Magnetically recyclable Ni1-xCdxCeyFe2-yO4-rGO nanocomposite photocatalyst for visible light driven photocatalysis. Issue 9 (15th June 2020)

• Record Type: Journal Article
• Authors: Rahman, Abdur; Aadil, Muhammad; Akhtar, Mehwish; Warsi, Muhammad Farooq; Jamil, Akmal; Shakir, Imran; Shahid, Muhammad
• Is Part Of: Ceramics international. Volume 46:Issue 9(2020)
• Page Start: 13517
• Page End: 13526
• Publication Date: 2020-06-15
• Subjects: Magnetic nanoparticles -- Reduced graphene oxide -- Nanocomposite -- Photocatalysis -- Visible light; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.02.136
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In this study, a magnetically recyclable Ni1-x Cdx Cey Fe2-y O4 -rGO (x, y = 0.05) (NCCF-rGO) nanocomposite photocatalyst has been prepared by following a facile in-situ co-precipitation method combined with ultra-sonication means. The as-synthesized magnetically separable NCCF-rGO nanocomposite photocatalyst efficiently degrades methylene blue (MB) dye in comparison to bare Ni1-x Cdx Cey Fe2-y O4 (x, y = 0.05) (NCCF) nanoparticles (NPs) under visible light irradiation. The photo-degradation rate of MB with NCCF-rGO was ~9 times higher than NCCF nanoparticles (NPs). This enhanced photocatalytic performance of NCCF-rGO photocatalyst was due to the presence of reduced graphene oxide, which greatly help in production of photoactive species by reducing the rate of electro-hole pair recombination. The role of photoactive species that were responsible for the photocatalytic degradation of methylene blue has also been investigated. The as-synthesized NCCF-rGO photocatalyst expressed superb chemical stability and photocatalytic activity even after seven cycle runs. Moreover, the NCCF-rGO nanocomposite worked at all pH values and showed good acid resistance. In particular, the as-synthesized NCCF-rGO photocatalyst could be collected for the next cycle run by simply applying an external magnetic field. Hence, the NCCF-rGO nanocomposite could have potential use in organic dyes contained wastewater treatment.