J. Technology and Education, Vol.26, No.1, pp.23-26 (2019)

研究論文

磁性ヤシガラ活性炭によるマラカイトグリーンの吸着

石川　将成，下古谷　博司^*

鈴鹿工業高等専門学校・材料工学科（〒510-0294　三重県鈴鹿市白子町官有地）

*E-mail: hshimo@mse.suzuka-ct.ac.jp

 

Adsorption of Malachite Green from an Aqueous Solution onto

Magnetic Activated Carbon

 

Masanari ISHIKAWA and Hiroshi SHIMOFURUYA

Department of Materials Science and Engineering, National Institute of Technology, Suzuka College.

Shiroko-cho, Suzuka-shi, Mie 5100294, Japan

 

(Received April 17, 2019; Accepted May 27, 2019)

 

Abstract

In the present investigation, magnetic activated carbon (MAC) was prepared from coconut activated carbon, and the adsorption potential of malachite green (MG) from an aqueous solution was explored.  The effects of pH, adsorbent dosage, and agitation time on MG adsorption were studied in batch experiments.  Results showed the maximum adsorption of MG on MAC at pH 3.  Moreover, the adsorption of MG increased with increasing MAC dosage, and constant adsorption was observed at dosages of 0.2g and higher. Additionally, the adsorption of MG on MAC occurred in a comparatively short time, and MG was adsorbed in 20 min of agitation time.  The maximum adsorption capacity of 37mg/g for MAC was obtained from the Langmuir isotherm.   Our results showed that MAC was an effective adsorbent of MG from an aqueous solution.

Keywords: Adsorption, Magnetic activated carbon, Malachite green