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Wang T, Han L, Li X, Chen T, Wang S. Functionalized UiO-66-NH2 by trimellitic acid for highly selective adsorption of basic blue 3 from aqueous solutions. Front Chem 2022; 10:962383. [PMID: 36118324 PMCID: PMC9480502 DOI: 10.3389/fchem.2022.962383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
A novel metal-organic framework (MOF) UiO-66-TLA (UiO-66-Trimellitic Acid) was synthesized by one-pot method with trimellitic acid as modifier, which can effectively remove the basic dye Basic Blue 3 (BB3) in wastewater. Modification with carboxyl groups facilitates the adsorption of the cationic dye Basic Blue 3. The adsorption of BB3 by the modified UiO-66-TLA was significantly greater than that of its parent MOF. The adsorption capacity of the modified UiO-66-TLA for BB3 (234.23 mg g−1) was 93.2% higher than that of the original UiO-66-NH2 (121.24 mg g−1), this is closely related to the electrostatic interaction of -COOH in trimellitic acid. UiO-66-TLA was successfully synthesized as indicated by various characterization results. The adsorption kinetics conformed to the pseudo-second-order model, and the adsorption isotherm conformed to the Redlich-Peterson isotherm. This indicates that BB3 is a multi-parameter model of monolayer/multilayer arrangement on the adsorbent surface, and its rate-controlling step is chemisorption. The adsorption process was non-spontaneous and belonged to an endothermic reaction, in addition, it has great adsorption stability and regeneration The interaction of the modified UiO-66-TLA with BB3 was mainly affected by mechanisms, such as electrostatic interaction, π–π stacking as well as the abundant functional groups on UiO-66-TLA surface. These results demonstrate that UiO-66-TLA is an efficient, regenerable, water-stable material for the removal of BB3 in solution, with practical implications, suggesting its potential as a dye adsorbent.
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Affiliation(s)
- Tingting Wang
- Innovation Laboratory of Materials for Energy and Environment Technologies, Tibet University, Lhasa, China
- Hofmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen, China
- Institute of Oxygen Supply, Everest Research Institute, Tibet University, Lhasa, China
- Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, Lhasa, China
| | - Lin Han
- Innovation Laboratory of Materials for Energy and Environment Technologies, Tibet University, Lhasa, China
- Hofmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen, China
- Institute of Oxygen Supply, Everest Research Institute, Tibet University, Lhasa, China
- Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, Lhasa, China
| | - Xin Li
- Innovation Laboratory of Materials for Energy and Environment Technologies, Tibet University, Lhasa, China
- Hofmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen, China
- Institute of Oxygen Supply, Everest Research Institute, Tibet University, Lhasa, China
- Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, Lhasa, China
| | - Tianen Chen
- Hofmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen, China
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan, Liaoning, China
| | - Shifeng Wang
- Innovation Laboratory of Materials for Energy and Environment Technologies, Tibet University, Lhasa, China
- Institute of Oxygen Supply, Everest Research Institute, Tibet University, Lhasa, China
- Key Laboratory of Cosmic Rays (Tibet University), Ministry of Education, Lhasa, China
- *Correspondence: Shifeng Wang,
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