Related Experiment Video
Updated: Jan 31, 2026

Sample Preparation in Quartz Crystal Microbalance Measurements of Protein Adsorption and Polymer Mechanics
Published on: January 22, 2020
A chitosan-thiomer polymer for highly efficacious adsorption of mercury
1Department of Chemistry, Faculty of Science, M. S. University of Baroda, Vadodara, India.
Abstract:
Thiomers have recently attracted attention as effective adsorbents for Hg2+. In the present study a chitosan- thiobarbituric acid based thiomer(CTG) was investigated as a potential adsorbent for elemental mercury (Hg°), inorganic mercury (Hg2+) and methyl mercury (CH3Hg+). CTG was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). Adsorption experiments were performed to optimize the parameters for maximum removal of Hg°, Hg2+ and CH3Hg+. The experimental data fitted well to Freundlich isotherm and pseudo second order kinetic models with high R2 and minimal error function values. The maximum adsorption capacities were determined to be 1367 ± 96.9, 2493 ± 174.6 and 2531 ± 178.4 mg/g for Hg°, Hg2+ and CH3Hg+ respectively. Quantitative desorption of Hg°, Hg2+ and CH3Hg+ from CTG could be performed using 0.01 N thiourea, 0.01 N HClO4 and 0.2 N NaCl respectively.
More Related Videos
10:27Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
Published on: July 14, 2015
13:42Solid-phase Submonomer Synthesis of Peptoid Polymers and their Self-Assembly into Highly-Ordered Nanosheets
Published on: November 2, 2011
Related Concept Videos
Polymers
Polymers
Analyte Adsorption and Distribution
Self-Efficacy
Polymer Classification: Architecture
Polymer Classification: Crystallinity
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...