scholarly journals Electrochemical Monitoring of the Formation of Self Organized Monolayers: Octadecylphosphonic Acid on Anodically Grown Titanium Dioxide

2009 ◽  
Vol 60 (3) ◽  
pp. 170-173 ◽  
Author(s):  
Felix SCHMIDT-STEIN ◽  
Florian KELLNER ◽  
Viktoria WAGENER ◽  
Robert HAHN ◽  
Julia KUNZE ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Self Organized ◽  
Electrochemical Monitoring ◽  
Octadecylphosphonic Acid

scholarly journals Recent Advances in Electrochemical Monitoring of Chromium

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5153
Author(s):  
Nazha Hilali ◽  
Hasna Mohammadi ◽  
Aziz Amine ◽  
Nadia Zine ◽  
Abdelhamid Errachid
Keyword(s):  
Titanium Dioxide ◽  
Hexavalent Chromium ◽  
Tin Oxide ◽  
Metallic Nanoparticles ◽  
Carbon Nanomaterials ◽  
Electrochemical Sensors ◽  
Chromium Species ◽  
Recent Advances ◽  
Chromium Determination ◽  
Electrochemical Monitoring

The extensive use of chromium by several industries conducts to the discharge of an immense quantity of its various forms in the environment which affects drastically the ecological and biological lives especially in the case of hexavalent chromium. Electrochemical sensors and biosensors are useful devices for chromium determination. In the last five years, several sensors based on the modification of electrode surface by different nanomaterials (fluorine tin oxide, titanium dioxide, carbon nanomaterials, metallic nanoparticles and nanocomposite) and biosensors with different biorecognition elements (microbial fuel cell, bacteria, enzyme, DNA) were employed for chromium monitoring. Herein, recent advances related to the use of electrochemical approaches for measurement of trivalent and hexavalent chromium from 2015 to 2020 are reported. A discussion of both chromium species detections and speciation studies is provided.

Facile method to synthesize a carbon layer embedded into titanium dioxide nanotubes with metal oxide decoration for electrochemical applications

2015 ◽  
Vol 3 (47) ◽  
pp. 23754-23759 ◽  
Author(s):  
Yan-Yan Song ◽  
Ya-Hang Li ◽  
Jing Guo ◽  
Zhi-Da Gao ◽  
Ying Li
Keyword(s):  
Titanium Dioxide ◽  
Metal Oxide ◽  
Carbon Layer ◽  
Titanium Dioxide Nanotubes ◽  
Economical Method ◽  
Self Organized ◽  
Pyrolysis Method ◽  
Electrochemical Applications ◽  
One Step

We report a facile and economical method to form a carbon layer embedded into self-organized titanium dioxide nanotubes (C/TiO2 NTs) with a double-walled morphology using a one-step pyrolysis method.

Visible Light Sensitization of Titanium Dioxide with Self-Organized Porphyrins:  Organic P−I−N Solar Cells

1999 ◽  
Vol 103 (14) ◽  
pp. 2702-2708 ◽  
Author(s):  
Jeannette Wienke ◽  
Tjeerd J. Schaafsma ◽  
Albert Goossens
Keyword(s):  
Titanium Dioxide ◽  
Solar Cells ◽  
Visible Light ◽  
Organic P ◽  
Self Organized

Analysis of Photocurrent Responses of Anodized TiO2 Nanotubes Synthesized from Different Organic Electrolytes

2015 ◽  
Vol 1109 ◽  
pp. 429-433
Author(s):  
Syazwan Hanani Meriam Suhaimy ◽  
Chin Wei Lai ◽  
Sharifah Bee Abd Hamid ◽  
Mohd Rafie Johan ◽  
M.R. Hasan
Keyword(s):  
Titanium Dioxide ◽  
Surface Morphology ◽  
Ethylene Glycol ◽  
Anodic Oxidation ◽  
Electrochemical Anodization ◽  
Photocurrent Response ◽  
Sem Images ◽  
Organic Electrolytes ◽  
Self Organized ◽  
Sem Analyses

Self-organized titanium dioxide (TiO2) nanotubes (NTs) arrays were successfully fabricated via electrochemical anodization of titanium (Ti) foil in an organic electrolyte containing 5wt% of fluoride content. The present work compares two different organic electrolytes (glycerol and ethylene glycol) for the growth of self-organized TiO2 nanotubes by using anodic oxidation strategy. The resultant TiO2 NTs were then subjected to thermal annealing for manipulating the crystalline structure. The SEM images indicated changes in surface morphology of the TiO2 NTs in different electrolytes. It was found that the NT’s dimensional was 56.00nm based on the SEM analyses. Both samples exhibited good photocurrent response; however, TiO2 NTs synthesized in ethylene glycol electrolyte showed promising photocurrent response of 0.385 mA.

Piezoelectric Behavior of Self-Organized Titanium Dioxide Nanotubes

2012 ◽  
Vol 4 (8) ◽  
pp. 801-807
Author(s):  
Yong X. Gan ◽  
Kai Ren ◽  
Lusheng Su ◽  
Chuan-Chiang Chen ◽  
Lihua Zhang
Keyword(s):  
Titanium Dioxide ◽  
Titanium Dioxide Nanotubes ◽  
Self Organized ◽  
Piezoelectric Behavior

Preparation of Visible Light Responsive Photocatalyst from Titanium Dioxide Nanotubes Modified with Antimony Trisulfide

2018 ◽  
Vol 792 ◽  
pp. 98-103
Author(s):  
Narudon Saijaioup ◽  
Puangrat Kajitvitchyanukul ◽  
Apichon Watcharenwong
Keyword(s):  
Titanium Dioxide ◽  
Visible Light ◽  
Anatase Phase ◽  
Visible Region ◽  
Light Response ◽  
Ethanol Solution ◽  
Halogen Lamp ◽  
X Ray ◽  
Self Organized ◽  
Anodization Process

Titanium dioxide (TiO2) nanotubes with a highly ordered structure were grown by a self-organized anodization process. The photodeposition process was used to improve the visible light response of titanium dioxide (TiO2) nanotubes. The irradiation was carried out with 500 W halogen lamp for 1, 5, 15, 30 and 60 min in the mixed ethanol solution of antimony trisulfide (Sb2S3). The obtained samples were annealed at 250 °C for 30 min. The morphology of the fabricated sample was characterized by a field emission scanning electron microscope (FE-SEM). The phase of samples was determined by X- ray diffractometer (XRD). The weight percentages of a component in the sample were measured by X-ray fluorescence spectrometry (XRF). UV-Vis diffuse reflectance spectra (DRS) of the samples were recorded. All titanium dioxide (TiO2) nanotube samples prepared by anodization process were anatase phase. All composite titanium dioxide (TiO2) nanotube /Sb2S3samples were a crystalline phase. The percentage of Sb and S increase with increasing of photodeposition’s time. The increasing photodeposition of antimony trisulfide (Sb2S3) on titanium (TiO2) nanotubes from 1 to 60 min lead to increasing of photoabsorption property of the material in the visible region.

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