Highly efficient removal of heavy metal ions by amine-functionalized mesoporous Fe3O4 nanoparticles

By Xiaodong Xin, Qin Wei, Jian Yang, Liang-guo Yan, Rui Feng, G. Chen, B. Du, He Li. 2012

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Summary on Adsorption and Photocatalysis for Pollutant Remediation: Mini Review (2018, background): “It also checks whether pore diffusion is the sole rate-controlling mechanism [69]”
Fabrication of hyperbranched polyamine functionalized graphene for high-efficiency removal of Pb(II) and methylene blue (2016, methodology): “Four isotherm equations were selected to model the adsorption isotherm data including the Henry [46], Langmuir [47], Freundlich [48] and Temkin [49] equations, which can be expressed as follows: Henry equation: (7) Langmuir equation: (8) Freundlich equation: (9) Temkin equation: (10) where qm (mg g−”
Study on the adsorption of Cu(II) by EDTA functionalized Fe3O4 magnetic nano-particles (2013, result): “So the optimum pH for Cu(II) ion sorption is found in the pH range of 5–6 which is in accordance with previous reports [30,35–37].”
Recent progress and future challenges on the use of high performance magnetic nano-adsorbents in environmental applications (2014, background): “Amine-functionalized silica coated magnetic nanoparticles (MNPs@SiO2–NH2) and amine functionalized MNPs (MNPs–NH2) have demonstrated outstanding capability to remove a wide variety of heavy metals [132,133,136].”