Utilization of polyampholyte hydrogels for simultaneous removal of textile dyes from aqueous solutions

ABSTRACT

The study aimed to create hydrogel structures with greater functionality, otherwise known as polyampholytes (PAHs), and to use these in simultaneous removal studies for remazol-type dyes found in environmental waste waters. Adsorption studies were accomplished at 20°C and 35°C, indicated that adsorption process was exothermic in nature. The Q_m values for the PAH-dye systems were in the interval 111–122 mg dye/g PAH with Ads% from 94% to 98%. The ability of PAH hydrogels to adsorb two different species of dye molecules at the same time is an advantage of PAH adsorbents compared to other hydrogel adsorbents prepared in this area.

KEYWORDS:

• Polyampholytes
• dye
• adsorption
• isotherms
• simultaneous removal

Additional information

Funding

This research was supported by the Scientific Projects Commission of Canakkale Onsekiz Mart University, 2009/120.