无机盐工业 ›› 2023, Vol. 55 ›› Issue (9): 66-74.doi: 10.19964/j.issn.1006-4990.2023-0176
王梦迪(), 罗瑾, 吴巍, 周靖辉, 王静, 孙彦民, 于海斌
收稿日期:
2023-03-29
出版日期:
2023-09-10
发布日期:
2023-09-19
作者简介:
王梦迪(1990— ),女,硕士,主要研究方向为无机粉体材料的制备及性能研究;E-mail:wangmd12@cnooc.com.cn。
WANG Mengdi(), LUO Jin, WU Wei, ZHOU Jinghui, WANG Jing, SUN Yanmin, YU Haibin
Received:
2023-03-29
Published:
2023-09-10
Online:
2023-09-19
摘要:
以硫酸铝为铝源、碳酸氢铵为沉淀剂,采用一种高通量撞击流微反应器制备拟薄水铝石,经600 ℃焙烧4 h后得到γ-Al2O3。利用傅里叶红外光谱、X射线衍射仪、热重-差热分析仪、场发射扫描电子显微镜、透射电子显微镜、比表面积与孔隙度分析仪、紫外分光光度计和Zeta电位分析仪对制备的γ-Al2O3进行了表征分析。研究了不同方式制备的γ-Al2O3对甲基橙的吸附性能,实验表明:微反应法制备的γ-Al2O3吸附性能优于常规沉淀法,γ-Al2O3吸附过程符合Langmuir单分子层吸附模型,吸附动力学符合准二级动力学特征。研究了γ-Al2O3吸附剂的最佳使用条件,最佳条件下γ-Al2O3对甲基橙的吸附率5 min可达58.8%、10 min可达89.7%,吸附平衡时吸附率最高可达98.9%,循环实验表明:γ-Al2O3在稳定性方面表现出优异的性能,经过4次热处理再生工艺后依旧保持了较高的甲基橙脱色率(95.6%)。
中图分类号:
王梦迪, 罗瑾, 吴巍, 周靖辉, 王静, 孙彦民, 于海斌. 微反应法制备γ-Al2O3及其对甲基橙的吸附性能研究[J]. 无机盐工业, 2023, 55(9): 66-74.
WANG Mengdi, LUO Jin, WU Wei, ZHOU Jinghui, WANG Jing, SUN Yanmin, YU Haibin. Study on preparation of γ-Al2O3 by microreaction and its properties for methyl orange adsorption[J]. Inorganic Chemicals Industry, 2023, 55(9): 66-74.
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