Rapid low-temperature solution growth of ZnO:Co nanorod arrays with controllable visible light absorption

CrystEngComm ◽  
2017 ◽  
Vol 19 (14) ◽  
pp. 1938-1946 ◽  
Author(s):  
Jan Kegel ◽  
Jennifer Halpin ◽  
Fathima Laffir ◽  
Ian M. Povey ◽  
Martyn E. Pemble
Keyword(s):  
Low Temperature ◽  
Visible Light ◽  
Light Absorption ◽  
Solution Growth ◽  
Nanorod Arrays ◽  
Visible Light Absorption ◽  
Temperature Solution

Low-Temperature Solution Growth of ZnO Nanocone/Highly Oriented Nanorod Arrays on Copper

2014 ◽  
Vol 118 (41) ◽  
pp. 12002-12007 ◽  
Author(s):  
Yongmei Xia ◽  
Youfa Zhang ◽  
Xinquan Yu ◽  
Feng Chen
Keyword(s):  
Low Temperature ◽  
Solution Growth ◽  
Nanorod Arrays ◽  
Temperature Solution

Enhanced visible light absorption and photocatalytic activity of [KNbO3]1−x[BaNi0.5Nb0.5O3−δ]x synthesized by sol–gel based Pechini method

RSC Advances ◽  
2016 ◽  
Vol 6 (85) ◽  
pp. 82409-82416 ◽  
Author(s):  
Ping Wu ◽  
Guoming Wang ◽  
Ruizhi Chen ◽  
Yixin Guo ◽  
Xueming Ma ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Low Temperature ◽  
Visible Light ◽  
Light Absorption ◽  
Photocatalytic Performance ◽  
Pechini Method ◽  
Sol Gel ◽  
Visible Light Absorption ◽  
Gel Method ◽  
Visible Light Photocatalytic

[KNbO3]1−x[BaNi0.5Nb0.5O3−δ]x were synthesized by Pechini sol–gel method at low temperature. Visible light photocatalytic performance of this material was evaluated.

Hierarchical three-dimensional branched hematite nanorod arrays with enhanced mid-visible light absorption for high-efficiency photoelectrochemical water splitting

Nanoscale ◽  
2016 ◽  
Vol 8 (25) ◽  
pp. 12697-12701 ◽  
Author(s):  
Degao Wang ◽  
Guoliang Chang ◽  
Yuying Zhang ◽  
Jie Chao ◽  
Jianzhong Yang ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
High Efficiency ◽  
Three Dimensional ◽  
Photoelectrochemical Water Splitting ◽  
Nanorod Arrays ◽  
Visible Light Absorption

Impact of Rutile Fraction on TiO2 Visible-Light Absorption and Visible-Light-Induced Photocatalytic Activity

2018 ◽  
Author(s):  
David Maria Tobaldi ◽  
Luc Lajaunie ◽  
ana caetano ◽  
nejc rozman ◽  
Maria Paula Seabra ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Light Absorption ◽  
Solid Phase ◽  
Diffraction Method ◽  
Band Alignment ◽  
Quantitative Phase Analysis ◽  
Transmission Microscopy ◽  
Visible Light Absorption ◽  
X Ray

<div>Titanium dioxide is by far the most utilised semiconductor material for photocatalytic applications. Still, it is transparent to visible-light. Recently, it has been proved that a type-II band alignment for the rutile−anatase mixture would improve its visible-light absorption.</div><div>In this research paper we thoroughly characterised the real crystalline and amorphous phases of synthesised titanias – thermally treated at different temperatures to get distinct ratios of anatase-rutile-amorphous fraction – as well as that of three commercially available photocatalytic nano-TiO2. </div><div>The structural characterisation was done via advanced X-ray diffraction method, namely the Rietveld-RIR method, to attain a full quantitative phase analysis of the specimens. The microstructure was also investigated via an advanced X-ray method, the whole powder pattern modelling. These methods were validated combining advanced aberration-corrected scanning transmission microscopy and high-resolution electron energy-loss spectroscopy. The photocatalytic activity was assessed in the liquid- and gas-solid phase (employing rhodamine B and 4-chlorophenol, and isopropanol, respectively, as the organic substances to degrade) using a light source irradiating exclusively in the visible-range.</div><div>Optical spectroscopy showed that even a small fraction of rutile (2 wt%) is able to shift to lower energies the apparent optical band gap of an anatase-rutile mixed phase. But is this enough to attain a real photocatalytic activity promoted by merely visible-light?</div><div>We tried to give a reply to that question.</div><div>Photocatalytic activity results in the liquid-solid phase showed that a high surface hydroxylation led to specimen with superior visible light-induced catalytic activity (i.e. dye and ligand-to-metal charge transfer complexes sensitisation effects). That is: not photocatalysis <i>sensu-strictu</i>.</div><div>On the other hand, the gas-solid phase results showed that a higher amount of the rutile fraction (around 10 wt%), together with less recombination of the charge carriers, were more effective for an actual photocatalytic oxidation of isopropanol.</div>

Improving Performances of Oxide Phototransistors Using a Mechano-Chemically Treated Porous Structure as The Visible Light Absorption Layer

2019 ◽  
pp. 447
Author(s):  
I Sak Lee ◽  
Bennet Nii Akwei Brown ◽  
Dongwoo Kim ◽  
Sujin Jung ◽  
Byung Ha Kang ◽  
...  
Keyword(s):  
Visible Light ◽  
Porous Structure ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Absorption Layer ◽  
Chemically Treated

Double Doping of NaTaO3 Photocatalysts with Lanthanum and Manganese for Strongly Enhanced Visible-Light Absorption

2019 ◽  
Vol 2 (10) ◽  
pp. 7518-7526 ◽  
Author(s):  
Hanggara Sudrajat ◽  
Mitsunori Kitta ◽  
Nobuyuki Ichikuni ◽  
Hiroshi Onishi
Keyword(s):  
Visible Light ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Double Doping

Carrier Engineering of Zr-mediated Ta3N5 Film as Efficient Photoanode for Solar Water Splitting

2021 ◽  
Author(s):  
Xin Zou ◽  
Xueyang Han ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  
Chun Du ◽  
...  
Keyword(s):  
Band Structure ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Photoelectrochemical Water Splitting ◽  
Promising Candidate ◽  
Visible Light Absorption ◽  
Solar Water ◽  
Solar Water Splitting

Ta3N5 is regarded as a promising candidate material with adequate visible light absorption and band structure for photoelectrochemical water splitting. However, the performance of Ta3N5 is severely limited by the...

scholarly journals Effects of Fe doping on the visible light absorption and bandgap tuning of lead-free (CsSnCl3) and lead halide (CsPbCl3) perovskites for optoelectronic applications

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035229
Author(s):  
M. I. Kholil ◽  
M. T. H. Bhuiyan ◽  
M. Atikur Rahman ◽  
M. S. Ali ◽  
M. Aftabuzzaman
Keyword(s):  
Visible Light ◽  
Light Absorption ◽  
Lead Free ◽  
Fe Doping ◽  
Visible Light Absorption ◽  
Optoelectronic Applications ◽  
Bandgap Tuning ◽  
Lead Halide

New carbon nitride close to C6N7 with superior visible light absorption for highly efficient photocatalysis

2021 ◽  
Author(s):  
Xinyu Zhao ◽  
Yingnan Zhao ◽  
Huaqiao Tan ◽  
Huiying Sun ◽  
Xing Qin ◽  
...  
Keyword(s):  
Visible Light ◽  
Light Absorption ◽  
Carbon Nitride ◽  
Visible Light Absorption ◽  
Highly Efficient

scholarly journals Intense Visible-Light Absorption in SrRuO3/C3N4 Heterostructures for the Highly Efficient Reduction of Hg(II)

ACS Omega ◽  
2021 ◽  
Author(s):  
Soha M. Albukhari ◽  
Hind Alshaikh ◽  
M. H. H. Mahmoud ◽  
Adel. A. Ismail
Keyword(s):  
Visible Light ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Highly Efficient ◽  
Efficient Reduction
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