Characterizing surface properties of oxidized coal using FTIR and contact angle measurements

Zhou You; Albijanic Boris; Wang Yuling; Yang Jianguo

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Characterizing surface properties of oxidized coal using FTIR and contact angle measurements

机译：使用FTIR和接触角测量来表征氧化煤的表面性质

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This paper compares FTIR (Fourier Transform Infrared Spectroscopy) and contact angle measurements to characterize surface properties of the oxidized coals with different ash contents. FTIR analysis was employed to investigate functional chemical groups of the oxidized coals. Contact angle measurements were utilized to characterize the hydrophilicity of the oxidized coal. The results showed that contact angle measurements were the same regarding of the type of the oxidized coal. However, FTIR results show that the coal samples with lower ash content had more hydrophobic groups and less hydrophilic groups than the coal samples with higher ash content. This paper demonstrated that FTIR technique is more sensitive than contact angle measurements in studying surface properties of oxidized coal samples.

机译：本文比较了傅立叶变换红外光谱（FTIR）和接触角测量，以表征不同灰分含量的氧化煤的表面性质。 FTIR分析用于研究氧化煤的官能化学基团。接触角测量用于表征氧化煤的亲水性。结果表明，接触角的测量对于氧化煤的类型是相同的。然而，FTIR结果表明，灰分含量较低的煤样品比灰分含量较高的煤样品具有更多的疏水基团和更少的亲水基团。本文表明，FTIR技术在研究氧化煤样品的表面特性方面比接触角测量更为灵敏。

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来源
《Energy Sources》 |2018年第12期|1559-1564|共6页
作者
Zhou You; Albijanic Boris; Wang Yuling; Yang Jianguo;
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作者单位

China Univ Min & Technol, Sch Chem Engn & Technol, Key Lab Coal Proc & Efficient Utilizat, Minist Educ, Xuzhou, Jiangsu, Peoples R China;

China Univ Min & Technol, Sch Chem Engn & Technol, Key Lab Coal Proc & Efficient Utilizat, Minist Educ, Xuzhou, Jiangsu, Peoples R China;

China Univ Min & Technol, Sch Chem Engn & Technol, Key Lab Coal Proc & Efficient Utilizat, Minist Educ, Xuzhou, Jiangsu, Peoples R China;

China Univ Min & Technol, Sch Chem Engn & Technol, Key Lab Coal Proc & Efficient Utilizat, Minist Educ, Xuzhou, Jiangsu, Peoples R China;

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正文语种 eng
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关键词
Contact angle; FTIR; hydrophilicity; hydrophobicity; oxidized coal;

机译：接触角;红外光谱;亲水性;疏水性;氧化煤;

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Characterizing surface properties of oxidized coal using FTIR and contact angle measurements

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