Solvothermal synthesis of Fe-MOF-74 and its catalytic properties in phenol hydroxylation.
A Fe-containing metal-organic framework, Fe-MOF-74, was solvothermally synthesized using FeCl2.4H2O and 2,5-di-hydroxy-1,4-benzenedicarboxylic acid. Characterization was conducted by XRD, BET surface area measurement, FT-IR spectroscopy, TGA, and elemental analysis, which confirmed successful preparation of Fe-MOF-74 having an identical framework structure to that reported for MOF-74. Fe-MOF-74 was found to be an effective heterogeneous catalyst for the hydroxylation of phenol using H2O2 as an oxidant; 60% phenol conversion was achieved at 20 degrees C in water with 68 and 32% selectivity to catechol and hydroquinone, respectively. The effect of temperature, phenol/H2O2 mole ratio, catalyst quantity, and solvent on catalytic performance was discussed, and a reaction mechanism is proposed based upon the experimental results.
Bhattacharjee
Samiran
S
Department of Chemical Engineering, Inha University, Incheon 402-751, Korea.
Choi
Jung-Sik
JS
Yang
Seung-Tae
ST
Choi
Sang Beom
SB
Kim
Jaheon
J
Ahn
Wha-Seung
WS
D006861:Hydrogen Peroxide / Q000737:chemistry; D006900:Hydroxylation; D058085:Iron Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry*; D013696:Temperature; D014961:X-Ray Diffraction
D058085:Iron Compounds; D009942:Organometallic Compounds; D010636:Phenols; D006861:Hydrogen Peroxide