摘要
以球状β-Bi_2O_3为原料、HCl为pH调整剂,通过无模板剂水热法制备了纤维状Bi_(24)O_(31)Cl_(10)。采用XRD、SEM等系统考察了固含量、水热温度、保温时间和搅拌速度对产物物相和形貌的影响。结果表明,以球状β-Bi_2O_3为原料,在HCl体系中通过简单的水热反应可以制备出纳米纤维Bi_(24)O_(31)Cl_(10)相,纤维分布均匀,直径约为30~100 nm,长度达几十微米;在160℃、氧化铋含量50 g/L、转速800 r/min条件下反应5 h,纤维转化率高,纤维形貌佳。
With spherical β-Bi2O3 as raw material,HCl as a pH regulator,ternary compound nanofiber Bi（24）O（31）Cl（10） was synthesized by using hydrothermal method. Effects of solid content,reaction temperature,reaction time and stirring speed on the phase composition and morphology of the as-prepared samples were systematically investigated by using XRD and SEM. Results show that Bi（24）O（31）Cl（10） nanofiber can be synthesized in HCl solution with β-Bi2O3 as raw material by using a simple hydrothermal method,and the as-prepared nanofiber is uniform in size distribution with the diameter within the range of 30 ~ 100 nm and length up to tens of micrometers. It is shown that 5-h reaction at the temperature of160 ℃ with bismuth oxide content at 50 g/L and stirring speed at 800 r/min resulted in the highest Bi（24）O（31）Cl（10） yield and good fiber morphology.
出处
《矿冶工程》
CSCD
北大核心
2017年第6期113-116,120,共5页
Mining and Metallurgical Engineering
基金
湖南省工程车辆底盘制造工程技术研究中心开放基金资助(2015KFJJ008)
