摘要
研究了Cu基类水滑石(Cu/HTLCs)及其焙烧产物(LDO)对酸性红-88(AR-88)的吸附效果。考察了吸附剂用量、溶液初始pH值、初始浓度以及吸附温度对吸附AR-88的影响,并研究了AR-88在LDO上的等温吸附曲线。结果表明,低温焙烧的Cu_4AlLDO-300对AR-88有良好的吸附效果,在40℃、pH=1~7范围内,1.0g·L^(-1)LDO对浓度为100mg·L^(-1)的AR-88去除率达100%。LDO对AR-88的吸附符合Freundlich等温吸附方程。
The adsorption effect of Cu/HTLCs and its roasting products（LDO） on acid red-88（AR-88）were studied. The effects of adsorbent dosage, initial pH, initial concentration and adsorption temperature were investigated in detail, and the adsorption isotherms curve of AR-88 on LDO was fitted. The results show that the Cu4 Al-LDO-300 roasting at low temperature had a good adsorption effect on AR-88,and the removal rate was100% under the condition of 40℃,pH = 1~7,the dosage of LDO was 1.0 g · L^-1 and the initial concentration of AR-88 was 100 mg · L ^-1. The equilibrium isotherm of uptake of AR-88 by LDO was well fitted to the Freundlich equation.
出处
《邵阳学院学报（自然科学版）》
2017年第5期65-72,共8页
Journal of Shaoyang University：Natural Science Edition
基金
湖南省教育厅重点项目(15A172)
关键词
Cu基类水滑石
吸附
酸性红-88
Cu based hydrotalcite-like compounds
adsorption
Acid red-88 （ AR-88 ）
