Low cost zwitterionic adsorbent coating for treatment of anionic and cationic dyes

Publication date: 25 November 2018Source: Journal of Industrial and Engineering Chemistry, Volume 67Author(s): Syahida Farhan Azha, Muhamad Sharafee Shamsudin, Mohammad Shahadat, Suzylawati IsmailAbstractClay based coating with zwitterionic functionality is used to remove cationic and anionic dyes. Adsorbent coating was prepared by the mixing of bentonite clay, acrylic polymer (AP) and polyethylene-diamine (EPI-DMA). Characterization was performed using SEM-EDX, XRF, X-ray mapping and FTIR analyses. The adsorption capacity of ZACC was found to be increased from 59.35 to 255.99 mg/g and from 45.84 to 70.09 mg/g for BG and AR1 dyes, respectively using initial concentration (50–200 ppm). Significant adsorption capacity along with mechanical and chemical stability formulates ZACC as an excellent composite coating for treatment of anionic and cationic dyes from industrial wastewater.Graphical abstract

Source: Journal of Industrial and Engineering Chemistry - October 9, 2018 Category: Chemistry Source Type: research