Related Experiment Video
Updated: Jan 19, 2026
Chemical Reactions in Aqueous Solutions
Synthesize and characterization of binary grafted psyllium for removing toxic mercury (II) ions from aqueous solution
Deepak Kumar1, Jyoti Pandey2, Nida Khan3
1Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow 226025, U.P., India; Department of Applied Chemistry, M J P Rohilkhand University, Bareilly 243006, U.P., India.
Abstract:
Acrylamide and acrylonitrile were grafted on psyllium employing ceric ammonium nitrate (CAN) as initiator under N2 atmosphere to get an adsorbent of mercury ions. The synthesized adsorbent was optimized by varying synthetic parameters viz. monomer concentration, reaction time, temperature, initiator concentration, etc. to obtain the maximum yield of the grafted product as well as maximum adsorption of ionic mercury. The synthesized adsorbent was characterized by FT-IR, SEM, XRD, zeta potential and thermal techniques. The effect of various process parameters such as pH, time, adsorption dose and temperature on Hg (II) adsorption was investigated. The maximum Hg (II) adsorption (96%) was achieved at temperature (30 °C), dose (30 mg), pH (6), time (60 min) and initial concentration of mercury with 100 ppm. The Hg(II) adsorption on Psy-g-Poly (Am-co-An) was confirmed by XPS study. The isotherm data of the adsorption experiments obeyed the classical Langmuir adsorption isotherm. On the other hand, the kinetic data followed the second-order kinetics, indicating the chemisorption mechanism.
Related Concept Videos
03:03Chemical Reactions in Aqueous Solutions
02:42Aqueous Solutions and Heats of Hydration
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
07:30Determining the Mass Percent Composition in an Aqueous Solution
Determining the composition of a solution is an important analytical and forensic technique. When solutions are made with water, they are referred to as being aqueous, or containing water. The primary component of a solution is referred to as the solvent, and the dissolved minor component is called the solute. The solute is dissolved in the solvent to make a solution. Water is the most common...
08:18Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
02:11Leveling Effect and Non-Aqueous Acid-Base Solutions
The Leveling Effect of a Solvent
A generic acid (HA) reacts with the generic base (B-) to yield the corresponding conjugate base (A-) and conjugate acid (HB):
08:41Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions