水热法制备三维海胆型TiO_(2)微纳米材料及其表征  

Preparation and characterization of three-dimensional urchin-like TiO_(2) micro-nano materials by hydrothermal method

作　　者：柳咪 来贤 Liu Mi;Lai Xian(Guangzhou Vocational and Technical University of Science and Technology,Guangzhou 510550,Guangdong,China;Shaanxi University of Science and Technology,Xi'an 710021,Shaanxi,China)

机构地区：[1]广州科技职业技术大学,广东广州510550 [2]陕西科技大学,陕西西安710021

出　　处：《中国胶粘剂》2025年第3期63-68,共6页China Adhesives

基　　金：广东省普通高校重点科研平台项目(2022KCXTD035);广州科技职业技术大学2024年度校级科研项目(2024LG17)。

摘　　要：具有特殊形貌和结构的二氧化钛(TiO_(2))微纳米材料近年来成为关注和研究的热点,而如何通过水热法精确控制TiO_(2)的形貌仍然是一大挑战。通过一步水热法,采用四异丙醇钛(TTIP)作为高效的钛源,同时巧妙地引入浓盐酸与聚乙烯吡咯烷酮(PVP)作为形貌调控剂,在乙二醇这一绿色溶剂的环境下制备了海胆型TiO_(2)微纳米材料。探讨了不同反应条件对TiO_(2)结构与性能的影响,并分析其生长机理。研究结果表明:水热法可以成功制备出三维海胆型TiO_(2)微纳米材料,且反应条件对材料的形貌和性能有重要影响。此外,在优化条件下,当PVP的浓度设定为6 mg/mL,同时操作温度控制在150℃,并维持反应时间长达24 h时,样品的分散性能达到最优状态,且其表面形貌的完整性得到显著提升。Titanium dioxide(TiO_(2))micro-nano materials with special morphology and structure have become a focus of attention and research hotspots in recent years,while how to precisely control the morphology of TiO_(2)through hydrothermal method remains a major challenge.By employing a one-step hydrothermal method,using titanium tetraisopropoxide(TTIP)as an efficient titanium source,and ingeniously introducing concentrated hydrochloric acid and polyvinylpyrrolidone(PVP)as morphology-regulating agents,urchin-like TiO_(2)micro-nano materials were prepared in the environment of green solvent of ethylene glycol.The effects of different reaction conditions on the structure and properties of TiO_(2)were investigated,and its growth mechanism was analyzed.The research results showed that the hydrothermal method could successfully prepare three-dimensional urchin-like TiO_(2)micro-nano materials,and the reaction conditions had significant impacts on the materials'morphology and performance.Furthermore,under optimized conditions,when the concentration of PVP was set at 6 mg/mL,the operating temperature was controlled at 150℃,and the reaction time was maintained for 24 h,the dispersion performance of the sample reached the optimal state,and the integrity of its surface morphology was significantly improved.

关 键 词：水热法 海胆型TiO_(2) 微纳米材料 制备 表征 

分 类 号：TQ430.4[化学工程] TB383.1[一般工业技术—材料科学与工程]