工业水处理 ›› 2020, Vol. 40 ›› Issue (6): 36-39. doi: 10.11894/iwt.2019-0670

• 试验研究 • 上一篇    下一篇

芹菜籽源药渣生物炭制备及对苯酚的吸附性能

徐恺1,2(),唐克1,2,*(),常春1,蒙丽颖1   

  1. 1. 渤海大学化学化工学院, 辽宁锦州 121013
    2. 辽宁省功能化合物的合成及应用重点实验室, 辽宁锦州 121013
  • 收稿日期:2020-04-21 出版日期:2020-06-20 发布日期:2020-06-20
  • 通讯作者: 唐克 E-mail:bdxukai@163.com;tangke1984@126.com
  • 作者简介:徐恺(1994—), 硕士。电话:13897857305, E-mail:bdxukai@163.com
  • 基金资助:
    国家自然科学基金青年项目(21606023);辽宁省自然科学基金项目(20180550030);锦州市科技计划项目(16A2G26)

Preparation of biochar from celery seed residue and its adsorption performance for phenol

Kai Xu1,2(),Ke Tang1,2,*(),Chun Chang1,Liying Meng1   

  1. 1. College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, China
    2. Key Laboratory for Synthesis and Application of the Functional Compounds, Jinzhou 121013, China
  • Received:2020-04-21 Online:2020-06-20 Published:2020-06-20
  • Contact: Ke Tang E-mail:bdxukai@163.com;tangke1984@126.com

摘要:

以经过水蒸气蒸馏法提取后的芹菜籽残渣为前驱体,采用H3PO4两步活化和热解法制备生物炭,并研究了其对水中苯酚的吸附性能。SEM、FTIR的表征结果表明,制备的生物炭表面含有大量含氧官能团。吸附试验结果表明,对初始质量浓度为50 mg/L的苯酚溶液,当吸附剂投加量为3 g/L时,苯酚去除率可以达到71.4%。生物炭上的苯酚吸附过程符合Freundlich等温方程和伪二级动力学模型,最大吸附容量可达50.56 mg/g。

关键词: 芹菜籽药渣, 生物炭, 吸附, 苯酚

Abstract:

Biochar was prepared by H3PO4 two-step activation and pyrolysis using celery seed residue extracted by steam distillation as precursor. Its adsorption performance for phenol in water was studied. The results of SEM and FTIR showed that a large number of oxygen-containing functional groups were found on its surface. The results of the adsorption test showed that 71.4% of phenol(50 mg/L) was removed after using 3 g/L of biochar. The phenol adsorption process on biochar conformed to the Freundlich isotherm equation and pseudo-second-order kinetic model. The maximum adsorption capacity was 50.56 mg/g.

Key words: celery seed residue, biochar, adsorption, phenol

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