title: High efficiency adsorption and removal of selenate and selenite from water using metal-organic frameworks.
abstract: A series of zirconium-based, metal-organic frameworks (MOFs) were tested for their ability to adsorb and remove selenate and selenite anions from aqueous solutions. MOFs were tested for adsorption capacity and uptake time at different concentrations. NU-1000 was shown to have the highest adsorption capacity, and fastest uptake rates for both selenate and selenite, of all zirconium-based MOFs studied here. Herein, the mechanism of selenate and selenite adsorption on NU-1000 is explored to determine the important features that make NU-1000 a superior adsorbent for this application.
authors.affiliation: †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States.
authors.forename: Ashlee J
authors.initials: AJ
authors.lastname: Howarth
authors.affiliation: †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Katz
authors.affiliation: †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States.
authors.forename: Timothy C
authors.initials: TC
authors.lastname: Wang
authors.affiliation: ‡X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States.
authors.forename: Ana E
authors.initials: AE
authors.lastname: Platero-Prats
authors.affiliation: ‡X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States.
authors.forename: Karena W
authors.initials: KW
authors.lastname: Chapman
authors.affiliation: †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States.
authors.forename: Joseph T
authors.initials: JT
authors.lastname: Hupp
authors.affiliation: †Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States.|§Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 22254, Saudi Arabia.
authors.forename: Omar K
authors.initials: OK
authors.lastname: Farha
mesh_terms: D000327:Adsorption; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D064586:Selenic Acid / Q000737:chemistry / Q000302:isolation & purification*; D020887:Selenious Acid / Q000737:chemistry / Q000302:isolation & purification*; D013499:Surface Properties; D014867:Water / Q000737:chemistry*; D015040:Zirconium / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D014867:Water; D015040:Zirconium; D020887:Selenious Acid; D064586:Selenic Acid