Preparation of polyamine grafted bentonite by surface-initiated atom transfer radical polymerization for efficient adsorption of Orange I from aqueous solution
NEW JOURNAL OF CHEMISTRY(2017)
Abstract
A poly(glycidyl methacrylate) (PGMA) grafted bentonite (Bent) was prepared by surface-initiated atom transfer radical polymerization (SI-ATRP), followed by modification with tetraethylenepentamine (TEPA) through a ring-opening reaction of the epoxy groups in PGMA to form polyamine grafted bentonite (Bent-PGMA-TEPA). The as-prepared novel material was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermal gravimetric analysis (TGA). The ability of Bent-PGMA-TEPA to adsorb Orange I (OI), a negatively charged dye, was tested. The effects of pH, initial concentration, contact time and temperature were investigated. The equilibrium adsorption isotherm and adsorption kinetics fitted well with the Langmuir model and the pseudo-second-order kinetic model respectively.
MoreTranslated text
Key words
efficient adsorption,bentonite,radical polymerization,surface-initiated
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined