NDLI: Facile fabrication of two-dimensional inorganic nanostructures and their conjugation to nanocrystals

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Journal of Materials Chemistry C Vol - 1 Issue - 19

Journal of Materials Chemistry C Vol - 1 Issue - 9

Journal of Materials Chemistry C Vol - 1 Issue - 8

Journal of Materials Chemistry C Vol - 1 Issue - 7

Journal of Materials Chemistry C Vol - 1 Issue - 6

Journal of Materials Chemistry C Vol - 1 Issue - 5

Facile fabrication of two-dimensional inorganic nanostructures and their conjugation to nanocrystals

Content Provider	Royal Society of Chemistry (RSC)
Author	Jung, Sungwook Jeong, Sanghwa Kwag, Jungheon Park, Juwon Lee, Jae Sung Jang, Ji-Wook Kim, Sungjee Cho, Seungho
Copyright Year	2013
Abstract	Nanocomposites of two-dimensional (2D) inorganic nanosheets and inorganic nanocrystals are fabricated. Freestanding atomically flat γ-AlOOH nanosheets (thickness <1 nm) are synthesized from a one-pot hydrothermal reaction. The freestanding and binder-free film composed of the γ-AlOOH nanosheets is fabricated by sedimentation. Because they have positive zeta potentials in the pH range below ca. 9.3, the γ-AlOOH nanosheets can function as positively charged 2D inorganic matrices in a broad pH range. By solution phase (pH 7.0) mixing of the γ-AlOOH nanosheets (zeta potential: 30.7 ± 0.8 mV) and inorganic nanocrystals with negative surface charge, including Au nanoparticles, Au nanorods, CdSe quantum dots, CdSe/CdS/ZnS quantum dots and CdSe nanorods, the nanocomposites are self-assembled via electrostatic interactions. Negatively charged inorganic nanostructures with a wide range of chemical compositions, shapes, sizes, surface ligands and adsorbates can be used as building blocks for γ-AlOOH nanocomposites. Adsorption densities of inorganic nanocrystals on the nanocomposites can be controlled by varying concentrations of nanocrystal solutions. Nanocomposite films containing alternating layers of γ-AlOOH and nanocrystals are obtained by a simple drop casting method.
Starting Page	4497
Ending Page	4504
Page Count	8
File Format	HTM / HTML PDF
ISSN	20507526
Volume Number	1
Issue Number	29
Journal	Journal of Materials Chemistry C
DOI	10.1039/c3tc30756e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Hydrothermal synthesis PH Zeta potential Quantum tunnelling Adsorption Nanocrystal Nanocomposite
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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