磁性β-环糊精/淀粉复合微球对甲基橙的吸附
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摘要
以自制的磁性β-环糊精/淀粉对甲基橙进行吸附,探究吸附剂用量、温度、溶液初始浓度、吸附时间和转速等因素对吸附量的影响。结果表明,随着吸附时间延长,吸附速率增大,30min时可达到较佳吸附效果;随着温度的升高,吸附速率增大,温度50℃时为最优;随甲基橙初始浓度的增大吸附量呈现出先增大再减小而后趋平的变化趋势。转速的升高和微球吸附剂用量的增多有利于吸附,在实际应用时还应考虑成本等因素选择合适的吸附条件。
The adsorption of helianthin by using self-made magnetic beta-cyclodextrin/starch as adsorbent was studied. The effects of dosage of adsorbent,temperature,initial concentration of solution,adsorption time,and rotational speed on adsorption capacity were investigated. The results showed that the adsorption rate increased with the extension of adsorption time,and reached a better adsorption effect in 30 minutes. With the increase of temperature,the adsorption rate increased,and the optimum temperature was 50℃. With the increase of initial concentration of helianthin,the adsorption capacity increased first,then decreased and then flattened. The increase of rotational speed and the dosage of microsphere adsorbent were beneficial to the adsorption,and the suitable adsorption conditions should be selected considering the cost and other factors in practical application.
The adsorption of helianthin by using self-made magnetic beta-cyclodextrin/starch as adsorbent was studied. The effects of dosage of adsorbent,temperature,initial concentration of solution,adsorption time,and rotational speed on adsorption capacity were investigated. The results showed that the adsorption rate increased with the extension of adsorption time,and reached a better adsorption effect in 30 minutes. With the increase of temperature,the adsorption rate increased,and the optimum temperature was 50℃. With the increase of initial concentration of helianthin,the adsorption capacity increased first,then decreased and then flattened. The increase of rotational speed and the dosage of microsphere adsorbent were beneficial to the adsorption,and the suitable adsorption conditions should be selected considering the cost and other factors in practical application.
引文
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[7] 邓文婷,余丽丽,马敏,等. β-环糊精微球的制备及其对α-萘酚和3,5-二硝基水杨酸吸附性能的研究[J].应用化工,2013,42(09):1662-1666,1671.
[8] 陈晴川. 环糊精聚合物微球及球形聚电解质刷选择性吸附苯酚和重金属离子的研究[D].上海:华东理工大学,2013.
[2] 李凯斌,沈一丁,费贵强,等.阴离子β-环糊精/Fe3O4磁性微球对Cu2+的吸附[J].化工学报,2014,65(06):2148-2155.
[3] 石启英,王书民,李凯斌,等.阴离子β-CD磁性微球吸附Zn2+影响因素的探讨[J].工业水处理,2015,35(03):22-25.
[4] 石启英,王书民,刘彦峰,等.阴离子β-CD磁性微球吸附铜离子的工艺优化[J].化工新型材料,2014,42(10):186-188,191.
[5] 刘叶,张毅,张昊.多孔淀粉微球对印染废水的处理应用[J].天津纺织科技,2017(06):37-40.
[6] 张常虎.淀粉基絮凝剂的制备及其对污水中Pb2+的去除研究[J].化工新型材料,2017,45(07):161-163,167.
[7] 邓文婷,余丽丽,马敏,等. β-环糊精微球的制备及其对α-萘酚和3,5-二硝基水杨酸吸附性能的研究[J].应用化工,2013,42(09):1662-1666,1671.
[8] 陈晴川. 环糊精聚合物微球及球形聚电解质刷选择性吸附苯酚和重金属离子的研究[D].上海:华东理工大学,2013.