Enhanced degradation of ciprofloxacin in water using ternary photocatalysts TiO 2 /SnO 2 /g-C 3 N 4 under UV, visible, and solar light.

Autor: Escareño-Torres GA; Unidad Profesional Interdisciplinaria de Ingeniería Campus Zacatecas, Instituto Politécnico Nacional, Calle Circuito Cerro del Gato No. 202, Col. Cd Administrativa, 98160, Zacatecas, Zac., C.P, Mexico., Pinedo-Escobar JA; Unidad Académica de Ciencias Químicas, Universidad Autónoma de Zacatecas, Campus Siglo XXI Edificio 6, Carr. a Gdl Km 6.0, Ejido La Escondida, 98160, Zacatecas, Zac., C.P, Mexico., De Haro-Del Río DA; Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Pedro de Alba S/N., 66455, San Nicolás de los Garza, Nuevo León, Mexico., Becerra-Castañeda P; Unidad Académica de Ciencias Químicas, Universidad Autónoma de Zacatecas, Campus Siglo XXI Edificio 6, Carr. a Gdl Km 6.0, Ejido La Escondida, 98160, Zacatecas, Zac., C.P, Mexico., Araiza DG; Instituto de Ciencias Aplicadas Y Tecnología, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico, C.P, Mexico., Inchaurregui-Méndez H; Unidad Profesional Interdisciplinaria de Ingeniería Campus Zacatecas, Instituto Politécnico Nacional, Calle Circuito Cerro del Gato No. 202, Col. Cd Administrativa, 98160, Zacatecas, Zac., C.P, Mexico., Carrillo-Martínez CJ; Unidad Académica de Ciencias Químicas, Universidad Autónoma de Zacatecas, Campus Siglo XXI Edificio 6, Carr. a Gdl Km 6.0, Ejido La Escondida, 98160, Zacatecas, Zac., C.P, Mexico., González-Rodríguez LM; Unidad Profesional Interdisciplinaria de Ingeniería Campus Zacatecas, Instituto Politécnico Nacional, Calle Circuito Cerro del Gato No. 202, Col. Cd Administrativa, 98160, Zacatecas, Zac., C.P, Mexico. lmgonzalezr@ipn.mx.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Jun; Vol. 31 (28), pp. 40174-40189. Date of Electronic Publication: 2023 Aug 19.
DOI: 10.1007/s11356-023-29166-5
Abstrakt: In this study, we report on the synthesis of ternary photocatalysts comprising TiO 2 /SnO 2 /g-C 3 N 4 for the degradation of ciprofloxacin (CIP) in water. SnO 2 nanoparticles were synthesized via the sol-gel method, while g-C 3 N 4 was obtained through melamine calcination. Commercial TiO 2 and SnO 2 nanopowders were also used. The heterojunctions were synthesized via the wet impregnation method. The photocatalysts were characterized via various techniques, including XRD, TEM, STEM, FTIR, N 2 adsorption, UV-Vis DR, and hole tests. Photocatalytic degradation tests of CIP were carried out under UV, visible, and solar radiation. The P25/npA/g-C 3 N 4 (90/10) material exhibited the best performance, achieving CIP degradation of over 97%. The synthesized materials demonstrated excellent initial adsorption of CIP, around 30%, which facilitated subsequent degradation. Notably, the CIP photocatalytic degradation tests performed under solar radiation showed a synergistic effect between the base materials and carbon nitride in highly energetic environments. These results highlight the effectiveness of ternary photocatalysts TiO 2 /SnO 2 /g-C 3 N 4 for CIP degradation, particularly under solar radiation.
(© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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