摘要
以蒙脱石粘土矿物和葡萄糖为原料,通过水热反应一步合成了蒙脱石/水热碳复合材料(Mt/C),研究了pH值,Cr(Ⅵ)的初始浓度及Mt/C用量对Mt/C去除Cr(Ⅵ)的影响,并采用响应曲面法对Cr(Ⅵ)的去除条件进行了优化。结果表明:Cr(Ⅵ)的去除率随着溶液pH值和Cr(Ⅵ)初始浓度的增大而减小,随着Mt/C用量的增大而增大,当Mt/C用量为1.6 g/L,pH为3,Cr(Ⅵ)浓度为15 mg/L时,Mt/C对Cr(Ⅵ)去除率为98.57%,与模型理论预测值接近。
Montmorillonite/hydrothermal carbon composite(Mt/C)was synthesized from montmorillonite and glucose by hydrothermal reaction.The removal conditions were optimized by response surface methodology,and the effects of the Cr(Ⅵ)solution concentration,Mt/C dosage and pH on Cr(Ⅵ)removal were investigated.The results demonstrated that removal efficiencies of Cr(Ⅵ)decreased with the increase of pH and initial concentration of Cr(Ⅵ),and increased with the increase of dosage of Mt/C.The optimal conditions for removing Cr(Ⅵ)by Mt/C were as follows:pH of 3,Cr(Ⅵ)concentration of 15 mg/L,and Mt/C dosage of 1.6 g/L.Under the optimal conditions,the removal efficiency of Cr(Ⅵ)by Mt/C was 98.57%,close to the model predicted value.
作者
赵阿娟
曾维爱
蔡海林
谢鹏飞
翟争光
朱海峰
丁春霞
文志勇
ZHAO A-juan;ZENG Wei-ai;CAI Hai-lin;XIE Peng-fei;ZHAI Zheng-guang;ZHU Hai-feng;DING Chun-xia;WEN Zhi-yong(Changsha Tobacco Company of Hunan Province,Hunan Changsha 410011;College of Chemical and Material Science,Huan Agricultural University,Hunan Changsha 410128,China)
出处
《广州化工》
CAS
2020年第24期84-87,93,共5页
GuangZhou Chemical Industry
基金
长沙烟区烟叶质量安全风险控制点分析研究与应用(CYKJ2017-01)
黄茶提取物对卷烟风味的影响(14C0563)。
作者简介
第一作者:赵阿娟(1979-),女,博士,主要从事烟叶质量管控与研究工作;通讯作者:丁春霞(1977-),女,博士,主要从事烟草质量安全及环境污染修复治理。
