CAJ | 학술논문

采用水热法合成了SnO2纳米颗粒,通过XRD、TEM、HRTEM和DRS等手段系统表征了合成颗粒.结果表明：通过调节NaCl浓度可有效控制SnO2纳米颗粒的尺寸,在NaCl浓度为1.13 mol/L时SnO2纳米颗粒的晶粒尺寸约6 nm.DRS图谱显示SnO2纳米颗粒在200～400 nm的紫外光范围内有明显的吸收.该催化材料在模拟太阳光下降解罗丹明B表现出优异的光催化性能,主要是由于其颗粒尺寸较小,比表面积较大.
채용수열법합성료SnO2납미과립,통과XRD、TEM、HRTEM화DRS등수단계통표정료합성과립.결과표명：통과조절NaCl농도가유효공제SnO2납미과립적척촌,재NaCl농도위1.13 mol/L시SnO2납미과립적정립척촌약6 nm.DRS도보현시SnO2납미과립재200～400 nm적자외광범위내유명현적흡수.해최화재료재모의태양광하강해라단명B표현출우이적광최화성능,주요시유우기과립척촌교소,비표면적교대.
A novel hydrothermal method was used to prepare SnO2 nanoparticles. XRD, TEM, HRTEM, DRS were used to characterize the catalysts. The results indicated that the size of the SnO2 nanopartieles could be controlled by adjusting the NaCl concentration. When the concentration of NaCl is 1.13 mol/L, SnO2 grain size is about 6 nm. The DRS spectrum showed that SnO2 nanoparticles had obvious absorption in the range of 200 - 400 nm. Moreover, the SnO2 nanoparticles showed high photocatalytic degradation activity for rhodamine B when exposed to xenon light irradiation. The high photocatalytic activity could be attributed to its small size and large specific surface area.