用PEG作为添加剂,用溶胶-凝胶法制备了多孔二氧化钛薄膜,通过改变热处理温度和PEG的添加量获取不同微观结构的二氧化钛薄膜,进而研究制备条件对染料吸附的影响.样品的X射线衍射、折射率、扫描电镜(SEM)和吸收光谱的测试结果表明,PEG加入越多,气孔率越大,染料的吸附量越多.另外,热处理温度为500℃时染料的吸附量最好.
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