Enhancing Visible Light Photo-oxidation of Water with TiO2 Nanowire Arrays via Cotreatment with H2 and NH3: Synergistic Effects between Ti3+ and N

2012 ◽  
Vol 134 (8) ◽  
pp. 3659-3662 ◽  
Author(s):  
Son Hoang ◽  
Sean P. Berglund ◽  
Nathan T. Hahn ◽  
Allen J. Bard ◽  
C. Buddie Mullins
Keyword(s):  
Visible Light ◽  
Synergistic Effects ◽  
Nanowire Arrays ◽  
Photo Oxidation ◽  
Tio2 Nanowire

Significantly Enhanced Visible Light Photoelectrochemical Activity in TiO2 Nanowire Arrays by Nitrogen Implantation

Nano Letters ◽  
2015 ◽  
Vol 15 (7) ◽  
pp. 4692-4698 ◽  
Author(s):  
Gongming Wang ◽  
Xiangheng Xiao ◽  
Wenqing Li ◽  
Zhaoyang Lin ◽  
Zipeng Zhao ◽  
...  
Keyword(s):  
Visible Light ◽  
Nanowire Arrays ◽  
Nitrogen Implantation ◽  
Photoelectrochemical Activity ◽  
Tio2 Nanowire

scholarly journals Hybrid ZnO/MoS2 Core/Sheath Heterostructures for Photoelectrochemical Water Splitting

Applied Nano ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 148-161
Author(s):  
Katerina Govatsi ◽  
Aspasia Antonelou ◽  
Labrini Sygellou ◽  
Stylianos G. Neophytides ◽  
Spyros N. Yannopoulos
Keyword(s):  
Visible Light ◽  
Wide Band ◽  
Nanowire Arrays ◽  
Maximum Efficiency ◽  
Light Illumination ◽  
Wide Band Gap ◽  
Long Term Stability ◽  
Visible Light Illumination ◽  
Nanowire Surface ◽  
Wide Range

The rational synthesis of semiconducting materials with enhanced photoelectrocatalytic efficiency under visible light illumination is a long-standing issue. ZnO has been systematically explored in this field, as it offers the feasibility to grow a wide range of nanocrystal morphology; however, its wide band gap precludes visible light absorption. We report on a novel method for the controlled growth of semiconductor heterostructures and, in particular, core/sheath ZnO/MoS2 nanowire arrays and the evaluation of their photoelectrochemical efficiency in oxygen evolution reaction. ZnO nanowire arrays, with a narrow distribution of nanowire diameters, were grown on FTO substrates by chemical bath deposition. Layers of Mo metal at various thicknesses were sputtered on the nanowire surface, and the Mo layers were sulfurized at low temperature, providing in a controlled way few layers of MoS2, in the range from one to three monolayers. The heterostructures were characterized by electron microscopy (SEM, TEM) and spectroscopy (XPS, Raman, PL). The photoelectrochemical properties of the heterostructures were found to depend on the thickness of the pre-deposited Mo film, exhibiting maximum efficiency for moderate values of Mo film thickness. Long-term stability, in relation to similar heterostructures in the literature, has been observed.

A flexible electrode of TiO2 nanowire arrays modified with graphene for solid-state cable-type supercapacitors

Ionics ◽  
2019 ◽  
Vol 26 (2) ◽  
pp. 971-979 ◽  
Author(s):  
Jinghao Huo ◽  
Yujia Xue ◽  
Cheng Cheng ◽  
Shouwu Guo
Keyword(s):  
Solid State ◽  
Nanowire Arrays ◽  
Flexible Electrode ◽  
Tio2 Nanowire

Visible light induced photo-oxidation of water. Formation of intermediary hydroxyl radicals through the photoexcited triplet state of perfluorophenazine

1997 ◽  
Vol 93 (2) ◽  
pp. 221-229 ◽  
Author(s):  
Takayuki Kitamura ◽  
Hiroyuki Fudemoto ◽  
Yuji Wada ◽  
Kei Murakoshi ◽  
Mitsuhiro Kusaba ◽  
...  
Keyword(s):  
Visible Light ◽  
Triplet State ◽  
Hydroxyl Radicals ◽  
Photo Oxidation ◽  
Water Formation

Catechol-modified hyaluronic acid: in situ-forming hydrogels by auto-oxidation of catechol or photo-oxidation using visible light

2017 ◽  
Vol 74 (10) ◽  
pp. 4069-4085 ◽  
Author(s):  
Takeshi Sato ◽  
Takao Aoyagi ◽  
Mitsuhiro Ebara ◽  
Rachel Auzély-Velty
Keyword(s):  
Hyaluronic Acid ◽  
Visible Light ◽  
Photo Oxidation ◽  
In Situ Forming ◽  
In Situ Forming Hydrogels
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