韶关学院学报
韶關學院學報
소관학원학보
Journal of Shaoguan University(Social Science Edition)
2008年
3期
55~58
,共null页
溶胶-凝胶法 纳米二氧化钛 晶型转变 相变温度
溶膠-凝膠法 納米二氧化鈦 晶型轉變 相變溫度
용효-응효법 납미이양화태 정형전변 상변온도
sol - gel; nano - TiO2 ; crystal type; phase transformation temperature
纳米二氧化钛粉末具有不同于常规材料的特殊性能，在环境保护、化工、医疗卫生等高科技领域有着广泛的应用前景．溶胶-凝胶法是制备纳米二氧化钛粉末常用而有效的方法．以钛酸丁酯为前驱物，以乙醇为溶剂，未添加任何添加剂，采用溶胶-凝胶法，在中性环境下合成纳米二氧化钛粉末，通过XRD图对所得样品进行表征．探讨了试剂的配比、煅烧温度对溶胶-凝胶法制备的二氧化钛晶型转化温度的影响．
納米二氧化鈦粉末具有不同于常規材料的特殊性能，在環境保護、化工、醫療衛生等高科技領域有著廣汎的應用前景．溶膠-凝膠法是製備納米二氧化鈦粉末常用而有效的方法．以鈦痠丁酯為前驅物，以乙醇為溶劑，未添加任何添加劑，採用溶膠-凝膠法，在中性環境下閤成納米二氧化鈦粉末，通過XRD圖對所得樣品進行錶徵．探討瞭試劑的配比、煅燒溫度對溶膠-凝膠法製備的二氧化鈦晶型轉化溫度的影響．
납미이양화태분말구유불동우상규재료적특수성능，재배경보호、화공、의료위생등고과기영역유착엄범적응용전경．용효-응효법시제비납미이양화태분말상용이유효적방법．이태산정지위전구물，이을순위용제，미첨가임하첨가제，채용용효-응효법，재중성배경하합성납미이양화태분말，통과XRD도대소득양품진행표정．탐토료시제적배비、단소온도대용효-응효법제비적이양화태정형전화온도적영향．
Nanometer TiO2 powder has different properties from the common materials. It has an extensive application perspective in high technology fields such as environment protection, chemical engineering, medical treatment and public health, etc. sol - gel is a common and effective method to prepare nanometer TiO2 powder. Due to the numerous studies about sol - gel process under different conditions, in this experiment, nanometer TiO2 powder is synthesized by sol - gel method under neuter condition, with [Ti｜O - Bu｜4] as precursor, [C2H5OH] as solvent, and without any additive. At the same time the experimental techniques of XRD and FTIR are used to characterize the synthesized specimens. So the study investigates in the influence of the proportion of reagent and roast temperature on the phase transformation temperature of nanometer TiO2 powder prepared by sol - gel.
