2016
DOI: 10.1016/j.cej.2016.02.118
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Preparation of regenerable granular carbon nanotubes by a simple heating-filtration method for efficient removal of typical pharmaceuticals

Abstract: A simple and convenient method was used to prepare novel granular carbon nanotubes (CNTs) for enhanced adsorption of pharmaceuticals. By heating CNTs powder at 450 in air, followed by filtration, the obtained granular adsorbent exhibited high surface area and pore volume since the heating process produced some oxygen-containing functional groups on CNT surface, making CNTs more dispersible in the formation of granular cake. The porous granular CNTs not only had more available surfaces for adsorption but also w… Show more

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Cited by 48 publications
(11 citation statements)
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“…Regenerable granular carbon nanotubes 87.2 mg g -1 (369.5 µmol g -1 ) [11] Amberlite XAD-7 acrylic-ester-resin 97 [38] Molecularly imprinted polymer 86 [39] single-walled carbon nanotubes (SWCNTs) 130 [15] Mesoporous silica SBA-15 0.16 [40] Agricultural waste rice straw 40 [41] AC 274 Present study …”
Section: Resultsmentioning
confidence: 99%
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“…Regenerable granular carbon nanotubes 87.2 mg g -1 (369.5 µmol g -1 ) [11] Amberlite XAD-7 acrylic-ester-resin 97 [38] Molecularly imprinted polymer 86 [39] single-walled carbon nanotubes (SWCNTs) 130 [15] Mesoporous silica SBA-15 0.16 [40] Agricultural waste rice straw 40 [41] AC 274 Present study …”
Section: Resultsmentioning
confidence: 99%
“…In recent years, various treatment technologies have been presented for removal of micropollutants from effluents of WWTPs, including, coagulation-flocculation [6,7], chemical oxidation [8,9] and adsorption [10][11][12].…”
Section: Introductionmentioning
confidence: 99%
“…3. This was mainly caused by the disadvantageous electrostatic conditions between TC (HTC − and/or TC 2− ) and ZBAC surfaces [15].…”
Section: Effect Of Phmentioning
confidence: 99%
“…The pH of the TCH in aqueous solution was 3.5, thus TCH existed in the cation form and acted as a π-electron-acceptor in the sorption process. In addition, some oxygen-containing groups on the ZBAC surface served as electron-donating groups [15]. Considering four aromatic rings in TC, the cation-π bonding might be one of the adsorption mechanisms [3].…”
Section: Xps Analysismentioning
confidence: 99%
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