One step solvothermal synthesis of functional hybrid γ-Fe2O3/carbon hollow spheres with superior capacities for heavy metal removal.
One-step hydrothermal method was developed to prepare hybrid γ-Fe2O3/carbon hollow spheres with a predominant orientation (111) plane of γ-Fe2O3 and rich oxygen-containing functional groups on carbon. The resulting functional hybrid exhibited extremely high adsorption capacities for toxic Pb(II) and Cr(VI) ions in solutions with easy magnetic separation. The ease of synthesis and low cost, coupled with the efficient and rapid removal of toxic heavy metal ions, make hybrid γ-Fe2O3/carbon hollow spheres an attractive adsorbent for the purification of waste and contaminated water.
Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
Hao-Jie
HJ
Cui
Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; College of Civil Engineering, Fuzhou University, Fuzhou 350108, China.
Jie-Kui
JK
Cai
Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
Huan
H
Zhao
College of Civil Engineering, Huaqiao University, No. 668, Jimei Road, Xiamen, Fujian 361020, China.
Baoling
B
Yuan
College of Civil Engineering, Fuzhou University, Fuzhou 350108, China.
Cuiling
C
Ai
Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China. Electronic address: mlfu@iue.ac.cn.
Ming-Lai
ML
Fu
D002244:Carbon / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D019216:Metals, Heavy / Q000302:isolation & purification*; D033362:Powder Diffraction; D012997:Solvents / Q000737:chemistry*
D005290:Ferric Compounds; D019216:Metals, Heavy; D012997:Solvents; C000499:ferric oxide; D002244:Carbon
Adsorption; Functional groups; Heavy metal; γ-Fe(2)O(3)/carbon hollow spheres