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This study presents hydrogen peoxide determination using a new electrochemical sensor based on Fe3O4 functionalized graphene oxide (Fe3O4-APTES-GO). Fe3O4-APTES-GO was synthesized by a two-step process. First, Fe3O4 was modified by (3-aminopropyl) triethoxysilane to introduce amino groups on the surface of graphene oxide(GO). Second, APTES-Fe3O4 was reacted with the carboxylic groups of GO by an activating...
This study was performed to further reveal the reaction mechanism and kinetic characters of UV-Fenton process for the degradation of formaldehyde (HCHO) in a batch photochemical reactor. The concentration changes of hydrogen peroxide, ferrous ions, and the intermediate products were analyzed. Through comparing the rate constants (k) of H2O2 consumption and the variation of Fe2+ concentration in the...
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