title: The removal of bisphenol A from aqueous solutions by MIL-53(Al) and mesostructured MIL-53(Al).
abstract: In this work, metal-organic framework MIL-53(Al){Al(OH)[O2C-C6H4-CO2]} and MIL-53(Al)-F127{Al(OH)[O2C-C6H4-CO2]} were synthesized and used as sorbents to remove bisphenol A (BPA) from aqueous system. The sorption kinetics data of BPA were found to be in agreement with the pseudo-second-order model. The equilibrium sorption amounts of BPA on MIL-53(Al) and MIL-53(Al)-F127 reached 329.2±16.5 and 472.7±23.6 mg g(-1), respectively, far more than that of commercial activated carbons (ranging from 129.6 to 263.1 mg g(-1)). Both MIL-53(Al) and MIL-53(Al)-F127 could remove BPA fast from aqueous solutions, and the required contact time to reach equilibrium was approximately 90 min for MIL-53(Al) and 30 min for MIL-53(Al)-F127, respectively. The optimum pH levels for the removal of BPA using MIL-53 (Al) and MIL-53(Al)-F127 were 4 and 6 separately. The optimum temperature for the sorption behavior of BPA on the two sorbents was 20 °C. The results performed show that the resulting products, as one kind of MOFs, can be regarded as a new class of sorbents for water treatment and could find great applications in the fields of environmental water pollution control and resources reuse.
authors.affiliation: College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
authors.forename: Meimei
authors.initials: M
authors.lastname: Zhou
authors.forename: Yi-Nan
authors.initials: YN
authors.lastname: Wu
authors.forename: Junlian
authors.initials: J
authors.lastname: Qiao
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.forename: Amanda
authors.initials: A
authors.lastname: McDonald
authors.forename: Guangtao
authors.initials: G
authors.lastname: Li
authors.forename: Fengting
authors.initials: F
authors.lastname: Li
mesh_terms: D000042:Absorption; D000327:Adsorption; D000535:Aluminum; D001559:Benzhydryl Compounds / Q000032:analysis / Q000302:isolation & purification*; D004058:Diffusion; D006863:Hydrogen-Ion Concentration; D008238:Lysergic Acid Diethylamide / Q000031:analogs & derivatives* / Q000737:chemistry; D010636:Phenols / Q000032:analysis / Q000302:isolation & purification*; D013696:Temperature; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*; D014961:X-Ray Diffraction; D000098826:Bisphenol A Compounds
chemical_list: D000535:Aluminum; D001559:Benzhydryl Compounds; D008238:Lysergic Acid Diethylamide; D010636:Phenols; D014867:Water; D014874:Water Pollutants, Chemical; C048042:N(1)-methyl-2-lysergic acid diethylamide; C006780:bisphenol A; D000098826:Bisphenol A Compounds