Anatase nanocrystal­dispersed thin films via sol–gel process with hot water treatment: effects of poly(ethylene glycol) addition on photocatalytic activities of the films

2001 ◽  
Vol 11 (8) ◽  
pp. 2045-2048 ◽  
Author(s):  
Yoshinori Kotani ◽  
Tatsuo Matoda ◽  
Atsunori Matsuda ◽  
Toshihiro Kogure ◽  
Masahiro Tatsumisago ◽  
...  
Keyword(s):  
Thin Films ◽  
Water Treatment ◽  
Ethylene Glycol ◽  
Sol Gel ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Poly Ethylene Glycol ◽  
Sol Gel Process ◽  
Photocatalytic Activities ◽  
Poly Ethylene

Anti-reflective properties of nano-structured alumina thin films on poly(methyl methacrylate) substrates by the sol–gel process with hot water treatment

2008 ◽  
Vol 516 (14) ◽  
pp. 4526-4529 ◽  
Author(s):  
Kiyoharu Tadanaga ◽  
Naoko Yamaguchi ◽  
Yusuke Uraoka ◽  
Atsunori Matsuda ◽  
Tsutomu Minami ◽  
...  
Keyword(s):  
Thin Films ◽  
Water Treatment ◽  
Methyl Methacrylate ◽  
Sol Gel ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Poly Methyl Methacrylate ◽  
Sol Gel Process

Effects of Addition of Poly(ethylene glycol) on the Formation of Anatase Nanocrystals in SiO2−TiO2Gel Films with Hot Water Treatment

2001 ◽  
Vol 13 (6) ◽  
pp. 2144-2149 ◽  
Author(s):  
Yoshinori Kotani ◽  
Atsunori Matsuda ◽  
Toshihiro Kogure ◽  
Masahiro Tatsumisago ◽  
Tsutomu Minami
Keyword(s):  
Water Treatment ◽  
Ethylene Glycol ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Preparation of Co–Al and Ni–Al layered double hydroxide thin films by a sol–gel process with hot water treatment

2012 ◽  
Vol 62 (1) ◽  
pp. 111-116 ◽  
Author(s):  
Kiyoharu Tadanaga ◽  
Akira Miyata ◽  
Daisuke Ando ◽  
Naoko Yamaguchi ◽  
Masahiro Tatsumisago
Keyword(s):  
Thin Films ◽  
Water Treatment ◽  
Layered Double Hydroxide ◽  
Sol Gel ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Sol Gel Process ◽  
Double Hydroxide

Anti-Reflective Coatings of Flowerlike Alumina on Various Glass Substrates by the Sol?Gel Process with the Hot Water Treatment

2005 ◽  
Vol 33 (1) ◽  
pp. 117-120 ◽  
Author(s):  
N. Yamaguchi ◽  
K. Tadanaga ◽  
A. Matsuda ◽  
T. Minami ◽  
M. Tatsumisago
Keyword(s):  
Water Treatment ◽  
Sol Gel ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Glass Substrates ◽  
Sol Gel Process ◽  
Reflective Coatings

Lowering of Preparation Temperatures of Anatase Nanocrystals-Dispersed Coatings via Sol-Gel Process with Hot Water Treatment

2005 ◽  
Vol 88 (6) ◽  
pp. 1421-1426 ◽  
Author(s):  
Atsunori Matsuda ◽  
Tatsuo Matoda ◽  
Kiyoharu Tadanaga ◽  
Tsutomu Minami ◽  
Masahiro Tatsumisago ◽  
...  
Keyword(s):  
Water Treatment ◽  
Sol Gel ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Sol Gel Process

Effects of poly(ethylene glycol) additive molecular weight on the microstructure and properties of sol-gel-derived lead zirconate titanate thin films

2003 ◽  
Vol 18 (3) ◽  
pp. 737-741 ◽  
Author(s):  
Shuhui Yu ◽  
Kui Yao ◽  
Santiranjan Shannigrahi ◽  
Francis Tay Eng Hock
Keyword(s):  
Thin Films ◽  
Molecular Weight ◽  
Ethylene Glycol ◽  
Lead Zirconate Titanate ◽  
Sol Gel ◽  
Lead Zirconate ◽  
Poly Ethylene Glycol ◽  
Molecular Weights ◽  
Zirconate Titanate ◽  
Poly Ethylene

Poly(ethylene glycol) (PEG) additives with different molecular weights were used to modify sol-gel precursor solutions for preparing lead zirconate titanate (PZT) thin films. The morphology, crystalline structure, and mechanical and electrical properties of the films were characterized. The relationship between the characteristics of the films and the molecular weight of PEG was investigated. It was observed that the PEG eliminated cracking of the films during multiple pyrolysis treatments. However, with the increase of the PEG molecular weight, the films became less dense, which led to decreased Young's modulus and dielectric constant and increased coercive field. Our experiments showed that films prepared from sols modified by PEG with a molecular weight of 200 exhibited a dense morphology and excellent mechanical and electric properties without cracking.

