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Issue 54, 2015
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A highly efficient and magnetically retrievable functionalized nano-adsorbent for ultrasonication assisted rapid and selective extraction of Pd2+ ions from water samples

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Abstract

A novel magnetically retrievable core–shell structured nano-adsorbent (DAPTS@NH2@SiO2@Fe3O4) was fabricated for selective extraction of Pd2+ ions from water samples. The nano-adsorbent was well characterized by XRD, TEM, FE-SEM, FTIR, EDS, ED-XRF and VSM. The influence of various factors on adsorption and desorption such as the amount of nano-adsorbent, pH variation, adsorption time, eluting agent type and its volume were investigated. The maximum adsorption capacity was found to be 64.8 (mg g−1) which perfectly fitted with a Langmuir isotherm model of adsorption. Also, the adsorption time of 5 minutes suggested faster adsorption kinetics which was in agreement with a pseudo second order kinetic model. Besides, the presence of a rich magnetic core facilitated the ease of separation of the nanoadsorbent. The overall results suggested the potential use of the nano-adsorbent for the faster, selective and quantitative extraction of Pd2+ ions from aqueous and catalytic converter samples.

Graphical abstract: A highly efficient and magnetically retrievable functionalized nano-adsorbent for ultrasonication assisted rapid and selective extraction of Pd2+ ions from water samples

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Publication details

The article was received on 08 Apr 2015, accepted on 07 May 2015 and first published on 08 May 2015


Article type: Paper
DOI: 10.1039/C5RA06265A
Citation: RSC Adv., 2015,5, 43371-43380
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    A highly efficient and magnetically retrievable functionalized nano-adsorbent for ultrasonication assisted rapid and selective extraction of Pd2+ ions from water samples

    R. K. Sharma, H. Kumar and A. Kumar, RSC Adv., 2015, 5, 43371
    DOI: 10.1039/C5RA06265A

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