{"id":19384,"date":"2015-03-11T15:25:03","date_gmt":"2015-03-11T13:25:03","guid":{"rendered":"https:\/\/zeolife.gr\/removal-of-pbii-from-aqueous-solutions-by-zeolites-porcelanite-and-sands-correlation-of-morphology-and-chemical-composition-with-batch-removal-efficiency\/"},"modified":"2015-03-11T15:25:03","modified_gmt":"2015-03-11T13:25:03","slug":"removal-of-pbii-from-aqueous-solutions-by-zeolites-porcelanite-and-sands-correlation-of-morphology-and-chemical-composition-with-batch-removal-efficiency","status":"publish","type":"post","link":"https:\/\/zeolife.gr\/en\/removal-of-pbii-from-aqueous-solutions-by-zeolites-porcelanite-and-sands-correlation-of-morphology-and-chemical-composition-with-batch-removal-efficiency\/","title":{"rendered":"Removal of Pb(II) from Aqueous Solutions by Zeolites, Porcelanite and Sands: Correlation of Morphology and Chemical Composition with Batch Removal Efficiency"},"content":{"rendered":"
\"Removal<\/a>
Removal of Pb(II) from Aqueous Solutions by Zeolites, Porcelanite and Sands: Correlation of Morphology and Chemical Composition to Batch Removal Efficiency<\/figcaption><\/figure>\n

Author(s)<\/h2>\n

Fawwaz Jumean1*,\u00a0Lucia Pappalardo1,\u00a0Hani Khoury2<\/p>\n

Affiliation(s)<\/h2>\n

1Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, Sharjah, United Arab Emirates.
\n2Department of Geology, The University of Jordan, Amman, Jordan.<\/p>\n

ABSTRACT<\/h2>\n

Chemical compositions of natural zeolites, porcelanite (opal-CT) and local sands were determined by X-ray fluorescence (XRF) and correlated with their Pb(II) removal efficiencies. Zeolites and porcelanite were from the Mikawer, Aritain and Hannon areas in Jordan. Sands (white, red and yellow) were from the United Arab Emirates (UAE). The effect of Pb(II) concentration and zeolite dosage on removal efficiency was investigated at 25.0\u00b0C using the batch equilibrium method. Commercial kaolinite, silica and alumina were also studied for comparison. Removal efficiencies, in mg Pb(II)\/g adsorbent, were: 76.9, 52.7 and 42.1 for Hannon, Mikawer and Aritain zeolites, respectively; 58.2 for porcelanite; 29.7, 11.0 and 8.5 for yellow, red and white sand, respectively; 7.2, 3.3 and 1.3 for kaolinite, silica and alumina, respectively. XRF data indicate that adsorbents with intermediate molar ratios of Si\/Al, in the range 2.70 – 2.93, are most efficient in Pb(II) removal. Scanning electron microscope (SEM) images of adsorbents suggest that morphology, in addition to chemical composition, plays a key role. In particular, a combination of factors, including shapes and sizes of crystals, channels in zeolites and pores in porcelanite, appear to favor removal of Pb(II).<\/p>\n

KEYWORDS<\/h2>\n

Zeolites,\u00a0Sands,\u00a0XRF,\u00a0SEM,\u00a0Pb(II) Removal<\/p>\n

Cite this paper<\/h2>\n

Jumean, F. , Pappalardo, L. and Khoury, H. (2015) Removal of Pb(II) from Aqueous Solutions by Zeolites, Porcelanite and Sands: Correlation of Morphology and Chemical Composition to Batch Removal Efficiency.\u00a0American Journal of Analytical Chemistry,\u00a06, 297-304. doi:\u00a010.4236\/ajac.2015.64028.<\/p>\n

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