摘要
在甲苯存在下的反相微乳液体系中,将γ-缩水甘油醚氧丙基三甲氧基硅烷(KH560)与罗丹明B进行预反应;再与正硅酸乙酯(TEOS)经原位溶胶-凝胶反应,制备SiO2/罗丹明B荧光杂化纳米微球。通过FTIR、UV-Vis、TEM、TG和光致发光谱对杂化纳米微球进行了表征。结果表明:罗丹明B与KH560间通过酯基形成化学键合,杂化纳米微球的直径约为200 nm,其耐热稳定性和耐紫外光稳定性优于罗丹明B,荧光强度约为罗丹明B的4倍。
Fluorescent hybrid nanospheres of SiO2/Rhodamine B were prepared.Firstly,3-glycidyloxypropyl trimethoxysilane（KH560） reacted with Rhodamine B in water-in-oil microemulsion,and then they reacted with TEOS in the microemulsion by sol-gel in-situ.The hybrid nanospheres were characterized by FTIR,UV-Vis,TG,PL and TEM.The results showed that Rhodamine B was linked to SiO2 via chemical bond,the diameter of hybrid nanospheres was about 200 nm.The nanospheres showed better heat resistance and UV light resistance than Rhodamine B.The PL intensity of the hybrid nanospheres was about 4 times of Rhodamine B.
出处
《发光学报》
EI
CAS
CSCD
北大核心
2011年第8期798-802,共5页
Chinese Journal of Luminescence
基金
安徽省教育厅自然科学研究项目(2009AJZR0137)
合肥工业大学创新基金(cxsy2010071)资助项目
