云南化工2025，Vol.52Issue(4)：43-47,5.DOI:10.3969/j.issn.1004-275X.2025.04.10
油樟叶渣活性炭对亚甲基蓝的吸附性能研究
Adsorption Performance of Cinnamomum longipaniculatum Activated Carbon toward Methylene blue
摘要
Abstract
By using activated carbon from Cinnamomum longipaniculatum leaf residue to adsorb methylene blue in water,the effects of the dosage of activated carbon,adsorption time,temperature and pH on the adsorption performance were studied.Fourier transform infrared spectroscopy a-nalysis(FTIR)and specific surface area analyzer(BET)were used to characterize the activated carbon.The results showed that adsorption per-formance was improved with increase in the amount of activated carbon,andthen tended to stabilize at a dosage of 400 mgwith a removal rate of 99.6%.Adsorption performance increased with adsorption time,and methylene blue was basically100%removed after20 h.The highest remov-al rate and adsorption capacity were acquired at 45℃.The adsorption performance rose with increased pH within the range of 2-8,and then dropped after pH=10.The adsorption kinetics followed a second-order kinetic model,indicating that the adsorption rate was mainly determined by chemical adsorption,and Langmuir and Freundlich fitted the adsorption isotherm well,showing that the adsorption was multi molecular layer non-uniform phase adsorption.关键词
油樟叶渣/活性炭/亚甲基蓝/吸附Key words
Cinnamomum Longipaniculatum Leaf Residue/Activated Carbon/Methylene Blue/Adsorption Performance分类
化学工程引用本文复制引用
阳亿元,周鹏,王永强,梁祝..油樟叶渣活性炭对亚甲基蓝的吸附性能研究[J].云南化工,2025,52(4):43-47,5.基金项目
香料植物资源开发与利用四川省高校重点实验室开放基金项目(21XLY01) （21XLY01）
四川省省级大创项目(S202110641087) （S202110641087）
四川省省级大创项目(S202310641088). （S202310641088）
