Ultrastable MAPbBr(3)@ZIF-8Co(5%) as a novel fluorescence probe for highly selectively sensing Fe3+ in water
Ultrastable MAPbBr(3)@ZIF-8Co(5%) as a novel fluorescence probe for highly selectively sensing Fe3+ in water
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超稳定%20MAPbBr(3)@ZIF-8Co(5%)%20as%20a%20novel%20荧光%20probe%20for%20highly%20selectively%20sensing%20Fe3+%20in%20water
DOI：
10.1016/j.jlumin.2021.118056
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发表时间：
2021
影响因子：
3.6
通讯作者：
Chen Yunlin
中科院分区：
文献类型：
--
作者：
Chen Rongzhi;Zhan Kuo;Xing Yizhou;Wang Zhaolong;Zhu Yabin;Yan Jun;Liu Bin;Chen Yunlin
MAPbBr 3具有优异的荧光量子效率、带隙可调、荧光寿命短等优点，在各个领域具有广阔的前景。然而，MAPbBr 3的不稳定性严重阻碍了其应用。本文中，开发了嵌入锌-钴二元沸石咪唑酯骨架（ZIF-8 Cox %，x = 0-20）中的MAPbBr 3以制备MAPbBr 3@ZIF-8 Cox %，用于检测混合的各种金属离子水中的Fe 3+。研究了Co2+掺杂浓度对MAPbBr3@ZIF-8 Cox %复合材料发光强度的影响，结果表明，当Co2+掺杂浓度为5%时，样品在水中放置30天后显示出较好的上级荧光强度。荧光传感研究表明，MAPbBr3@ZIF-8Cox%能够以高灵敏度和选择性检测水中的Fe 3+离子，即使在包括Fe 2+离子在内的其他干扰金属离子的存在下也是如此。此外，还探讨了MAPbBr3@ZIF-8Cox%对水溶液中Fe ~（3+）离子的潜在荧光传感机理。
MAPbBr3 has a great prospect in various fields, due to excellent fluorescence quantum efficiency, band gap tunable and short of fluorescence lifetime. However, the instability of MAPbBr3 seriously impedes its application. Herein, the MAPbBr3 embedded in Zinc-Cobalt binary zeolitic imidazolate framework (ZIF-8Cox%, x = 0–20) has been developed to fabricate MAPbBr3@ZIF-8Cox% for detecting Fe3+ in mixing various metal ions water. The investigation of concentration of doping Co2+ on the emission intensities of MAPbBr3@ZIF-8Cox% composite demonstrated that the concentration of 5% with Co2+ showed superior fluorescence intensity after 30 days in the water. The fluorescent sensing studies indicated that MAPbBr3@ZIF-8Cox% can detect Fe3+ ion in water with high sensitivity and selectivity even in the presence of other interfering metal ions including Fe2+ ion. Moreover, the potential fluorescence sensing mechanism of MAPbBr3@ZIF-8Cox% for Fe3+ ion in aqueous solution was also discussed.