Nonradical reactions in environmental remediation processes: Uncertainty and challenges
MetadataShow full item record
Recent discoveries of nonradical oxidation in aqueous-phase advanced oxidation processes (AOPs) have induced tremendous interest in environmental remediation of wastewater, whereas different findings from a variety of investigations have also raised severe controversies in the occurrence and mecha nism of the nonradical reaction. Hence, critical understandings of the nonradical reaction will significantly advance the knowledge and its application for catalytic oxidation and wastewater treatment. In this review, we would like to present state-of-the-art research on nonradical pathways in persulfate-based AOPs, with emphases on the controversial methodologies for identifying the oxygen reactive species (ROS), ambiguous reaction mechanisms, intrinsic impacts of metal/carbon catalysts and organic substrates in the nonradical-based catalytic oxidation reactions. Moreover, further research directions on mechanistic investigation of the nonradical pathway with rational experimental design and advanced strategies, as well as the potential applications of the nonradical system are proposed.
Showing items related by title, author, creator and subject.
Duan, Xiaoguang; Sun, Hongqi; Wang, Shaobin (2018)Â© 2018 American Chemical Society. Conspectus Catalytic processes have remarkably boosted the rapid industrializations in chemical production, energy conversion, and environmental remediation. As one of the emerging ...
Occurrence of radical and nonradical pathways from carbocatalysts for aqueous and nonaqueous catalytic oxidationDuan, X.; Ao, Z.; Zhou, L.; Sun, Hongqi; Wang, G.; Wang, S. (2016)© 2016 Elsevier B.V. Metal-free activation of superoxides provides an efficient and environmentally benign strategy for heterogeneous catalytic oxidation. In this study, nanocarbons with varying carbon-conjugation structures ...
Nanodiamonds in sp<sup>2</sup>/sp<sup>3</sup>configuration for radical to nonradical oxidation: Core-shell layer dependenceDuan, Xiaoguang; Ao, Z.; Zhang, H.; Saunders, M.; Sun, H.; Shao, Z.; Wang, Shaobin (2018)© 2017 Elsevier B.V. Nanocarbons in molecular configurations of sp 2 /sp 3 present versatile structural and electronic properties, exhibiting a complexity in the structure-activity chemistry. In this work, we employed ...