Synthesize and characterization of binary grafted psyllium for removing toxic mercury (II) ions from aqueous solution

Add time:07/29/2019    Source:sciencedirect.com

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.

We also recommend Trading Suppliers and Manufacturers of MERCURY(II) (cas 14302-87-5). Pls Click Website Link as below: cas 14302-87-5 suppliers

Prev:High selective detection of mercury (II) ions by thioether side groups on metal-organic frameworks
Next:New efficient inorganic-organic nanofibers electrospun membrane for fluorescence detection and removal of mercury (II) ions)