CAJ | 학술논문

以水玻璃为硅源,采用溶胶-凝胶法制备纳米二氧化硅,考察了水热温度（60℃、100℃、130℃、160℃、200℃）对纳米二氧化硅孔结构的影响.采用X-射线衍射（XRD）、傅里叶变化红外光谱（FT-IR）、透射电子显微镜（TEM）和氮气吸附等手段对纳米二氧化硅进行了系统表征.测试结果表明,纳米二氧化硅为无定形结构,水热处理在一定程度上改变了纳米二氧化硅的表面化学性质,是一种行之有效的调节纳米二氧化硅孔结构和微观形貌的方法.
이수파리위규원,채용용효-응효법제비납미이양화규,고찰료수열온도（60℃、100℃、130℃、160℃、200℃）대납미이양화규공결구적영향.채용X-사선연사（XRD）、부리협변화홍외광보（FT-IR）、투사전자현미경（TEM）화담기흡부등수단대납미이양화규진행료계통표정.측시결과표명,납미이양화규위무정형결구,수열처리재일정정도상개변료납미이양화규적표면화학성질,시일충행지유효적조절납미이양화규공결구화미관형모적방법.
Silica nanoparticles were synthesized from water-glass by a simple sol-gel method.The influences of different hydrothermal temperatures（60℃,100℃,130℃,160℃,200℃） on the pore structure of silica nanoparticles were studied systematically.The as-prepared samples were characterized by a variety of means such as XRD,FT-IR,transmission electron microscopy（TEM） and N2 adsorption.The results indicate that the products are amorphous silica.The hydrothermal treatment can somehow change the surface chemical properties of silica.The hydrothermal treatment is an effective method in tailoring the pore structure and micro-topography of silica nanoparticles.