Preparation and electrorheological properties of triethanolamine-modified TiO2

Cao, Jie; Shen, Meikun; Zhou, Leyuan

doi:10.1016/j.jssc.2006.01.078

Cited by 51 publications

(16 citation statements)

References 15 publications

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“…This point is further discussed below in the section of Lewis basicity test. The band at around 1195 cm -1 is attributed to C-C skeletal vibration, while the weak shoulder at 1070 cm -1 belongs to C-OH stretching mode of TEA molecule (Gu and Wu 2007;Cao et al 2006). The appearance of two bands at 1195 and 1070 cm -1 suggests that the CuS surface has been truly modified by TEA with the additional advantage of having extra polar groups, such as -OH, coming from triethanolamine (Gu and Wu 2007).…”

Section: Ft-ir Study and Lewis Basicity Test To Detect Hydroxyl Ions mentioning

confidence: 99%

Synthesis of CuS nanoparticles by a wet chemical route and their photocatalytic activity

et al. 2015

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CuS nanoparticles (NPs) of few nanometers in size were prepared by a wet chemical method. The structural, compositional, and optical properties of the NPs were characterized by X-ray diffraction (XRD), scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, micro Raman and Fourier transform infrared spectroscopy, N 2 adsorption-desorption isotherms, and UV-Vis diffuse reflectance spectroscopy. The XRD pattern proved the presence of hexagonal phase of CuS particles which was further supported by Raman spectrum. The estimated band gap energy of 2.05 eV for the slightly sulfur-rich CuS NPs is relatively larger than that of bulk CuS (1.85 eV), indicating the small size effect. As-prepared NPs showed excellent photocatalytic activity for the degradation of methylene blue (MB) under visible light. The surface-bound OH -ions at the CuS nanostructures help adsorb MB molecules facilitating their degradation process under visible light illumination. The studies presented in this paper suggest that the synthesized CuS NPs are promising, efficient, stable, and visible-light-sensitive photocatalyst for the remediation of wastewater polluted by chemically stable azo dyes such as MB.

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Section: Ft-ir Study and Lewis Basicity Test To Detect Hydroxyl Ions mentioning

confidence: 99%

Synthesis of CuS nanoparticles by a wet chemical route and their photocatalytic activity

et al. 2015

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“…164 Later, polar molecule-modification of SiO 2 and TiO 2 nanoparticles was applied to enhance the ER performance of these particles. In addition to the first applied polar molecule, urea, [165][166][167][168] other polar molecules, such as triethanolamine 169,170 and acetamide, 171 were attempted as modification agents to inorganic particles. On the other hand, only the in situ added polar molecules could generate a GER effect rather than post modification of the synthesized inorganic particles.…”

Section: Giant Er Materialsmentioning

confidence: 99%

Electrorheological fluids: smart soft matter and characteristics

2012

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An electrorheological fluid, a special type of suspension with controllable fluidity by an electric field, generally contains semiconducting or polarizable materials as electro-responsive parts. These materials align in the direction of the applied electric field to generate a solid-like phase in the suspension. These electro-responsive smart materials, including dielectric inorganics, semiconducting polymers and their hybrids, and polymer/inorganic composites, are reviewed in terms of their mechanism, rheological analysis and dielectric characteristics.

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“…(b)] the C–N stretching from the tertiary amine was detected at a frequency around 1150 cm −1 . This band exists as a shoulder on the bands characteristic for the stretching of C–OH, detected at approximately 1050 cm −1 . The identification of the tertiary amine group and the alcohol stretch clearly show that the sol–gel precipitates were modified with TEA.…”

Section: Resultsmentioning

confidence: 98%

The Assembly of TiO₂ Nanoparticles into Micrometer‐Sized Structures, Photocatalytically Active Under UV and Vis Light

2015

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Micrometer‐sized structures consisting of TiO2 nanoparticles were prepared using the sol–gel technique in combination with the structure‐directing agent triethanolamine (TEA). The interaction of the TEA with the hydrolyzed sol–gel products led to the formation of TEA titanate complexes, which then enabled the assembly of sol–gel‐precipitated nanosized powders. A subsequent thermal treatment of these powders resulted in the formation of micrometer‐sized structures consisting of TiO2 anatase and rutile nanoparticles. To characterize the prepared powders, FTIR spectroscopy, XRD analysis, the Brunauer‐Emmett‐Teller method (sBET), UV–Vis spectrometry and electron microscopy (FE‐SEM, and TEM) were employed. The photocatalytic degradation of the azo dye known as methylene blue was monitored under UV and Vis irradiation and showed that the micrometer‐sized structures consisting of TiO2 nanoparticles exhibited a similar photocatalytic activity to submicrometer‐sized structures consisting of TiO2 nanoparticles prepared without TEA.

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Preparation and electrorheological properties of triethanolamine-modified TiO2

Cited by 51 publications

References 15 publications

Synthesis of CuS nanoparticles by a wet chemical route and their photocatalytic activity

Synthesis of CuS nanoparticles by a wet chemical route and their photocatalytic activity

Electrorheological fluids: smart soft matter and characteristics

The Assembly of TiO₂ Nanoparticles into Micrometer‐Sized Structures, Photocatalytically Active Under UV and Vis Light

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Preparation and electrorheological properties of triethanolamine-modified TiO2

Cited by 51 publications

References 15 publications

Synthesis of CuS nanoparticles by a wet chemical route and their photocatalytic activity

Synthesis of CuS nanoparticles by a wet chemical route and their photocatalytic activity

Electrorheological fluids: smart soft matter and characteristics

The Assembly of TiO2 Nanoparticles into Micrometer‐Sized Structures, Photocatalytically Active Under UV and Vis Light

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Product

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The Assembly of TiO₂ Nanoparticles into Micrometer‐Sized Structures, Photocatalytically Active Under UV and Vis Light