TY - JOUR
T1 - Zn/Co-ZIF reinforced sugarcane bagasse aerogel for highly efficient catalytic activation of peroxymonosulfate
AU - Lei, Yongxin
AU - Sun, Wen
AU - Tiwari, Santosh K.
AU - Thummavichai, Kunyapat
AU - Ola, Oluwafunmilola
AU - Qiu, Xupeng
AU - Ma, Zhiyuan
AU - Wang, Nannan
AU - Zhu, Yanqiu
PY - 2021/12/1
Y1 - 2021/12/1
N2 - 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.
AB - 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.
KW - Bagasse cellulose aerogel
KW - Zeolitic imidazolate frameworks
KW - Zn doped
KW - Peroxymonosulfate (PMS) Oxidation
KW - Water stability
UR - http://www.scopus.com/inward/record.url?scp=85120501675&partnerID=8YFLogxK
U2 - 10.1016/j.jece.2021.106885
DO - 10.1016/j.jece.2021.106885
M3 - Article
SN - 2213-3437
VL - 9
JO - Journal of Environmental Chemical Engineering
JF - Journal of Environmental Chemical Engineering
IS - 6
M1 - 106885
ER -