标题：Core-shell Prussian blue analogues@ poly(m-phenylenediamine) as efficient peroxymonosulfate activators for degradation of Rhodamine B with reduced metal leaching
作者： Zeng, L (Zeng, Liang); Xiao, L (Xiao, Ling); Shi, XW (Shi, Xiaowen); Wei, MY (Wei, Mingyu); Cao, JY (Cao, Jinying); Long, YK (Long, Yangke)
来源出版物：JOURNAL OF COLLOID AND INTERFACE SCIENCE 卷：534 期： 页码：586-594 DOI：10.1016/j.jcis.2018.09.074 出版年：JAN 15 2019
摘要： Herein, Prussian blue analogues@poly(m-phenylenediamine) nanoparticles (PBA@PmPDs) with well-defined core-shell structure were synthesized. The successful coating of poly(m-phenylenediamine) (PmPD) on the surface of FeyCo3-y [Co(CN)(6)](2) (Fe-Co-Co PBA) was confirmed by SEM, TEM, XRD, TGA, FT-IR and XPS. The catalytic performance of Fe-Co-Co PBA@PmPDs was evaluated by activation of peroxymonosulfate (PMS) for degradation of Rhodamine B (RhB), the effects of different influence factors on the RhB degradation efficiency were investigated, including PMS concentration, temperature, initial solution pH, and co-existing inorganic salts. Cobalt ions leaching and stability of the catalysts were studied, Co ions concentration dissolved into the solution from the solid catalysts at 60 min is reduced by half after the Fe-Co-Co PBA is coated with PmPDs. The RhB removal efficiency is higher than 90% even after four cycles and the nanoparticles still maintain the core-shell structure, indicating that Fe-Co-Co PBA@PmPDs is stabile and reusable. Radical quenching experiments and electron paramagnetic resonance spectra indicate that both SO4 center dot- and (OH)-O-center dot are generated during the PMS activation process and SO4 center dot- is the dominant reactive species. In virtue of its superior catalytic activity, excellent reusability and stability, low metallic ion leaching, Fe-Co-Co PBA@PmPDs could be a promising catalyst for the remediation of contaminated water.
作者关键词： Prussian blue analogues; Core-shell; Degradation; Peroxymonosulfate; Metal leaching
通讯作者地址：Xiao, L (reprint author), Wuhan Univ, Key Lab Biomass Resource Chem & Environm Biotechn, Sch Resource & Environm Sci, Wuhan 430072, Hubei, Peoples R China.
地址： [Zeng, Liang; Xiao, Ling; Shi, Xiaowen; Wei, Mingyu; Cao, Jinying; Long, Yangke] Wuhan Univ, Key Lab Biomass Resource Chem & Environm Biotechn, Sch Resource & Environm Sci, Wuhan 430072, Hubei, Peoples R China.
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