Rapid elimination of antibiotic gemifloxacin mesylate and methylene blue over Pt nanoparticles dispersed chitosan/g-C 3 N 4 ternary visible light photocatalyst.

Autor: Faisal M; Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran, 11001, Saudi Arabia.; Department of Chemistry, Faculty of Science and Arts, Najran University, Najran, 11001, Saudi Arabia., Ahmed J; Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran, 11001, Saudi Arabia.; Department of Chemistry, Faculty of Science and Arts, Najran University, Najran, 11001, Saudi Arabia., Jalalah M; Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran, 11001, Saudi Arabia.; Department of Electrical Engineering, College of Engineering, Najran University, Najran, 11001, Saudi Arabia., Alsareii SA; Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran, 11001, Saudi Arabia.; Department of Surgery, College of Medicine, Najran University, Najran, 11001, Saudi Arabia., Alsaiari M; Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran, 11001, Saudi Arabia.; Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Sharurah, 68342, Saudi Arabia., Harraz FA; Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran, 11001, Saudi Arabia. faharraz@nu.edu.sa.; Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Sharurah, 68342, Saudi Arabia. faharraz@nu.edu.sa.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2023 May; Vol. 30 (22), pp. 61710-61725. Date of Electronic Publication: 2023 Mar 18.
DOI: 10.1007/s11356-023-26456-w
Abstrakt: Appropriate material selection and proper understanding of bandgap modification are key factors for the development of efficient photocatalysts. Herein, we developed an efficient, well-organized visible light oriented photocatalyst based on g-C 3 N 4 in association with polymeric network of chitosan (CTSN) and platinum (Pt) nanoparticles utilizing a straightforward chemical approach. Modern techniques like XRD, XPS, TEM, FESEM, UV-Vis, and FTIR spectroscopy were exploited for characterization of synthesized materials. XRD results confirmed the involvement of α-polymorphic form of CTSN in graphitic carbon nitride. XPS investigation confirmed the establishment of trio photocatalytic structure among Pt, CTSN, and g-C 3 N 4 . TEM examination showed that the synthesized g-C 3 N 4 possesses fine fluffy sheets like structure (100 to 500 nm in size) intermingled with a dense layered framework of CTSN with good dispersion of Pt nanoparticles on g-C 3 N 4 and CTSN composite structure. The bandgap energies for g-C 3 N 4 , CTSN/g-C 3 N 4 , and Pt@ CTSN/g-C 3 N 4 photocatalysts were found to be 2.94, 2.73, and 2.72 eV, respectively. The photodegradation skills of each created structure have been examined on antibiotic gemifloxacin mesylate and methylene blue (MB) dye. The newly developed Pt@CTSN/g-C 3 N 4 ternary photocatalyst was found to be efficacious for the elimination of gemifloxacin mesylate (93.3%) in 25 min and MB (95.2%) just in 18 min under visible light. Designed Pt@CTSN/g-C 3 N 4 ternary photocatalytic framework exhibited ⁓ 2.20 times more effective than bare g-C 3 N 4 for the destruction of antibiotic drug. This study provides a simple route towards the designing of rapid, effective visible light oriented photocatalyts for the existing environmental issues.
(© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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