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铕掺杂纳米二氧化钛透明光触媒乳液的制备及光催化性能研究

孙建红 眭慧东 王紫薇 王坤 闫勇 卢琪 李玲

孙建红, 眭慧东, 王紫薇, 王坤, 闫勇, 卢琪, 李玲. 铕掺杂纳米二氧化钛透明光触媒乳液的制备及光催化性能研究[J]. 中国光学(中英文), 2017, 10(6): 760-767. doi: 10.3788/CO.20171006.0760
引用本文: 孙建红, 眭慧东, 王紫薇, 王坤, 闫勇, 卢琪, 李玲. 铕掺杂纳米二氧化钛透明光触媒乳液的制备及光催化性能研究[J]. 中国光学(中英文), 2017, 10(6): 760-767. doi: 10.3788/CO.20171006.0760
SUN Jian-hong, SUI Hui-dong, WANG Zi-wei, WANG Kun, YAN Yong, LU Qi, LI Ling. Preparation of europium-doped nano-TiO2 transparent photocatalyst emulsion and photocatalytic performance[J]. Chinese Optics, 2017, 10(6): 760-767. doi: 10.3788/CO.20171006.0760
Citation: SUN Jian-hong, SUI Hui-dong, WANG Zi-wei, WANG Kun, YAN Yong, LU Qi, LI Ling. Preparation of europium-doped nano-TiO2 transparent photocatalyst emulsion and photocatalytic performance[J]. Chinese Optics, 2017, 10(6): 760-767. doi: 10.3788/CO.20171006.0760

铕掺杂纳米二氧化钛透明光触媒乳液的制备及光催化性能研究

doi: 10.3788/CO.20171006.0760
基金项目: 

河北大学研究生创新资助项目 X201730

河北大学2017年国家级大学生创新创业计划训练项目 201710075002

河北大学2017年国家级大学生创新创业计划训练项目 201710075003

河北大学2017年校级大学生创新创业计划训练项目 2017114

海南大学热带岛屿资源先进材料教育部重点实验室开放课题 AM2017-29

河北大学实验室开放项目 sy201639

详细信息
    作者简介:

    孙建红(1974-), 女, 河北保定人, 硕士, 副研究员, 主要从事应用化学及信息服务方面的研究。E-mail:lilinghbu@163.com

    李玲(1980—), 女,河北保定人,博士,副教授,主要从事纳米光电材料方面的研究

    通讯作者:

    李玲, E-mail:lilinghbu@163.com

  • 中图分类号: X592

Preparation of europium-doped nano-TiO2 transparent photocatalyst emulsion and photocatalytic performance

Funds: 

Postgraduate Students′ Innovative Fund in Hebei University X201730

The National College Students′ Innovative Undertaking Plan Training Program of Hebei University in 2017 201710075002

The National College Students′ Innovative Undertaking Plan Training Program of Hebei University in 2017 201710075003

The College Students′ Innovative Undertaking Plan Training Program of Hebei University in 2017 2017114

Open Foundation of Key Laboratory of Advanced Materials of Tropical Island Resources(Hainan University), Ministry of Education China AM2017-29

Hebei University Laboratory Open Project sy201639

More Information
  • 摘要: 本文采用常温络合-控制水解法,以TiCl4,有机羧酸,氨水,硝酸铕,D-山梨醇等为主要实验药品,制备了Eu掺杂纳米TiO2光触媒乳液。以酸性红3R染料为待降解物,分别考察了不同条件下制备的TiO2光触媒乳液在太阳光模拟器生成光照射下的光催化性能。此外,还考察了Eu掺杂纳米二氧化钛透明光触媒乳液对于不同浓度染料的光催化性能。通过酸性红3R染料的降解实验,研究了影响Eu掺杂纳米二氧化钛透明光触媒乳液光催化活性的因素。通过X射线衍射仪(XRD)、纳米激光粒度分析仪、紫外可见分光光度计(UV-Vis)等对样品进行表征。结果表明:样品的平均粒度为4.1 nm左右,晶型为锐钛矿,样品的吸收光谱可拓宽至可见光区。当Eu掺杂量为0.3%,pH值为6,回流时间是15 min时,制备的Eu掺杂纳米二氧化钛光触媒乳液的光催化性能最佳。该光触媒乳液经太阳光照射1 h之后,对浓度为25 mg/L的酸性红3R模型反应物的降解效率最高,达到97%以上。

     

  • 图 1  1 500 ℃烧结纯的TiO2(a)和Eu掺杂的TiO2(b)的XRD谱

    Figure 1.  XRD spectra of pure TiO2(a) and TiO2-Eu(b)

    图 2  不同Eu掺杂量时的TiO2光触媒粒径示意图

    Figure 2.  Particle size diagram of TiO2 photocatalyst with different Eu doping contents

    图 3  样品粒径尺度分布图

    Figure 3.  Scatter diagram of sample particle diameter

    图 4  Eu掺杂TiO2样品EDS图谱

    Figure 4.  EDS diagram of TiO2-Eu

    图 5  Eu掺杂TiO2样品的XPS图谱

    Figure 5.  XPS diagram of TiO2-Eu

    图 6  纯TiO2(a)和TiO2-Eu(b)的UV-Vis吸收图谱

    Figure 6.  UV-Vis absorption spectra of pure TiO2(a) and TiO2-Eu(b)

    图 7  不同Eu掺杂量光催化剂的降解曲线

    Figure 7.  Degradation curves of photocatalyst with different Eu doping contents

    图 8  不同初始浓度时染料的降解曲线

    Figure 8.  Degradation curves of AR 3R with different initial concentration

    图 9  回流时间对TiO2-Eu样品降解效果的影响

    Figure 9.  Influence of reflux time on degradation rate of the sample TiO2-Eu

    图 10  Eu-TiO2光触媒溶液在不同pH值时光降解率的变化

    Figure 10.  Degradation varies with pH value for Eu-TiO2 photocatalyst

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  • 收稿日期:  2017-04-11
  • 修回日期:  2017-06-13
  • 刊出日期:  2017-12-01

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