Studies on Effect of Zinc Oxide (ZnO) Nanostructures Morphology by Modification of Sol-Gel Solution

2015 ◽  
Vol 1125 ◽  
pp. 106-110 ◽  
Author(s):  
Ili Liyana Khairunnisa Kamardin ◽  
Ainun Rahmahwati Ainuddin
Keyword(s):  
Thin Films ◽  
Zinc Oxide ◽  
Water Treatment ◽  
Biomedical Application ◽  
Sol Gel ◽  
Zno Nanorods ◽  
Hot Water ◽  
Zno Thin Films ◽  
Hot Water Treatment ◽  
Zno Nanostructures

Zinc Oxide (ZnO) known as wide band gap semiconductor with large excitation energy 60 meV, noncentral symmetry, piezoelectric and biocompatible for biomedical application are the unique characteristic that attract many researcher’s attention on ZnO nanostructure synthesis and physical properties. ZnO thin films were deposited on Si Glass substrate by a sol-gel process. The starting solution were prepare by dissolved zinc acetate dehydrate (ZnAc) and diethanolamine (DEA) in water (H2O) and 2-propanol (2-PrOH). 0 to 60 drops of NaOH were dropped into 100 ml sol-gel solution to study effect of sol-gel modification. ZnO thin films were obtained after preheating the spin coated thin films at 100 °C for 10 minutes after each coating. The coated substrates were undergone for Hot Water Treatment (HWT) process at 90 °C for 6 hours to grow ZnO nanostructures. The effects of sol-gel modification by drop of NaOH into the solution were studied. ZnO nanorods and nanoflakes were obtained after hot water treated at 90 °C for 6 hours with different amount of NaOH dropped directly in the sol-gel solution. On the basis of the changes in morphology and microstructure induced by hot water treatment, it is concluded that the amount of NaOH dropped into sol-gel effected morphology of ZnO growth.

Growth of Nanostructured ZnO Nanosheet on ITO/PET Substrate Prepared via Sol Gel Spin Coating and Hot Water Treatment

2016 ◽  
Vol 840 ◽  
pp. 252-256 ◽  
Author(s):  
Ili Liyana Khairunnisa Kamardin ◽  
Muhammad Ngah ◽  
Ahmad Fadzly Ahmad Fuad ◽  
Muhammad Haizat Harun ◽  
Ainun Rahmahwati Ainuddin
Keyword(s):  
Thin Films ◽  
Water Treatment ◽  
Spin Coating ◽  
Sol Gel ◽  
Hot Water ◽  
Zno Thin Films ◽  
Hot Water Treatment ◽  
Research Attention ◽  
Environment Condition ◽  
Pet Substrate

Zinc Oxide (ZnO) is well known for its wide band gap semiconductor with large excitation energy that serves various application. These unique characteristics had gained much research attention on ZnO nanostructure synthesis and physical properties. In this study, ZnO thin films were deposited on ITO/PET substrate by a spin coating sol-gel process. The starting solution were prepare by dissolved zinc acetate dehydrate (ZnAc) and diethanolamine (DEA) in water (H2O) and 2-propanol (2-PrOH). Acid Citric (C6H8O7) from 0.2 to 1.0 M were dropped into 100 ml sol-gel solution to study effect of sol-gel environment condition. ZnO thin films were obtained after pre-heating the spin coated thin films at 100 °C for 5 minutes after each coating. The coated substrates were undergone for Hot Water Treatment (HWT) process at 90 °C for 6 hours to grow ZnO nanostructures. The effects of sol-gel environment condition by drop different concentrations of C6H8O7 into the solution were studied. Nanoflakes ZnO were obtained after hot water and hydrothermal treated at 90 °C for 6 hours with 0.2 till 1.0 concentration of C6H8O7 dropped directly in the sol-gel solution. On the basis of the changes in morphology and microstructure induced by hot water treatment, it is concluded that the nanosheets were highly transparent with the visible range (350 – 800 nm) with 70%-90% of Transmittance spectra. Growth of ZnO nanosheet influenced by increment of C6H8O7 mol concentration also with value of roughness RMS.

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