Electrochemically Assisted Sol−Gel Process for the Synthesis of Polysiloxane Films Incorporating Phenothiazine Dyes Analogous to Methylene Blue. Structure and Ion-Transport Properties of the Films via Spectroscopic and Electrochemical Characterization

1997 ◽  
Vol 9 (11) ◽  
pp. 2621-2631 ◽  
Author(s):  
Nicholas Leventis ◽  
Muguo Chen
Keyword(s):  
Methylene Blue ◽  
Ion Transport ◽  
Transport Properties ◽  
Sol Gel ◽  
Electrochemical Characterization ◽  
Phenothiazine Dyes ◽  
Sol Gel Process

scholarly journals Separating bulk from grain boundary Li ion conductivity in the sol–gel prepared solid electrolyte Li1.5Al0.5Ti1.5(PO4)3

2015 ◽  
Vol 3 (42) ◽  
pp. 21343-21350 ◽  
Author(s):  
Stefan Breuer ◽  
Denise Prutsch ◽  
Qianli Ma ◽  
Viktor Epp ◽  
Florian Preishuber-Pflügl ◽  
...  
Keyword(s):  
Impedance Spectroscopy ◽  
Grain Boundary ◽  
Ion Transport ◽  
Solid Electrolyte ◽  
Transport Properties ◽  
Low Temperatures ◽  
Sol Gel ◽  
Ion Conductivity ◽  
Li Ion ◽  
Ceramic Electrolytes

Impedance spectroscopy measurements down to very low temperatures allowed for resolving bulk ion transport properties in highly conducting ceramic electrolytes.

scholarly journals A Comparison of Different A-, A-B-, and B-Site Incorporated in (Ba0.5Sr0.5)TiO3 on Photocatalytic Application

2015 ◽  
Vol 2015 ◽  
pp. 1-8
Author(s):  
Tassanee Tubchareon ◽  
Rachan Klaysri ◽  
Piyasan Praserthdam
Keyword(s):  
Methylene Blue ◽  
Structural Modification ◽  
Oxygen Vacancies ◽  
Sol Gel ◽  
Lattice Oxygen ◽  
Photocatalytic Decolorization ◽  
Chemisorbed Oxygen ◽  
Photocatalytic Application ◽  
Sol Gel Process ◽  
A Site

The structural modification of Ba0.5Sr0.5TiO3 (BST) nanocatalyst was successfully synthesized via sol-gel process. The BST catalyst was modified by A-site (A-BST), A-B-site (A-B-BST), and B-site (B-BST) in order to investigate the effect of structurally modified BST catalyst for photocatalytic decolorization of methylene blue. The structurally modified BST catalysts can increase the nonradiation energy such as phonon energy compared to that of BST one. The partial incorporation of the A-BST catalyst was evidenced by the higher-ordered structure by increasing number of Ti4+ ions and the lattice oxygen. The A-B-BST and A-BST catalysts were given more electron-transfer in the TiO6 than that of BST and B-BST catalysts, respectively. The A-B-BST catalyst promoted the oxidation of the lattice oxygen by holes capturing to form the chemisorbed oxygen, presenting the highest photobleaching activity of methylene blue. On the other hand, more oxygen vacancies recombination of BST catalyst compared to that of structurally modified BST catalysts presented the reduction of photocatalytic activity.

Study on Degradation of Dyes Wastewater by N-Doped TiO2

2013 ◽  
Vol 634-638 ◽  
pp. 263-266
Author(s):  
Chao Lin Miao ◽  
Hui Wang
Keyword(s):  
Methylene Blue ◽  
Catalytic Activity ◽  
Sol Gel ◽  
Ambient Air ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
Solar Light ◽  
Solar Light Irradiation ◽  
Degradation Of Dyes ◽  
Sol Gel Process

nano-sized TiO2 doped with different percentage of N was prepared quickly by sol-gel process，and the photocatalytic properties of degradation dyes wastewaters were studied under stimulant solar light irradiation in the ambient air. Some properties of photocatalysts were characterized by the means of XPS, UV-Vis ,XRD, and degradation loss. The results showed the catalytic activity was the best when the doped of nitrogen was 0.5% at calcinated 400°C，and the degradation of the methylene blue was almost completed.

Electrochemical characterization of a lithiated mixed nickel-cobalt oxide (LiNi0.5Co0.5O2) prepared by sol-gel process

Ionics ◽  
1997 ◽  
Vol 3 (5-6) ◽  
pp. 390-395 ◽  
Author(s):  
F. Croce ◽  
A. Deptula ◽  
W. Lada ◽  
R. Marassi ◽  
T. Olczak ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Sol Gel ◽  
Electrochemical Characterization ◽  
Nickel Cobalt ◽  
Sol Gel Process ◽  
Nickel Cobalt Oxide

Photocatalytic Degradation of Methylene Blue Using Immobilized Nanoparticles of TiO2 Supported by SBA-15 Surface

2010 ◽  
Vol 146-147 ◽  
pp. 1801-1805 ◽  
Author(s):  
You Ji Li ◽  
Wei Chen ◽  
Lei Yong Li ◽  
Ming Yuan Ma
Keyword(s):  
Methylene Blue ◽  
Uv Light ◽  
High Surface ◽  
Sol Gel ◽  
Band Gap Energy ◽  
Pure Tio2 ◽  
Surface Areas ◽  
Vis Spectroscopy ◽  
Sol Gel Process ◽  
Blue Solution

TiO2-SBA-15 surface (TSS) composites were prepared by the supercritical pretreatment and then sol-gel process with using paraffin used as a clogging agent. The as-grown materials were characterized by using X-ray diffraction, UV-VIS spectroscopy and nitrogen absorption. The photocatalytic activities of TSS were evaluated by quantifying the degradation of methylene blue solution under UV light. Compared with TiO2-SBA-15 (TS) composites prepared only by the sol–gel method, TSS composites remain in mesostructure with high surface areas due to clogging effect of paraffin on SBA-15 cavity. Additionally, the small crystalline size of TiO2 in TSS is attributed to the fact that silica support baffles the agglomeration ofTiO2 nanoparticles. In comparison of TS composites and pure TiO2, higher photocatalytic activity of TSS is obtained and mainly attributed to larger surface areas and greater band-gap energy.

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