脉冲激光喷涂一步合成黑色二氧化钛复合涂层  

One-step Synthesis of Black TiO_2 Composite Coating on Glass by Pulsed Laser Spraying

作　　者：张立宪 梁砚琴 王绍丹 卢红 刘爱峰 魏强[1,3] ZHANG Li-Xian;LIANG Yan-Qin;WANG Shao-Dan;LU Hong;LIU Ai-Feng;WEI Qiang(Tianjin Key Laboratory of Composite and Functional Materials,School of Materials Science and Engineering,Tianjin University,Tianjin 300350,China;First Teaching Hospital of Tianjin University of Traditional Chinese Medicine,Tianjin 300193,China;School of Mechanical Engineering,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]天津大学材料科学与工程学院天津市材料复合与功能化重点实验室,天津300350 [2]天津中医院大学第一附属医院,天津300193 [3]河北工业大学机械工程学院,天津300130

出　　处：《无机材料学报》2019年第1期109-113,共5页Journal of Inorganic Materials

基　　金：天津市应用基础与前沿技术研究计划重点项目(15JCZDJC38200);国家自然科学基金(81673994;51573137)~~

摘　　要：为实现黑色纳米TiO_2有效负载,提高实际应用能力,本研究提出了脉冲激光溅射喷涂的方法。在石英玻璃基底上一步制备了非晶分子筛和金红石型TiO_2纳米晶的黑色复合涂层,表征了复合涂层表面形貌,测定了复合涂层粉末的光谱吸收性能、物相结构、化学价态以及光催化性能。研究结果表明:涂层为2～5μm球体堆积成的多孔结构,在整个可见光区具有较强的吸收能力。脉冲激光溅射喷涂过程中,分子筛高温熔融急冷转变为非晶态结构,TiO_2则由锐钛矿型转变为金红石型;其中Ti^(4+)离子部分被还原为Ti^(3+)离子,缩小了禁带宽度。脉冲激光溅射喷涂技术实现了黑色纳米TiO_2快速负载,且在全光谱和可见光条件下仍表现出良好的光催化能力。To achieve effective load of black TiO2 nanoparticles and improve the practical application ability,the pulsed laser spraying was proposed.The composite coating was prepared on quartz glass substrate,which consisted of amorphous molecular sieve and rutile TiO2 nanocrystals.The surface morphology of the composite coating was characterized,and a series of test about composite coating powder was conducted including absorption properties,phase structure,chemical valence,and photocatalytic properties.The results show that the coating is porous structure packed with 2-5 μm ball and has strong absorptive capacity in the visible region.In the process of pulsed laser sputtering,the molecular sieve changed to amorphous structure,and TiO2 changed from anatase to rutile type.Ti^4+ ion was reduced to Ti^3+ ion,which resulted in reduced band-gap.The pulsed laser spraying technology achieves the fast load of the black nano TiO2,which still has good photocatalytic ability under the full spectrum and visible light conditions.

关 键 词：纳秒脉冲激光 溅射喷涂 黑色TiO2 纳米材料负载 

分 类 号：TQ134[化学工程—无机化工]