Zn/Co-ZIF reinforced sugarcane bagasse aerogel for highly efficient catalytic activation of peroxymonosulfate

Lei, Yongxin; Sun, Wen; Tiwari, Santosh K.; Thummavichai, Kunyapat; Ola, Oluwafunmilola; Qin, Xupeng; Ma, Zhiyuan; Wang, Nannan; Zhu, Yanqiu

Abstract

Sugarcane bagasse is the main solid waste of sugar extraction industry. However, there are less eco-friendly treatment methods for this kind of waste material. Most of them have been burned and this is a challenge for effective utilization of sugarcane. Herein, Zn/Co-ZIF nanoparticles are loaded onto the aerogel obtained from bagasse cellulose by doping method to form pomegranate-like structure products, i.e., Zn/Co-ZIF@GEL. By simulating the pomegranate-biomimetic structure, the leaching of cobalt ions is suppressed and enhanced its catalytic activity. Also, Zn/Co-ZIF@GEL behaves outstanding peroxymonosulfate (PMS) activation reactivity to degrade Rhodamine B (RhB) with achieving 100% removal rate in 30 min with enhanced water stability. The outer wrapping of nanoparticles by aerogel exhibits excellent reusability and the removal rate remains above 92% after 4 cycles. X-ray photoelectron spectroscopy (XPS) verifies the electron transfer between the heterostructures of Zn and Co could ensure the catalyst continues to complete the redox cycle with synergistic effect. Electron paramagnetic resonance (EPR) further investigates the non-radical singlet oxygen is the predominant degradation pathway of RhB. This work provides a new strategy for improved bagasse derivate ZIF catalytic application.

Citation

Lei, Y., Sun, W., Tiwari, S. K., Thummavichai, K., Ola, O., Qin, X., …Zhu, Y. (2021). Zn/Co-ZIF reinforced sugarcane bagasse aerogel for highly efficient catalytic activation of peroxymonosulfate. Journal of Environmental Chemical Engineering, 9(6), Article 106885. https://doi.org/10.1016/j.jece.2021.106885

• Journal Article Type: Article
• Acceptance Date: Nov 27, 2021
• Online Publication Date: Nov 27, 2021
• Publication Date: 2021-12
• Deposit Date: Nov 29, 2021
• Publicly Available Date: Nov 28, 2023
• Journal: Journal of Environmental Chemical Engineering
• Print ISSN: 2213-2929
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 9
• Issue: 6
• Article Number: 106885
• DOI: https://doi.org/10.1016/j.jece.2021.106885
• Keywords: Bagasse cellulose aerogel; Zeolitic imidazolate frameworks; Zn doped; Peroxymonosulfate (PMS); Oxidation; Water stability
• Public URL: https://nottingham-repository.worktribe.com/output/6840260
• Publisher URL: https://www.sciencedirect.com/science/article/abs/pii/S2213343721018625?via%3Dihub