超声引入酸浸渍过程对活性炭性能的影响

张宗波; 刘晓杨; 李大伟; 高田田; 雷宇奇; 吴宝贵; 赵佳伟; 王延奎; 魏令

doi:10.1016/S1872-5805(18)60349-X

超声引入酸浸渍过程对活性炭性能的影响

doi: 10.1016/S1872-5805(18)60349-X

1.
中国石油大学(华东), 机电工程学院, 山东青岛 266580;
2.
中国石油大学(华东), 重质油国家重点实验室, 山东青岛 266580

基金项目: 国家自然科学基金（51205414，51407200，21604094）；山东省自然科学基金（ZR2017QEE006）；中央高校基本科研业务费（18CX02121A，16CX05012A，14CX02199）.

详细信息

作者简介:
张宗波,博士,副教授.E-mail:zzb001_0@163.com

通讯作者:
李大伟.E-mail:lidaweicumt@126.com

中图分类号: TQ127.1⁺1
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- 文章访问数: 487
- HTML全文浏览量: 136
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- 被引次数: 0
出版历程
- 收稿日期: 2018-07-30
- 录用日期: 2018-11-01
- 修回日期: 2018-09-30
- 刊出日期: 2018-10-28

Effects of the ultrasound-assisted H₃PO₄ impregnation of sawdust on the properties of activated carbons produced from it

1.
College of Mechanical and Electrical Engineering, China University of Petroleum(East China), Qingdao 266580, China;
2.
State Key Laboratory of Heavy Oil Processing, China University of Petroleum(East China), Qingdao 266580, China

Funds: National Natural Science Foundation of China (51205414, 51407200, 21604094); Shandong Natural Science Foundation (ZR2017QEE006); Fundamental Research Funds for the Central Universities (18CX02121A, 16CX05012A, 14CX02199).

摘要

摘要: 在磷酸法制备活性炭的浸渍阶段引入超声，研究超声浸渍对活性炭孔结构、微观形貌、表面官能团、碘值和亚甲基蓝值的影响。结果表明，超声浸渍能够增大活性炭的比表面积、总孔容、微孔孔容、中孔孔容、极微孔孔容、碘值和亚甲基蓝吸附值，但长时间超声浸渍并无必要。最佳超声浸渍条件为：在45 min的总浸渍时间内引入5 min超声浸渍。在该条件下制得的活性炭比表面积达1 504 m²/g，超过了文献中生物质基磷酸法活性炭的诸多相应值。另外，与静置浸渍相比，超声浸渍使制备最高碘值样品所需的总浸渍时间减少了85%。
- 活性炭 /
- 超声 /
- 浸渍 /
- 磷酸活化
Abstract: The effects of the ultrasound-assisted H₃PO₄ impregnation of sawdust on the pore structure, morphology, surface functional groups, and adsorption capacities for iodine and methylene blue of activated carbons produced from it were investigated. Results showed that ultrasonic impregnation promoted the mass transfer and uptake of H₃PO₄, which simultaneously increased specific surface area, pore volumes of micropores, mesopores and ultramicropores, and adsorption capacities for iodine and methylene blue. Long ultrasonic impregnation times were unnecessary. The maximum surface area (1 504 m²/g) was achieved at a total impregnation time of 45 min with 5 min ultrasound irradiation. Compared with impregnation without the ultrasound treatment, the ultrasonic-assisted impregnation reduced the impregnation time by 85%.
- Activated carbon /
- Ultrasound /
- Impregnation /
- H₃PO₄ activation

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参考文献(41)

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