大理大学学报 ›› 2020, Vol. 5 ›› Issue (12): 15-20.DOI: 10. 3969 / j. issn. 2096-2266. 2020. 12. 003

• 化学 • 上一篇    下一篇

氯化锌活化柚子皮制备生物炭及其对亚甲基蓝的吸附

  

  1. 1. 大理大学农学与生物科学学院,云南大理671003;2. 大理大学药学院,云南大理671000
  • 收稿日期:2020-04-13 修回日期:2020-04-23 出版日期:2020-12-15 发布日期:2021-01-04
  • 作者简介:廖绍华,副教授,主要从事生物质材料资源化利用研究。
  • 基金资助:
    国家自然科学基金项目(41603112);大理大学第九批中青年学术带头人培养对象项目(理大校发〔2018〕108号)

Preparation of Biochar from Pomelo Peels Activated by Zinc Chloride and Its Adsorption#br# of Methylene Blue#br#

  1. 1. College of Agriculture and Biology Science, Dali University, Dali, Yunnan 671003, China; 2. College of Pharmacy, Dali University,
    Dali, Yunnan 671000, China
  • Received:2020-04-13 Revised:2020-04-23 Online:2020-12-15 Published:2021-01-04

摘要: 目的:探究废弃果皮资源化,采用柚子皮作为制备生物炭的原材料,并对其进行氯化锌(ZnCl2)溶液活化而增强吸附
性能,以提高柚子皮源生物炭在农业、工业和环境等多方面的应用潜力。方法:通过L16(45)正交试验优选ZnCl2活化柚子皮
制备生物炭的最佳条件,采用极差分析和SPSS一般线性模型的单变量分析其结果。结果:五因素对生物炭吸附性能的影响
大小顺序为:炭化活化温度>ZnCl2溶液浓度>固液比>炭化活化时间>浸渍时间;同时对照正交试验结果和单因素试验结
果,得出活化制备柚子皮源生物炭对亚甲基蓝的吸附性能的最佳条件:固液比(g/mL)1:4、ZnCl2溶液浓度40%、浸渍时间14 h、
炭化活化温度600 °C、炭化活化时间20 min。结论:正交试验和单因素试验相结合,得出柚子皮生物炭吸附亚甲基蓝的最优制
备条件。

关键词: 氯化锌, 柚子皮, 生物炭, 亚甲基蓝, 正交试验

Abstract: Objective: To explore the reutilization of wasted peels. Pomelo peels were used as raw materials to prepare biochar, and
zinc chloride solution was used to activate the pomelo peels to enhance adsorption performance of biochar derived from pomelo peel, so as to improve the application potential of biochar derived from pomelo peels in agriculture, industry and environment and so on.
Methods: The optimum conditions of pomelo-peel biochar activated by zinc chloride for methylene blue(MB)was studied by a L16 (45)orthogonal test, and the results were analyzed by a range analysis and the general linear model of single variable analysis with SPSS.Results: The effects of five factors on the adsorption properties of biochar for MB were: carbonization activation temperature > zinc chloride solution concentration > solid-liquid ratio > carbonization activation time > impregnation time. At the same time, the results of the orthogonal test and the single factor test were compared, which showed that the optimum conditions of activated pomelo-peel biochar for the adsorption of MB were as follows: solid-liquid ratio(g/mL)at 1 : 4, zinc chloride solution concentration at 40%,impregnation time at 14 h, carbonization activation temperature at 600 ℃, and carbonization activation time at 20 min. Conclusion:Orthogonal test and single factor test were combined to obtain the optimum preparation conditions of biochar derived from pomelo peels for adsorbing MB.

Key words: zinc chloride, pomelo peel, biochar, methylene blue, orthogonal test

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