Struct Bond (2020) 183: 251–320
https://doi.org/10.1007/430_2020_53
# Springer Nature Switzerland AG 2020
Published online: 2 August 2020
Photofunctions of Dye-Clay Hybrids:
Recent Developments
Tetsuo Yamaguchi, Jae-Min Oh, and Makoto Ogawa
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
2 Characteristics of Dye-Clay Hybrids for Photochemical Studies and Photofunctional
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
3 Surface Modification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
4 Photophysics of Dye-Clay Hybrid Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
4.1 Changes in the Absorption Properties, Color Change, and Stability . . . . . . . . . . . . . . . . 257
4.2 Changes in the Photoluminescence Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
4.3 Alignment of Dyes by Host-Guest Interactions: Study by Linear Polarized Light . 272
5 Photochemical Reactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
5.1 Intramolecular Reactions Affected by Host-Guest Interactions . . . . . . . . . . . . . . . . . . . . . . 275
5.2 Intermolecular Reactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
5.3 Uses of Photochemical Reactions as Trigger for Photoinduced Phenomena . . . . . . . . 287
6 Conclusions and Future Perspectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Abstract Precise design of hybrid nanostructures based on dyes in hybrid materials
toward controlled photochemical reactions and novel photoinduced phenomena is
overviewed with the emphasis on the recent developments. Various clays and clay
minerals with different origins and characteristics have been used as hosts to control
the location, orientation, and aggregation as well as the dynamic states (rotation and
diffusion) of the dyes. The designed nanostructures affect photochemical properties
such as efficiency, selectivity, and the rate of some photochemical reactions. Using
the photochemical reactions in nanospaces, unique photoinduced phenomena such
T. Yamaguchi and M. Ogawa (*)
School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and
Technology, Rayong, Thailand
e-mail: makoto.ogawa@vistec.ac.th
J.-M. Oh
Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, South
Korea
e-mail: jaemin.oh@dongguk.edu
https://doi.org/10.1007/430_2020_53
# Springer Nature Switzerland AG 2020
Published online: 2 August 2020
Photofunctions of Dye-Clay Hybrids:
Recent Developments
Tetsuo Yamaguchi, Jae-Min Oh, and Makoto Ogawa
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
2 Characteristics of Dye-Clay Hybrids for Photochemical Studies and Photofunctional
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
3 Surface Modification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
4 Photophysics of Dye-Clay Hybrid Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
4.1 Changes in the Absorption Properties, Color Change, and Stability . . . . . . . . . . . . . . . . 257
4.2 Changes in the Photoluminescence Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
4.3 Alignment of Dyes by Host-Guest Interactions: Study by Linear Polarized Light . 272
5 Photochemical Reactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
5.1 Intramolecular Reactions Affected by Host-Guest Interactions . . . . . . . . . . . . . . . . . . . . . . 275
5.2 Intermolecular Reactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
5.3 Uses of Photochemical Reactions as Trigger for Photoinduced Phenomena . . . . . . . . 287
6 Conclusions and Future Perspectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Abstract Precise design of hybrid nanostructures based on dyes in hybrid materials
toward controlled photochemical reactions and novel photoinduced phenomena is
overviewed with the emphasis on the recent developments. Various clays and clay
minerals with different origins and characteristics have been used as hosts to control
the location, orientation, and aggregation as well as the dynamic states (rotation and
diffusion) of the dyes. The designed nanostructures affect photochemical properties
such as efficiency, selectivity, and the rate of some photochemical reactions. Using
the photochemical reactions in nanospaces, unique photoinduced phenomena such
T. Yamaguchi and M. Ogawa (*)
School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and
Technology, Rayong, Thailand
e-mail: makoto.ogawa@vistec.ac.th
J.-M. Oh
Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, South
Korea
e-mail: jaemin.oh@dongguk.edu