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Preparation of Ultrathin Two-Dimensional Ti xTa1− xS yO z Nanosheets as Highly Efficient Photothermal Agents.
- Source :
- Angewandte Chemie International Edition; 6/26/2017, Vol. 56 Issue 27, p7842-7846, 5p
- Publication Year :
- 2017
-
Abstract
- Although two-dimensional (2D) metal oxide/sulfide hybrid nanostructures have been synthesized, the facile preparation of ultrathin 2D nanosheets in high yield still remains a challenge. Herein, we report the first high-yield preparation of solution-processed ultrathin 2D metal oxide/sulfide hybrid nanosheets, that is, Ti<subscript> x</subscript>Ta<subscript>1− x</subscript>S<subscript> y</subscript>O<subscript> z</subscript> ( x=0.71, 0.49, and 0.30), from Ti<subscript> x</subscript>Ta<subscript>1− x</subscript>S<subscript>2</subscript> precursors. The nanosheet exhibits strong absorbance in the near-infrared region, giving a large extinction coefficient of 54.1 L g<superscript>−1</superscript> cm<superscript>−1</superscript> at 808 nm, and a high photothermal conversion efficiency of 39.2 %. After modification with lipoic acid-conjugated polyethylene glycol, the nanosheet is a suitable photothermal agent for treatment of cancer cells under 808 nm laser irradiation. This work provides a facile and general method for the preparation of 2D metal oxide/sulfide hybrid nanosheets. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 56
- Issue :
- 27
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 123715641
- Full Text :
- https://doi.org/10.1002/anie.201703597