在有机改性凝胶中共掺对羟基苯甲酸和TbCl3制备了对羟基苯甲酸:Tb3+配合物掺杂的有机改性凝胶,研究了pH值对有机改性凝胶中对羟基苯甲酸:Tb3+配合物的形成及其发光性质,结果表明:在不同的凝胶中,pH值对发光性质的影响差异较大,在由TEOS水解缩聚形成的SiO2凝胶中,随pH值增加,对羟基苯甲酸和TbCl3样品的发光强度逐渐增强,表明凝胶中对羟基苯甲酸:Tb3+配合物的逐渐形成.但在50%TEOS和50%GPTMS水解缩聚形成的有机改性凝胶中,样品的发光强度随pH值的升高逐渐下降.
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