ازالة الأصباغ الملوثة للماء بأستخدام بوليمر نانوي جديد

Removal of Water-Polluting Dyes Using a New Nano co-polymer

ABSTRACT
The grafted nano-copolymer was synthesized by esterification process, by dissolving method to preparing a linear co-polymer as a first step from the reaction of (2.0 mole) Terphthalic acid with (1.0 mole) Glycerol. About (0.5 mole) of Maleic anhydride was added to the resulting linear co-polymer solution to get the graft nano co-polymer, as shown in the below equations:

The first step; Synthesis linear nano-copolymer

Second step Synthesis of nano graft PTGM particles.
This nano co-polymer was characterized by several techniques (FT-IR, 1H-NMR and AFM). The AFM results showed that the average particle size of the nano co-polymer is 74.39 nm, this proves that the prepared co-polymer is nano scale.
The decontamination of three types of dyes (Reactive Yellow145 , Orange-G and Disperse Red 1) from their aqueous solutions was studied.
The effect of three temperatures (298, 308 and 318 K) and four different concentrations (1, 3, 5 and 7 ppm) of nano co-polymer has been studied and it is clear that they play a very important role in the adsorption process, and the experimental results showed that the adsorption of dyes (Reactive Yellow145 ) on the surface of this nano polymer decreases with increasing temperature, which means that the process is an exothermic process, while the experimental results showed that the adsorption of dyes (Orange-G and Disperse Red 1) on the surface of this nano co-polymer increases with increasing temperature, which means that the process is an endothermic process.
showed a high effectiveness of nano co-polymer in the disposal of pollutants (Reactive Yellow145, Orange-G and Disperse Red 1) dyes.