title: Mechanism of Fluorescence Enhancement of Biosynthesized XFe2O4-BiFeO3(X = Cr, Mn, Co, or Ni) Membranes.
abstract: Ferrites-bismuth ferrite is an intriguing option for medical diagnostic imaging device due to its magnetoelectric and enhanced near-infrared fluorescent properties. However, the embedded XFO nanoparticles are randomly located on the BFO membranes, making implementation in devices difficult. To overcome this, we present a facile bio-approach to produce XFe2O4-BiFeO3(XFO-BFO) (X = Cr, Mn, Co, or Ni) membranes using Shewanella oneidensis MR-1. The perovskite BFO enhances the fluorescence intensity (at 660 and 832 nm) and surface potential difference (-469 ~ 385 meV and -80 ~ 525 meV) of the embedded spinel XFO. This mechanism is attributed to the interfacial coupling of the X-Fe (e-or h+) and O-O (h+) interfaces. Such a system could open up new ideas in the design of environmentally friendly fluorescent membranes.
authors.affiliation: Institute of Gem and Material Technology, Hebei GEO University, Shijiazhuang, 050000, Hebei, China. bianliang555551@126.com.|Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, South West University of Science and Technology, Mianyang, 621010, Sichuan, China. bianliang555551@126.com.|Key Laboratory of Functional Materials and Devices under Special Environments, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China. bianliang555551@126.com.
authors.forename: Liang
authors.initials: L
authors.lastname: Bian
authors.affiliation: Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, South West University of Science and Technology, Mianyang, 621010, Sichuan, China.|Key Laboratory of Functional Materials and Devices under Special Environments, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China.
authors.forename: Hai-Long
authors.initials: HL
authors.lastname: Li
authors.affiliation: Department of Geology and Environmental Earth Science, Miami University, Oxford, 45056, USA.
authors.forename: Hai-Liang
authors.initials: HL
authors.lastname: Dong
authors.affiliation: Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, South West University of Science and Technology, Mianyang, 621010, Sichuan, China.
authors.forename: Fa-Qin
authors.initials: FQ
authors.lastname: Dong
authors.affiliation: Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, South West University of Science and Technology, Mianyang, 621010, Sichuan, China.
authors.forename: Mian-Xin
authors.initials: MX
authors.lastname: Song
authors.affiliation: Institute of Gem and Material Technology, Hebei GEO University, Shijiazhuang, 050000, Hebei, China.
authors.forename: Li-Sheng
authors.initials: LS
authors.lastname: Wang
authors.affiliation: Key Laboratory of Functional Materials and Devices under Special Environments, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China.
authors.forename: Wen-Ping
authors.initials: WP
authors.lastname: Hou
authors.affiliation: Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, South West University of Science and Technology, Mianyang, 621010, Sichuan, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Gao
authors.affiliation: Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, South West University of Science and Technology, Mianyang, 621010, Sichuan, China.|Key Laboratory of Functional Materials and Devices under Special Environments, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China.
authors.forename: Xiao-Yan
authors.initials: XY
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, South West University of Science and Technology, Mianyang, 621010, Sichuan, China.
authors.forename: Tian-Liang
authors.initials: TL
authors.lastname: Zhou
authors.affiliation: Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, 621900, Sichuan, China.
authors.forename: Guang-Ai
authors.initials: GA
authors.lastname: Sun
authors.affiliation: Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, 621900, Sichuan, China.
authors.forename: Xin-Xi
authors.initials: XX
authors.lastname: Li
authors.affiliation: Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, 621900, Sichuan, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Xie
keywords: Ferrite; Fluorescence; Hematite; Heterostructures; Shewanella oneidensis MR-1