Green one-pot preparation of -Fe2O3@carboxyl-functionalized yeast composite with high adsorption and catalysis properties for removal of methylene blue

被引:19
作者
Wang, Ying [1 ]
Zhang, Wei [3 ]
Qin, Mian [2 ]
Zhao, Maojun [2 ]
Zhang, Yunsong [2 ]
机构
[1] Sichuan Agr Univ, Coll Water Conservancy & Hydropower Engn, Yaan 625014, Peoples R China
[2] Sichuan Agr Univ, Coll Sci, Yaan 625014, Peoples R China
[3] Ben Gurion Univ Negev, Zuckerberg Inst Water Res, Dept Desalinat & Water Treatment, Sede Boqer Campus, IL-8499000 Beer Sheva, Israel
基金
中国国家自然科学基金;
关键词
-Fe2O3; adsorption; oxidization; synergetic effect; yeast; AQUEOUS-SOLUTION; HIGH-PERFORMANCE; CARBON NANOTUBE; D-MANNOSE; DYE; MICROSPHERES; BIOSORPTION; BIOMASS; MECHANISM; KINETICS;
D O I
10.1002/sia.6370
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Herein, the -Fe2O3@carboxyl-functionalized yeast composite (-F@CFYC) was synthesized by direct oxidation of yeast with K2FeO4 and used as a novel adsorbent/heterogeneous Fenton catalyst for removal of methylene blue (MB). The obtained -F@CFYC was fully characterized by scanning electron microscopy, EDX, X-ray diffraction analysis, Fourier-transform infrared, thermogravimetry, and X-ray photoelectron spectroscopy, respectively, and the corresponding results showed that -Fe2O3 nanoparticles were successfully obtained and deposited on yeast surface, as well as more functional groups were introduced/exposed on yeast surface. Furthermore, various influence parameters (eg, contact time, initial pH, and MB concentration) on the adsorption/catalysis ability of -F@CFYC for MB have been investigated in detail under ambient conditions. As a result, owing to the synergetic effect of the loaded -Fe2O3 and the introduced/exposed functional groups on yeast surface, the as-obtained -F@CFYC exhibited high adsorption capacities and good catalysis degradation properties for MB.
引用
收藏
页码:311 / 320
页数:10
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