Carbon Letters

, Volume 29, Issue 1, pp 89–97 | Cite as

Effects of ultrasonic surface treatment on rice husk carbon

  • Kwang Ho Lee
  • Jeong Seok OhEmail author
Original Article


In this study, the different effects of ultrasonic surface treatment on rice husk carbon (RHC) were studied. The RHC was treated by ultrasound in water, silane, and polyphosphoric acid. Particle size, chemical changes of the surface, dispersion, and surface area were all investigated. The ultrasonic treatment in acid increased the hydrophilicity of RHC. The ultrasonic treatment in silane produced silanol having amphiphilic property. The surface treatment of RHC in a water and acid medium with ultrasound increased the surface area and pore volume of RHC. Therefore, it is expected that the ultrasonically treated RHC as a biofiller is an effective substitute to commercial filler. This would have a positive effect both economically and environmentally.


Rice husk carbon (RHC) Ultrasound Surface treatment Biofiller Carbonization 



This work is the result of a study on the Perceived Material Development Fund (N0002593) and is supported by the Ministry of Trade, Industry and Energy.


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Copyright information

© Korean Carbon Society 2019

Authors and Affiliations

  1. 1.Department of Materials Engineering and Convergence Technology, Engineering Research InstituteGyeongsang National UniversityJinjuSouth Korea

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