scispace - formally typeset
Search or ask a question
Journal ArticleDOI

Synthesis, Characterization, Evaluation of Potassium Tertatitanium Whisker Surface Ni(II) Ion-Imprinted Polymers and Selective Adsorption of Nickel

01 Jun 2010-Advanced Materials Research (Trans Tech Publications)-pp 644-650
TL;DR: In this paper, surface ion-imprinted polymers (Ni(II)-IIPs) were synthesized by the method of surface ionimprinting in combination with sol-gel process, and prepared by the Ni(II) as template ion, Chitosan(CTS) as functional monomer, γ-Glycidoxypropyl trimethoxysilane (KH560) as linking agent, potassium tertatitanium whisker as carrier.
Abstract: Ni(II) ion-imprinted polymers(Ni(II)-IIPs) was synthesis by the method of surface ion-imprinting in combination with sol-gel process, and prepared by the Ni(II) as template ion, Chitosan(CTS) as functional monomer, γ-Glycidoxypropyl trimethoxysilane (KH560) as linking agent, potassium tertatitanium whisker as carrier. After removing Ni(II) ion from the polymer, Ni(II)-IIPs capable of selectively rebinding Ni(II) ion were obtained. The prepared material was characterized by using the infrared spectra (IR) and scanning electron microscopy (SEM). A batch of adsorption experiments were performed to evaluate its adsorption behavior of Ni(II) using inductively coupled plasma atomic emission spectrometry (ICP-AES). The effect of solution pH, sorbent amount on the extraction of Ni(II) from aqueous solutions were studied. The maximum adsorption capacity of Ni(II) on polymer beads was about 33.1 mg•g−1. The Ni(II)-IIPs have a greater affinity for Ni(II) with respect to Cd(II), Co(II), Cu(II), Hg(II), Mg(II), Mn(II), Zn(II) and Pb(II) ions. Ni(II)-IIPs enabled the selective extraction of Ni(II) from a complex matrix. The prepared functional polymer was shown to be promising for selective pre-separation and enrichment of trace Ni(II) in environmental samples.
Citations
More filters
Journal ArticleDOI
TL;DR: A survey of the literature covering the development of molecular imprinting science and technology over the years 2004–2011 and efforts to apply these polymeric materials to a range of application areas is presented.
Abstract: Herein, we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004-2011. In total, 3779 references to the original papers, rev ...

413 citations


Cites background from "Synthesis, Characterization, Evalua..."

  • ...SPE systems for analysis of ionic and inorganic materials have also received considerable attention.(2332-2535) As the demand for more sensitive analytical techniques continues to grow, so too should the need for robust technologies such as MISPE....

    [...]

Journal ArticleDOI
TL;DR: In this paper, a novel imprinted biocomposite and its non-imprinted form were developed by melaminating and crosslinking of chitosan coated onto a bio-based activated carbon and characterized using FTIR, BET, FESEM-EDS and XRD.

2 citations

References
More filters
Journal ArticleDOI
TL;DR: In this article, the authors provided the scattered available information on various aspects of utilization of the agricultural waste materials for heavy metal removal, which can be exploited for high efficiency and multiple reuse to enhance their applicability at industrial scale.

1,322 citations

01 Jan 2008
TL;DR: Biosorption is emerging as a potential alternative to the existing conventional technologies for the removal and/or recovery of metal ions from aqueous solutions for heavy metal remediation.
Abstract: Heavy metal remediation of aqueous streams is of special concern due to recalcitrant and persistency of heavy metals in environment. Conventional treatment technologies for the removal of these toxic heavy metals are not economical and further generate huge quantity of toxic chemical sludge. Biosorption is emerging as a potential alternative to the existing conventional technologies for the removal and/or recovery of metal ions from aqueous solutions. The major advantages of biosorption over conventional treatment methods include: low cost, high efficiency, minimization of chemical or biological sludge, regeneration of biosorbents and possibility of metal recovery. Cellulosic agricultural waste materials are an abundant source for significant metal biosorption. The functional groups present in agricultural waste biomass viz. acetamido, alcoholic, carbonyl, phenolic, amido, amino, sulphydryl groups etc. have affinity for heavy metal ions to form metal complexes or chelates. The mechanism of biosorption process includes chemisorption, complexation, adsorption on surface, diffusion through pores and ion exchange etc. The purpose of this review article is to provide the scattered available information on various aspects of utilization of the agricultural waste materials for heavy metal removal. Agricultural waste material being highly efficient, low cost and renewable source of biomass can be exploited for heavy metal remediation. Further these biosorbents can be modified for better efficiency and multiple reuses to enhance their applicability at industrial scale.

1,245 citations

Journal ArticleDOI
Chiyang He1, Yuanyuan Long1, Junlan Pan, Kean Li1, Feng Liu1 
TL;DR: As one of the most effective sorbents, MIPs have been successfully applied to the pretreatment of analytes in foods, drugs, and biological and environmental samples in the past five years.

358 citations

Journal ArticleDOI
TL;DR: The IIPs find interesting applications in solid phase extraction, sensors and membrane separations of inorganics, and has been briefly reviewed here along with some rough guidelines and concepts for further development.

344 citations

Journal ArticleDOI
TL;DR: The prepared ion-imprinted functionalized sorbent was shown to be promising for on-line, solid-phase extraction coupled with flame atomic absorption spectrometry for the determination of trace cadmium in environmental and biological samples.
Abstract: A new ion-imprinted thiol-functionalized silica gel sorbent was synthesized by a surface imprinting technique in combination with a sol−gel process for selective on-line, solid-phase extraction of Cd(II). The Cd(II)-imprinted thiol-functionalized silica sorbent was characterized by FT-IR, the static adsorption−desorption experiment, and the dynamic adsorption−desorption method. The maximum static adsorption capacity of the ion-imprinted functionalized sorbent was 284 μmol g-1. The largest selectivity coefficient for Cd(II) in the presence of Pb(II) was over 220. The static uptake capacity and selectivity coefficient of the ion-imprinted functionalized sorbent are higher than those of the nonimprinted sorbent. The breakthrough capacity and dynamic capacity of the imprinted functionalized silica gel sorbent for 4 mg L-1 of Cd(II) at 5.2 mL min-1 of sample flow rate were 11.7 and 64.3 μmol g-1, respectively. No remarkable effect of sample flow rate on the dynamic capacity was observed as the sample flow rate...

308 citations