Direct coating for layered double hydroxide/4,4′-diaminostilbene-2, 2′-disulfonic acid nanocomposite with silica by seeded polymerization technique

Ahmed Mohamed El-Toni, Shu Yin, Tsugio Sato

研究成果: Article査読

9 被引用数 (Scopus)

抄録

Organic ultraviolet (UV) ray absorbents have been used as sunscreen materials, but may pose a safety problem when used at high concentration. In order to prevent direct contact of organic UV rays absorbent by the human skin, an organic UV absorbent such as 4,4′-diaminostilbene-2,2′-disulfonic acid (DASDSA) was intercalated into Zn2Al-layered double hydroxide (Zn2Al-LDHs) by coprecipiation reaction. The problem of deintercalation of organic molecules from LDHs by the anion exchange reaction with carbonate ion could be greatly depressed by forming a protection film of silica on the surface. Zn2Al-LDH/DASDSA was directly coated with silica by means of a polymerization technique based on the Stöber method. The deintercalation behavior as well as UV-shielding properties were investigated for coated particles.

本文言語English
ページ(範囲)3197-3201
ページ数5
ジャーナルJournal of Solid State Chemistry
177
9
DOI
出版ステータスPublished - 2004 9 1

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

フィンガープリント 「Direct coating for layered double hydroxide/4,4′-diaminostilbene-2, 2′-disulfonic acid nanocomposite with silica by seeded polymerization technique」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル