Cadmium removal from aqueous solution by jackfruit seed bio-adsorbent

In this present study, jackfruit bio-adsorbent was synthesized and utilized as cost effective for the removal of cadmium from aqueous solution. Jackfruit bio-adsorbent was characterized using emission scanning electron microscope, energy dispersive X-ray spectroscopy, thermal gravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffractive spectroscopy and inductively coupled plasma optical emissions spectrometer techniques. Effects of different parameters such as solution pH, dosage of adsorbent, stirring speed and concentration of cadmium removal were evaluated and optimized. The maximum adsorption was achieved at speed of 120 rpm, pH 7.6, 60 mg adsorbent dose and contact time for 1 h, the optimum adsorption efficiency of about 97.12% was observed even at lower adsorbent dosing of 60 mg. Activation energy of the jackfruit bio-adsorbent was also being evaluated, which was observed 130.69 kJ/mol using FWO method which attributed to a chemisorptions adsorption process.