Green synthesis of mesoporous flower-like TiO2/graphite nanosheets (TGNS) prepared by high-pressure homogenization (HPH). (8th January 2018)

• Record Type: Journal Article
• Authors: Wei, Qiushi; Chen, Jiewei; Xue, Feng; Ding, Enyong
• Is Part Of: New journal of chemistry. Volume 42:Number 3(2018)
• Page Start: 1779
• Page End: 1786
• Publication Date: 2018-01-08
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj04385f
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : TiO2 particles uniformly spread on graphite nanosheets (GNS) by utilizing the broken edges brought by high-pressure homogenization. Abstract : A facile and green method is developed to prepare mesoporous TiO2 /graphite nanosheets composite (TGNS) that possesses uniform flower-like TiO2 particles, high surface area of 337.22 m 2 g −1 and a high photocatalytic ability in the visible-light region due to the better surface integrity of graphite nanosheets (GNS) compared to rGO, which accelerates the optoelectronic transmission and prohibits the recombination of the optoelectron and hole (h + ), this composite shows excellent near-infrared absorption. The TGNS composite with irregular defects on the edges was prepared using GNS via an environment-friendly physical process—high-pressure homogenization (HPH). Moreover, taking advantage of the broken edges brought on by HPH as starting active points paves a new way for the TiO2 crystal formation on carbon materials. Hence, TiO2 particles can spread uniformly on the GNS.