文献类型：期刊文献

英文题名：Coactivation of Hydrogen Peroxide Using Pyrogenic Carbon and Magnetite for Sustainable Oxidation of Organic Pollutants

作者：Gui, Yao[1];Guo, Sen[1];Lv, Ying[1];Li, Huiming[1];Zhang, Junhuan[1];Li, Jianfa[1]

机构：[1]Shaoxing Univ, Coll Chem & Chem Engn, Shaoxing 312000, Zhejiang, Peoples R China

年份：2024

卷号：9

期号：6

起止页码：6595

外文期刊名：ACS OMEGA

收录：SCI-EXPANDED(收录号：WOS:001159013100001)、、Scopus(收录号：2-s2.0-85184802421)、WOS

基金：This work was supported by the National Natural Science Foundation of China (No. 21777103).

语种：英文

外文摘要：Pyrogenic carbon and magnetite (Fe3O4) were mixed together for the activation of hydrogen peroxide (H2O2), aiming to enhance the oxidation of refractory pollutants in a sustainable way. The experimental results indicated that the straw-derived carbon obtained by pyrolysis at 500-800 C-degrees was efficient on coactivation of H2O2, and the most efficient one was that prepared at 700 C-degrees (C700) featured with abundant defects. Specifically, the reaction rate constant (k obs) for removal of an antibiotic ciprofloxacin in the coactivation system (C700/Fe3O4/H2O2) is 12.5 times that in the magnetite-catalyzed system (Fe3O4/H2O2). The faster pollutant oxidation is attributed to the sustainable production of center dot OH in the coactivation process, in which the carbon facilitated decomposition of H2O2 and regeneration of Fe(II). Besides the enhanced H2O2 utilization in the coactivation process, the leaching of iron was controlled within the concentration limit in drinking water (0.3 mg center dot L-1) set by the World Health Organization.