활성탄에 의한 헤테로고리화합물의 흡착에 미치는 관능기의 영향

김달한; 손진언; 이성식

HWAHAK KONGHAK, Vol.33, No.6, 669-674, December, 1995

Export Citation

활성탄에 의한 헤테로고리화합물의 흡착에 미치는 관능기의 영향

Effect of Functional Groups of Hetero Cyclic Compound on Adsorption with Activated Carbon

김달한, 손진언, 이성식

초록

활성탄에 의한 수용액중의 헤테로고리화합물의 흡착은 Freundlich형 등온식으로 설명할 수 있으며, Freundlich 상수의 곱[k n]은 끓는점(Tb)에 대하여 직선적으로 증가하였다. 포화흡착량(q_s)은 하메트상수(σ), 유발상수(σ^*) 및 극성상수(F)에 대하여 직선적으로 감소하였으며, 흡착속도는 표면확산이 지배적이었다. 표면확산계수(D_s)와 평형흡착량(q_s)과의 관계는 D_s=D_so.exp[a.q_e]로 표시할 수 있었으며, 관능기 종류 및 위치에 따라 속도인자 D_so와 a를 각각 구하여 Table 5에 제시하였다.

The isotherm of heterocyclic compound in aqueous solution onto activated carbon was correlated with Freundlich type equation, and Freundlich product [k n] appeared linear relationship with boiling point(T_b). Saturated adsorbed amount(q_s) decreased with hammett constant(σ), inductive constant(σ*) and polar constant(F). Surface diffusion was considered to be dominant. Relationship between surface diffusivity(D_s) and equilibrium adsorbed amount(q_e) was D_s=D_s0exp[a q_e]. Kinetic parameter D_s0 and a was shown Table 5 for kind and position of functional groups.

[References]

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[1] Akita S, Takeuchi H, J. Chem. Eng. Jpn., 26(3), 237 (1993)

[2] Pahari KP, Sharma MM, Ind. Eng. Chem. Res., 30, 1880 (1991)

[3] Radeka KH, Ger. Patent DD, 212028 (1984)

[4] Radeka KH, Chem. Abstr., 102, 100325 (1985)

[5] Nikolenko NV, Nechaev EA, Pavlyuchik GS, Kolloidn. Zh., 48(4), 823 (1986)

[6] Nikolenko NV, Nechaev EA, Pavlyuchik GS, Chem. Abstr., 105, 177839 (1986)

[7] Fox P, Suiden MT, Pfeffer JT, J. WPCF, 60(1), 86 (1988)

[8] Dollimor D, Heal GR, J. Appl. Chem., 14, 109 (1964)

[9] Hansch C, Leo A, "Substituent Constants for Correlation Analysis in Chemistry and Biology," John-Wiley & Sons, 49 (1979)

[10] Suzuki M, Kawazoe K, J. Chem. Eng. Jpn., 8(5), 379 (1975)

[11] Sohn JE, Proceeding for 7th Annual Meeting of Japan Adsorption Society, 169 (1993)

[12] Isaacs NS, "Physical Organic Chemistry," Longman Scientific & Technical, 137 (1987)

[13] Suzuki M, Kawazoe K, J. Chem. Eng. Jpn., 7(5), 346 (1974)

[14] Suzuki M, Kawazoe K, Seisan-Kenkyu, 26(7), 275 (1975)

[15] Suzuki M, Kawazoe K, SEisan-Kenkyu, 26(8), 296 (1975)

[16] Miyahara M, Okazaki M, J. Chem. Eng. Jpn., 26(5), 510 (1993)