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Electrochemical construction of hierarchically ordered CdSe-sensitized TiO2 nanotube arrays : towards versatile photoelectrochemical water splitting and photoredox applications

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Electrochemical construction of hierarchically ordered CdSe-sensitized TiO2 nanotube arrays : towards versatile photoelectrochemical water splitting and photoredox applications
นักวิจัย : Xiao, Fang-Xing , Miao, Jianwei , Wang, Hsin-Yi , Yang, Hongbin , Chen, Jiazang , Liu, Bin
คำค้น : DRNTU::Engineering::Materials::Nanostructured materials , DRNTU::Science::Biological sciences::Biochemistry
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Xiao, F.-X., Miao, J., Wang, H.-Y., Yang, H., Chen, J., & Liu, B. (2014). Electrochemical construction of hierarchically ordered CdSe-sensitized TiO 2 nanotube arrays : towards versatile photoelectrochemical water splitting and photoredox applications. Nanoscale, 6(12), 6727-6737. , http://hdl.handle.net/10220/24414 , http://dx.doi.org/10.1039/C4NR01380H
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Nanoscale
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Recent years have witnessed quite a number of worldwide efforts for fabricating CdSe/TiO2 nanotube arrays (CdSe/TNTAs) nanocomposites; however, the construction of a well-defined CdSe/TNTAs binary nanostructure for versatile photocatalytic and photoelectrochemical applications still poses a big challenge. In this work, a hierarchically ordered CdSe/nanoporous TiO2 nanotube arrays (CdSe/NP-TNTAs) hybrid nanostructure was fabricated through a facile electrochemical deposition strategy. The combined structural and morphological characterizations show that the CdSe ingredients, consisting of clusters of quantum dots, were uniformly assembled on the inner and outer surfaces of the NP-TNTAs framework. It was demonstrated that the CdSe/NP-TNTAs heterostructure could be utilized as an efficient photoanode for photoelectrochemical water splitting; moreover, it could be used as a multifunctional photocatalyst for photoredox applications, including the photocatalytic oxidation of organic dye pollutants and the selective reduction of aromatic nitro compounds under visible light irradiation. Furthermore, photoelectrochemical and photocatalytic mechanisms over the CdSe/NP-TNTAs heterostructure were elucidated. In addition, the predominant active species during the photocatalytic process were systematically explored and unequivocally determined. It is hoped that this work could promote further interest in the fabrication of various one dimensional NP-TNTAs-based composite materials and their applications to photoelectrochemical water splitting and photocatalytic selective redox applications.

บรรณานุกรม :
Xiao, Fang-Xing , Miao, Jianwei , Wang, Hsin-Yi , Yang, Hongbin , Chen, Jiazang , Liu, Bin . (2557). Electrochemical construction of hierarchically ordered CdSe-sensitized TiO2 nanotube arrays : towards versatile photoelectrochemical water splitting and photoredox applications.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xiao, Fang-Xing , Miao, Jianwei , Wang, Hsin-Yi , Yang, Hongbin , Chen, Jiazang , Liu, Bin . 2557. "Electrochemical construction of hierarchically ordered CdSe-sensitized TiO2 nanotube arrays : towards versatile photoelectrochemical water splitting and photoredox applications".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xiao, Fang-Xing , Miao, Jianwei , Wang, Hsin-Yi , Yang, Hongbin , Chen, Jiazang , Liu, Bin . "Electrochemical construction of hierarchically ordered CdSe-sensitized TiO2 nanotube arrays : towards versatile photoelectrochemical water splitting and photoredox applications."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Xiao, Fang-Xing , Miao, Jianwei , Wang, Hsin-Yi , Yang, Hongbin , Chen, Jiazang , Liu, Bin . Electrochemical construction of hierarchically ordered CdSe-sensitized TiO2 nanotube arrays : towards versatile photoelectrochemical water splitting and photoredox applications. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.