摘要
采用水热合成法制备了类球状二氧化锡纳米粉体,再经原位聚合工艺制备聚苯胺(PANI)/SnO2纳米复合材料。利用红外光谱(IR)、X射线衍射(XRD)、扫描电镜(SEM)和透射电镜(TEM)表征了材料的结构和形貌,用四探针测试了材料的电导率,考察了反应物配比对复合材料导电性及光催化吸附性能的影响。结果表明,PANI与SnO2之间存在着化学键的结合,形成交联的孔状结构。复合材料兼具良好的导电性和较高的光催化吸附性能,掺杂30%SnO2纳米粒子时,复合材料的电导率为3.57 S/cm,相比于掺杂态聚苯胺提高了将近十倍,对萘酚绿B的吸附降解率达98%,且循环使用率较高(80%±6%)。
SnO2 nanoparticles with similar globular were prepared by hydrothermal method. Polyaniline（PANI）/SnO2 composite material was prepared by in-situ polymerization.The composites were investigated and characterized by infrared spectrum（IR）,X-ray diffraction（XRD）,scanning electron microscope（SEM） and transmission electron microscope（TEM）.The conductivities of the composites were measured by a four-probe instrument.The influences of reactants＇ ratio of conductivity and photocatalytic adsorption performance of resulting composites were investigated.The results show that,the combination of the chemical between PANI and SnO2 exists in composites and crosslinking hole shape structure is formed when doping SnO2 nanoparticles for 30%,electrical conductivity of composite materials is highest for 3.57 S/cm,compared with the doped polyaniline improved modal nearly 10 times and alpha-naphthol green B photocatalytic degradation and adsorption rate reaches 98%,circular utilization rate is higher（80% ＋ 6%）.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2012年第4期133-136,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(51062011)
甘肃省教育厅项目
关键词
聚苯胺
二氧化锡
电导率
吸附降解率
polyaniline
stannic oxide
conductivity
adsorption and degradation rate
