Recent progress on lanthanide complexes/clay minerals hybrid luminescent materials

The unique luminescent performance of lanthanide complexes/clay minerals hybrid materials has been fascinating many researchers for recent decades. It not only retains the excellent luminescent charac-teristics of lanthanide complexes but also improves the poor stability of the complexes. In this article, we introduce the luminescence mechanism of lanthanide complexes and point out the necessity of their combination with clay minerals. After the analysis of the structure and interlayer environment differ-ences of 1:1-type and 2:1-type clay minerals, the intercalation methods (covalent grafting and ion ex-change) appropriate for different clay minerals are summarized with examples. Based on the luminescence characteristics of the hybrid materials, the applications of these materials as luminescent probes in recognition of specific metal cations and molecules, detection of pH value, and temperature are reviewed. Finally, the current problems in the preparation of lanthanide complexes/clay minerals hybrid luminescent materials and shortcomings that need improvement in their performance are analyzed, and the application prospect is forecast.(c) 2022 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.

Automated summary

The luminescent performance of lanthanide complexes/clay minerals hybrid materials has attracted researchers' attention. This article introduces the luminescence mechanism of lanthanide complexes and the necessity of combining them with clay minerals. The appropriate intercalation methods for different clay minerals are summarized, and the applications of these materials as luminescent probes are reviewed.