Abstract
A novel magnetic polydopamine (PDA) and chitosan (CS) hybrid nano-biosorbent was fabricated by assembling biomimetic polymer (PDA) and CS onto magnetic nanoparticles (NPs). The resulting PDA/CS/Fe3O4 nano-absorbent was characterized by means of the Fourier transform infrared spectra (FT-IR), transmission electron microscope (TEM), elemental analysis, vibrating sample magnetometer (VSM), and X-ray photoelectron (XPS). Based on the high surface area of nanoparticles and high-level active sites from polydopamine and chitosan, a multiple interactions to absorb pollutants with of resulted biosorbent can be anticipated. Demonstrated by batch tests, the nano-absorbent showed highly effective adsorption ability for target heavy metals and dyes, the maximum adsorption capacity was up to 245.6mg g−1, 47mg g−1, 151.6mg g−1, 204mg g−1 and 61mg g−1 and the removal percentage reached 98.4%, 92%, 95.8%, 96.9% and 92.5% for Hg(II), Pb(II), Cr(Ⅵ), Methylene blue and malachite green, respectively. Consequently, PDA/CS/Fe3O4 with excellent absorbability, stability and reusability could be used as a promising adsorbent for removal multiple pollutants in wastewaters.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Taiwan Institute of Chemical Engineers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
