生物碳负载Zn/Co-LDH复合材料的制备及对日落黄吸附性能的研究  

Preparation of Biochar-Loaded Zn/Co-LDH and Its Adsorption Performance on Sunset Yellow

作　　者：王泽华 刘晨省 徐虎祥 张珂[1] 牛俊玲[1] 崔节虎[1] WANG Zehua;LIU Chensheng;XU Huxiang;ZHANG Ke;NIU Junling;CUI Jiehu(School of Civil Engineering,Zhengzhou University of Aeronautics,Zhengzhou 450046,China)

机构地区：[1]郑州航空工业管理学院土木建筑学院,河南郑州450046

出　　处：《河南科技》2022年第24期69-72,共4页Henan Science and Technology

基　　金：国家自然科学基金(21771165);河南省科技攻关项目(212102310512)。

摘　　要：以生物炭作为类水滑石的载体,采用水热法制备出生物炭锌钴水滑石复合材料(BC@LDH),并研究其对水中阴离子染料日落黄的去除效果。研究结果表明,在BC@LDH投加量为1.5 g/L,日落黄初始浓度为30 mg/L,溶液pH值为6.3±0.1,室温为20℃条件下,吸附在30 min达到吸附平衡,去除率为95%。BC@LDH对日落黄的吸附动力学过程符合准二级动力学模型,等温吸附过程符合Langmuir模型,为单分子层化学吸附。Using biochar as a hydrotalcite-like carrier, biochar-zinc-cobalt hydrotalcite composites(BC@LDH) were prepared by hydrothermal method, and their removal effect on the anionic dye sunset yellow in water was investigated. The research results show that when the dosage of BC@LDH is 1.5 g/L, the initial concentration of sunset yellow is 30 mg/L, the pH of the solution is 6.3±0.1, and the room temperature is 20 ℃, the adsorption reaches the adsorption equilibrium in 30 min, and the removal rate is 95%. The kinetic process of adsorption of BC@LDHon sunset yellow was in accordance with the quasi-secondary kinetic model,and the isothermal adsorption process was in accordance with the Langmuir model for single-molecule layer chemisorption.

关 键 词：Zn/Co-LDH 日落黄 生物炭 花生壳 

分 类 号：X703[环境科学与工程—环境工程]