title: Organic-Base-Driven Intercalation and Delamination for the Production of Functionalized Titanium Carbide Nanosheets with Superior Photothermal Therapeutic Performance.
abstract: The delamination of titanium carbide sheets, an intriguing class of two-dimensional materials, has been critically dependent on the extraction of interlayer Al in acidic media, such as concentrated hydrofluoric acid (HF) or a mixture of hydrochloric acid (HCl) and a fluoride salt. Herein, we report an organic-base-driven intercalation and delamination of titanium carbide that takes advantage of the amphoteric nature of interlayer Al. The resulting aluminum-oxoanion-functionalized titanium carbide sheets manifested unusually strong optical absorption in the near-infrared (NIR) region with a mass extinction coefficient as high as 29.1 L g-1cm-1at 808 nm. Thus, the performance of this material is comparable or even superior to that of state-of-the-art photoabsorption materials, including gold-based nanostructures, carbon-based materials, and transition-metal dichalcogenides. Preliminary studies show that the titanium carbide sheets serve as efficient photothermal agents against tumor cells.
authors: College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
authors: Jinnan
authors: J
authors: Xuan
authors: College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
authors: Zhiqiang
authors: Z
authors: Wang
authors: Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China.
authors: Yuyan
authors: Y
authors: Chen
authors: College of Chemistry, Beijing Normal University, Beijing, 100875, China.
authors: Dujuan
authors: D
authors: Liang
authors: Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China.
authors: Liang
authors: L
authors: Cheng
authors: College of Chemistry, Beijing Normal University, Beijing, 100875, China.
authors: Xiaojing
authors: X
authors: Yang
authors: Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China.
authors: Zhuang
authors: Z
authors: Liu
authors: International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
authors: Renzhi
authors: R
authors: Ma
authors: International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
authors: Takayoshi
authors: T
authors: Sasaki
authors: College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
authors: Fengxia
authors: 0000-0001-5557-4165
authors: F
authors: Geng
keywords: delamination; layered structures; materials science; photothermal therapy; titanium carbide