@article{e01ccfd2c812403791e353e58f956705,
title = "Crystallinity and valence states of manganese oxides in Fenton-like polymerization of phenolic pollutants for carbon recycling against degradation",
abstract = "Various MnOx phases and crystals were investigated in peroxymonosulfate (PMS) activation for oxidation of aqueous phenolic pollutants. MnOx with controlled crystal structure (α, β, γ, and amorphous-MnO2) and redox states (Mn2O3, and MnO) can induce different oxidative pathways toward organic polymerization against degradation in acidic conditions. Surface MnⅡ(s) and MnⅢ(s) of MnOx tend to bond with PMS to generate confined Mn(Ⅱ, Ⅲ)(s)− (HO)OSO3− complexes to initiate a nonradical electron-transfer pathway (ETP). Meanwhile, high-valence MnⅣ(s) in MnOx will directly attack micropollutants and spontaneously be reduced to low-valence states (MnⅡ(s) and MnⅢ(s)) to initiate ETP. Mn2O3 can activate PMS to generate other radical species for mineralization. ETP will selectively initiate one-electron abstraction of phenol molecules into monomer phenoxy radicals and polyphenols on catalyst surface. Thus, manganese crystal structures will govern the surface redox species to induce multiple oxidation pathways toward different polymer products for water decontamination and carbon recycle.",
keywords = "Electron-transfer pathway, Manganese oxide, Nonradical, Peroxymonosulfate, Polymerization",
author = "Yangyang Yang and Panpan Zhang and Kunsheng Hu and Peng Zhou and Yuxian Wang and Asif, \{Abdul Hannan\} and Xiaoguang Duan and Hongqi Sun and Shaobin Wang",
note = "Funding Information: The authors acknowledge the help from Dr Ashley Slattery for TEM tests from Adelaide Microscopy and Microanalysis, and thank Prof Tara Pukala and Mr Christopher Cursaro for MALDI-TOF mass spectra tests from Adelaide Proteomics Centre (APC). We appreciate the assistance of the analytical lab in the Faculty of Sciences, Engineering and Technology (SET) (ECMS) at The University of Adelaide. The simulations were performed on resources provided by the Pawsey Supercomputing Centre with funding from the Australian Government and the Government of Western Australia. This work was supported by the Australian Research Council (DP190103548). Funding Information: The authors acknowledge the help from Dr Ashley Slattery for TEM tests from Adelaide Microscopy and Microanalysis, and thank Prof Tara Pukala and Mr Christopher Cursaro for MALDI-TOF mass spectra tests from Adelaide Proteomics Centre (APC). We appreciate the assistance of the analytical lab in the Faculty of Sciences, Engineering and Technology (SET) (ECMS) at The University of Adelaide. The simulations were performed on resources provided by the Pawsey Supercomputing Centre with funding from the Australian Government and the Government of Western Australia. This work was supported by the Australian Research Council ( DP190103548 ). Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",
year = "2022",
month = oct,
day = "15",
doi = "10.1016/j.apcatb.2022.121593",
language = "English",
volume = "315",
journal = "Applied Catalysis B: Environmental",
issn = "0926-3373",
publisher = "Elsevier",
}