Novel synthesis of layered double hydroxides (LDHs) from zinc hydroxide

Zilin Meng, Yihe Zhang, Qian Zhang, Xue Chen, Leipeng Liu, Sridhar Komarneni, Fengzhu Lv

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The most common synthesis methods for layered double hydroxides (LDHs) are co-precipitation and reconstruction, which can have some limitations for application. Here, we report a novel synthesis method for LDHs. We use zinc hydroxide as the precursor to synthesize LDHs phase through a simple transformation process of zinc hydroxide phase. For this transformation process, aluminum can enter into zinc hydroxide and replace zinc quickly to transform it into LDH by creating positive charges in the zinc hydroxide solid phase. The mechanism of LDH formation was through Al 3+ reaction first with zinc hydroxide followed by recrystallization of the original structure of zinc hydroxide. Thus, the new process of LDH formation involves a reaction of Al to substitute for Zn and recrystallization leading to LDH and the final pH influences the crystallization of LDHs by this process. In addition, Cr 3+ was employed as a trivalent cation for LDH formation to react with zinc hydroxide, which also led to LDH structure.

Original languageEnglish (US)
Pages (from-to)799-803
Number of pages5
JournalApplied Surface Science
Volume396
DOIs
StatePublished - Feb 28 2017

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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