Dual removal and selective recovery of phosphate and an organophosphorus pesticide from water by a Zr-based metal-organic framework
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AuthorGonzález García, Lydia; Carmona Fernández, Francisco Jesús; Rodríguez Navarro, Jorge Andrés; Barea Martínez, Elisa María; Rodríguez Maldonado, Carmen
EutrophicationPhosphorus circular economyOrganophosphatesWater decontamination
L. González... [et al.]. Dual removal and selective recovery of phosphate and an organophosphorus pesticide from water by a Zr-based metal-organic framework, Materials Today Chemistry, Volume 22, 2021, 100596, ISSN 2468-5194, [https://doi.org/10.1016/j.mtchem.2021.100596]
SponsorshipMarie Sklodowska-Curie Individual Fellowships within the European Union H2020 programme H2020-MSCA-IF-2019-EF-ST-888972-PSustMOF H2020-MSCA-IF-2016-GF-749359-EnanSET; European Commission; MINECO CTQ2017-84692-R PID2020-113608RB-I00 PEJ2018-004022-A; Universidad de Granada (Plan Propio de Investigacion and Programa Operativo FEDER Andalucia 2014-2020) B-FQM-364-UGR18; Junta de Andalucia P18-RT-612; 2020 Post-doctoral Junior Leadere-Retaining Fellowship, la Caixa Foundation 100010434 LCF/BQ/PR20/11770014; Universidad de Granada / CBUA
Zr-based metal-organic framework [Zr6(m3-O)4(m3-OH)4(OH)4(H2O)4(1,3,6,8-tetrakis(p-benzoate)pyrene) 2] (NU-1000) has been successfully used to remove phosphate and fenamiphos (an organophosphorus pesticide) from water solutions. In order to approach practical conditions, these studies have been performed under dynamic conditions and in the presence of relevant interferences, such as hydrogen carbonate. The results show that NU-1000 is able to adsorb 0.19 mol/mol of phosphate, reaching a plateau after 20 min, while 0.89 mol/mol fenamiphos is captured after 120 min. Afterward, a three-step strategy has been designed, allowing quantitative recovery of both phosphate anions and fenamiphos, separately, and ulterior adsorbent regeneration. Noteworthy, after this treatment, NU-1000 maintains a good performance toward the dual removal and selective desorption of phosphate and fenamiphos for at least two additional cycles.