Removal of Heavy Metals Using Nanostructured Graphite Oxide, Silica Nanoparticles and Silica/ Graphite Oxide Composite

Sheet, Imtithal; Kabbani, Ahmad; Holail, Hanafy

doi:10.1016/j.egypro.2014.06.016

Cited by 136 publications

(43 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thus, removal of this hazardous heavy metal has become a major goal and research interest among several researchers and led to the development of diverse methods. Although several methods have been devised, bio-sorption using bio-based particles/nanoparticles has been considered highly efficient (Lasheen et al 2013;Sheet et al 2014;Abdel-Raouf and Abdul-Raheim 2017;Mane et al 2011;Ahluwalia and Goyal 2007) due to the large surface-to-volume ratio of nanoparticles compared to the bulk materials (Rajput et al 2016). Using SPIONs is the better option, since superparamagnetic iron oxide nanoparticles (SPIONs) obey to external magnetic field; thus, it is easier to remove after the adsorption process (Gill et al 2017) and also it is low toxic and non-reactive to human and majorly it has very strong adsorption capacity (Lasheen et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Utilization of chitosan-coated superparamagnetic iron oxide nanoparticles for chromium removal

et al. 2018

View full text Add to dashboard Cite

Superparamagnetic iron oxide nanoparticles (SPIONs) have been widely used for their versatility, while it is coated with a biopolymer like chitosan that adds attraction and also increases its applications. In this study, SPION was synthesized by chemical co-precipitation method, characterized using various analytical techniques like UV-Vis, FTIR, SEM, EDX, TEM, AFM, XRD, zeta potential and Raman spectroscopy analysis. Chitosan was coated onto the SPIONs and used for water treatment to remove chromium (450 ppm concentration). Chitosan-coated SPIONs were found to remove about 80% of chromium. Freundlich model was found to be fitting better for the current study.

show abstract

Section: Introductionmentioning

confidence: 99%

Utilization of chitosan-coated superparamagnetic iron oxide nanoparticles for chromium removal

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Predescu and Nicolae (2012) synthesized a nano-composite particle from γ-Fe 2 O 3 with AMBERLITE cationic exchange resin and reported that the nano-composite material had remarkable adsorption efficiency in the removal of some toxic metal ions as Zn, Cu, Cr. Nassar et al (2014) Nanostructured graphite oxide, silica/graphite oxide composites and silica nanoparticles were investigated for the removal of the heavy metal ions from aqueous solutions by a batch adsorption method (Sheet et al 2014). The results revealed that the adsorption of heavy metals by nanostructured graphite oxide was observed in the following order: nickel > zinc > lead > cadmium > chromium.…”

Section: Polymeric/inorganic Nanoparticlementioning

confidence: 99%

Removal of heavy metals and pollutants by membrane adsorption techniques

2018

View full text Add to dashboard Cite

Application of polymeric membranes for the adsorption of hazardous pollutants may lead to the development of next-generation reusable and portable water purification appliances. Membranes for membrane adsorption (MA) have the dual function of membrane filtration and adsorption to be very effective to remove trace amounts of pollutants such as cationic heavy metals, anionic phosphates and nitrates. In this review article, recent progresses in the development of MA membranes are surveyed. In addition, recent progresses in the development of advanced adsorbents such as nanoparticles are summarized, since they are potentially useful as fillers in the host membrane to enhance its performance. The future directions of R&D in this field are also shown in the conclusion section.

show abstract

“…Since biosorbents effectively and quickly possess dissolved metal ions, sequestering their property, and decrease the concentration of heavy metal ions in solution from ppm to ppb level, they are an ideal candidate for the treatment of high-volume and lowconcentration complex wastewaters [13][14][15][16]. Various natural materials of biological origin, including different plant species [17,18], bacteria [19], fungi [20], yeast, algae, etc., have been utilized as biosorbents.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Biosorption of Pb(II), Cu(II), and Ni(II) ions onto novel lowcost P. eldarica leaves-based biosorbent: isotherm, kinetics, and operational parameters investigation

Asgarzadeh

Faez

Maleki

et al. 2016

Desalination and Water Treatment

View full text Add to dashboard Cite

In this study, the novel low-cost Pinus eldarica leaves-based biosorbent (Pe) was introduced to remove heavy metal ions from aqueous media. The Pe ability of Pb(II), Cu(II), and Ni(II) ions biosorption was investigated in aqueous solutions. The maximum sorption capacity was 40, 26, and 33 mg g −1 for Pb(II), Cu(II), and Ni(II), respectively, that was so promising. Experiments were carried out in lab-scale batch reactors as function of initial pH (pH 0 ), initial concentration of heavy metal ions (C 0 ), and contact time (t). The statistical analysis was applied to determine the significant parameters, rank of parameter influences, and type of influences. The adsorption kinetics data were modeled using the pseudo-first, pseudosecond-order, and intraparticle diffusion kinetics equations. The pseudo-first-order and pseudo-second-order kinetics equations described the adsorption kinetics very well. Finally, the equilibrium data were described by 15 isotherm models with different number of parameters from two to five. The results revealed that the Langmuir and Fritz-Schlunder models provided the best correlation of the experimental data.

show abstract

Removal of Heavy Metals Using Nanostructured Graphite Oxide, Silica Nanoparticles and Silica/ Graphite Oxide Composite

Cited by 136 publications

References 18 publications

Utilization of chitosan-coated superparamagnetic iron oxide nanoparticles for chromium removal

Utilization of chitosan-coated superparamagnetic iron oxide nanoparticles for chromium removal

Removal of heavy metals and pollutants by membrane adsorption techniques

Biosorption of Pb(II), Cu(II), and Ni(II) ions onto novel lowcost P. eldarica leaves-based biosorbent: isotherm, kinetics, and operational parameters investigation

Contact Info

Product

Resources

About