The effect of polystyrene as a porogen on the fluoride ion adsorption of Zr(IV) surface-immobilized resin

Samatya, Saba; Mizuki, Hidenobu; Ito, Yudai; Kawakita, Hidetaka; Uezu, Kazuya

doi:10.1016/j.reactfunctpolym.2009.10.004

Cited by 49 publications

(12 citation statements)

References 25 publications

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“…Because of the toxicity of fluoride and danger of overdosing, fluoridation of drinking water has been prohibited in many countries. Fluoride containing waste water is generated in various industries including mines, semiconductor factories, pharmaceutical companies, beryllium extraction plants, fertilizer manufacturing and aluminum smelters [4][5][6]. Hence, contamination of ground water by fluoride is unavoidable.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive removal of fluoride from aqueous solution using orange waste loaded with multi-valent metal ions

Paudyal¹,

Pangeni²,

Inoue³

et al. 2011

Journal of Hazardous Materials

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107

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Section: Introductionmentioning

confidence: 99%

Adsorptive removal of fluoride from aqueous solution using orange waste loaded with multi-valent metal ions

Paudyal¹,

Pangeni²,

Inoue³

et al. 2011

Journal of Hazardous Materials

Self Cite

107

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“…(P) represented the -COPO 3 H -group The tentative mechanism was depicted in Scheme.1. Stable hybrid material with a nanoporous surface were obtained in a wide range of phytic acid to Zr(OCl) 4 . A molar ratio of P/Zr between 3:1 and 6:1 gave the best results.…”

Section: Infrared Characteristic Of Hybrid Zrxip6mentioning

confidence: 99%

“…These methods are based on the principles of ion exchange [2],chemical precipitation [3], adsorption [4], electrodialysis and reverse osmosis [5]. Generally, selective adsorption is a more attractive method.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a Hybrid Zirconium Phytate and Its Application for the Removal of Fluorine in Metal-Precoating Effluent

Cheng

Wang

et al. 2016

MATEC Web Conf.

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Abrstract A hybrid zirconium phytate (Zr x IP 6 ) with porous surface was synthesized via the direct precipitation method. The as-prepared Zr x IP 6 was characterized by SEM, EDS, FT-IR. The sample obtained from P/Zr=3:1(mol/mol) indicated that a hybrid material might be formed through coordination of the zirconium ions with the -COPO 3 groups in phytic acid molecules. An attempt to employ the hybrid Zr x IP 6 as a sorbent in the removal of fluoride ions in metal-precoating wastewater was performed. The adsorption capacity q e and the residual F -ions concentration C e using the Zr x IP 6 (P/Zr=3:1) as an adsorbent, were 1.21 mg.g -1 and 1.47 mg.L -1 , respectively.

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“…[2,3]. Fluoride containing waste water is generated in various industries including mines, semiconductor factories, pharmaceutical companies, beryllium extraction plants, fertilizer manufacturing and aluminum smelters [4][5][6]. Hence, contamination of ground water by fluoride is unavoidable.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive Removal of Trace Concentration of Fluoride Using Orange Waste Treated Using Concentrated Sulfuric Acid

Paudyal¹

2017

IJMSA

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Novel adsorption gel was prepared from orange juice residue by using boiling concentrated sulfuric acid to create a condensation cross-linking reaction. It was then loaded with Zr(IV) ion to create adsorption sites for fluoride ions. This prepared gel was characterized by IR, EDX, XRD, SEM and chemical analysis. Fluoride adsorption was strongly pH dependent and maximum adsorption occurred at pH 3-4. The maximum adsorption capacity was drastically improved by loading Zr(IV) from 0.21 mmol/g up to 0.71mmol/g at 303 K. The thermodynamic parameters evaluated from adsorption isotherms at varying temperature suggested that adsorption of fluoride onto the present adsorbent is spontaneous and endothermic in nature. The adsorbed fluoride was successfully desorbed using dilute alkaline solution. Trace concentrations of fluoride contained in the actual waste plating solution was completely removed by adding small amounts of this adsorbent.

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The effect of polystyrene as a porogen on the fluoride ion adsorption of Zr(IV) surface-immobilized resin

Cited by 49 publications

References 25 publications

Adsorptive removal of fluoride from aqueous solution using orange waste loaded with multi-valent metal ions

Adsorptive removal of fluoride from aqueous solution using orange waste loaded with multi-valent metal ions

Preparation of a Hybrid Zirconium Phytate and Its Application for the Removal of Fluorine in Metal-Precoating Effluent

Adsorptive Removal of Trace Concentration of Fluoride Using Orange Waste Treated Using Concentrated Sulfuric Acid

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