A luminescent coordination polymer for selective, sensitive, and recyclable sensing of nitrobenzene in aqueous solution

作者：Zhang, Shu-Ran; Wang, Wei; Xu, Guang-Juan; Yao, Chan; Xu, Yan-Hong^*; Su, Zhong-Min^*

来源：Inorganic Chemistry Communications, 2017, 84: 36-39.

DOI：10.1016/j.inoche.2017.07.008

• Coordination polymer
• Photoluminescence
• Fluorescence quenching
• Nitrobenzene
• Sensor

A luminescent coordination polymer, [Cd(H(2)biim)(2)SO4]center dot 3H(2)O (JLNU-1, JLNU = Jilin Normal University); H(2)Biim = 2,2'-biimidazole, has been prepared by hydrothermal method and characterized by corresponding analytical tools. JLNU-1 exhibits outstanding chemical stability in aqueous solution and solvent-dependent luminescent behaviour. In particular, stable suspension of JLNU-1 in nitrobenzene showed highest quenching. The emission spectra were nearly completely quenched at a concentration of 100 ppm nitrobenzene in aqueous solution. JLNU-1 can be regenerative for 6 cycles by centrifugation of the solution after use and washing several times with H2O. Therefore, JLNU-1 can be used as a fluorescent probe for sensitive and recyclable sensing of small-molecule pollutant nitrobenzene in aqueous solution.

• 出版日期2017-10
• 单位吉林师范大学; 东北师范大学