Preparation of Ultrathin Two-Dimensional TixTa1−xSyOz Nanosheets as Highly Efficient Photothermal Agents

Chaoliang Tan, Lingzhi Zhao, Peng Yu, Ying Huang, Bo Chen, Zhuangchai Lai, Xiaoying Qi, Min Hao Goh, Xiao Zhang, Shikui Han, Xue Jun Wu, Zheng Liu, Yanli Zhao, Hua Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

47 Citations (Scopus)

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, TixTa1−xSyOz (x=0.71, 0.49, and 0.30), from TixTa1−xS2 precursors. The nanosheet exhibits strong absorbance in the near-infrared region, giving a large extinction coefficient of 54.1 L g−1 cm−1 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.

Original languageEnglish
Pages (from-to)7842-7846
Number of pages5
JournalAngewandte Chemie - International Edition
Volume56
Issue number27
DOIs
Publication statusPublished - 26 Jun 2017
Externally publishedYes

Keywords

  • anti-cancer agents
  • hybrid nanosheets
  • photothermal therapy
  • titanium
  • two-dimensional structures

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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