Open AccessAdsorption of a Spiropyran on a Layered Clay Mineral
Author(s) -
Nattapat Nut Leelaphattharaphan,
Siwada Deepracha,
T. Yamaguchi,
Makoto Ogawa
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/950/1/012041
Subject(s) - spiropyran , photochromism , merocyanine , hectorite , photoisomerization , photochemistry , adsorption , chemistry , clay minerals , molecule , materials science , organic chemistry , isomerization , catalysis , mineralogy
Adsorption of a photochromic dye, spiropyran, on a layered clay mineral, a synthetic hectorite, was investigated. Spiropyrans are well-known photochromic molecules due to its fast and reproducible color change resulting from the photoisomerization between hydrophobic closed-ring spiropyran and hydrophilic open-ring merocyanine. The photochemical reaction of the adsorbed spiropyran in the modified hectorite was also examined.