Double-Shelled Mn2O3 Hollow Spheres and Their Application in Water Treatment

✍ Scribed by Jie Cao; Yongchun Zhu; Liang Shi; Lingling Zhu; Keyan Bao; Shuzhen Liu; Yitai Qian

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 405 KB
• Volume: 2010
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/ejic.200901116

✦ Synopsis

Abstract

Double‐shelled Mn~2~O~3~ hollow spheres have been successfully prepared on a large scale by using core‐shell‐structured MnCO~3~ microspheres as sacrificial templates. This new method is based on an inward oxidation/etching treatment and sequential heat treatment in air. The as‐prepared double‐shelled Mn~2~O~3~ hollow spheres consist of small nanoparticles with a size of ca. 50 nm, and there are many nanopores among the particles. As the double‐shelled Mn~2~O~3~ hollow spheres were employed in water treatment, they could remove about 86 % of phenol without any other additives.