Brine available two-dimensional nano-architectonics of fluorescent probe based on phosphate doped ZIF-L for detection of Fe3

Xiaoyun Liu; Xiaoze Wang; Chunyan Sun; Xiaofeng Hu; Weijun Song

doi:10.1016/j.heliyon.2023.e17884

Brine available two-dimensional nano-architectonics of fluorescent probe based on phosphate doped ZIF-L for detection of Fe³

Heliyon. 2023 Jul 4;9(7):e17884. doi: 10.1016/j.heliyon.2023.e17884. eCollection 2023 Jul.

Authors

Xiaoyun Liu¹, Xiaoze Wang¹, Chunyan Sun¹, Xiaofeng Hu¹, Weijun Song¹

Affiliation

¹ School of Chemical Engineering, Qinghai University, Xining, 810016, PR China.

Abstract

Herein, we propose a simple and effective strategy for designing a zeolitic imidazolate frameworks (ZIFs) fluorescent probe with a two-dimensional leaf-like structure. By doping ZIF-L with phosphate, we developed a fluorescent probe for iron (Fe³⁺) in systems with high salinity. The fluorescence of P-ZIF-L was quenched effectively with the presence of Fe³⁺. The physicochemical structure, surface morphology, selectivity, stability and composition of the probe were investigated. Under optimized conditions, the fluorescent probe had a detection limit of 0.5 μM. Furthermore, the results that the probe exhibited desirable salt-tolerance and was suitable for determination of Fe³⁺ in brine water samples with satisfactory results.

Keywords: Fluorescence probe; Iron ion; Zeolitic imidazolate framework.