Estimation of the surface interaction mechanism of ZnO nanoparticles modified with organosilane groups by Raman Spectroscopy

Jaramillo, Alberto; Báez-Cruz, Ricardo; Montoya, Luis Felipe; Medina, Carlos; Pérez‐Tijerina, E.; Salazar, F.; Rojas, D.; Meléndrez, Manuel

doi:10.1016/j.ceramint.2017.06.027

Cited by 92 publications

(41 citation statements)

References 46 publications

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“…The eigenmode of E 2 (low), E 2 (high) and A 1 (LO) of unirradiated ZnO samples were located at 101 cm −1 , 437 cm −1 and 576 cm −1 , respectively. The 2E 2 (low) and E 2 (high)-E 2 (low) modes emerged at 202 cm −1 and 333 cm −1 , respectively [13]. After irradiated by 56 Fe 21+ ions, wide absorption bands of 80 cm −1 245 cm −1 and 520 cm −1~6 00 cm −1 emerged.…”

Section: Raman Spectra Of 56 Fe 21+ Ion-irradiated Znomentioning

confidence: 93%

“…The experimental samples for the commercial "O" surface polishing comprised zinc oxide single crystals with a surface normal direction of [0001] and an edge orientation of [11][12][13][14][15][16][17][18][19][20] (10 × 10 × 0.5 mm). The 350 MeV 56 Fe 21+ ion irradiation test was carried out at the Heavy Ions Research Facility in Lanzhou (HIRFL) at room temperature.…”

Section: Methodsmentioning

confidence: 99%

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Raman Spectra and Microstructure of Zinc Oxide irradiated with Swift Heavy Ion

Yin

Zhang

et al. 2019

Crystals

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Zinc oxide (ZnO) materials irradiated with 350 MeV 56Fe21+ ions were studied by Raman spectroscopy, Photoluminescence spectra (PL) and Transmission electron microscope (TEM). After 56Fe21+ ion irradiation, a strong oxygen vacancy (Vo) related defect absorption peak at 576 cm−1 and an interstitial zinc (Zni) -related defect at 80 cm−1~200 cm−1 formed, and with the increase of dose, the absorption peak was obviously enhanced. Through theoretical calculation, different Raman incident light test methods wereused to determine the oxygen vacancy defect (Vo). There were no significant variation tendencies in the other Raman characteristic lines. Our results demonstrate an energy loss process contributing to the defect structure during irradiation. TEM images showed a lot of fundamental defects. But we see no distinct amorphization in the samples in the electron diffraction images, indicating that the higher energy and irradiation dose hardly affected the structure and performance of zinc oxide.

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Section: Raman Spectra Of 56 Fe 21+ Ion-irradiated Znomentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Raman Spectra and Microstructure of Zinc Oxide irradiated with Swift Heavy Ion

Yin

Zhang

et al. 2019

Crystals

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“…The surface functionalization is another important parameter influencing the toxicity of ZnO nanoparticles. In addition, the correlation between surface functionality and toxicity of ZnO nanoparticles can be an effective way to modify the toxicity of ZnO nanoparticles to have specific cellular interactions with the biological molecules and preserve their functional properties, which will open up several novel applications for this group of nanomaterials [142][143][144][145][146]. In this regard, Ramasamy et al [147] fabricated SiO 2 -coated ZnO nanoparticles in which coated ZnO nanoparticles exhibit less cytotoxicity compared with uncoated ZnO nanoparticles.…”

Section: Metal Nanoparticlesmentioning

confidence: 99%

Polymer Composites Containing Functionalized Nanoparticles and the Environment

Zanjani

Oğuz

Okan

et al. 2019

Polymer Composites With Functionalized Nanoparticles

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In the past decade, there has been a dramatic increase in the production and application of engineered nanomaterials and their polymeric nanocomposites. This steep increase in the quantities of nanomaterials raises the question of whether the unknown risks of engineered nanoparticles outweigh their benefits and what are the potential risks of such materials on our health and the environment. There are several research results available focusing on the nanomaterials' harmful potential such as the toxicological effect on living organs, and other adverse environmental effects. However, no clear guidelines exist to quantify these effects and to prevent unplanned environmental costs. Therefore, it is necessary for research and industrial communities to engage in nanotoxicological research, risk assessment protocol development, and safe handling guidelines preparation to minimize the environmental consequences of nanoparticles. This chapter will focus on the environmental effects of nanomaterials, nanotoxicology, and their novel and innovative environmentally friendly applications.

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“…XPS analysis was conducted to monitor the attachment of APTES layer onto ZnO by reflux and ultrasonication method. In general, the anchoring mechanism of organosilane molecules can be classified into two processes: Condensation and hydrogen bonding [4]. Condensation will result in formation of siloxane bonds that is preferable for APTES functionalization process [6].…”

Section: Xps Analysismentioning

confidence: 99%

“…The rapid formation of covalent bonds between the anchoring group and the substrates make this method preferable compared to other conventional methods [1][2][3]. The stabilization of the monolayer of products is achieved by these covalent bonds allowing ease of additional chemical modification while maintaining the integrity of the newly formed surface film [4]. Moreover, the types, amounts and different conditions of surface grafting largely influences the morphology, mechanical, processability and the barrier properties of the nanocomposite [5].…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Zinc Oxide by 3-aminopropyltiethoxysilane and a Comparative Study of Effect of Corrosion on Carbon Steel With Epoxy Containing Graphene Oxide-Zinc Oxide (GO-ZnO) Hybrids

2018

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The use of coupling agent, 3-aminopropyltiethoxysilane (APTES) in the silanization reaction with metal oxides plays an important role to ensure that additional chemical modification can successfully be achieved. Studies have shown that introducing metal oxides onto graphene oxide sheets can improve the dispersion of sheets in a polymeric matrix, contributing to its excellent anti-corrosion properties. Hence, two methods of APTES attachment has been explored, where the first method utilizes a reflux process to introduce siloxane bonds to the ZnO NP surface; the latter usesuse of ultrasonication to stimulate the functionalization of ZnO NPs. Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS) were employed to characterize the APTES-Functionalized ZnO and the precipitation on the surface of GO sheets. The effect of GO-ZnO produced by the different types of functionalized ZnO on the corrosion protection and barrier performance of epoxy coating was investigated by electrochemical impedence spectroscopy (EIS). The results revealed that the long duration of reaction time provided by the reflux method managed to increase the number of siloxane bonds on the ZnO surface, allowing more amine groups to be attached onto the GO sheets and thus improve the corrosion resistance of epoxy.

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Estimation of the surface interaction mechanism of ZnO nanoparticles modified with organosilane groups by Raman Spectroscopy

Cited by 92 publications

References 46 publications

Raman Spectra and Microstructure of Zinc Oxide irradiated with Swift Heavy Ion

Raman Spectra and Microstructure of Zinc Oxide irradiated with Swift Heavy Ion

Polymer Composites Containing Functionalized Nanoparticles and the Environment

Surface Modification of Zinc Oxide by 3-aminopropyltiethoxysilane and a Comparative Study of Effect of Corrosion on Carbon Steel With Epoxy Containing Graphene Oxide-Zinc Oxide (GO-ZnO) Hybrids

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