Removal of methylene blue from contaminated water by newly prepared nickel catalyst.

Water bodies had been polluted with contaminants discharged from industrial activities
like dyes, pesticides and pharmaceutical in recent years. So, many alternatives had been
used to treat the water contamination in water stream like activated carbon and adsorption
methods. This research aim is to study the preparation and characterization of Nickel-
Tannin/Chitosan by evaluating the catalytic activity effects on newly prepared catalyst.
The catalyst was prepared by added Nickel Nitrate Hexahydrate, Ni(NO3)6H2O with
Tannin-Chitosan support which form Nickel-Tannin/Chitosan when undergoes several
steps of reaction like hydrogenation process. The prepared Nickel-Tannin/Chitosan was
characterized using FTIR, XRD and SEM then used as catalyst in aqueous medium for
oxidative degradation of 0.5M methylene blue. In this study, methylene blue acted as the
pollutants to test the ability of Nickel Tannin/Chitosan as catalyst. Three different
temperatures of 38°C,48°C and 58°C were conducted to test the percentage of dye
degraded where time and concentration of methylene blue was observed in catalytic
activity. From the results, about 74% of methylene blue degraded at 58°C with the presence
of catalyst and hydrogen peroxide. This research showed Nickel Tannin/Chitosan has great
ability as new catalyst which exhibit catalytic performance which can be used in the future
especially for water treatment technology.