- ZnO Nanostructures and Thin Films Grown in Aqueous Solution: Growth, Defects, and Doping

2012 ◽  
pp. 124-157
Keyword(s):  
Thin Films ◽  
Aqueous Solution ◽  
Solution Growth ◽  
Zno Nanostructures ◽  
Growth Defects

Fabrication of Double-layered ZnO Nanostructures by an Aqueous Solution Growth

2009 ◽  
Vol 46 (6) ◽  
pp. 596-601 ◽  
Author(s):  
Ki-Woong Chae ◽  
Jeong-Seog Kim ◽  
Guozhong Cao
Keyword(s):  
Aqueous Solution ◽  
Solution Growth ◽  
Zno Nanostructures

Microstructural and Luminescent Properties of ZnO Prepared by Chemical Solution Growth Method

2013 ◽  
Vol 538 ◽  
pp. 54-57
Author(s):  
Ming Ji Shi ◽  
Li Na Zhang ◽  
Lan Li Chen ◽  
Sheng Zhao Wang ◽  
Shuang Li
Keyword(s):  
Aqueous Solution ◽  
Zinc Acetate ◽  
Photoluminescence Spectrum ◽  
Luminescent Properties ◽  
Solution Growth ◽  
Experimental Result ◽  
Silicon Substrates ◽  
Zno Nanostructures ◽  
Chemical Solution ◽  
Growth Method

In this thesis, ZnO nanostructures with different morphologies were synthesized on silicon substrates by chemical solution growth method from Zinc acetate and methenamine aqueous solution at 70°C for 4 hours. Its morphologies by SEM and its crystal structures by XRD were studied．Its photoluminescence spectrum was also measured．And possible mechanisms of the growth and the photoluminescence of ZnO were proposed to explain the experimental result．

Use of Nanopillars-TiO2 Thin Films in the Photocatalytic Degradation of Bromophenol Blue from Aqueous Solution

2018 ◽  
Vol 6 (1) ◽  
pp. 22-30
Author(s):  
C. Lalhriatpuia ◽  
◽  
Thanhming liana ◽  
K. Vanlaldinpuia
Keyword(s):  
Thin Films ◽  
Aqueous Solution ◽  
Photocatalytic Activity ◽  
Photocatalytic Degradation ◽  
Batch Reactor ◽  
Bromophenol Blue ◽  
Tio2 Thin Films ◽  
Initial Concentration ◽  
Bet Specific Surface Area ◽  
Interfering Ions

The photocatalytic activity of Nanopillars-TiO2 thin films was assessed in the degradation of Bromophenol blue (BPB) dye from aqueous solution under batch reactor operations. The thin films were characterized by the XRD, SEM and AFM analytical methods. BET specific surface area and pore sizes were also obtained. The XRD data showed anatase phase of TiO2 particles with average particle size of 25.4 and 21.9 nm, for S1 and S2 catalysts respectively. The SEM and AFM images indicated the catalyst composed with Nanosized pillars of TiO2, evenly distributed on the surface of the substrate. The average height of the pillars was found to be 180 and 40 nm respectively for the S1 and S2 catalyst. The BET specific surface area and pore sizes of S1 and S2 catalyst were found to be 5.217 and 1.420 m2/g and 7.77 and 4.16 nm respectively. The photocatalytic degradation of BPB using the UV light was studied at wide range of physico-chemical parametric studies to determine the mechanism of degradation as well as the practical applicability of the technique. The batch reactor operations were conducted at varied pH (pH 4.0 to 10.0), BPB initial concentration (1.0 to 20.0 mg/L) and presence of several interfering ions, i.e., cadmium nitrate, copper sulfate, zinc chloride, sodium chloride, sodium nitrate, sodium nitrite, glycine, oxalic acid and EDTA in the photocatalytic degradation of BPB. The maximum percent removal of BPB was observed at pH 6.0 and a low initial concentration of the pollutant highly favours the photocatalytic degradation using thin films. The presence of several interfering ions suppressed the photocatalytic activity of thin films to some extent. The time dependence photocatalytic degradation of BPB was demonstrated with the pseudo-first-order rate kinetics. Study was further extended with total organic carbon measurement using the TOC (Total Organic Carbon) analysis. This demonstrated an apparent mineralization of BPB from aqueous solutions.

scholarly journals Fabrication of Transparent Mg(OH)2 Thin Films by Drop-Dry Deposition

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 724
Author(s):  
Tong Li ◽  
Masaya Ichimura
Keyword(s):  
Thin Films ◽  
Aqueous Solution ◽  
Optical Properties ◽  
Surface Morphology ◽  
Magnesium Hydroxide ◽  
Dry Deposition ◽  
Visible Range ◽  
Substrate Heating ◽  
Water Effects ◽  
Deposition Conditions

Magnesium hydroxide (Mg(OH)2) thin films were deposited by the drop-dry deposition (DDD) method using an aqueous solution containing Mg(NO3)2 and NaOH. DDD was performed by dropping the solution on a substrate, heating-drying, and rinsing in water. Effects of different deposition conditions on the surface morphology and optical properties of Mg(OH)2 thin films were researched. Films with a thickness of 1−2 μm were successfully deposited, and the Raman peaks of Mg(OH)2 were observed for them. Their transmittance in the visible range was 95% or more, and the bandgap was about 5.8 eV. It was found that the thin films have resistivity of the order of 105 Ωcm. Thus, the transparent and semiconducting Mg(OH)2 thin films were successfully prepared by DDD.

A facile room temperature chemical transformation approach for binder-free thin film formation of Ag2Te and lithiation/delithiation chemistry of the film

2016 ◽  
Vol 45 (43) ◽  
pp. 17312-17318 ◽  
Author(s):  
Eun-Kyung Kim ◽  
Dasom Park ◽  
Nabeen K. Shrestha ◽  
Jinho Chang ◽  
Cheol-Woo Yi ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Aqueous Solution ◽  
Ion Exchange ◽  
Chemical Transformation ◽  
Room Temperature ◽  
Film Formation ◽  
Synthetic Method ◽  
Binder Free ◽  
Thin Film Formation

An aqueous solution based synthetic method for binder-free Ag2Te thin films using ion exchange induced chemical transformation of Ag/AgxO thin films.

scholarly journals SrBi2Nb2O9 Thin films deposited by dip coating using aqueous solution

1999 ◽  
Vol 19 (6-7) ◽  
pp. 1409-1412 ◽  
Author(s):  
S.M Zanetti ◽  
E.R Leite ◽  
E Longo ◽  
J.A Varela
Keyword(s):  
Thin Films ◽  
Aqueous Solution ◽  
Dip Coating

Aqueous Solution-Gel Preparation and Dielectric Properties of Ba(Mg1/3 Nb2/3 )O3 Thin Films with Long-Range Order

2014 ◽  
Vol 98 (3) ◽  
pp. 873-878 ◽  
Author(s):  
Liping Wen ◽  
Lin Hu ◽  
Jie Shen ◽  
Yanyuan Qi ◽  
Jing Zhou ◽  
...  
Keyword(s):  
Thin Films ◽  
Aqueous Solution ◽  
Dielectric Properties ◽  
Long Range ◽  
Range Order ◽  
Long Range Order ◽  
Gel Preparation
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