Citation: Xue Gang Chen, Shuang Shuang Lv, Ying Ye, Ji Peng Cheng, Su Hang Yin. Preparation and characterization of rice husk/ferrite composites[J]. Chinese Chemical Letters, ;2010, 21(1): 122-126. doi: 10.1016/j.cclet.2009.08.003 shu

Preparation and characterization of rice husk/ferrite composites

a Department of Ocean Science and Engineering, Zhejiang University, Hangzhou 310027, China;
b Zhejiang Institute of Geology & Mineral Resources, Hangzhou 310007, China;
c Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China

Received Date: 20 April 2009

Fund Project: This work was financial supported by National High Technology Research and Development (863) Program of China (No. 2007AA06Z128).

A novel ferrite composite using rice husk as substrate has been prepared via high temperature treatment under nitrogen atmosphere. The rice husk substrate consists of porous activated carbon and silica, where spinel ferrite particles with average diameter of 59 nm are distributed. The surface area of the composite is greater than 170 m² g^-1 and the bulk density is less than 0.6 g cm^-3. Inert atmosphere is indispensable for the synthesis of pure ferrite composites, while different preparation temperatures of above 600℃ result in composites with similar structures and morphologies. Due to the presence of ferrite particles, this novel composite shows enhanced adsorption ability for acid orange Ⅱ.
- Spinel ferrite,
- Rice husk,
- Composite materials,
- Catalysts,
- Adsorbent
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