改性SiO2载体对邻菲咯啉钌荧光特性及氧敏感荧光膜性能的影响

doi:10.7517/j.issn.1674-0475.2015.03.211

影像科学与光化学 ›› 2015, Vol. 33 ›› Issue (3): 211-217.DOI: 10.7517/j.issn.1674-0475.2015.03.211

改性SiO₂载体对邻菲咯啉钌荧光特性及氧敏感荧光膜性能的影响

李建雄¹, 左陈², 陈建明³, 李炳蔚³

1. 华南理工大学材料科学与工程学院, 广州 510640;
2. 广东生益科技股份有限公司, 广东东莞 523039;
3. 新会康宇测控仪器仪表工程有限公司, 广东江门 529100

收稿日期:2014-09-06 修回日期:2014-12-26 出版日期:2015-05-15 发布日期:2015-05-15
通讯作者: 李建雄

Effect of Phosphor Carriers on Fluorescence of Ruthenium Phenanthroline and Performance of Oxygen-sensitive Fluorescent Membranes

LI Jianxiong¹, ZUO Chen², CHEN Jianming³, LI Bingwei³

1. School of Material Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China;
2. Guangdong Shengyi Technology Co., LTD, Dongguan 523039, Guangdong, P. R. China;
3. Xinhui Kangyu Control Systems Engineering Inc, Jiangmen 529100, Guangdong, P. R. China

Received:2014-09-06 Revised:2014-12-26 Online:2015-05-15 Published:2015-05-15

摘要/Abstract

摘要：

为提高极性荧光指示剂Ru(dpp)₃Cl₂在非极性硅橡胶中的分散性,以沉淀白炭黑、气相白炭黑和甲基MQ树脂,载负荧光指示剂Ru(dpp)₃Cl₂,再填充到二甲基硅橡胶(PDMS)中,制备氧敏感荧光膜.以分光光度计和荧光光谱仪,研究载体种类对Ru(dpp)₃Cl₂的吸附性、荧光特性及氧敏感荧光膜性能的影响.白炭黑载负Ru(dpp)₃Cl₂的荧光发射光谱相对其稀溶液约红移20 nm.载体表面的甲基可减弱SiO₂载体对Ru(dpp)₃Cl₂分子的吸附性和相互作用,减少荧光发射光谱的红移12 nm,提高荧光强度近10倍.白炭黑有助改善Ru(dpp)₃Cl₂在PDMS中的分散性和氧敏感荧光膜的荧光输出和猝灭比,尤以MQ树脂的效果最为显著.

关键词: 邻菲咯啉钌, 发射光谱, MQ树脂, 聚二甲基硅氧烷, 溶氧传感器

Abstract:

To increase the dispersion of polar phosphor Ru(dpp)₃Cl₂ in apolar silicone rubber and produce oxygen-sensitive fluorescent membranes with high performance, fumed silica, precipitated silica and MQ resin were adopted as phosphor carriers to adsorb Ru(dpp)₃Cl₂ from solution, then added to polydimethylsiloxane and cast into fluorescent membranes. The adsorbing ability of the carrier to Ru(dpp)₃Cl₂ was evaluated with spectrophotometer and the effect of the carrier on the fluorescent characteristics of Ru(dpp)₃Cl₂ was analyzed with spectroscope. The effect of the carrier on the performance of the oxygen-sensitive fluorescent membranes was studied. Compared to the fluorescent spectrum of Ru(dpp)₃Cl₂ in ethanol solution, the fluorescent emission spectra of Ru(dpp)₃Cl₂ red shifted 20 nm after adsorbed on silica. Methyl group onto silica depressed the interaction of silica with Ru(dpp)₃Cl₂ and the amount of adsorbed Ru(dpp)₃Cl₂. MQ resin could reduce the red-shift of fluorescent emission spectrum more than 10 nm and increase the fluorescence intensity by 10 times. In oxygen-sensitive fluorescent membranes, MQ resin could increase the dispersion of Ru(dpp)₃Cl₂ in PDMS and improve the fluorescent output of the membranes.

Key words: Ruthenium phenanthroline, fluorescence, MQ resin, PDMS, dissolved oxygen sensor

李建雄, 左陈, 陈建明, 李炳蔚. 改性SiO₂载体对邻菲咯啉钌荧光特性及氧敏感荧光膜性能的影响[J]. 影像科学与光化学, 2015, 33(3): 211-217.

LI Jianxiong, ZUO Chen, CHEN Jianming, LI Bingwei. Effect of Phosphor Carriers on Fluorescence of Ruthenium Phenanthroline and Performance of Oxygen-sensitive Fluorescent Membranes[J]. Imaging Science and Photochemistry, 2015, 33(3): 211-217.

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改性SiO₂载体对邻菲咯啉钌荧光特性及氧敏感荧光膜性能的影响

Effect of Phosphor Carriers on Fluorescence of Ruthenium Phenanthroline and Performance of Oxygen-sensitive Fluorescent Membranes

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