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Author:

Ao, Xianglong (Ao, Xianglong.) | Guan, Hongzhi (Guan, Hongzhi.) (Scholars:关宏志)

Indexed by:

EI Scopus SCIE

Abstract:

A novel hydrophilic Pb(II) ion-imprinted polymer (Pb(II)-IIP) was synthesized using lead ion as a template ion, 2-(allyl sulfur) nicotinic acid as functional monomer by precipitation polymerization method. The adsorption capacity of Pb(II)-IIP to Pb(II) was saturated at 16min, and the adsorption process is consistent with the quasi-second-order kinetic adsorption model. The optimum adsorption capacity of Pb(II)-IIP was 29.67mg/g, about triple than Pb(II)-NIP, and the adsorption is in accordance with the Langmuir isothermal model, which indicates that it is dominated by single layer chemical adsorption. X-ray Photoelectron Spectroscopy (XPS) and Energy Dispersive Spectrometer (EDS) data confirm that the chelate ratio of Pb(II) to 2-(allylthio) nicotinic acid is 1:2. In the presence of competing ions, the adsorption capacity of Pb(II)-IIP to Pb(II) is much larger than that of other ions, which indicates that Pb(II)-IIP is less disturbed by competitive ions. The experiment of application of practical wastewater shows that Pb(II)-IIP has a Pb(II) removal rate of 97.2% or more in practical industrial wastewater, which is in accordance with national emission standards. It is proved that Pb(II)-IIP is an effective material to remove Pb(II) in industrial wastewater.

Keyword:

imprinted polymer Adsorption polymerization isothermal model kinetic adsorption

Author Community:

  • [ 1 ] [Ao, Xianglong]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Guan, Hongzhi]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Ao, Xianglong]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China

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Source :

ADSORPTION SCIENCE & TECHNOLOGY

ISSN: 0263-6174

Year: 2018

Issue: 1-2

Volume: 36

Page: 774-787

2 . 9 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

ESI HC Threshold:192

JCR Journal Grade:3

Cited Count:

WoS CC Cited Count: 19

SCOPUS Cited Count: 23

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

Online/Total:211/10641995
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