PMID- 35494104
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220716
IS  - 2046-2069 (Electronic)
IS  - 2046-2069 (Linking)
VI  - 11
IP  - 63
DP  - 2021 Dec 13
TI  - Matrix-dispersed magnetic molecularly-imprinted polyaniline for the effective 
      removal of chlorpyrifos pesticide from contaminated water.
PG  - 39768-39780
LID - 10.1039/d1ra07833j [doi]
AB  - We report a new adsorbent nanocomposite material based on matrix-dispersed 
      superparamagnetic iron oxide nanoparticles (SPIONs) in molecularly-imprinted 
      polyaniline for the removal of chlorpyrifos (CPF), a hazardous organophosphate 
      pesticide, from water. The synthesized magnetic molecularly-imprinted polymer 
      (MMIP) was characterized by FTIR spectroscopy, XRD, magnetic susceptibility, DLS, 
      zeta potential measurement, SEM and high-resolution TEM imaging. The average size 
      of the naked SPIONs ranges from 15 to 30 nm according to the high-resolution TEM 
      analysis. Moreover, the adsorption kinetics, thermodynamic parameters (DeltaG, DeltaH and 
      DeltaS), adsorption isotherms and rebinding conditions were investigated in detail. 
      The proposed MMIP has an imprinting factor of 1.64. In addition, it showed a high 
      experimental adsorption capacity of 1.77 mg g(-1) and a removal efficiency of 
      nearly 80%. The fabricated MMIP material demonstrated excellent magnetic 
      susceptibility allowing for easy separation using an external magnetic field. The 
      adsorption mechanism of CPF onto the MMIP adsorbent followed the second-order 
      kinetics model and fitted to the Temkin adsorption isotherm. By studying the 
      adsorption thermodynamics, negative DeltaG values (-1.955 kJ mol(-1) at room 
      temperature) were obtained revealing that the adsorption process is spontaneous. 
      Furthermore, the maximum adsorption capacity was obtained at room temperature 
      (ca. 303 K), neutral pH and using a high CPF concentration.
CI  - This journal is (c) The Royal Society of Chemistry.
FAU - Saad, Hadeel
AU  - Saad H
AD  - Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt.
FAU - Nour El-Dien, F A
AU  - Nour El-Dien FA
AUID- ORCID: 0000-0003-4251-4336
AD  - Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt.
FAU - El-Gamel, Nadia E A
AU  - El-Gamel NEA
AD  - Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt.
FAU - Abo Dena, Ahmed S
AU  - Abo Dena AS
AUID- ORCID: 0000-0001-9624-4656
AD  - Pharmaceutical Chemistry Department, National Organization for Drug Control and 
      Research (NODCAR) Giza Egypt.
AD  - Faculty of Oral and Dental Medicine, Future University in Egypt (FUE) New Cairo 
      Egypt.
LA  - eng
PT  - Journal Article
DEP - 20211214
PL  - England
TA  - RSC Adv
JT  - RSC advances
JID - 101581657
PMC - PMC9044561
COIS- There are no conflicts to declare.
EDAT- 2022/05/03 06:00
MHDA- 2022/05/03 06:01
PMCR- 2021/12/14
CRDT- 2022/05/02 06:28
PHST- 2021/10/23 00:00 [received]
PHST- 2021/12/06 00:00 [accepted]
PHST- 2022/05/02 06:28 [entrez]
PHST- 2022/05/03 06:00 [pubmed]
PHST- 2022/05/03 06:01 [medline]
PHST- 2021/12/14 00:00 [pmc-release]
AID - d1ra07833j [pii]
AID - 10.1039/d1ra07833j [doi]
PST - epublish
SO  - RSC Adv. 2021 Dec 14;11(63):39768-39780. doi: 10.1039/d1ra07833j. eCollection 
      2021 Dec 13.