原位水热合成硼掺杂TiO_(2)及其可见光分解水制氢性能研究  

In-Situ Hydrothermal Synthesis of Boron Doped TiO_(2) for Photocatalytic Hydrogen Production from Water Splitting Under Visible Light

作　　者：康峻 赵丹崎 常峻华 范华宁 姜仁政 谢英鹏 KANG Jun;ZHAO Dan-qi;CHANG Jun-hua;FAN Hua-ning;JIANG Ren-zheng;XIE Ying-peng(Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]沈阳化工大学化学工程学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2022年第2期117-122,共6页Journal of Shenyang University of Chemical Technology

基　　金：中国博士后科学基金面上项目(2017M621137);辽宁省高等学校创新人才支持计划(LR2018074);辽宁省自然科学基金指导计划(20180550832);沈阳市中青年科技创新人才支持计划项目(RC170217);大连理工大学精细化工国家重点实验室开放基金项目(KF1708)。

摘　　要：TiO_(2)半导体具有氧化能力强、无毒、化学稳定性好且价格低廉等优点,在光催化领域得到了广泛应用,但其也存在只能吸收紫外光的缺点.本研究以二硼化钛为原料,采用原位水热过程制备了硼掺杂TiO_(2),通过调控水热温度得到了不同硼掺杂量的TiO_(2).通过XRD、Raman、SEM、FT-IR及UV-Vis等测试手段表征了硼掺杂TiO_(2)的结构特征,并测试了其在可见光下分解水制氢性能.结果表明:水热温度对TiO_(2)的晶体结构、电子结构和表面形貌有显著影响;160℃下水热制备的硼掺杂TiO_(2)由于具备完整的球形形貌和较强的可见光吸收能力,显示出最好的光解水产氢性能(396.6μmol·h^(-1)).TiO_(2)has been widely used in the field of photocatalysis owing to its strong oxidation ability, non-toxic, good chemical stability and low price.However, TiO_(2)can only absorb ultraviolet light.In this paper, boron-doped TiO_(2)was prepared through in-situ hydrothermal process at different temperatures, using titanium diboride as the precursor.The structural characteristics of boron-doped TiO_(2)were characterized by XRD,Raman, SEM,FT-IR and UV-Vis.And the photocatalytic hydrogen evolution activity of boron-doped TiO_(2)was tested under visible light.The results show that the hydrothermal temperature has a significant effect on the crystal structure, electronic structure and surface morphology of boron-doped TiO_(2).Boron doped TiO_(2)prepared by hydrothermal method at 160℃ has the highest photocatalytic hydrogen evolution rate(396.6 μmol·h^(-1))due to its complete spherical morphology and high visible light absorption capacity.

关 键 词：光催化 TiO_(2) 硼掺杂 氢气 

分 类 号：O643.32[理学—物理化学]