High performance graphene-based PVF foam for lead removal from water
作者： Mohammed Yosef , Alaa Fahmy , Walid El Hotaby , Ali M. Hassan , Ahmed S.G. Khalil
DOI: 10.1016/J.JMRT.2020.08.011
关键词:
摘要: Abstract The synthesis and optimization of superior eco-friendly sorbents for Pb(II) pose a great challenge in the field water treatment. sorbent was developed by introducing graphene oxide (GO) into matrix polyvinyl formaldehyde (PVF) foam. immobilization GO PVF results significant increase maximum adsorption capacity (Qt) powder Pb(II), from ≈800 to ≈1730 mg g−1 case GO/PVF As compared with aqueous solutions, keeps sheets stable without any agglomeration. large surface area sheet allows abundant oxygenated functional groups on its participate effectively process, leading huge Qt. Adsorption isotherms kinetic studies indicated that sorption process done heterogenous ion-exchange reaction. foam showed an excellent reusability more than 10 cycles almost same efficiency change physical properties.
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