摘要
本文以六水硝酸锌(Zn(NO_3)_2·6H_2O)和2-甲基咪唑为原料,在不同溶剂条件下(甲醇、乙醇和水)制备前驱体金属有机框架化合物ZIF-8。接着,采用热重(TG)、红外光谱(FTIR)、X射线粉末衍射(PXRD)、紫外-可见漫反射光谱(UV-vis DRS)和扫描电镜(FE-SEM)等手段对前驱体ZIF-8和目标产品Zn O进行了表征。以亚甲基蓝为模拟污染物,考察了不同溶剂可见光下制备Zn O的光催化性能及催化剂的稳定性。结果表明:在溶剂水条件下制备的Zn O的光催化性能最好,且具有一定的稳定性。
A series of Metal-Organic Frameworks Zeolitic Imidazolate Framework-8(ZIF-8)were prepared by Zn(NO3)2?6H2O and2-methylimidazole by different solvents(methanol,ethanol and water).Then,the precursor ZIF-8and ZnO product were charac-terized and analyzed by thermogravimetry(TG),infrared spectrum(FTIR),powder X-ray diffraction(PXRD),ultraviolet-visible dif-fuse reflection spectrum(UV-vis DRS)and field emission scanning electron microcopy(FE-SEM).The photocatalytic activity was e-valuated by decolorization of methylene blue and the stability of catalysts were studied.The results show that ZnO(water)exhibit good photocatalytic activity for dye degradation under visible-light and show good stability toward photocatalysis.
作者
郭娇
张亚昆
陈改荣
苗郁
方菲
GUO Jiao;ZHANG Yakun;CHEN Gairong;MIAO Yu;FANG Fei(College of Chemistry and Chemical Engineering,Xinxiang University,Henan Xinxiang 453003,China)
出处
《化学研究与应用》
CAS
CSCD
北大核心
2018年第2期303-309,共7页
Chemical Research and Application
基金
河南省教育厅项目(14B430022)资助
河南省重点科技攻关项目(142102210254)资助
新乡学院科技创新基金项目(15ZA03)资助
作者简介
陈改荣(962-),女,教授,主要从事纳米功能材料研究。E-mail:18790510826@163.com
