Synthesis and application of sulfonated polystyrene/ferrosoferric oxide/diazoresin nanocomposite microspheres for highly selective removal of dyes
| Autor: | Guoling Li, Zhun Li, Hailin Cong, Chengfeng Yang, Bing Yu, Qiaohong Peng |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Environmental pollution 02 engineering and technology 010402 general chemistry 01 natural sciences chemistry.chemical_compound symbols.namesake Adsorption Monolayer Polymer chemistry Methyl orange lcsh:TA401-492 General Materials Science Nanocomposite Mechanical Engineering Langmuir adsorption model 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Chemical engineering Mechanics of Materials symbols lcsh:Materials of engineering and construction. Mechanics of materials Polystyrene 0210 nano-technology Methylene blue |
| Zdroj: | Materials & Design, Vol 135, Iss, Pp 333-342 (2017) |
| ISSN: | 0264-1275 |
| Popis: | A versatile porous adsorbent of sulfonated polystyrene/ferrosoferric oxide/diazoresin (SPS/Fe3O4/DR) nanocomposite microspheres with magnetic property and acidic/basic groups was prepared and applied for removal of different dyes from water. The adsorbent showed good adsorption performance due to its functional groups and strong adsorption forces. The selective removal of methylene blue (MB) from MB/methyl orange (MO) mixture can be realized using this adsorbent. The adsorption uptake capacity of the adsorbents was 223.71 mg/g and the removal efficiency was more than 90% even after five adsorption-desorption cycles. This adsorbent could be readily separated from solution within 2 min using a magnet. Furthermore, adsorption kinetics for SPS/Fe3O4/DR followed by the pseudo-second order model. Isothermal equilibrium data were fitted with Langmuir model, which indicated the adsorption process is the monolayer adsorption. This novel, low cost and high effective adsorbent possesses great potential in environmental pollution cleanup. Keywords: Sulfonated polystyrene, Ferrosoferric oxide, Diazoresin, Adsorption, Dyes |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect