Synthesis of mesoporous cerium–zirconium binary oxide nanoadsorbents by a solvothermal process and their effective adsorption of phosphate from water

Su, Yu; Yang, Weiyi; Sun, Wuzhu; Li, Qi; Shang, Jian Ku

doi:10.1016/j.cej.2015.01.070

Cited by 215 publications

(63 citation statements)

References 64 publications

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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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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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“…Phosphorus is a finite resource on Earth and thus may be 10 affordable for only a few more decades [1]. The diminishing supply 11 of phosphorus necessitates the consideration of its recovery from 12 wastewater streams [2].…”

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confidence: 99%

“…Among 21 various available technologies for phosphate decontamination, the 22 adsorption method is relatively simple, economical, and highly 23 efficient [5,6]. Various types of materials have been used as 24 adsorbents, such as Fe-Mn binary oxide [7], a metal oxide 25 adsorbent derived from manganese ore tailings [8], nanostruc- 26 tured Fe(III)-Cu(II) binary oxides [9], mesoporous Cr-Zr binary 27 oxide nanoadsorbent [10], magnetic Fe-Zr binary oxide [11], 28 aluminum compounds [12][13][14], and hydrous zirconium oxide- 29 based nanocomposites [4]. Composite metal oxides may show 30 physicochemical properties different from those of their single- 31 component oxide counterparts.…”

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confidence: 99%

Adsorption of phosphate ion in aqueous solutions by calcined cobalt hydroxide at different temperatures

Ogata

Imai

Toda³

et al. 2015

Journal of Environmental Chemical Engineering

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“…High Ethanol could be used to regenerate the used adsorbent. According to Su, Yang et al (2015), maximum phosphate adsorption capacity on cerium-zirconium binary oxide (Ce0.8Zr0.2O2) nanoparticles could reach 112.23 mg/g. The inner-sphere complex was formed between phosphate and surface -OH groups.…”

Section: Flotationmentioning

confidence: 99%

Physico‐Chemical Processes

Hua

Xiong

Zhu

et al. 2016

Water Environment Research

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Synthesis of mesoporous cerium–zirconium binary oxide nanoadsorbents by a solvothermal process and their effective adsorption of phosphate from water

Cited by 215 publications

References 64 publications

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

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

Adsorption of phosphate ion in aqueous solutions by calcined cobalt hydroxide at different temperatures

Physico‐Chemical Processes

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