CAJ | 학술논문

分别以金属钛（Ti）和氧化钛(TiO2)为原料，通过水热法制备TiO2纳米管，研究水热温度、pH、不同钛源和n(TiO2)/n(NaOH)的比值对TiO2纳米管形貌的影响。结果表明，在最佳实验条件（t=150℃，pH=10～12，n(TiO2)/n(NaOH)=6.25×10-4）下，以TiO2作钛源时制备出管壁厚度和外径分别为2 nm和8～10 nm的TiO2纳米管；以金属钛粉作钛源所制备的TiO2纳米管，其壁厚、外径分别约为1～1.5 nm和3～5 nm，明显小于前者。在温度为130℃～170℃、pH=8～12范围内，温度、pH对TiO2纳米管的壁厚和管径基本无影响。
분별이금속태（Ti）화양화태(TiO2)위원료，통과수열법제비TiO2납미관，연구수열온도、pH、불동태원화n(TiO2)/n(NaOH)적비치대TiO2납미관형모적영향。결과표명，재최가실험조건（t=150℃，pH=10～12，n(TiO2)/n(NaOH)=6.25×10-4）하，이TiO2작태원시제비출관벽후도화외경분별위2 nm화8～10 nm적TiO2납미관；이금속태분작태원소제비적TiO2납미관，기벽후、외경분별약위1～1.5 nm화3～5 nm，명현소우전자。재온도위130℃～170℃、pH=8～12범위내，온도、pH대TiO2납미관적벽후화관경기본무영향。
The influence of different factors, such as hydrothermal temperature, pH, titanium sources and n (TiO2)/n (NaOH), on the morphology of TiO2 was studied, using Ti and TiO2 as titanium source, respectively. The results indicated that, under the best experiment condition (t=150 , pH=10~12 and n(TiO2)/n (NaOH)= 6.25×10-4), the TiO2 nanotubes that were 2 nm in wall thickness and 8~10 nm in outer diameter were made through hydrothermal preparation. When the titanium source was titanium powder, the wall thickness of the prepared TiO2 nanotubes was 1~1.5 nm and the outer diameter was 3~5 nm, which was obviously smaller than that of the former. When temperature was in the range of 130 ℃ to 170 ℃ and pH was in the range of 8 to 12, the wall thickness and the outer diameter were hardly influenced by temperature and pH.