Adsorption characteristics of methylene blue onto the N-succinyl-chitosan-<Emphasis Type="Italic">g</Emphasis>-polyacrylamide/attapulgite composite |
| |
| Authors: | Qi Li Yahong Zhao Li Wang Wang Aiqin |
| |
| Affiliation: | (1) Health Research Center and School of Health, Baqiyatallah University of Medical Sciences, Tehran, I.R. Iran;(2) Environmental Health Engineering Department, School of Public Health, Hamadan University of Medical Sciences, Hamadan, I.R. Iran |
| |
| Abstract: | N-succinyl-chitosan-g-polyacrylamide/attapulgite (NSC-g-PAM/APT) composite was applied as adsorbent for the removal of methylene blue (MB) from aqueous solution. The initial pH
value of the dye solutions, the contact temperature, the contact time and the concentration of the dye solutions on adsorption
capacity of the composite for MB dye were investigated. The adsorption kinetics and isotherms were also studied. It was shown
that all the sorption processes were better fitted by pseudo-second-order equation and the Langmuir equation. The results
indicated that the adsorption capacity of the composite was higher than those of chitosan (CTS) and attapulgite (APT). The
desorption studies revealed that the composite provided the potential for regeneration and reuse after MB dye adsorption,
which implied that the composite could be used as quite effective adsorbent for the removal of MB from aqueous solution. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
