Aurivillius Bi7Fe3−xNixTi3O21 nanostructures as recyclable photocatalysts. (30th August 2019)

• Record Type: Journal Article
• Authors: Xie, Xi; Sun, Hui; Xu, Zirou; Wang, Minggui; Chen, Xiaobing; Han, Jie
• Is Part Of: New journal of chemistry. Volume 43:Number 37(2019)
• Page Start: 14714
• Page End: 14719
• Publication Date: 2019-08-30
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c9nj02834j
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Multiferroic Bi7 Fe3− x Ni x Ti3 O21 nanosheets have been prepared, where the substitution of Ni for Fe leads to improved ferromagnetism and photocatalytic performance. Abstract : A photocatalyst in practical application should integrate together various functions including a visible light response and a feasible and economic recyclability. Herein, a kind of six-layered Aurivillius oxide with a narrow band gap and ferromagnetism (FM) was investigated. Ni-doped Bi7 Fe3 Ti3 O21 (Bi7 Fe3− x Ni x Ti3 O21 : BFNTO- x, x = 0.1, 0.4, 0.6, and 1) nanostructures have been synthesized using a hydrothermal method, where Ni substitution for Fe can enhance the FM and specific surface area, as well as improve the photocatalytic activity. The BFNTO-0.6 nanostructure exhibits the maximum saturated magnetization of 2 M s ∼ 3.58 emu g −1 at room temperature, which enables the nanostructure to be fully recyclable simply by using a bar magnet. This research may open a new way for the development of new visible-light-induced photocatalysts because Aurivillius oxide with a layer structure has powerful potential in optimizing its structure and properties by doping.