SiC@FeZnZiF as a Bifunctional Catalyst with Catalytic Activating PMS and Photoreducing Carbon Dioxide

Zhu, Zhiqi; Yang, Liaoliao; Xiong, Zhaodong; Liu, Daohan; Hu, Binbin; Wang, Nannan; Ola, Oluwafunmilola; Zhu, Yanqiu

Abstract

Herein, we encapsulated modified silicon carbide nanoparticles utilizing a metal–organic backbone. E-SiC-FeZnZIF composites were successfully prepared via Fe doping. The catalysis activity of this bifunctional composite material was evaluated by the degradation of tetracycline (THC) and carbamazepine (CBZ) and the reduction of carbon dioxide (CO2). Nano SiC has received widespread attention in advanced oxidation applications, especially in the catalytic activation of peroxymonosulfate (PMS). However, the inferior activity of SiC has severely restricted its practical use. In this study of dual functional composite materials, nano SiC was firstly etched under aqueous alkali. Then, zeolite imidazolate frame-8 (ZIF-8) was used for immobilization. The filling of the etched nano SiC with FeZnZiF was confirmed by SEM, XRD, FTIR, BET, and XPS analyses. In addition, E-SiC-FeZnZIF exhibited excellent catalytic activation of peroxymonosulfate (PMS) to oxidize water pollutants, which can degrade tetracycline hydrochloride (THC), achieving a removal rate of 72% within 60 min. Moreover, E-SiC-FeZnZIF exhibited a relatively high CO2 reduction rate with H2O. The yields of CO and CH4 were 0.085 and 0.509 μmol g−1, respectively, after 2 h, which are higher than that of 50 nm of commercial SiC (CO: 0.084 μmol g−1; CH4: 0.209 μmol g−1). This work provides a relatively convenient synthesis path for constructing metal skeleton composites for advanced oxidation and photocatalytic applications. This will have practical significance in protecting water bodies and reducing CO2, which are vital not only for maintaining the natural ecological balance and negative feedback regulation, but also for creating a new application carrier based on nano silicon carbide.

Citation

Zhu, Z., Yang, L., Xiong, Z., Liu, D., Hu, B., Wang, N., Ola, O., & Zhu, Y. (2023). SiC@FeZnZiF as a Bifunctional Catalyst with Catalytic Activating PMS and Photoreducing Carbon Dioxide. Nanomaterials, 13(10), Article 1664. https://doi.org/10.3390/nano13101664

• Journal Article Type: Article
• Acceptance Date: May 12, 2023
• Online Publication Date: May 18, 2023
• Publication Date: 2023-05
• Deposit Date: Jun 28, 2023
• Publicly Available Date: Jun 28, 2023
• Journal: Nanomaterials
• Electronic ISSN: 2079-4991
• Publisher: MDPI
• Peer Reviewed: Peer Reviewed
• Volume: 13
• Issue: 10
• Article Number: 1664
• DOI: https://doi.org/10.3390/nano13101664
• Keywords: Water treatment; advanced oxidation; photocatalysis; FeZif; core–shell structure; β-SiC
• Public URL: https://nottingham-repository.worktribe.com/output/21364045
• Additional Information: This is the peer reviewed version of the following article: Zhu Z, Yang L, Xiong Z, Liu D, Hu B, Wang N, Ola O, Zhu Y. SiC@FeZnZiF as a Bifunctional Catalyst with Catalytic Activating PMS and Photoreducing Carbon Dioxide. Nanomaterials. 2023; 13(10):1664, which has been published in final form at https://doi.org/10.3390/nano13101664