摘要
本文以十六烷基三甲基溴化铵(CTAB)作为结构导向剂,利用尿素在高温条件下受热分解生成的二氧化碳与氯化镁反应,通过层-层自组装制备出具有片层花状结构的氧化镁,并以其对含Pb(Ⅱ)溶液的吸附为探针反应,研究其对重金属离子的吸附性能。实验结果表明,所制备氧化镁的前驱体为碱式碳酸镁;经过600℃焙烧后,得到的片层花状氧化镁比表面积大于60 m2.g-1,具有良好的吸附性能;对含Pb(II)溶液的吸附过程符合Langmuir等温吸附,最大吸附量达到320 mg.g-1。
A novel adsorbent of flower-like magnesium oxide has been prepared via hydrothermal method using CTAB as a structure director. Experiment results showed that the precursor of flower-like MgO is basic magnesium carbonate, and MgO with large surface area was obtained after calcination at 600 ℃. The adsorption performance of flower-like MgO was also studied in head solution. The results of adsorption are conformed to Langmuir model, and maximum adsorption is 320 mg .g-1, which means the novel flower-like MgO has a high adsorption performance.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2013年第9期1793-1798,共6页
Chinese Journal of Inorganic Chemistry
基金
国家国际科技合作专项项目(No.2012DFA91500)
高等学校博士学科点专向科研基金资助课题(No.20121401120012)
山西省环保厅环保科研课题(No.2012H08)资助项目
