Design of novel Z-scheme g-C 3 N 4 /TiO 2 /CuCo 2 O 4 heterojunctions for efficient visible light-driven photocatalyic degradation of rhodamine B.

Autor: Hamza AM; Department of Chemistry, College of Education, University of Al-Qadisiyah, Al Diwaniyah, Iraq.; Ministry of Education, General Directorate for Education in Babylon, Babylon, Iraq., Alshamsi HA; Department of Chemistry, College of Education, University of Al-Qadisiyah, Al Diwaniyah, Iraq. hassan.habeeb@qu.edu.iq.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Oct 09; Vol. 14 (1), pp. 23596. Date of Electronic Publication: 2024 Oct 09.
DOI: 10.1038/s41598-024-73915-6
Abstrakt: One of the most important environmental challenges that needs to be resolved is the industrial discharge of synthetic dyes. Graphitic carbon nitride (g-C 3 N 4 ), Titanium dioxide (TiO 2 ) and flower-like copper oxide (CuO)/copper cobaltite (CuCo 2 O 4 ) nanocomposites were synthesized in order to synthesis an effective visible light driven photocatalyst that could degrade Rhodamin B (Rh.B) dye under simulated solar light irradiation. The SEM and TEM results verifies that the flower-like CuO/CuCo 2 O 4 (CCO) structure and g-C 3 N 4 /TiO 2 (g-CN/TO) generated a smart hybrid structure with superior g-CN distribution. According to the photocatalytic studies, g- C 3 N 4 /TiO 2 /CuO/CuCo 2 O 4 (g-CN/TO/CCO) shows good photodegradation of Rh.B dye (99.9%) in minmal times (1 h) in CCO: g-CN/TO (2:1) ratio by Z-Scheme mechanism. The enhanced visible light absorption and effective electron-hole pair separation provided by the synergistic dispersion of CuO/CuCo 2 O 4 and g-C 3 N 4 can be attributed to the improved photocatalytic performances. These novel insights into g-CN/TO/CCO based photocatalysts are useful for treating industrial effluent.
(© 2024. The Author(s).)
Databáze: MEDLINE
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