Uptake and desorption of copper ion using functionalized polymer coated silica gel in aqueous environment

Kumar, Gaurav; Kumar, Parveen; Chakraborty, Saswati; Ray, Manabendra

doi:10.1016/j.seppur.2007.03.003

Cited by 100 publications

(66 citation statements)

References 32 publications

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“…Kumar et al [9] used aniline formaldehyde condensate (AFC) coated on silica gel as an adsorbent to remove copper (Cu 2+ ) from aqueous solution under conditions of different initial Cu 2+ concentration, adsorbent loading, pH and adsorption time. The main mechanism of copper removal was the coordination bond formation between the amine group and Cu 2+ ion.…”

Section: Introductionmentioning

confidence: 99%

Adsorption and Desorption of Na+ and NO3− Ions on Thermosensitive NIPAM-co-DMAAPS Gel in Aqueous Solution

et al. 2017

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Adsorbent gel with the ability to absorb and to desorb Na + and NO3 − ions simultaneously with temperature swing was synthesized by free radical copolymerization reaction of N-isopropylacrylamide (NIPAM) and N,Ndimethyl(acrylamidopropyl) ABSTRAK Gel adsorben yang memiliki kemampuan mengadsorpsi dan mendesorpsi ion secara simultan dengan perubahan suhu (temperature swing) dihasilkan melalui reaksi kopolimerisasi radikal bebas antara Nisopropylacrylamide (NIPAM), dan N,N-dimethyl(acrylamidopropyl)ammonium propane sulfonate (DMAAPS

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Section: Introductionmentioning

confidence: 99%

Adsorption and Desorption of Na+ and NO3− Ions on Thermosensitive NIPAM-co-DMAAPS Gel in Aqueous Solution

et al. 2017

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“…In recent years, the modification of adsorbents with organic functional groups has received great attention due to its high adsorption capacity, high selectivity, and easy regeneration (Chakraborty and Tare, 2006;Kumar et al, 2007;Xue et al, 2008). The functional groups on the surfaces of the adsorbents play important roles in the adsorption performance.…”

Section: Introductionmentioning

confidence: 99%

Preparation of organically functionalized silica gel as adsorbent for copper ion adsorption

Wang

Kang

Liu

et al. 2009

Journal of Environmental Sciences

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A novel adsorbent (AMPS-silica) was synthesized by bounding AMPS (2-acrylamido-2-methylpropanesulfonic acid) onto silica surface, which functioned with γ-methacryloxypropyltrimethoxysilane reagent. The adsorbent was characterized by nitrogen adsorption/desorption measurement, thermogravimetric analysis (TGA) and potentiometric titration analysis. The TGA result indicated that the surface modification reactions introduced some organic functional groups onto the surface of silica. The surface area of AMPSsilica was 389.7 m 2 /g. The adsorbent was examined for copper ion removal in series of batch adsorption experiments. Results showed that the adsorption of Cu 2+ onto AMPS-silica was pH dependent, and the adsorption capacity increased with increasing pH from 2 to 6. The adsorption kinetics showed that Cu 2+ adsorption was fast and the data fitted well with a pseudo second-order kinetic model. The adsorption of Cu 2+ onto AMPS-silica obeyed both Freundlich and Langmuir isotherms, with r 2 = 0.993 and r 2 = 0.984, respectively. The maximum Cu 2+ adsorption capacity was 19.9 mg/g. The involved mechanism might be the adsorption through metal binding with organic functional groups such as carboxyl, amino and sulfonic groups. Cu 2+ loaded on AMPS-silica could be desorbed in HNO 3 solution, and the adsorption properties remain stable after three adsorption-desorption cycles.

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“…Some of the important ones include silica gel, activated alumina, zeolites and activated carbon, etc. Additionally, more research is needed to find the practical utility of low-cost adsorbents on commercial scale [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of a series of chelating resins containing amino/imino-carboxyl groups and their adsorption behavior for lead in aqueous phase

Yang

Jin

et al. 2011

Chemical Engineering Journal

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Uptake and desorption of copper ion using functionalized polymer coated silica gel in aqueous environment

Cited by 100 publications

References 32 publications

Adsorption and Desorption of Na<sup>+</sup> and NO<sub>3</sub><sup>−</sup> Ions on Thermosensitive NIPAM-<i>co</i>-DMAAPS Gel in Aqueous Solution

Adsorption and Desorption of Na<sup>+</sup> and NO<sub>3</sub><sup>−</sup> Ions on Thermosensitive NIPAM-<i>co</i>-DMAAPS Gel in Aqueous Solution

Preparation of organically functionalized silica gel as adsorbent for copper ion adsorption

Synthesis and characterization of a series of chelating resins containing amino/imino-carboxyl groups and their adsorption behavior for lead in aqueous phase

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