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Research Article
Ragab E. Abouzeid
National Research Centre
Corresponding Author
ORCiD: https://orcid.org/0000-0002-1501-3336
License:
This work is licensed under a CC BY 4.0 License. Read Full License
A Novel and sustainable chitosan (CS)/ activated charcoal (AC) composites were prepared by cross linking with epichlorohydrine (ECH) to form a porous structure. Different titanium dioxide nanoparticles (TiO2 NPs) concentrations (0, 0.2, 0.4, and 0.8% w/w) were added to enhance the photocatalytic, antibacterial, larvicidal, and pupicidal activities efficiency toward rose bengal (RB) dye and the Culex Pipiens. The composites were characterized by FT-IR, XRD and SEM. The SEM images revealed the porous structure of CS/AC and TiO2 nanoparticles were uniformly distributed in the CS/AC matrix. The degradation of RB dye was used to test the photocatalytic behavior of the composites. Supporting TiO2 on a CS/AC matrix resulted in a significant increase in photocatalytic performance. The antibacterial activities supported by CS/AC/TiO2 NPs were evaluated by bacterial growth inhibition against B. subtilis, S. aureus, E. coli and P. aeruginosa. The results showed that CS/AC/TiO2 NPs composite has an inhibitory effect and therefore considered as antibacterial agents. CS/AC/0.4%TiO2NPs showed maximum efficacy against larvicidal activity and pupicidal of mosquito vector which recorded 99.00 ± 1.14, 95.00 ± 1.43, 92.20 ± 2.64 for first, second and third larval instars and 66.00 ± 2.39 for pupal mortality, while the repellent activity reported high protection at 82.95 ± 2.99 with 3.24 mg/cm2 dose compared to control DEET.
Keywords
Chitosan, Activated charcoal, Photodegradation
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- Scheme1.png
Scheme1. Molecular structure of RB salt: quinoid (q)form.
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CURRENT STATUS: Published
View the published article at Environmental Science and Pollution Research.
Version 1
Posted 24 May, 2021
No community comments so far
Editorial decision: Major Revision
On 15 Jul, 2021
Reviews received
Received 18 Jun, 2021
Reviewers invited
Invitations sent on 18 May, 2021
Editor invited
On 12 May, 2021
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On 03 May, 2021
First submitted
On 28 Apr, 2021
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See the published version of this preprint at Environmental Science and Pollution Research.
This is a preprint, 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
Ragab E. Abouzeid
National Research Centre
Corresponding Author
ORCiD: https://orcid.org/0000-0002-1501-3336
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: Published
View the published article at Environmental Science and Pollution Research.
Version 1
Posted 24 May, 2021
No community comments so far
Editorial decision: Major Revision
On 15 Jul, 2021
Reviews received
Received 18 Jun, 2021
Reviewers invited
Invitations sent on 18 May, 2021
Editor invited
On 12 May, 2021
Editor assigned
On 03 May, 2021
First submitted
On 28 Apr, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Environmental Science and Pollution Research.
A Novel and sustainable chitosan (CS)/ activated charcoal (AC) composites were prepared by cross linking with epichlorohydrine (ECH) to form a porous structure. Different titanium dioxide nanoparticles (TiO2 NPs) concentrations (0, 0.2, 0.4, and 0.8% w/w) were added to enhance the photocatalytic, antibacterial, larvicidal, and pupicidal activities efficiency toward rose bengal (RB) dye and the Culex Pipiens. The composites were characterized by FT-IR, XRD and SEM. The SEM images revealed the porous structure of CS/AC and TiO2 nanoparticles were uniformly distributed in the CS/AC matrix. The degradation of RB dye was used to test the photocatalytic behavior of the composites. Supporting TiO2 on a CS/AC matrix resulted in a significant increase in photocatalytic performance. The antibacterial activities supported by CS/AC/TiO2 NPs were evaluated by bacterial growth inhibition against B. subtilis, S. aureus, E. coli and P. aeruginosa. The results showed that CS/AC/TiO2 NPs composite has an inhibitory effect and therefore considered as antibacterial agents. CS/AC/0.4%TiO2NPs showed maximum efficacy against larvicidal activity and pupicidal of mosquito vector which recorded 99.00 ± 1.14, 95.00 ± 1.43, 92.20 ± 2.64 for first, second and third larval instars and 66.00 ± 2.39 for pupal mortality, while the repellent activity reported high protection at 82.95 ± 2.99 with 3.24 mg/cm2 dose compared to control DEET.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
This is a list of supplementary files associated with this preprint. Click to download.
- Scheme1.png
Scheme1. Molecular structure of RB salt: quinoid (q)form.
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