球状活性炭制备及其对DL-β-氨基异丁酸的吸附

doi:10.11962/1006-4990.2018-0586

Abstract

Abstract:

The adsorption capacity of phenolic resin-based spherical activated carbon（PFSAC） on DL-β-aminoisobutyric acid（DL-β-AIBA）and its feasibility as an oral medicinal coal for treating chronic renal failure（CRF） were investigated.A series of experiments were performed,including the experiment of the adsorption isotherms and the experiment of the adsorption rates and the adsorption rate for 3 h.Results showed that the adsorption of PFSAC on DL-β-AIBA belong to Langmuir adsorption,and the fitting rate of adsorption rate was in good agreement with the quasi-second-order kinetic equation.The pore volume of the phenolic PFSAC with a pore size of 1.0~1.8 nm has a good linear relationship with the adsorption capacity of DL-β-AIBA.And the adsorption rate of PFSAC to DL-β-AIBA for 3 h reached more than 58%.It showed that DL-β-AIBA can be adsorbed by PFSAC quickly and efficiently.

Key words: phenolic resin, spherical activated carbon, adsorption, DL-β-aminoisobutyric acid

CLC Number:

TQ0424.1

Liang Li,Liang Xiaoyi. Preparation of spherical activated carbon and its adsorption on DL-β-aminoisobutyric acid[J]. Inorganic Chemicals Industry, 2019, 51(9): 45-49.

Figures/Tables 10

References 22

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PFSAC	表观密度/ （g·cm^-3）	S_BET/ （m²·g^-1）	S_micro/ （m²·g^-1）	V_total/ （cm³·g^-1）	V_mirco/ （cm³·g^-1）	（V_mirco/V_total）/ %	V_{1.0~1.8 nm} / （cm³·g^-1）	D_aver/ nm
PFSAC-1	0.68	1 154	1 103	0.47	0.44	93.62	0.18	0.61
PFSAC-2	0.56	1 472	1 227	0.64	0.58	90.63	0.21	0.64
PFSAC-3	0.54	1 597	1 386	0.69	0.60	86.96	0.28	0.67
PFSAC-4	0.51	1 735	1 593	0.80	0.69	86.25	0.34	0.72
PFSAC-5	0.45	1 963	1 558	0.93	0.61	66.60	0.41	0.67

PFSAC	Langmuir			Freundlich
PFSAC	q_m/ （mg·g^-1）	K₁/ （L·mg^-1）	R₁²	n	K_f/ （mg·L^-1）	R₂²
PFSAC-1	6.21	0.406	0.993	3.44	2.10	0.92
PFSAC-2	6.51	0.419	0.992	4.32	2.35	0.94
PFSAC-3	7.15	0.473	0.990	2.64	2.61	0.93
PFSAC-4	7.56	0.527	0.989	3.42	2.78	0.92

PFSAC	准一级				准二级			内扩散
PFSAC	q_e,exp/ （mg·g^-1）	q_e,cal/ （mg·g^-1）	K₁/ h^-1	R₁²	q_e,cal/ （mg·g^-1）	K₂/ （g·mg^-1·h^-1）	R₂²	K_int/ （mg·g^-1·h^-0.5）	C/ （mg·g^-1）	R²
PFSAC-1	4.43	3.26	0.15	0.89	4.46	0.20	0.98	0.79	1.20	0.85
PFSAC-2	4.56	4.07	0.43	0.88	4.57	0.24	0.97	1.49	0.96	0.86
PFSAC-3	4.64	3.93	0.36	0.90	4.81	0.26	0.98	1.66	0.63	0.89
PFSAC-4	4.98	4.38	0.60	0.91	5.05	0.36	0.99	2.68	0.17	0.93

活性炭	吸附量/ （mg·g^-1）	吸附率/ %	活性炭	吸附量/ （mg·g^-1）	吸附率/ %
PFSAC-1	3.23	58.96	PFSAC-4	4.19	86.09
PFSAC-2	3.49	68.83	药用炭	2.22	44.31
PFSAC-3	3.68	72.45

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Inorganic Acid-Base-Salt Committee of CIESC

Preparation of spherical activated carbon and its adsorption on DL-β-aminoisobutyric acid

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