Room-temperature synthesis of bimetallic ZnCu-MOF-74 as an adsorbent for tetracycline removal from an aqueous solution

被引：8

作者：

Flores, Catalina V. ^{[1
,2
]}

Machin-Garriga, Andy ^{[1
]}

Obeso, Juan L. ^{[1
,2
]}

Flores, J. Gabriel ^{[4
,5
]}

Ibarra, Ilich A. ^{[2
,6
]}

Portillo-Velez, Nora S. ^{[3
]}

Leyva, Carolina ^{[1
]}

Peralta, Ricardo A. ^{[3
]}

机构：

[1] CICATA U Legaria, Inst Politecn Nacl, Lab Nacl Ciencia Tecnol & Gest Integrada Agua LNAg, Legaria 694, Mexico City 11500, Mexico

[2] Univ Nacl Autonoma Mexico, Lab Fisicoquim & React Superf LaFReS, Inst Invest Mat, Circuito Exterior S-N, Mexico City 04510, Mexico

[3] Univ Autonoma Metropolitana UAM I, Dept Quim, Div Ciencias Basicas & Ingn, Mexico City 09340, Mexico

[4] Univ Autonoma Metropolitana Iztapalapa, Dept Ingn Proc & Hidraul, Div Ciencias Basicas & Ingn, Mexico City 09340, Mexico

[5] Univ Autonoma Metropolitana Azcapotzalco, Dept Ciencias Basicas, Area Quim Aplicada, Mexico City 02200, Mexico

[6] Univ Autonoma Metropolitana Iztapalapa, Sabbat Catedra Dr Douglas Hugh Everett Dept Quim, Ave San Rafael Atlixco 186,Leyes Reforma 1ra Secc, Mexico City 09310, Mexico

来源：

DALTON TRANSACTIONS | 2024年 / 53卷 / 47期

关键词：

ADSORPTION-ISOTHERM; WATER; CONTAMINANTS;

D O I：

10.1039/d4dt01607f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The novel bimetallic MOF, ZnCu-MOF-74, has been evaluated for the remediation of tetracycline-contaminated water. ZnCu-MOF-74 was obtained at room temperature, avoiding high pressure and temperature. ZnCu-MOF-74 exhibited chemical stability in the 4-8 pH range. The adsorption result analysis was described using the Elovich kinetic model and the Langmuir adsorption isotherm, suggesting a physicochemical process. The maximum adsorption capacity was estimated at 775.66 mg g-1. The pH of the solution and the presence of ions such as NO3-, SO42-, Na+, Mg2+, Cl-, and Ca2+ had no influence on the removal of tetracycline. In addition, pi-interactions and metal complexation were proposed as possible adsorption mechanisms through FT-IR and XPS. ZnCu-MOF-74 showed outstanding cyclability performance, preserving its adsorption capacity after 4 adsorption-desorption cycles, besides exhibiting chemical stability, proving the benefits of applying ZnCu-MOF-74 in the water treatment process. Tetracycline water remediation employing the bimetallic MOF ZnCu-MOF-74 synthesized at room temperature exhibits excellent performance, stability, and cyclability.

引用

页码：18917 / 18922

页数：6

共 34 条

[1] Adsorption of propane and propylene on M-MOF-74 (M = Cu, Co): Equilibrium and kinetic study [J].