Adsorptive removal of phosphate ions from aqueous solution using zirconia-functionalized graphite oxide

Zong, Enmin; Wei, Dan; Wan, Haiqin; Zheng, Shourong; Xu, Zhaoyi; Zhu, Dongqiang

doi:10.1016/j.cej.2013.01.088

Cited by 187 publications

(88 citation statements)

References 74 publications

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“…Several studies have investigated the effectiveness of various Me/MeO ENMs for the removal of phosphate from waters. These include Mn-doped Al-based bimetal oxides [465], ZrO 2 -coated graphite oxide [466], and Zr-modified MgFe layered double hydroxide carbonates in seawater [467].…”

Section: Metal and Metal Oxide Nanomaterialsmentioning

confidence: 99%

Engineered nanomaterials for water treatment and remediation: Costs, benefits, and applicability

Adeleye

Conway

Garner

et al. 2016

Chemical Engineering Journal

675

229

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Section: Metal and Metal Oxide Nanomaterialsmentioning

confidence: 99%

Engineered nanomaterials for water treatment and remediation: Costs, benefits, and applicability

Adeleye

Conway

Garner

et al. 2016

Chemical Engineering Journal

675

229

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“…Compared with chemical precipitation, adsorption does not produce large volumes of chemical sludge. Various types of phosphorus adsorbents made from zeolites [46], lanthanum and yttrium compounds [47,48], aluminum compounds [49, 50,51,52,53], zero-valent iron [54], amine-functionalize, Pr(OH)3 [55], magnesium amorphous calcium carbonate [56], zirconium compounds [57,58], and iron(III) oxide compounds [12,30,31,38,40,51,59,60,61] were studied.…”

mentioning

confidence: 99%

Phosphate removal and recovery from water using nanocomposite of immobilized magnetite nanoparticles on cationic polymer

Markeb

Alonso

Dorado

et al. 2016

Environmental Technology

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Highlights• Immobilization of magnetite nanoparticles on cationic polymer was synthesized.• Phosphate removal using magnetite based nanocomposites was tested.• Adsorption isotherms of phosphate at two pH; 5 and 7 were performed.• Different isotherms models were applied for experimental data fitting.• Regeneration and reusability of the magnetite based nanocomposites were carried out. Graphical Abstract 2 AbstractA novel nanocomposite based on magnetite nanoparticles (Fe3O4-NPs) immobilized on the surface of the cationic exchange polymer, C100, using a modification of the coprecipitation method was developed to obtain magnetic nanocomposites (NCs) for phosphate removal and recovery from water. High resolution TEM-EDS, SEM, XRD, and ICP-OES were used to characterize the NCs. The continuous adsorption process by the so-called breakthrough curves was used to determine the adsorption capacity of the Fe3O4 based NC. The adsorption 3 capacity conditions were studied under different conditions (pH, phosphate concentration and concentration of NPs). The optimum concentration of iron in the NC for phosphate removal was 23.59 mgFe/gNC. The sorption isotherms of this material were performed at pHs 5 and 7.Taking into account the real application of this novel material in real water, the experiments were performed at pH 7, achieving an adsorption capacity higher than 4.9 mgPO4-P/gNC.Moreover, Freundlich, Langmuir and a combination of them fit the experimental data and were used for interpreting the influence of pH on the sorption and the adsorption mechanism for this novel material. Furthermore, regeneration and reusability of the nanocomposite were tested obtaining 97.5 % recovery of phosphate for the first cycle and at least 7 cycles of adsorptiondesorption were carried out with more than 40% of recovery. Thus, this work described a novel magnetic nanoadsorbent with promoting properties for phosphate recovery in wastewater.

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“…The zeta potential of pristine graphite is around zero initially due to the presence of few ionic surface groups on the surface of pristine graphite, and then its potential value decreased with further increasing pH. The surface-oxidized graphite coated with oxygen-containing functional groups shows a high negative zeta potential compared to the graphite [39][40][41]. These data suggest NGO will have better dispersibility in aqueous media [39].…”

Section: Effect Of Phmentioning

confidence: 75%

Adsorption of p-nitrophenol from aqueous solutions using nanographite oxide

Zhang

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

131

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Adsorptive removal of phosphate ions from aqueous solution using zirconia-functionalized graphite oxide

Cited by 187 publications

References 74 publications

Engineered nanomaterials for water treatment and remediation: Costs, benefits, and applicability

Engineered nanomaterials for water treatment and remediation: Costs, benefits, and applicability

Phosphate removal and recovery from water using nanocomposite of immobilized magnetite nanoparticles on cationic polymer

Adsorption of p-nitrophenol from aqueous solutions using nanographite oxide

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