摘要
采用十六烷基胍改性凹凸棒土对甲基橙废水进行脱色处理,考察了吸附时间、吸附剂用量和染料浓度等因素对脱色效果的影响。结果表明,十六烷基胍改性凹凸棒土对甲基橙废水具有很好的脱色性能,其对甲基橙废水脱色率达98%以上,与原凹凸棒土相比有显著提高。平衡吸附量qe与平衡浓度ρe之间关系符合Langmu ir等温吸附方程。吸附热值小于40 kJ/mol,表观表现为物理吸附。
The adsorption capability of 16 alkyl-guanidine modified attapulgite for methyl orange was studied.The effects of adsorption time,the amount of adsorbent,and the concentration of the dyes were also studied.The results showed that the adsorption capacity of the modified attapulgite clay was improved obviously,and the decolorization rate of methyl orange simulated wastewater dyes was higher than 98%.The relationship between adsorpting capacity（qe） and equilibrum mass concentration（ρe） was in accordance with the isothermal adsorption Langmuir equations.The adsorption heat is less than 40 kJ/mol.The adsorption exhibits a physical adsorption.
出处
《应用化学》
CAS
CSCD
北大核心
2011年第7期809-814,共6页
Chinese Journal of Applied Chemistry
基金
江苏省教育厅自然科学基金(JH08-32)资助项目
江苏省低维材料化学重点建设实验室开放研究基金(JSKC09060)资助项目
江苏省高校科研成果产业化推进项目(JH08038)
关键词
十六烷基胍
改性
凹凸棒土
甲基橙
吸附
hexadecylguanidine
modification
attapulgite
methyl organge
adsorption
