ZnFe2O4 nanoparticles: microwave-hydrothermal ionic liquid synthesis and photocatalytic property over phenol.
We report the microwave-hydrothermal ionic liquid (MHIL) synthesis and photocatalytic property over phenol of ZnFe(2)O(4) nanoparticles. Zn(CH(3)COO)(2).2H(2)O and Fe(NO(3))(3).9H(2)O were used as the zinc and iron sources, respectively, in the presence of CO(NH(2))(2) and the ionic liquid 1-n-butyl-3-methyl imidazolium tetrafluoroborate ([BMIM][BF(4)]). Deionized water was used as a solvent. The ionic liquid [BMIM][BF(4)] and microwave heating temperature have significant influences on the crystal phase of the product. Different dosages of [BMIM][BF(4)] or microwave heating temperature could lead to the formation of different products such as ZnFe(2)O(4) and beta-FeOOH. The MHIL method has the advantages such as simplicity, rapidness and energy saving. The ZnFe(2)O(4) nanoparticles prepared by the MHIL method exhibit high photocatalytic activity for the degradation of phenol, which was up to 73% within 360 min. The TOC measurement confirmed the good photocatalytic efficiency of ZnFe(2)O(4) nanoparticles.
Cao
Shao-Wen
SW
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China.
Zhu
Ying-Jie
YJ
Cheng
Guo-Feng
GF
Huang
Yue-Hong
YH
D002384:Catalysis; D052578:Ionic Liquids / Q000737:chemistry; D007477:Ions; D053768:Metal Nanoparticles / Q000032:analysis* / Q000737:chemistry; D008872:Microwaves; D008956:Models, Chemical; D036103:Nanotechnology / Q000379:methods*; D019800:Phenol / Q000737:chemistry*; D012997:Solvents; D013696:Temperature; D014867:Water / Q000737:chemistry; D018508:Water Purification / Q000379:methods
D052578:Ionic Liquids; D007477:Ions; D012997:Solvents; D014867:Water; D019800:Phenol