티타니아 고정 활성 탄소종이 전극을 이용한 축전식 이온 제거

김천중; 서곤; Chun-Joong Kim; Gon Seo

Korean Chemical Engineering Research, Vol.42, No.5, 532-537, October, 2004

Export Citation

티타니아 고정 활성 탄소종이 전극을 이용한 축전식 이온 제거

Capacitive Deionization by using Titania-incorporated Activated Carbon Paper

김천중, 서곤 ^†

전남대학교 응용화학공학부, 500-757 광주시 북구 용봉동 300

Chun-Joong Kim, and Gon Seo^†

Department of Applied Chemical Engineering, Chonnam National University, 300, Yongbong-dong, Buk-gu, Gwangju 500-757, Korea

E-mail:

초록

티타늄 부톡사이드와 반응시켜 티타니아를 표면에 고정한 활성 탄소종이 전극에서 여러 전해질의 축전식 이온제거 현상을 조사하였다. 티타늄은 Ti⁴⁺상태로 활성 탄소종이에 덩어리지지 않고 고정되었으며, 고정량은 티타니아로 2.5 wt% 였다. 티타늄 고정으로 NaCl 전해질의 전기장 흡착량은 네 배 정도 많아져서, 활성 탄소종이의 축전식 이온제거 성능이 크게 향상되었다. 전해질 종류, 온도, 전위차를 달리하여 측정한 물리 및 전기장 흡착량으로부터 티타니아가 고정된 활성 탄소종이의 축전식 이온제거 특성을 고찰하였다.

Titania was incorporated on activated carbon paper by reacting titanium butoxide with it. The oxidation state of titanium was +4 and its incorporated amount was 2.5 wt% as titania. The titania incorporation on the paper increased its electric field adsorption of NaCl by four times, resulting in a significant enhancement of its capacitive deionization performance. The feasibility of the titania-incorporated activated carbon paper as a capacitive deionization electrode was discussed based on its physical and electric field adsorptions of various electrolytes measured at different temperatures and electric potential differences.

Keywords:Capacitive Deionization;Activated Carbon Paper;Titania Incoporation;Electrolyte

[References]

Wang JY, Wang SC, Jin MR, Desalination, 132(1-3), 349 (2000)
Yang KL, Ying TY, Yiacoumi S, Tsouris C, Vittoratos ES, Langmuir, 17(6), 1961 (2001)
Farmer JC, Fix DV, Mack GV, Pekala RW, Poco JF, J. Electrochem. Soc., 143(1), 159 (1996)
Boehm HP, Carbon, 32(5), 759 (1994)
Ryoo MW, Seo G, Water Res., 37, 1527 (2003)
Ryoo MW, Kim JH, Seo G, J. Colloid Interface Sci., 264(2), 414 (2003)
Kumar PM, Badrinarayanan S, Sastry M, Thin Solid Films, 358(1-2), 122 (2000)
Wagner CD, Riggs WM, Davis LE, Moulder JF, Muilenberg GE, "Handbook of X-ray Photoelectron Spectroscopy", Perkin-Elmer Corp (1979)

[Related Articles]

[1] Wang JY, Wang SC, Jin MR, Desalination, 132(1-3), 349 (2000)

[2] Yang KL, Ying TY, Yiacoumi S, Tsouris C, Vittoratos ES, Langmuir, 17(6), 1961 (2001)

[3] Farmer JC, Fix DV, Mack GV, Pekala RW, Poco JF, J. Electrochem. Soc., 143(1), 159 (1996)

[4] Boehm HP, Carbon, 32(5), 759 (1994)

[5] Ryoo MW, Seo G, Water Res., 37, 1527 (2003)

[6] Ryoo MW, Kim JH, Seo G, J. Colloid Interface Sci., 264(2), 414 (2003)

[7] Kumar PM, Badrinarayanan S, Sastry M, Thin Solid Films, 358(1-2), 122 (2000)

[8] Wagner CD, Riggs WM, Davis LE, Moulder JF, Muilenberg GE, "Handbook of X-ray Photoelectron Spectroscopy", Perkin-Elmer Corp (1979)