Grafting of organosilane derived from 3-glycidoxypropyltrimethoxysilane and thiourea onto magnesium phyllosilicate by sol–gel process and investigation of metal adsorption properties

Dey, R. K.; Oliveira, Andrea Sales de; Patnaik, Tanushree; Singh, Varun Kumar; Tiwary, Dhanesh; Airoldi, Cláudio

doi:10.1016/j.jssc.2009.05.011

Cited by 28 publications

(17 citation statements)

References 39 publications

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“…In addition, the wide spectrum from 680 to 420 cm −1 is the variation of bonding Ti-O-Ti. Compare to the infrared spectroscopy of ORT, the infrared spectroscopy showed that matched samples GRT showing that silane grafting reaction with OH groups on the surface of TiO 2 particles was successful [22]. The above results demonstrated that the reaction of hydrolysis and condensation has occurred and formed on the surface layer of silicon GRT.…”

Section: Investigation Of Surface Modification Of Ort and Grtmentioning

confidence: 76%

Using Rutile TiO₂Nanoparticles Reinforcing High Density Polyethylene Resin

Tuan

Jeong

Yoon

et al. 2014

International Journal of Polymer Science

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The TiO2nanoparticles were used as a reinforcement to prepare nanocomposites with high density polyethylene (HDPE) by melt blending process. The original TiO2(ORT) was modified by 3-glycidoxypropyltrimethoxysilane (GPMS) to improve the dispersion into HDPE matrix. The FT-IR spectroscopy and FESEM micrographs of modified TiO2(GRT) demonstrated that GPMS successfully grafted with TiO2nanoparticles. The tensile test of HDPE/ORT and HDPE/GRT nanocomposites with various contents of dispersive particles indicated that the tensile strength and Young’s modulus of HDPE/GRT nanocomposites are superior to the values of original HDPE and HDPE/ORT nanocomposites. At 1 wt.% of GRT, the mechanical properties of nanocomposites were optimal. In DSC and TGA analyses, with the presence of GRT in the nanocomposites, the thermal stability significantly increased in comparison with pure HDPE and HDPE/ORT nanocomposites. The better dispersion of GRT in polymer matrix as shown in FESEM images demonstrated the higher mechanical properties of HDPE/GRT nanocomposites to HDPE/ORT nanocomposites.

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Section: Investigation Of Surface Modification Of Ort and Grtmentioning

confidence: 76%

Using Rutile TiO₂Nanoparticles Reinforcing High Density Polyethylene Resin

Tuan

Jeong

Yoon

et al. 2014

International Journal of Polymer Science

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“…for barium adsorption by organic chains. Dey et al . managed to synthesize an organotalc with a silylating agent (GTPS‐TU) containing both nitrogen and sulfur as metal coordination sites and explored the metal‐sorption affinity (Cr, Mn, Zn, etc.…”

Section: Talc‐like Structuresmentioning

confidence: 99%

“…[153] Organotalcs with mercapto-groups have been demonstratedt ob eh ighly efficient agents for heavy-cation removal. [178] An organotalc containing nickel ions located in the octahedral sheet was developed by Melo et al [157] for barium adsorption by organic chains.D ey et al [179] managed to synthesize an organotalc with as ilylating agent (GTPS-TU)c ontaining both nitrogen and sulfur as metal coordination sites and explored the metal-sorption affinity (Cr,M n, Zn, etc. ).…”

Section: Pollutant Trappingmentioning

confidence: 99%

Synthetic Talc and Talc‐Like Structures: Preparation, Features and Applications

Claverie

Dumas

Carême

et al. 2017

Chemistry A European J

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This contribution gives a comprehensive review about the progress in preparation methods, properties and applications of the different synthetic talc types: i) crystalline nanotalc synthesized by hydrothermal treatment; ii) amorphous and/or short-range order nanotalc obtained by precipitation, and iii) organic-inorganic hybrid talc-like structures obtained through a sol-gel process or a chemical grafting. Several advantages of nanotalc such as high chemical purity, high surface area, tunable submicronic size, high thermal stability, and hydrophilic character (leading to be the first fluid mineral) are emphasized. Synthetic nanotalc applications are also considered including its use as nanofiller in composite materials, as absorbers of organic compounds, as anticorrosion coatings and as agents for cosmetic applications. Regarding their high industrial application potential, intensive research has been carried out to better understand their behavior and develop processes to produce them. To facilitate further research and development, scientific and technical challenges are discussed in this Review article.

