dc.contributor.author | Wang, Shaobin | |
dc.contributor.author | Ng, Choon Wei | |
dc.contributor.author | Wang, Wentai | |
dc.contributor.author | Li, Qin | |
dc.contributor.author | Hao, Zhengping | |
dc.date.accessioned | 2017-05-03T16:08:37Z | |
dc.date.available | 2017-05-03T16:08:37Z | |
dc.date.issued | 2012 | |
dc.date.modified | 2013-06-13T04:12:21Z | |
dc.identifier.issn | 1385-8947 | |
dc.identifier.doi | 10.1016/j.cej.2012.05.008 | |
dc.identifier.uri | http://hdl.handle.net/10072/51501 | |
dc.description.abstract | A multiwalled carbon nanotube (MWCNT) was used as an adsorbent for removal of a cationic dye (methylene blue, MB) and acid dye (acid red 183, AR183) from aqueous solution in single and binary dye systems. Characterization of the MWCNT and MWCNT-dye systems were performed using several techniques such as Fourier transform infrared spectroscopy (FTIR), thermogravimetric-differential thermal analysis (TG-DTA), zeta potential and elemental analysis. Adsorption tests showed that the MWCNT presented higher adsorption of MB than AR183 in single and binary dye systems, revealing that p-p stacking is the main driving force responsible for the dye-MWCNT interaction. In single dye systems, the MWCNT presented the maximum adsorption capacities of MB and AR183 at 59.7 and 45.2 mg/g, respectively. In a binary dye system, a synergistic effect due to electronic attraction between MB and AR183 was found at low AR183 concentration (10 mg/L), which promotes the adsorption of both dyes on the MWCNT. However, MB adsorption could be reduced at higher AR183 concentration (>20 mg/L) due to a strong electrostatic attraction between MWCNT-AR183. | |
dc.description.peerreviewed | Yes | |
dc.description.publicationstatus | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | Elsevier | |
dc.publisher.place | Netherlands | |
dc.relation.ispartofstudentpublication | N | |
dc.relation.ispartofpagefrom | 34 | |
dc.relation.ispartofpageto | 40 | |
dc.relation.ispartofjournal | Chemical Engineering Journal | |
dc.relation.ispartofvolume | 197 | |
dc.rights.retention | Y | |
dc.subject.fieldofresearch | Chemical engineering | |
dc.subject.fieldofresearch | Water treatment processes | |
dc.subject.fieldofresearch | Civil engineering | |
dc.subject.fieldofresearch | Environmental engineering | |
dc.subject.fieldofresearchcode | 4004 | |
dc.subject.fieldofresearchcode | 400411 | |
dc.subject.fieldofresearchcode | 4005 | |
dc.subject.fieldofresearchcode | 4011 | |
dc.title | Synergistic and competitive adsorption of organic dyes on multiwalled carbon nanotubes | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
gro.date.issued | 2012 | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | Li, Qin | |