Video Experimental Relacionado

Updated: Feb 6, 2026

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide

Published on: June 28, 2019

Un hidróxido doble laminar ternario Cu-Co-Fe modificado con un marco orgánico a base de hierro mejora la eliminación

Zhuo Han^1,2, Haofeng Wu², Ge Niu²

¹College of Chemical Engineering, State Key Laboratory of Green Chemical Synthesis and Conversion, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P.R. China. sheyb@zjut.edu.cn.

Dalton transactions (Cambridge, England : 2003)

|February 4, 2026

Abstract:

Adsorption has emerged as a green and promising solution for antibiotic removal in wastewater treatment systems, driving an urgent demand for designing high-performance and eco-friendly adsorbents that enable rapid and efficient elimination of antibiotic contaminants. Herein, a high-activity Fe-based metal-organic framework (Fe-MOF) was in situ integrated with a copper-cobalt-iron layered double hydroxide (CuCoFe-LDH) via a two-step hydrothermal synthesis process, successfully fabricating an engineered Fe-MOF@CuCoFe-LDH composite adsorbent that exhibits significantly enhanced adsorption capacity and broad applicability. The Fe-MOF nanospheres were uniformly hybridized into the two-dimensional nanocluster flakes of the ternary hydrotalcite CuCoFe-LDH, forming a hierarchical heterostructure. This synergistic configuration substantially boosted the density of active surface sites on the LDH-based adsorbent, resulting in significantly improved adsorption kinetics along with enhanced adsorbate-binding capacity. The removal efficiency of the tetracycline antibiotic (TC) by the as-prepared Fe-MOF@CuCoFe-LDH composite reaches 94.8%, even at a high initial TC concentration of 300 mg L^-1, which represents a 36.7% and 9.4% increase compared to that of pristine Fe-MOF and CuCoFe-LDH, respectively. A high Langmuir maximum adsorption capacity of 2500 mg g^-1 was achieved. The adsorption mechanism was speculated to involve metal complexation, metal-π, H-bonding and electrostatic interactions as well as hydrophobic interactions. In addition, the Fe-MOF@CuCoFe-LDH composite demonstrated exceptional cycling stability, retaining 97.8% TC removal efficiency for five adsorption-desorption cycles, highlighting its outstanding adaptability and promising potential for practical wastewater remediation applications.

Palabras clave:

hidróxidos dobles laminares tetraciclina adsorción remediación de aguas residuales materiales compuestos

Más Videos Relacionados

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Published on: October 10, 2013

In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework

In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework

Published on: February 1, 2020

Videos de Conceptos Relacionados

Ions as Acids and Bases

Ions as Acids and Bases

Salts with Acidic Ions
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:

Antibiotic Selection

Antibiotic Selection

Analyte Adsorption and Distribution

Analyte Adsorption and Distribution

In certain chromatographic separations, solutes transfer between the mobile phase and the stationary phase via sorption, which typically refers to the process of adsorption. For many chromatographic systems, the sorption process often depends on the polarity of the compounds—an expression of the overall dipole moment within the molecule. During the separation process, there is competition between the solute and solvent for adsorption to the stationary phase. Highly polar compounds and...

Organic Compounds

Organic Compounds

All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...

Types of Genetic Transfer Between Organisms

Types of Genetic Transfer Between Organisms

Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.

Self-Evaluation: Self-Enhancement and Self-Verification

Self-Evaluation: Self-Enhancement and Self-Verification

Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...