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[1]方彦,杨文芬,宫国卓,等.活性炭表面改性和苯吸附性能的研究[J].中国安全生产科学技术,2015,11(4):71-76.[doi:10.11731/j.issn.1673-193X.2015.04.011]
 FANG Yan,YANG Wen-fen,GONG Guo-zhuo,et al.Research on surface modification and benzene adsorption performance of activated carbon[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(4):71-76.[doi:10.11731/j.issn.1673-193X.2015.04.011]
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活性炭表面改性和苯吸附性能的研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年4期
页码:
71-76
栏目:
学术论著
出版日期:
2015-04-30

文章信息/Info

Title:
Research on surface modification and benzene adsorption performance of activated carbon
作者:
方彦1杨文芬123宫国卓1张斌1
1.北京市劳动保护科学研究所,北京 100054; 2.职业安全健康北京市重点实验室, 北京 100054; 3.尘毒危害预防与控制技术国家安全监管总局安全生产重点实验室, 北京 100054)
Author(s):
FANG Yan1 YANG Wen-fen123 GONG Guo-zhuo1 ZHANG Bin1
1.Beijing Municipal Institute of Labour Protection;2.Beijing Key Laboratory of Occupational Safety and Health; 3.Key Laboratory of Toxic and Dust Hazards Prevention and Control Technology,State Administration of Work Safety)
关键词:
活性炭表面化学改性苯吸附性能
Keywords:
activated carbon surface modification benzene adsorption performance
分类号:
X948
DOI:
10.11731/j.issn.1673-193X.2015.04.011
文献标志码:
A
摘要:
为了提高活性炭的吸附性能,用N2和NH3对四种不同活性炭进行表面改性。对改性前后的活性炭分别进行了苯吸附实验、碘值和亚甲基兰值表征以及贝姆滴定实验后,结果发现:表面还原改性在一定程度上促进了活性炭的孔结构发育,可以提高活性炭的吸附性能,增加了活性炭表面的碱性官能团的含量;四种活性炭中的羧基含量都比较高,改性后羧基含量大幅下降;表面改性对煤质活性炭的苯吸附值变化不大,但对木质活性炭的防护性能提高明显,NH3改性比N2改性更能提高活性炭对苯的吸附性能。 关键词:活性炭;表面化学改性;苯吸附性能
Abstract:
In order to improve the adsorption performance of activated carbon, the surface modification of four different kinds of activated carbon were conducted with the aid of NH3 and N2. The experiments of benzene adsorption, iodine number, methylene blue value representation and Boehm titration were performed on original and modified activated carbons. The results showed that: surface modification can promote the pore structure development to a certain extent, and improve the adsorption performance of activated carbon. It increased the amount of basic functional groups on the surface of activated carbon. The carboxyl contents of four kinds of activated carbon were all higher, however, the carboxyl content dropped significantly after modification. The improvement of benzene adsorption value by surface modification was more obvious for wood-based activated carbon than coal-based activated carbon, and the improvement was more obvious for NH3 modification than N2 modification.

参考文献/References:

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备注/Memo

备注/Memo:
北京市科学技术研究院2014科技创新工程项目(PXM2014-178304-000001-00130138);国家安全生产监督管理总局2014年安全生产重大事故防治关键技术科技项目(Beijing-0003-2014AQ)
更新日期/Last Update: 2015-04-30