2012
DOI: 10.1007/s11270-012-1186-5
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Adsorption of Phosphate from Aqueous Solution Using an Iron–Zirconium Binary Oxide Sorbent

Abstract: In this study, an iron-zirconium binary oxide with a molar ratio of 4:1 was synthesized by a simple coprecipitation process for removal of phosphate from water. The effects of contact time, initial concentration of phosphate solution, temperature, pH of solution, and ionic strength on the efficiency of phosphate removal were investigated. The adsorption data fitted well to the Langmuir model with the maximum P adsorption capacity estimated of 24.9 mg P/g at pH 8.5 and 33.4 mg P/g at pH 5.5. The phosphate adsor… Show more

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Cited by 119 publications
(30 citation statements)
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“…Though the pseudo-second-order model is well describing the reaction kinetics, it is limited in accuracy by considering sorption as a single, one-step binding process (Ren et al, 2012). However, the intraparticle diffusion model may provide a more comprehensive view of adsorption as a series of distinct steps (D'Arcy et al, 2011).…”
Section: Sorption Kineticsmentioning
confidence: 99%
See 1 more Smart Citation
“…Though the pseudo-second-order model is well describing the reaction kinetics, it is limited in accuracy by considering sorption as a single, one-step binding process (Ren et al, 2012). However, the intraparticle diffusion model may provide a more comprehensive view of adsorption as a series of distinct steps (D'Arcy et al, 2011).…”
Section: Sorption Kineticsmentioning
confidence: 99%
“…The second linear section was a moderate sorption process, governing by the intraparticle diffusion in the pore structure. The third linear section was a very slow sorption stage, relating to the steric hindrance from the adsorbed molecules (Ren et al, 2012).…”
Section: Sorption Kineticsmentioning
confidence: 99%
“…Zirconium was found to be an excellent loading metal in many studies performed by Biswas (2008); Mallampati and Valiyaveettil (2013); Nguyen et al, 2014b;Ohura et al (2011), etc. However, the high-cost remains a challenge, limiting the use of zirconium compounds for this purpose (Nguyen et al, 2014c;Ren et al, 2012).…”
Section: Introductionmentioning
confidence: 99%
“…Cobalt hydroxide itself is well known as an 38 additive of alkaline secondary batteries, and cobalt oxide nano- 39 tubes, nanorods, and nanoparticles can be used as the anode 40 materials in Li-ion batteries [21,26]. Adverse effects, toxicity, 41 environmental exposure, and risk assessment in cobalt and 42 inorganic cobalt compounds had been reported by World Health 43 Organization [27]. These data indicate that cobalt hydroxide and 44 cobalt oxide would be useful as an adsorbent for water purification.…”
mentioning
confidence: 99%