PMID- 37348580
OWN - NLM
STAT- MEDLINE
DCOM- 20230831
LR  - 20230831
IS  - 1879-0003 (Electronic)
IS  - 0141-8130 (Linking)
VI  - 247
DP  - 2023 Aug 30
TI  - Chitosan cross-linked and grafted with epichlorohydrin and 
      2,4-dichlorobenzaldehyde as an efficient adsorbent for removal of Pb(II) ions 
      from aqueous solution.
PG  - 125503
LID - S0141-8130(23)02397-8 [pii]
LID - 10.1016/j.ijbiomac.2023.125503 [doi]
AB  - Epichlorohydrin-modified chitosan-Schiff base composite (CS/24Cl/ECH) prepared 
      via the one-pot reaction as characterized by Fourier transform Infra-Red 
      spectroscopy (FT-IR), X-ray powder diffraction (XRD), Differential scanning 
      calorimetry (DSC) and Scanning electron microscope (SEM). Its removal ability of 
      Pb(II) ions from aqueous solution was investigated. The adsorption of Pb(II) ions 
      carried out at different initial pH, dose of CS/24-Cl/ECH, contact time and 
      co-existing ions. The maximum adsorption capacity of Pb(II) ions was 170 mg/g. 
      Finally, based on the absorption results, the adsorption of Pb(II) ions was 
      fitted by single-layer Langmuir isotherm model and the pseudo-second-order (PSO) 
      kinetics model. The absorption mechanism of Pb(II) ions was controlled by 
      chemical coordination Pb(II) ions with the active sites on the surface of 
      CS/24Cl/ECH composite. Also, CS/24Cl/ECH showed excellent recyclable efficiency 
      up to 5 cycle and potential sorbent for other heavy metal ions.
CI  - Copyright (c) 2023 The Authors. Published by Elsevier B.V. All rights reserved.
FAU - Xiao, Li
AU  - Xiao L
AD  - Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, 
      College of Life Science, Huzhou University, Huzhou 313000, PR China. Electronic 
      address: tdxiao427@126.com.
FAU - Shan, Hanbin
AU  - Shan H
AD  - Division of Chemical Pharmaceuticals, Shanghai Institute of Pharmaceutical 
      Industry, Shanghai 201203, PR China.
FAU - Wu, Yi
AU  - Wu Y
AD  - Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, 
      College of Life Science, Huzhou University, Huzhou 313000, PR China.
LA  - eng
PT  - Journal Article
DEP - 20230620
PL  - Netherlands
TA  - Int J Biol Macromol
JT  - International journal of biological macromolecules
JID - 7909578
RN  - 9012-76-4 (Chitosan)
RN  - 08OOR508C0 (Epichlorohydrin)
RN  - 2P299V784P (Lead)
RN  - 0 (Ions)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - *Chitosan/chemistry
MH  - Epichlorohydrin/chemistry
MH  - Lead
MH  - Spectroscopy, Fourier Transform Infrared
MH  - Adsorption
MH  - Ions/chemistry
MH  - Kinetics
MH  - *Water Pollutants, Chemical/chemistry
MH  - Hydrogen-Ion Concentration
OTO - NOTNLM
OT  - CS/24Cl/ECH composite
OT  - Langmuir isotherm
OT  - Pb(II) adsorption
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/06/23 01:10
MHDA- 2023/08/31 06:42
CRDT- 2023/06/22 19:12
PHST- 2023/03/18 00:00 [received]
PHST- 2023/05/01 00:00 [revised]
PHST- 2023/06/19 00:00 [accepted]
PHST- 2023/08/31 06:42 [medline]
PHST- 2023/06/23 01:10 [pubmed]
PHST- 2023/06/22 19:12 [entrez]
AID - S0141-8130(23)02397-8 [pii]
AID - 10.1016/j.ijbiomac.2023.125503 [doi]
PST - ppublish
SO  - Int J Biol Macromol. 2023 Aug 30;247:125503. doi: 10.1016/j.ijbiomac.2023.125503. 
      Epub 2023 Jun 20.