文献类型：期刊文献

中文题名：麦秸秆为原料新绿色工艺制备碳微球

英文题名：A new and environmentally friendly route for preparation of carbon microspheres from wheat straw

作者：陈磊山[1];王存景[1];苗郁[1];陈改荣[1]

机构：[1]新乡学院化学与化工学院

第一机构：新乡学院化学化工学院

年份：2015

卷号：43

期号：2

起止页码：69-70

中文期刊名：化工新型材料

外文期刊名：New Chemical Materials

收录：北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：河南省重点科技攻关项目(132102210011)

语种：中文

中文关键词：麦秸秆;碳微球;水热法;生物质

外文关键词：wheat straw; carbon microsphere; hydrothermal method; biomass

摘要：以麦秸秆粉末为原料,先将麦秸秆粉末与水的混合液于190℃的干燥箱中无催化剂条件下水解1h,然后以水解后的清液为碳源于180℃下无催化剂条件下水热碳化8h来制备碳纳米材料,探讨了秸秆粉末与水的固液比对产物形貌的影响。通过红外光谱仪对产物的表面官能团进行了分析,通过扫描电子显微镜对产物的微观形貌进行表征。结果显示：所制备的产物为带有大量O—H基、CHO基等官能团的碳微球,固液比对碳微球的粒径有较大的影响,固液比为1∶60时产物为外壁光滑的碳微球,其粒径在100～300nm之间;固液比为1∶40时,所制备碳微球,粒径较大,多数直径在250nm左右;固液比为1∶20时产物中明显有直径约800nm左右的大球出现,大直径的碳微球球壁看起来较光滑,但产物的均匀性变差。
The reactions were performed to synthesize carbon materials using wheat straw powders as raw materials.The powders first was hydrolyzed at the absence of a catalyst at 190℃for 1h,then the hydrolyzate solution was used as carbon source to prepare carbon materials via hydrothermal carbonization at 180 ℃ at the absence of a catalyst for 8h.The influence of solid-liquid-ratio of wheat straw to water on the morphology of the product was investigated.The samples were examined by scanning electron microscope and fourier transform infrared spectroscopy.The results showed that the product was carbon microspheres with a large number of O-H,CHO and other functional groups and the diameter of the microspheres noticeably depended on the solid-liquid-ratio.When the solid-liquid-ratio was 1∶60,the diameter of the microspheres was in the range of 100 to 300nm.When the solid-liquid-ratio was 1∶40,the microspheres with larger and more uniform diameters mostly about 250 nm were obtained.And when the solid-liquid-ratio was 1∶20, there were more larger microspheres with diameters about 800 nm in the product and the surface of these carbon microspheres was more smoother.Whereas,the uniformity of the product deteriorated.