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- W4383482467 abstract "Abstract Industrial and disinfection wastewater typically contains high levels of organic pollutants and residue hydrogen peroxide, which have caused environmental concerns. In this work, dual‐asymmetric MnO 2 @polymer microreactors are synthesized via pollutant polymerization for self‐driven and controlled H 2 O 2 decomposition. A hollow and asymmetric MnO 2 nanotube is derived from MnO 2 nanorods by selective acid etching and then coated by a polymeric layer from an aqueous phenolic pollutant via catalytic peroxymonosulfate (PMS)‐induced polymerization. The evolution of particle‐like polymers is controlled by solution pH, molar ratios of PMS/phenol, and reaction duration. The polymer‐covered MnO 2 tubing‐structured micromotors presented a controlled motion velocity, due to the reverse torque driven by the O 2 bubbles from H 2 O 2 decomposition in the inner tunnels. In addition, the partially coated polymeric layer can regulate the exposure and population of Mn active sites to control the H 2 O 2 decomposition rate, thus avoiding violent motions and massive heat caused by vigorous H 2 O 2 decomposition. The microreactors can maintain the function of mobility in an ultra‐low H 2 O 2 environment (<0.31 wt.%). This work provides a new strategy for the transformation of micropollutants to functional polymer‐based microreactors for safe and controlled hydrogen peroxide decomposition for environmental remediation." @default.
- W4383482467 created "2023-07-08" @default.
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- W4383482467 date "2023-07-06" @default.
- W4383482467 modified "2023-10-17" @default.
- W4383482467 title "Catalytic Pollutant Upgrading to Dual‐Asymmetric MnO<sub>2</sub>@polymer Nanotubes as Self‐Propelled and Controlled Micromotors for H<sub>2</sub>O<sub>2</sub> Decomposition" @default.
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- W4383482467 doi "https://doi.org/10.1002/smtd.202300588" @default.
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