HA/Ag纳米复合材料的制备与性能

Preparation and Properties of HA/Ag Nanocomposites

采用一锅热熔胶法制备出多孔花状羟基磷灰石/银(HA/Ag)纳米复合材料。通过检测罗丹明B揭示了HA/Ag作为SERS活性底物的独特拉曼增强效应,其检测极限为10^(-8) mol·L^(-1)。在检测中,改变拉曼激光强度,取点位置等手段能有效提高检测的灵敏度。此外,所制备的多孔纳米复合材料HA/Ag作为对硝基苯酚(4-NP)还原为对氨基苯酚(4-AP)反应的催化剂,可以大大缩短反应时间40 min。

A porous flower-like hydroxyapatite/silver(HA/Ag)nanocomposite was prepared via one-pot solthernal method.The unique Raman-enhancing effect of the HA/Ag nanocomposite as the surface-enhanced Raman scattering(SERS)active substrate was revealed by rhodamine B detection at the concentration as low as10-8 mol·L-1.In the detection,changing the intensity of the Raman laser and the position of the taking points can effectively improve the sensitivity of the detection.In addition,the prepared porous nanocomposite HA/Ag acts as a catalyst for the reduction of p-nitrophenol(4-NP)to p-aminophenol(4-AP),which can greatly shorten the reaction time by 40 min.