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“…The authors emphasized the formation of more organized compounds with copper and underlined that all other reactions are entropically favored. In the same way, other studies about the sol-gel synthesis of phyllosilicates with organic moieties containing nitrogen linked to the pending organic chains highlight their ability to remove nickel, copper or zinc from aqueous solutions [56,57].…”

Section: Use Of Lamellar Materials For the Purification Of Aqueousmentioning

confidence: 88%

“…A talc-like hybrid synthesized with a new silicon source derived from 3-glycidoxypropyltrimethoxysilane and thiourea (Figure 5d) was proposed by Dey et al (2009) [57]. This hybrid presents a high lamellar distance (~18.8 Å) due to the existence of organic chains.…”

Section: Use Of Lamellar Materials For the Purification Of Aqueousmentioning

confidence: 96%

Inorganic and Hybrid (Organic–Inorganic) Lamellar Materials for Heavy Metals and Radionuclides Capture in Energy Wastes Management—A Review

et al. 2019

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The energy industry (nuclear, battery, mining industries, etc.) produces a large quantity of hazardous effluents that may contain radionuclides (137Cs and 90Sr in particular) and heavy metals. One of the hardest tasks of environmental safety and sustainable development is the purification of wastewater holding these pollutants. Adsorption is one of the most powerful methods for extracting toxic compounds from wastewater. This study reviews the usefulness of clay minerals as adsorbent for removing these hazardous elements to clean up energy production processes. Phyllosilicates are able to extract several heavy metals from effluent, as widely examined. A particular focus is given to synthetic phyllosilicates and their abilities to entrap heavy metals with a special attention paid to those synthesized by sol-gel route. Indeed, this method is attractive since it allows the development of organic–inorganic hybrids from organosilanes presenting various functions (amino, thiol, etc.) that can interact with pollutants. Regarding these pollutants, a part of this review focuses on the interaction of lamellar materials (natural and synthetic phyllosilicates as well as layered double hydroxide) with heavy metals and another part deals with the adsorption of specific radionuclides, cesium and strontium.

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Grafting of organosilane derived from 3-glycidoxypropyltrimethoxysilane and thiourea onto magnesium phyllosilicate by sol–gel process and investigation of metal adsorption properties

Cited by 28 publications

References 39 publications

Using Rutile TiO₂Nanoparticles Reinforcing High Density Polyethylene Resin

Using Rutile TiO₂Nanoparticles Reinforcing High Density Polyethylene Resin

Synthetic Talc and Talc‐Like Structures: Preparation, Features and Applications

Inorganic and Hybrid (Organic–Inorganic) Lamellar Materials for Heavy Metals and Radionuclides Capture in Energy Wastes Management—A Review

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Grafting of organosilane derived from 3-glycidoxypropyltrimethoxysilane and thiourea onto magnesium phyllosilicate by sol–gel process and investigation of metal adsorption properties

Cited by 28 publications

References 39 publications

Using Rutile TiO2Nanoparticles Reinforcing High Density Polyethylene Resin

Using Rutile TiO2Nanoparticles Reinforcing High Density Polyethylene Resin

Synthetic Talc and Talc‐Like Structures: Preparation, Features and Applications

Inorganic and Hybrid (Organic–Inorganic) Lamellar Materials for Heavy Metals and Radionuclides Capture in Energy Wastes Management—A Review

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Product

Resources

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Using Rutile TiO₂Nanoparticles Reinforcing High Density Polyethylene Resin

Using Rutile TiO₂Nanoparticles Reinforcing High Density Polyethylene Resin