Highly chemical and thermally stable luminescent EuxTb1-x MOF materials for broad-range pH and temperature sensors

被引：164
作者：
Han, Yun-Hu [1 ,2 ]
Tian, Chong-Bin [1 ,2 ]
Li, Qiao-Hong [1 ]
Du, Shao-Wu [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2014年 / 2卷 / 38期
基金：
中国国家自然科学基金;
关键词：
METAL-ORGANIC FRAMEWORK; MICROPOROUS METAL; COORDINATION POLYMERS; PHOTOLUMINESCENCE; RECOGNITION; STABILITY; COMPLEXES;
D O I：
10.1039/c4tc01336k
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
New luminescent Ln-MOFs, [Ln(2)(D-cam)(Himdc)(2)(H2O)(2)] (Ln = Eu 1, Tb 2, D-H(2)cam = D-camphoric acid, H(3)imdc = 4,5-imidazole dicarboxylic acid) have been synthesized via hydro(solvo) thermal reactions. Xray single crystal structure analysis reveals that they are isomorphic and both crystallize in the orthorhombic space group Pna2(1). Compound 1 shows good chemical resistance to both acidity and alkalinity solutions with pH ranging from 2 to 13 and is highly stable in several boiling solvents, which make it potentially useful for wide-range pH sensors, especially in the physiological environment with pH = 6.8-8.0. Careful adjusting of the codoping ratio of Eu3+/Tb3+ into the same framework of 1 affords a mixed Ln-MOF, formulated as [Eu0.7Tb0.3(D-cam)(Himdc)(2)(H2O)(2)](3), which has demonstrated to be a viable probe for sensing temperature in a wide temperature range from 100 to 450 K.
引用
收藏
页码：8065 / 8070
页数：6
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