Abstract
Nanomaterial-based catalytic conversion of hazardous organic pollutants into benign substances is one of the green methods employed for wastewater treatment. This study demonstrates the fabrication of (rGO-ZnO)/CuO nanocomposites (NCs) via a microwave (MW)-assisted method for (photo)catalytic application. The crystal structure, optical, morphological, and electrochemical characteristics were examined using X-ray diffraction (XRD), spectroscopic, microscopic, and electrochemical techniques. The analysis indicated that rod-like (rGO-ZnO)/CuO NCs having a nanoscale diameter with enhanced light absorption and well-matched band positions between rGO-ZnO and CuO were formed. Furthermore, the catalytic reduction of 4-nitrophenol (4-NP) and photocatalytic degradation of methylene blue (MB) tests showed remarkable results with rate constants of 0.468 min−1 for 4-NP reduction within 8 min and 0.02213 min−1 for MB degradation within 105 min. Thus, the artful decoration of ZnO nanorods (NRs) with CuO into the (rGO-ZnO)/CuO NCs interface is an effective strategy for fabricating highly efficient photocatalysts.
Funder
Adama Science and Technology University
Wachemo University
National Research Foundation of Korea
Subject
Inorganic Chemistry,Condensed Matter Physics,General Materials Science,General Chemical Engineering
Reference86 articles.
1. Khalid, Z.B., Nasrullah, M., Nayeem, A., Wahid, Z., Singh, L., and Krishnan, S. (2020). ACS Symposium Series, American Chemical Society.
2. Nanomaterials for removal of toxic elements from water;Lu;Coord. Chem. Rev.,2018
3. Environmental application of nanotechnology: Air, soil, and water;Ibrahim;Environ. Sci. Pollut. Res.,2016
4. Nanomaterials-enabled water and wastewater treatment;Zhang;NanoImpact,2016
5. Effect of key operational parameters on the photocatalytic oxidation of phenol by nanocrystalline sol-gel TiO2 under UV irradiation;Silva;J. Mol. Catal. A Chem.,2009
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