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author:

Chen, F. (Chen, F..) [1] | Hong, M. (Hong, M..) [2] | You, W. (You, W..) [3] | Li, C. (Li, C..) [4] | Yu, Y. (Yu, Y..) [5]

Indexed by:

Scopus

Abstract:

A novel adsorbent NH 2 /MCM-41/NTAA, capable of simultaneous adsorption of cations and anions from aqueous solution, was prepared by immobilization of amine and nitrilotriacetic acid anhydride (NTAA) onto MCM-41. The structures and properties before and after surface modification were systematically investigated through X-ray diffraction (XRD), transmission electron microscope (TEM) and scanning electron microscope (SEM), nitrogen adsorption-desorption, and infrared spectroscopy (FTIR), thermogravimetry (TGA) and X-ray photoelectron spectroscopy (XPS). They together confirm that the amine and NTAA group were chemically bonded to the internal surface of the mesoporous. The NH 2 /MCM-41/NTAA were used to adsorb Pb 2+ and MnO 4 - in an aqueous solution in a batch system, and the maximum adsorption efficiency was found to occur at pH 5.0 and 3.0, respectively. NH 2 /MCM-41/NTAA exhibit preferable removal of Pb 2+ through electrostatic interactions and chelation, whereas it captures MnO 4 - by means of electrostatic interactions. The experimental data are fitted the Langmuir isotherm model reasonably well, with the maximum adsorption capacity of 147 mg/g for Pb 2+ and of 156 mg/g for MnO 4 - . The adsorption rates of both Pb 2+ and MnO 4 - are found to follow the pseudo-second order kinetics. Furthermore, the NH 2 /MCM-41/NTAA adsorbent performs good recyclability and reusability for 5 cycles use. This study indicates a potential applicability of NH 2 /MCM-41/NTAA as new absorbents for effective simultaneous adsorption of hazardous metal ions and anions from wastewater. © 2015 Elsevier B.V. All rights reserved.

Keyword:

Adsorption; Amine; MCM-41; MnO 4 - ions; Nitrilotriacetic acid anhydride; Pb 2+ ions

Community:

  • [ 1 ] [Chen, F.]College of Materials Science and Engineering, Fuzhou University, New Campus, Fujian Province, China
  • [ 2 ] [Chen, F.]Key Laboratory of Eco-materials Advanced Technology, Fujian Province, 350116, China
  • [ 3 ] [Hong, M.]College of Materials Science and Engineering, Fuzhou University, New Campus, Fujian Province, China
  • [ 4 ] [Hong, M.]Key Laboratory of Eco-materials Advanced Technology, Fujian Province, 350116, China
  • [ 5 ] [You, W.]College of Materials Science and Engineering, Fuzhou University, New Campus, Fujian Province, China
  • [ 6 ] [You, W.]Key Laboratory of Eco-materials Advanced Technology, Fujian Province, 350116, China
  • [ 7 ] [Li, C.]College of Materials Science and Engineering, Fuzhou University, New Campus, Fujian Province, China
  • [ 8 ] [Li, C.]Key Laboratory of Eco-materials Advanced Technology, Fujian Province, 350116, China
  • [ 9 ] [Yu, Y.]College of Materials Science and Engineering, Fuzhou University, New Campus, Fujian Province, China
  • [ 10 ] [Yu, Y.]Key Laboratory of Eco-materials Advanced Technology, Fujian Province, 350116, China

Reprint 's Address:

  • [Yu, Y.]College of Materials Science and Engineering, Fuzhou University, New CampusChina

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Source :

Applied Surface Science

ISSN: 0169-4332

Year: 2015

Volume: 357

Page: 856-865

3 . 1 5

JCR@2015

6 . 3 0 0

JCR@2023

ESI HC Threshold:335

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 53

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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