A comparison study on MIL-53 (Al) and NH2-MIL-53 (Al) MOF for optical sensing application at room temperature

被引：0
作者：
Nikhar, S. [1 ,2 ]
Sikka, R. [1 ]
Chakraborty, M. [2 ]
Kumar, P. [1 ]
机构：
[1] Cent Univ Jammu, Dept Nano Sci & Mat, Mat Applicat Res Lab, Jammu 181143, India
[2] Chandigarh Univ, Univ Inst Biotechnol, Mohali 140413, India
来源：
BULLETIN OF MATERIALS SCIENCE | 2023年 / 46卷 / 04期
关键词：
NH2-MIL-53 (Al); MIL-53 (Al); nitrobenzene; photoluminescence quenching; sensing; VOLATILE ORGANIC-COMPOUNDS; FRAMEWORKS; STABILITY; SENSOR;
D O I：
10.1007/s12034-023-03026-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two Al-MOFs, i.e., MIL-53 (Al) and (NH2)-MIL-53 (Al) have been synthesized using aluminium nitrate as metal ligands and 1,4 benzene dicarboxylic acid, amino 1,4 benzene dicarboxylic acid as organic linkers in aqueous medium at room temperature, respectively. Both Al-MOFs have been confirmed through different microscopy and spectroscopy tools. Afterwards, the optical properties of Al-MOFs have been confirmed in polar and non-polar solvents using photoluminescence spectroscopy. Finally, both Al-MOFs have been explored for optical nitrobenzene (NB) sensing. Interestingly, we have found excellent optical ability of NH2-MIL-53 (Al) over MIL-53 (Al) due to structural p-p* transitions. The photo-induced electron transfer mechanism has been found during the MOF-analyte interaction. Importantly, we confirmed that NH2-MIL-53 (Al) is an excellent sensing material for NB with a 0.28 ppb limit of detection over MIL-53 (Al).
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页数：8
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