剂对可见光的利用效率。%Heterogeneous Fenton catalyst was obtained by loading Fe(bpy)32+ on polyacrylonitrile(PAN) fiber mod-ified by amidoxime, and then Cu2+ was introduced into the catalyst through coordination effect, and the bimetallic loading modified PAN fiber catalyst (CuFeB-PAN) was prepared. The catalyst was analyzed by FTIR spectra, UV-Vis DRS spectrogram and photocatalytic activity. The effects of different factors on photocatalytic activity were dis-cussed and analyzed. The results show that the introduction of Cu2+ broadens visible absorption region of catalyst, greatly improves photocatalytic activity of catalyst, extends pH application scope, and increases the utilization effi-ciency of catalyst on visible light.