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Stable UV absorption material synthesized by intercalation of squaric acid anion into layered double hydroxides

Authors
  • Li, Shi-Feng
  • Shen, Yan-Ming
  • Xiao, Min
  • Zhang, Zhi-Gang
  • Li, Wen-Xiu
Type
Published Article
Journal
Chemical Papers
Publisher
De Gruyter Open
Publication Date
Dec 30, 2014
Volume
69
Issue
3
Pages
456–461
Identifiers
DOI: 10.1515/chempap-2015-0039
Source
De Gruyter
Keywords
License
Yellow

Abstract

A novel UV absorption material of squaric acid (SA) anion (C4O42- ) intercalated layered double hydroxides (LDHs) was successfully synthesized by the co-precipitation method. After intercalation, the interlayer distance of MgAl-SA-LDHs increased to 1.04 nm compared to those of MgAl-CO3- LDHs and SA anions present in form of a monolayer in the interlayer of LDHs. Thermal stability of SA clearly enhanced by the intercalation and the suppression of the deintercalation ability of MgAl-SA-LDHs was superior to that of 4-hydroxy-3-methoxybenzoic acid intercalated LDHs. The results of UV-DRS indicate the potential application of MgAl-SA-LDHs as UV absorbers.

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