Related Experiment Video
Updated: Jan 9, 2026

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
Nonlinear kinetics, isotherms, and thermodynamic approach in the carcinogenic ions elimination by Mn2.7Al0.3O4
Lakshmi Narayani R1, Malathi Challa2, Archna Narula3
1Department of Chemistry, M S Ramaiah Institute of Technology (Affiliated to VTU), Bangalore-54, India.
Abstract:
Alundum was integrated into hausmannite to synthesize a nano bimetallic oxide adsorbent Mn2.7Al0.3O4, for exploring its synergistic effect on the adsorption of carcinogenic ions. The characterization of Mn2.7Al0.3O4 revealed that the powder X-ray diffractogram confirmed the tetragonal structure corresponding to JCPDS No. 24-0734, and a platelet shape from the scanning electron microscopy (SEM) images. The Brunauer-Emmett-Teller (BET) studies disclosed a Type-IV isotherm with a H3 hysteresis loop, indicating a mesoporous structure of 1.968 m2/g surface area and 35.8 nm average pore diameter. The uptake mechanism of the carcinogenic ions onto the Mn2.7Al0.3O4 surface pronounced that adsorption followed pseudo-second-order kinetics. The adsorption capacity for Cd(II) ions was 174.6 mg/g and 75.4 mg/g for Pb(II) ions from the best fit Langmuir and the Sips models, which were authenticated by R2, RSS,ARE, and χ2 of the statistical functions, and close to the experimental results. The thermodynamic investigations announced that Cd (II) and Pb (II) ions adsorption was a spontaneous and exothermic process with a free energy change of -5.4 kJ ̸mol and ̶̶ 0.193 kJ/mol at 303 K. High adsorption capacity and easy recovery of adsorbent implied to use it for the carcinogenic ions adsorption in any aqueous stream.
More Related Videos
09:01Magnetic-, Acoustic-, and Optical-Triple-Responsive Microbubbles for Magnetic Hyperthermia and Pothotothermal Combination Cancer Therapy
Published on: May 22, 2020
08:34A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration
Published on: December 5, 2019
Related Concept Videos
Parameters Affecting Nonlinear Elimination: Zero-Order Input, First-Order Absorption and Two-Compartment Model
When a drug is administered through a constant intravenous infusion and eliminated via nonlinear pharmacokinetics, it follows zero-order input. For example, oral drugs undergo first-order absorption upon administration and are eliminated through nonlinear pharmacokinetics.
In the case of subcutaneously administered drugs,...
Nonlinear Pharmacokinetics: Michaelis-Menten Equation
Vmax represents the maximum achievable process rate, while KM, known as the Michaelis constant, signifies the drug concentration at which the process rate reaches half its maximum. This relationship between Vmax, KM, and Cp gives rise to three distinct...
Ion Exchange
Drug Distribution as One-Compartment Model and Elimination by Nonlinear Pharmacokinetics: Overview
For instance, consider the metabolism of sodium salicylate. This compound is metabolized into two distinct substances: a glucuronide and a glycine conjugate. The rate of conjugation depends...
Nonlinear Pharmacokinetics: Overview
Nonlinearity can arise due to the saturation of plasma protein-binding or...
Mutagenicity and Carcinogenicity