Synthesis of MWCNT/MnO2 and their application for simultaneous oxidation of arsenite and sorption of arsenate
作者： Tawfik A. Saleh , Shilpi Agarwal , Vinod K. Gupta
DOI: 10.1016/J.APCATB.2011.05.003
关键词:
摘要: It is well known that arsenite [As(III)] less effectively removed than arsenate [As(V)] by most treatment technologies. Thus, pre-oxidation of As(III) to As(V) required prior adsorption. Here, the oxidation properties manganese oxides with adsorption features multiwall carbon nanotubes (MWCNTs) have been combined in a composite MWCNT/MnO2. The was characterized Fourier transform infrared absorption spectroscopy (FTIR), field emission scanning electron microscope (FESEM), and energy dispersive X-ray (EDX) diffraction (XRD). In batch culture experiments, MWCNTs MWCNT/MnO2 were examined for As(V). results reveal MnO2 plays key role enhancing removal not as effective MWCNTs. retention slightly pH dependent. reported can be regenerated it confirmed SEM EDX analysis. study could considered model preparation investigation multifunctional material used wastewater arsenic.
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sci-hub.se 参考文章(49)
O. S. Thirunavukkarasu, T. Viraraghavan, K. S. Subramanian, Arsenic Removal from Drinking Water using Iron Oxide-Coated Sand Water Air and Soil Pollution. ,vol. 142, pp. 95- 111 ,(2003) , 10.1023/A:1022073721853
Peter Politzer, Jane S. Murray, Monica C. Concha, Chapter 3 Charge delocalization in (n, 0) model carbon nanotubes Theoretical and Computational Chemistry. ,vol. 17, pp. 82- 95 ,(2007) , 10.1016/S1380-7323(07)80021-5
P. Hernández-Fernández, M. Montiel, P. Ocón, J.L. Gómez de la Fuente, S. García-Rodríguez, S. Rojas, J.L.G. Fierro, Functionalization of multi-walled carbon nanotubes and application as supports for electrocatalysts in proton-exchange membrane fuel cell Applied Catalysis B-environmental. ,vol. 99, pp. 343- 352 ,(2010) , 10.1016/J.APCATB.2010.07.005
Imran Ali, VK Gupta, None, Advances in water treatment by adsorption technology Nature Protocols. ,vol. 1, pp. 2661- 2667 ,(2006) , 10.1038/NPROT.2006.370
Hyunjoo Lee, Wonyong Choi, Photocatalytic Oxidation of Arsenite in TiO2 Suspension: Kinetics and Mechanisms Environmental Science & Technology. ,vol. 36, pp. 3872- 3878 ,(2002) , 10.1021/ES0158197
Vinod K. Gupta, Imran Ali, Removal of endosulfan and methoxychlor from water on carbon slurry. Environmental Science & Technology. ,vol. 42, pp. 766- 770 ,(2008) , 10.1021/ES7025032
Ajay K. Jain, Vinod K. Gupta, Lok P. Singh, Neutral carrier and organic resin based membranes as sensors for uranyl ions Analytical Proceedings including Analytical Communications. ,vol. 32, pp. 263- 266 ,(1995) , 10.1039/AI9953200263
VK Gupta, Alok Mittal, Vibha Gajbe, Jyoti Mittal, None, Removal and Recovery of the Hazardous Azo Dye Acid Orange 7 through Adsorption over Waste Materials: Bottom Ash and De-Oiled Soya Industrial & Engineering Chemistry Research. ,vol. 45, pp. 1446- 1453 ,(2006) , 10.1021/IE051111F
Evan Diamadopoulos, Socrates Ioannidis, George P. Sakellaropoulos, As(V) removal from aqueous solutions by fly ash Water Research. ,vol. 27, pp. 1773- 1777 ,(1993) , 10.1016/0043-1354(93)90116-Y
Ana Belén González-Guerrero, Ernest Mendoza, Eva Pellicer, Francesc Alsina, César Fernández-Sánchez, Laura M. Lechuga, Discriminating the carboxylic groups from the total acidic sites in oxidized multi-wall carbon nanotubes by means of acid–base titration Chemical Physics Letters. ,vol. 462, pp. 256- 259 ,(2008) , 10.1016/J.CPLETT.2008.07.071