Bi2WO6@carbon/Fe3O4 microspheres: preparation, growth mechanism and application in water treatment.
A novel Bi(2)WO(6)@carbon/Fe(3)O(4) nanostructure with a thin carbon interlayer was reported. Reactive carbon interlayer was introduced as a key component for the growth of Bi(2)WO(6) nanoplates on the magnetic Fe(3)O(4) microsphere. After the carbon layer was oxidized by the KMnO(4) in the basic solution, Bi(3+) ions could be adsorbed by the as produced -COO(-) groups and thus Bi(2)WO(6) nanoplates grew on the surface of the carbon/Fe(3)O(4) microspheres preferentially. The as-prepared nanocomposite, which could be easily recovered by a magnet, exhibited high efficiency in the photocatalytic decomposition of phenol with the assistance of H(2)O(2). The combination of photocatalyst and magnetic materials through a reactive carbon interlayer opens up a new route for the fabrication of complex and multifunctional nanostructure.
Zhang
Ling
L
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China.
Wang
Wenzhong
W
Shang
Meng
M
Sun
Songmei
S
Xu
Jiehui
J
D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D052203:Ferrosoferric Oxide / Q000737:chemistry*; D006861:Hydrogen Peroxide; D049329:Nanostructures / Q000737:chemistry*; D019800:Phenol / Q000737:chemistry / Q000528:radiation effects; D055668:Photochemical Processes; D018508:Water Purification / Q000379:methods*
D019800:Phenol; D002244:Carbon; D006861:Hydrogen Peroxide; D052203:Ferrosoferric Oxide