Hydrothermal growth of nanorod arrays and in situ conversion to nanotube arrays for highly efficient Ag-sensitized photocatalyst
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- 英文论文题名：Hydrothermal growth of nanorod arrays and in situ conversion to nanotube arrays for highly efficient Ag-sensitized photocatalyst
- 论文作者：Jiajia Tao ; Zezhou Gong ; Guang Yao ; Yunlang Cheng ; Miao Zhang ; Jianguo Lv ; Shiwei Shi ; Gang He ; Xiaoshuang Chen ; Zhaoqi Sun
- 英文论文作者：Jiajia Tao ; Zezhou Gong ; Guang Yao ; Yunlang Cheng ; Miao Zhang ; Jianguo Lv ; Shiwei Shi ; Gang He ; Xiaoshuang Chen ; Zhaoqi Sun ; School of Physics & Materials Science ; Anhui University ; School of Electronic & Information Engineering ; Hefei Normal University ; National Laboratory for Infrared Physics ; Shanghai Institute of Technical Physics ; Chinese Academy of Sciences
- 年：2016
- 作者机构：School of Physics & Materials Science, Anhui University;School of Electronic & Information Engineering, Hefei Normal University;National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics,Chinese Academy of Sciences;
- 英文论文关键词：Ag-TiO_2 NTAs ; Chemical etching ; Surface sensitization ; Photocatalyst
- 会议召开时间：2016-10-21
- 会议录名称：安徽省第四届（2016年）“卓凌杯”真空科技青年创新大赛暨学术研讨会论文集
- 语种：英文
- 分类号：TB383.1;O643.36
- 学会代码：AHZK
- 会议名称：安徽省第四届（2016年）“卓凌杯”真空科技青年创新大赛暨学术研讨会
- 会议地点：中国安徽安庆
- 主办单位：安徽省真空学会
- 学会名称：安徽省真空学会
- 页数：18
- 文件大小：1601k
- 原文格式：D
- 会议级别：地方
摘要
TiO_2 nanorod arrays(NRAs) were hydrothermally grown on transparent fluorine-doped tin oxide(FTO) substrates, and were converted into nanotubes(NTAs)by hydrothermally in situ etching. Ag nanoparticles(NPLs) were sensitized on the NRAs and NTAs by a simple photodeposition approach( products were denoted as Ag-TiO_2 NRAs and NTAs). The Ag-TiO_2 NTAs samples possessed a large specific surface area(116 m2g-1) with Ag NPLs homogeneously dispersed among the TiO_2 NTAs. The Ag-TiO_2 NTAs exhibited significantly enhanced photocatalytic activities(98.8%) in degradation of methyl orange(MO) compared to Ag-TiO_2 NRAs(92.6%),TiO_2 NTAs(86.2%), and NRAs(81.7%). The enhanced photocatalytic activities can be attributed to the large specific surface area of TiO_2 NTAs and strong surface plasmon resonance(SPR) of Ag NPLs. In addition, Ag-TiO_2 NTAs showed easy recovery feature in the recovery process and high durability in the recycling test,which was expected to be an efficient and practical photocatalyst used for waste water treatment.
TiO_2 nanorod arrays(NRAs) were hydrothermally grown on transparent fluorine-doped tin oxide(FTO) substrates, and were converted into nanotubes(NTAs)by hydrothermally in situ etching. Ag nanoparticles(NPLs) were sensitized on the NRAs and NTAs by a simple photodeposition approach( products were denoted as Ag-TiO_2 NRAs and NTAs). The Ag-TiO_2 NTAs samples possessed a large specific surface area(116 m2g-1) with Ag NPLs homogeneously dispersed among the TiO_2 NTAs. The Ag-TiO_2 NTAs exhibited significantly enhanced photocatalytic activities(98.8%) in degradation of methyl orange(MO) compared to Ag-TiO_2 NRAs(92.6%),TiO_2 NTAs(86.2%), and NRAs(81.7%). The enhanced photocatalytic activities can be attributed to the large specific surface area of TiO_2 NTAs and strong surface plasmon resonance(SPR) of Ag NPLs. In addition, Ag-TiO_2 NTAs showed easy recovery feature in the recovery process and high durability in the recycling test,which was expected to be an efficient and practical photocatalyst used for waste water treatment.
TiO_2 nanorod arrays(NRAs) were hydrothermally grown on transparent fluorine-doped tin oxide(FTO) substrates, and were converted into nanotubes(NTAs)by hydrothermally in situ etching. Ag nanoparticles(NPLs) were sensitized on the NRAs and NTAs by a simple photodeposition approach( products were denoted as Ag-TiO_2 NRAs and NTAs). The Ag-TiO_2 NTAs samples possessed a large specific surface area(116 m2g-1) with Ag NPLs homogeneously dispersed among the TiO_2 NTAs. The Ag-TiO_2 NTAs exhibited significantly enhanced photocatalytic activities(98.8%) in degradation of methyl orange(MO) compared to Ag-TiO_2 NRAs(92.6%),TiO_2 NTAs(86.2%), and NRAs(81.7%). The enhanced photocatalytic activities can be attributed to the large specific surface area of TiO_2 NTAs and strong surface plasmon resonance(SPR) of Ag NPLs. In addition, Ag-TiO_2 NTAs showed easy recovery feature in the recovery process and high durability in the recycling test,which was expected to be an efficient and practical photocatalyst used for waste water treatment.
引文
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