A new hybrid (polymer/inorganic) fibrous sorbent for arsenic removal from drinking water

Vatutsina, O.M.; Солдатов, В. С.; Sokolova, V. I.; Johann, Jurgen; Bissen, Monique; Weissenbacher, A.

doi:10.1016/j.reactfunctpolym.2006.10.009

Cited by 155 publications

(100 citation statements)

References 30 publications

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“…The iron loadings in Figs. 6-8 are similar to those reported in previous investigations of ferric hydroxide-loaded fibers, which ranged from 17 to 120 mg/g as Fe (Vatutsina et al, 2007;Lin and SenGupta, 2009;Wang et al, 2010).…”

Section: Figsupporting

confidence: 88%

“…The two most commonly used fibers for adsorbent preparation are polyacrylonitrile (PAN) and polypropylene (PP). Vatutsina et al (2007) tested a variety of PAN-and PPbased cation-and anion-exchange fibers loaded with ferric hydroxide for arsenic removal. They reported that fibers functionalized with both weak base anion and weak acid cation groups showed the highest levels of arsenic removal.…”

Section: Introductionmentioning

confidence: 99%

“…Previous research into the use of modified PAN fibers as arsenic adsorbents employed PAN copolymers and did not investigate how the preparation procedures, such as the degree of hydrazine cross-linking, the extent of base catalyzed hydrolysis, and the method of iron loading, affect arsenic removal (Vatutsina et al, 2007). This research builds on previous efforts modifying PAN fibers by investigating the effect of the preparation procedures on the arsenic adsorption capacity for homopolymer PAN fibers prepared using hydrazine, NaOH, and ferric chloride.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Characterization of Homopolymer Polyacrylonitrile-Based Fibrous Sorbents for Arsenic Removal

Chaudhary

Farrell

2014

Environmental Engineering Science

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This research investigated the modification of homopolymer polyacrylonitrile (PAN) fibers for use as an adsorbent for removing arsenic from drinking water. Fibers were chemically modified and cross-linked using combinations of hydrazine hydrate and sodium hydroxide (NaOH) before being loaded with ferric hydroxide using two different iron loading procedures. Effects of reagent concentrations and reaction times on degree of chemical modification and fiber properties were investigated using Fourier transform infrared spectroscopy and ion-exchange measurements. Arsenate adsorption was a function of both the iron loading and the properties of the underlying fiber. For fibers treated with only a single reagent, both Fe 3 + and arsenate adsorption could be understood in terms of ion-exchange properties of the fiber surfaces. However, for fibers treated with both hydrazine and NaOH, the ion-exchange properties of the surface could not explain the Fe 3 + and arsenate adsorption behavior. The best arsenate removal performance was obtained using the simplest pretreatment procedure of soaking in 10% NaOH at 95°C for 90 min, followed by precipitation coating of ferric hydroxide. This simple preparation procedure involves only two commonly available and inexpensive reagents and can be carried out without any specialized equipment. This suggests that adsorbents based on inexpensive homopolymer PAN fabric may be produced in developing areas of the world where commercial products may not be available.

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Section: Figsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preparation and Characterization of Homopolymer Polyacrylonitrile-Based Fibrous Sorbents for Arsenic Removal

Chaudhary

Farrell

2014

Environmental Engineering Science

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“…The composite ion exchangers have been used in environmental remediation because of their selectivity, specificity and wide range of applicability (Khan and Khan 2010;Vatutsina et al 2007). The attempt has been made by various researches to improve the chemical, mechanical, thermal properties and selectivity of composite ion exchangers for certain heavy metal ions (Islam and Patel 2008;Nabi and Naushad 2008;Bushra et al 2012;Nabi et al 2011;Khan and Paquiza 2011).…”

Section: Introductionmentioning

confidence: 99%

Pectin–cerium (IV) tungstate nanocomposite and its adsorptional activity for removal of methylene blue dye

Gupta

Pathania

Singh

2013

Int. J. Environ. Sci. Technol.

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Pectin-cerium (IV) tungstate composite (Pc/ CT) has been prepared by sol gel method at room temperature. The composite ion exchanger has been characterized using X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy and Fourier infrared spectroscopy. The ion exchange capacity, pH titrations, thermal stability and distribution coefficient of composite ion exchanger were investigated. The Na ? ions exchange capacity of the Pc/CT has been observed higher (1.4 meq g -1 ) as compared to its inorganic counterpart (0.8 meq g -1 ). Pc/CT composite ion exchanger was thermally stable and retained about 60 % of its ion exchange capacity up to 400°C. The distribution study has inferred more selective the Pc/CT for Zn 2? as compared to other metal ions. The adsorption efficiency of Pc/CT was tested for methylene blue removal dye from aqueous phase. The removal of dye followed pseudo-second-order kinetics.

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“…Hence, in order to prevail over these drawbacks, composite ion exchangers Inamuddin 2010;Khan et al 2014) were synthesized by introducing inorganic materials into the matrix of organic polymer polyaniline (PANI). These composite materials have been widely studied and showed improved qualities with respect to those of pure inorganic and organic counterparts, in terms of better selectivity, good mechanical and chemical resistance, more regular granular form, lower solubility in water, and better exchange of kinetics (Vatutsina et al 2007;Hafez et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Preparation of polyaniline based nanocomposite material and their environmental applications

Bushra

Shahadat

Khan

et al. 2014

Int. J. Environ. Sci. Technol.

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This present paper reports the synthesis and environmental applications of conducting polyanilineSn(IV)tungstomolybdate nanocomposite. The material was synthesized via a very simple chemical route and characterized by using various instrumental techniques. Physicochemical properties, pH titrations, and elution behavior were studied to exploit the ion-exchange capability of nanocomposite. Electrical conducting studies were performed by using 4-in-line-probe (Direct Current) electrical conductivity measuring instrument. The conductivity of the material was found to be in the range of semiconductor's. Distribution coefficient values were measured in demineralized water and varying concentration of dimethyl sulfoxide, and on the basis of partition coefficient values, the material was found to be selective for Pb 2? ions. This nanocomposite material has been fruitfully applied for the treatment of heavy metals from synthetic mixture and industrial waste water samples. The limit of detection and the limit of quantification for Pb 2? ion were found to be 0.97 and 3.24 lg L -1 , respectively. The material was also tested for antimicrobial activity, and it was found that besides its use as an ion-exchange material, polyaniline-Sn(IV)tungstomolybdate is successfully used as an antimicrobial agent and as well as semiconductor.

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A new hybrid (polymer/inorganic) fibrous sorbent for arsenic removal from drinking water

Cited by 155 publications

References 30 publications

Preparation and Characterization of Homopolymer Polyacrylonitrile-Based Fibrous Sorbents for Arsenic Removal

Preparation and Characterization of Homopolymer Polyacrylonitrile-Based Fibrous Sorbents for Arsenic Removal

Pectin–cerium (IV) tungstate nanocomposite and its adsorptional activity for removal of methylene blue dye

Preparation of polyaniline based nanocomposite material and their environmental applications

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