光谱学与光谱分析 |
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Study on Biochar Properties Analysis with Scanning Electron Microscope-EnergyDispersive X-Ray Spectroscopy (SEM-EDX) |
MA Xing-zhu1, 2, HAO Xiao-yu1, 2, CHEN Xue-li2, GAO Zhong-chao2, WEI Dan2, ZHOU Bao-ku2* |
1. Heilongjiang Academy of Agricultural Sciences Postdoctoral Programme, Harbin 150086, China 2. Institute of Soil Fertilizer and Environment Resource, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China |
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Abstract Scanning Electron Microscope-Energy Dispersive X-ray spectroscopy (SEM-EDX) was applied to analyze the chemical and structural properties of biochars produced under different temperatures. Results showed that average carbon content (SEM C aver.) and maximum carbon content (SEM C max.) of miscanthus (MS) biochar increased as temperature increasing. There were significant and positive relationships between SEM C max., SEM C aver. and highest treatment temperature (HTT) (r were 0.76 and 0.86). SEM C max., SEM C aver. and dry combustion total carbon content had significant and positive relationships (r were 0.83 and 0.91), SEM C max. which was better than SEM C aver. So the carbon content of MS biochar which had good correlationship with temperature analyzed by SEM-EDX, SEM C max. could be used for composition analysis of biochar, scanning results could analyze structural properties of biochar effectively. This method is rapid, simple and stable. It also could analyze structure and composition of biochar simultaneously. It is a promising method that would be useful to study the structure and composition of biochar and other materials.
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Received: 2015-03-23
Accepted: 2015-07-25
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Corresponding Authors:
ZHOU Bao-ku
E-mail: zhoubaoku@aliyun.com
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