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La Activated High Surface Area Titania Float for Adsorption of Pb (II) From Aqueous Media

Abstract

Current world faces alarming challenges of heavy metal contamination, which are hazardous to human and environment because of their toxicity even in trace concentration. Lead is one of the harmful heavy metal contaminant and has poisonous effect on human health. The present research investigation describes the adsorption of toxic Pb (II) on an immobilized adsorbent with a highly smaller crystallite size along with enhanced surface area and pore volume of La doped TiO2 synthesized from a simple co-precipitation method. Induction of dopant La3+ was confirmed by XPS with a smaller particle size of 25 nm as compared to TiO2 of 80 nm. The La doped TiO2 shows an enhanced surface area of 97.246 m2/g compared to TiO2 of 17.2 m2/g due to the introduction of oxygen vacancies leading to increased surface roughness and thus shows significant improvement in adsorption of Pb (II) in comparison to TiO2 at basic pH due to the negative charge on La doped TiO2. Suitable optimized pH was examined and Pb (II) adsorption study was measured using atomic absorption spectroscopy.

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Publication details

The article was received on 05 Sep 2017, accepted on 23 Nov 2017 and first published on 24 Nov 2017


Article type: Paper
DOI: 10.1039/C7NJ03358C
Citation: New J. Chem., 2017, Accepted Manuscript
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    La Activated High Surface Area Titania Float for Adsorption of Pb (II) From Aqueous Media

    S. Rani R, P. A, G. R. Balakrishna and J. M S, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ03358C

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