摘要
分别用UV/VIS、IR光谱、TEM和电导、电泳等方法研究了明胶蛋白同银离子间的相互作用。研究了介质的pH、温度等条件对明胶同银 (I)离子作用的影响 ;明胶 -银凝胶体系在 2 33和 4 2 2nm有最大吸收 ;银氨配离子在碱性条件下还原为银粒而被明胶吸附形成超细银凝胶。胶团本身带正电荷 ,胶粒粒径在 30nm左右 ,双电层的电动电位为 0 .0 14～ 0 .0 16V。
The interaction for Gelatin with Silver(I) ion have been developmented by UV/Vis, IR spectra, TEM and conductance.electropheresis methods respectively. Where were also investigated that the effect of pH medium, temperature and multicomponent concentration on interaction gelatin-silver. It is an autocatalysis reduction process that reaction of gelatin-silver, and a colloid system on any condition. It has maximum absorbance at 233 and 422nm. It is formed a multinucleate complex under suitable condition first, then reduced to metalic Ag particle and collectived to superfine colloidal gel, which is carried on positive charge, diameter of colloid particle about is 30nm and electrokinetic potential of double electrode layer is 0.014~0.016V.
基金
贵州省科学基金! [98( 30 78) ]资助课题&&
