碳氮纳米晶体的制备与表征  

Synthesis and Characterization of Nanosized Carbon Nitride Crystal

作　　者：籍凤秋[1] 康拥政[2] 曹传宝[3] 

机构地区：[1]石家庄铁道学院材料科学与工程分院,石家庄050043 [2]石家庄铁道学院交通工程分院,石家庄050043 [3]北京理工大学材料科学研究中心,北京100081

出　　处：《人工晶体学报》2007年第4期740-742,共3页Journal of Synthetic Crystals

基　　金：国家自然科学基金(No.20171007)项目

摘　　要：采用机械球磨法,以石墨为反应前驱物,在充有300kPa压力的氨气气氛下连续球磨200h,然后在氨气气氛、650℃以上的温度条件下热处理4h,制备出C3N4纳米单晶。X射线粉末衍射(XRD)确定出样品中主要晶相为β-C3N4,此外还有少量的α-C3N4。电子衍射、红外光谱测试结果进一步表明产物的结构为C3N4单晶。　Nanosized Beta carbon nitride crystal has been synthesized by ball milling method.The graphite powders were first milled for 200h under the presence of the NH3 gas with 300kPa.And then they were annealed for 4h in the ammonia gas flow at 650℃.XRD result showed that the structure of the most as-synthesized products were β-C3N4 signal crystal with few α-C3N4.SAED and FTIR confirmed that the compositions of the products were carbon nitride crystal

关 键 词：机械球磨法 β-C3N4 α-C3N 纳米单晶 

分 类 号：O484[理学—固体物理]