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Research Article
Ahmed Elbarbary
Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
Corresponding Author
ORCiD: https://orcid.org/0000-0001-5318-602X
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An effective and novel adsorbent of poly(vinyl alcohol)/polyacrylamide/TiO2/SiO2 (PVA-co-AAm/TiO2/SiO2) nanocomposite synthesized by γ-irradiation polymerization of PVA and AAm in presence of TiO2/SiO2 nanoparticles at different irradiation doses (10, 30 and 50 kGy) for removal of Cu(II) ions and basic blue 3 dye from their aqueous solutions. FT-IR, TEM, XRD, SEM, EDS and DLS analyzed the chemical properties of nanocomposites. The nanocomposite prepared at 30 kGy (PVA-co-AAm/TiO2/SiO2-30) shows high swelling of 197.7 (%) and gelation of 93.1 %. The adsorption capacity (mg/g) and removal (%) of basic blue 3 dye and Cu(II) ions onto nanocomposites by varying experimental conditions were investigated. The PVA-co-AAm/TiO2/SiO2-30 showed high adsorption capacity 3 folds rather than PVA-co-AAm. The equilibrium adsorption for basic blue 3 dye and Cu(II) was 123.9 mg/g and 190.3 mg/g with removal of 82.6 and 95.1 %, respectively. The results of the adsorption of dye or metal ions follow the Pseudo-second order adsorption kinetic, fit with the Langmuir isotherm and the adsorption process is endothermic and spontaneous in nature. The results revealed that the PVA-co-AAm/TiO2/SiO2 nanocomposites could be employed as an effectual adsorbent for adsorption of basic blue dye and Cu(II) ions from wastewater with high adsorption capacity and recovery.
Keywords
radiation polymerization, poly(vinyl alcohol), acrylamide, TiO2, SiO2, nanocomposite, basic blue 3 dye, copper ions. adsorption, removal
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This preprint is under consideration at Journal of Inorganic and Organometallic Polymers and Materials. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Ahmed Elbarbary
Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
Corresponding Author
ORCiD: https://orcid.org/0000-0001-5318-602X
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 24 Mar, 2021
No community comments so far
Reviewers invited
Invitations sent on 19 Mar, 2021
Review #? received
Received 19 Mar, 2021
Editor assigned
On 18 Mar, 2021
First submitted
On 18 Mar, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
An effective and novel adsorbent of poly(vinyl alcohol)/polyacrylamide/TiO2/SiO2 (PVA-co-AAm/TiO2/SiO2) nanocomposite synthesized by γ-irradiation polymerization of PVA and AAm in presence of TiO2/SiO2 nanoparticles at different irradiation doses (10, 30 and 50 kGy) for removal of Cu(II) ions and basic blue 3 dye from their aqueous solutions. FT-IR, TEM, XRD, SEM, EDS and DLS analyzed the chemical properties of nanocomposites. The nanocomposite prepared at 30 kGy (PVA-co-AAm/TiO2/SiO2-30) shows high swelling of 197.7 (%) and gelation of 93.1 %. The adsorption capacity (mg/g) and removal (%) of basic blue 3 dye and Cu(II) ions onto nanocomposites by varying experimental conditions were investigated. The PVA-co-AAm/TiO2/SiO2-30 showed high adsorption capacity 3 folds rather than PVA-co-AAm. The equilibrium adsorption for basic blue 3 dye and Cu(II) was 123.9 mg/g and 190.3 mg/g with removal of 82.6 and 95.1 %, respectively. The results of the adsorption of dye or metal ions follow the Pseudo-second order adsorption kinetic, fit with the Langmuir isotherm and the adsorption process is endothermic and spontaneous in nature. The results revealed that the PVA-co-AAm/TiO2/SiO2 nanocomposites could be employed as an effectual adsorbent for adsorption of basic blue dye and Cu(II) ions from wastewater with high adsorption capacity and recovery.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
This preprint is available for download as a PDF.
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