- 著者
-
Eri Yamamoto
Jun Kobayashi
Keiko Kanamaru
Toshiaki Miura
Fujio Watanabe
Noriyuki Kobayashi
Masanobu Hasatani
- 出版者
- 公益社団法人 化学工学会
- 雑誌
- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN (ISSN:00219592)
- 巻号頁・発行日
- vol.36, no.3, pp.348-352, 2003 (Released:2003-11-15)
- 参考文献数
- 10
- 被引用文献数
-
5
6
A new hydrophilic method for achieving a high-performance adsorbent by impregnating silica into pores of activated carbon has been proposed. In the process, silica-gel was synthesized in the pores of activated carbon after inserting a sodium silicate solution into the pores. Three types of activated carbon were tested to produce hydrophilic activated carbon and to investigate the hydrophilicity by measuring the adsorption isotherms of water vapor and pore structure characteristics. The proposed method worked effectively for adding hydrophilicity to activated carbon, since all of adsorption isotherms of the material treated with this method shifted to a lower region of water vapor pressure than that of the raw material. The shift to a lower relative pressure of adsorption isotherm was maximum when the concentration of sodium silicate solution was 1 mass%.