Please wait a minute...
Acta Physico-Chimica Sinica  2008, Vol. 24 Issue (08): 1417-1424    DOI: 10.3866/PKU.WHXB20080816
Adsorption Mechanism of Bilirubin on Aminated Crosslinking Microspheres of PGMA
CHEN Zhi-Ping; GAO Bao-Jiao; YANG Xiao-Feng
Department of Chemical Engineering, North University of China, Taiyuan 030051, P.R.China
Download:   PDF(521KB) Export: BibTeX | EndNote (RIS)      

Abstract  The crosslinking microspheres of poly (glycidyl methacrylate) (PGMA) were modified chemically with aminating agents, hexanediamine and three kinds of multi-ethylene multi-amine. The effects of various factors, such as the chemical structures of the aminating agents, pH values of the medium, ionic strength, and temperature, on the adsorption property of the functional microsphers for bilirubin were examined. The adsorption mechanism of the aminated microspheres towards bilirubin was studied deeply. The experimental results showed that the aminated microspheres had strong adsorption ability for bilirubin and the adsorption capacity could reach 17.80 mg·g -1; the isotherm adsorption could be fitted by Freundlich equation satisfactorily. There were three acting forces between the aminated microspheres and bilirubin molecules, i.e., electrostatic, hydrogen bonding and hydrophobic interactions. Among them, the electrostatic interaction was dominative, and the latter two kinds exert cooperating action. As pH=6, there was the strongest electrostatic interaction between the aminated microspheres and bilirubin molecules, leading to the highest adsorption capacity. The higher ionic strength was disadvantageous to the electrostatic interaction, and salinity conduces to the weakening of the electrostatic interaction and the decreasing of the adsorption capacity. The rising of temperature was advantageous to the hydrophobic interaction, whereas unfavorable to hydrogen bonding, and the predominated one of themdominates the effect of temperature on the adsorption capacity. The adsorption ability of the aminated microspheres modified with hexanediamine was stronger than that of those aminated microspheres modified with multi-ethylene multi-amine owing to enhancement of the hydrophobic interaction and smaller steric hindrance which came fromlonger spacer arm.

Key wordsBilirubin      Poly(glycidyl methacrylate)      Amination      Electrostatic interaction      Adsorption     
Received: 12 December 2007      Published: 17 June 2008
MSC2000:  O647  
Corresponding Authors: GAO Bao-Jiao     E-mail:
Cite this article:

CHEN Zhi-Ping; GAO Bao-Jiao; YANG Xiao-Feng. Adsorption Mechanism of Bilirubin on Aminated Crosslinking Microspheres of PGMA. Acta Physico-Chimica Sinica, 2008, 24(08): 1417-1424.

URL:     OR

[1] WU Xuanjun, LI Lei, PENG Liang, WANG Yetong, CAI Weiquan. Effect of Coordinatively Unsaturated Metal Sites in Porous Aromatic Frameworks on Hydrogen Storage Capacity[J]. Acta Physico-Chimica Sinica, 2018, 34(3): 286-295.
[2] ZHANG Chen-Hui, ZHAO Xin, LEI Jin-Mei, MA Yue, DU Feng-Pei. Wettability of Triton X-100 on Wheat (Triticum aestivum) Leaf Surfaces with Respect to Developmental Changes[J]. Acta Physico-Chimica Sinica, 2017, 33(9): 1846-1854.
[3] YAO Chan, LI Guo-Yan, XU Yan-Hong. Carboxyl-Enriched Conjugated Microporous Polymers: Impact of Building Blocks on Porosity and Gas Adsorption[J]. Acta Physico-Chimica Sinica, 2017, 33(9): 1898-1904.
[4] MO Zhou-Sheng, QIN Yu-Cai, ZHANG Xiao-Tong, DUAN Lin-Hai, SONG Li-Juan. Influencing Mechanism of Cyclohexene on Thiophene Adsorption over CuY Zeolites[J]. Acta Physico-Chimica Sinica, 2017, 33(6): 1236-1241.
[5] DAI Wei-Guo, HE Dan-Nong. Selective Photoelectrochemical Oxidation of Chiral Ibuprofen Enantiomers[J]. Acta Physico-Chimica Sinica, 2017, 33(5): 960-967.
[6] HE Lei, ZHANG Xiang-Qian, LU An-Hui. Two-Dimensional Carbon-Based Porous Materials: Synthesis and Applications[J]. Acta Physico-Chimica Sinica, 2017, 33(4): 709-728.
[7] WANG Xiao-Wen, LI Lei, WANG Chang-Sheng. A Scheme for Rapid Simulation of Anion-π Interactions Involving Halide Anions and Substituted Benzenes[J]. Acta Physico-Chimica Sinica, 2017, 33(4): 755-762.
[8] CHENG Fang, WANG Han-Qi, XU Kuang, HE Wei. Preparation and Characterization of Dithiocarbamate Based Carbohydrate Chips[J]. Acta Physico-Chimica Sinica, 2017, 33(2): 426-434.
[9] ZHANG Tao-Na, XU Xue-Wen, DONG Liang, TAN Zhao-Yi, LIU Chun-Li. Molecular Dynamics Simulations of Uranyl Species Adsorption and Diffusion Behavior on Pyrophyllite at Different Temperatures[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2013-2021.
[10] CHEN Jun-Jun, SHI Cheng-Wu, ZHANG Zheng-Guo, XIAO Guan-Nan, SHAO Zhang-Peng, LI Nan-Nan. 4.81%-Efficiency Solid-State Quantum-Dot Sensitized Solar Cells Based on Compact PbS Quantum-Dot Thin Films and TiO2 Nanorod Arrays[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2029-2034.
[11] ZHANG Shao-Zheng, LIU Jia, XIE Yan, LU Yin-Ji, LI Lin, Lü Liang, YANG Jian-Hui, WEI Shi-Hao. First-Principle Study of Hydrogen Evolution Activity for Two-dimensional M2XO2-2x(OH)2x (M=Ti, V; X=C, N)[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2022-2028.
[12] LI Yan-Ting, LIU Xin-Min, TIAN Rui, DING Wu-Quan, XIU Wei-Ning, TANG Ling-Ling, ZHANG Jing, LI Hang. An Approach to Estimate the Activation Energy of Cation Exchange Adsorption[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 1998-2003.
[13] LI Kui, ZHAO Yao-Lin, DENG Jia, HE Chao-Hui, DING Shu-Jiang, SHI Wei-Qun. Adsorption of Radioiodine on Cu2O Surfaces: a First-Principles Density Functional Study[J]. Acta Physico-Chimica Sinica, 2016, 32(9): 2264-2270.
[14] XING Lei, JIAO Li-Ying. Recent Advances in the Chemical Doping of Two-Dimensional Molybdenum Disulfide[J]. Acta Physico-Chimica Sinica, 2016, 32(9): 2133-2145.
[15] JING Peng-Fei, LIU Hui-Jun, ZHANG Qin, HU Sheng-Yong, LEI Lan-Lin, FENG Zhi-Yuan. Kinetics and Thermodynamics of Adsorption of Benzil-Bridged β-Cyclodextrin on Uranium(VI)[J]. Acta Physico-Chimica Sinica, 2016, 32(8): 1933-1940.