Methylene blue adsorption onto modified lignin from sugar cane bagasse
Methylene blue adsorption onto modified lignin from sugar cane bagasse
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DOI：
10.1590/s0100-46702007000400009
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发表时间：
2007-12
期刊：
影响因子：
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通讯作者：
N. Consolin-Filho;E. Venancio;Marcilene Ferrari Barriquello;A. Hechenleitner;E. Pineda
中科院分区：
文献类型：
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作者：
N. Consolin-Filho;E. Venancio;Marcilene Ferrari Barriquello;A. Hechenleitner;E. Pineda
研究了甘蔗渣网状甲酸木质素（RFL）对亚甲基蓝（MB）的吸附动力学和平衡。吸附过程符合Langmuir吸附模型，并受pH、温度和离子强度（μ）的影响。确定了获得较高吸附速率和吸附容量的条件。在pH = 5.8（乙酸-乙酸钠缓冲溶液）、50 ℃、离子强度为0.1时，吸附速度较快（12 h），吸附容量较高（34.20mg·g-1）。在温度（50 °C）控制和偶尔的机械搅拌下，需要1至10天达到平衡。
The adsorption kinetics and equilibrium of methylene blue (MB) onto reticulated formiclignin (RFL) from sugar cane bagasse was studied. The adsorption process is pH, temperature and ionicstrength (μ) dependent and obeys the Langmuir model. Conditions for higher adsorption rate andcapacity were determined. The faster adsorption (12 hours) and higher adsorption capacity (34.20mg.g -1 ) were observed at pH = 5.8 (acetic acid-sodium acetate aqueous buffer), 50 °C and 0.1 ionicstrength. Under temperature (50 °C) control and occasional mechanical stirring it took from 1 to 10days to reach the equilibrium.