摘要
以(NH4)6Mo7O24.4H2O为钼源,十六烷基三甲基溴化铵(CTAB)为模板剂,通过强酸性离子交换树脂(R-H)进行静态交换制备出前驱物,前驱物在600℃经不同时间焙烧,制备了α-MoO3纳米棒和纳米矩形小片。用FTIR,XRD,TEM和SEM等测试手段对样品的相态、结构和形貌进行了光谱表征,结果表明:前驱物经过600℃焙烧4和8h后,分别得到长度约1～1.6μm,直径约0.10～0.20μm,长径比为8的α-MoO3纳米棒和长度约0.14～0.18μm,宽度约60～80nm,厚度约28～32nm的纳米矩形小片。该法制备工艺简单,不用人为地调节pH、省去过多洗涤等过程,树脂可再生重复使用,副产品氯化铵可回收利用,无环境污染。
α-MoO3 was paid special attention to nano scale with its layered crystal structure and potential applications in material chemistry fields.In the present paper,（NH4）6Mo7O24·4H2O and hexadecyl trimethyl ammonium bromide（CTAB） were proposed as molybdenum precursor and template agent,respectively,and the precursor was prepared by statistic ion exchange with strong acidic ion exchange resin（R-H）.The precursor can be transformed into α-MoO3 nanorods and nanometer rectangular small pieces via calcining precursor at 600 ℃ for different times.The phasestate,structure and morphology of samples were identified by FTIR,XRD,TEM and SEM.The α-MoO3 nanorods with the length of about 1～1.6 μm,the diameter of about 0.10～0.20 μm and the ratio of length to diameter of 8,and the nanometer rectangular small pieces with the length of about 0.14～0.18 μm,the width of about 60～80 nm and the thickness of 28～32 nm,were obtained after 600 ℃ sintering for 4 and 8 h.This preparation procedure is simple,without the need for artificially adjusting the pH,redundantly washing can be avoided,the resin can be regenerated and NH4Cl was recycled without environmental pollution.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2012年第2期496-499,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(21177163)
国家民委科研项目(09ZY011)
中央民族大学"985工程"项目(MUC 98504-14
MUC 98507-08)
中央民族大学"211工程"项目(MUC 02121103)
中央高校基本科研业务费专项资金项目(0910KYZY45)
高等学校学科创新引智计划项目(B08044)资助
关键词
模板剂法
离子交换
α-MoO3
纳米棒
纳米矩形片
Template agent method
Ion exchange
α-MoO3
nanorods and nanometer rectangular pieces
