Fabrication of SiO2 nanoparticle–polyelectrolyte nanocontainers with preloaded benzotriazole inhibitors and their self-releasing mechanism and kinetics

Feng, Yuanchao; Chen, Shougang; Cheng, Y. Frank

doi:10.1007/s10853-017-1074-x

Cited by 21 publications

(13 citation statements)

References 42 publications

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“…The peaks at 791 cm −1 and 990 cm −1 are owing to C−H in the plane and out of the benzene ring of benzotriazole and the presence of benzotriazole with rGO, respectively [47–50] . Moreover, bands between 3600 and 3300 cm −1 are associated with O−H stretching [45] . The FTIR findings demonstrate that the heterocyclic benzotriazole was functionalized on the rGO surface successfully.…”

Section: Resultsmentioning

confidence: 82%

“…The BTA‐rGO spectrum clearly shows the functionalization of BTA on the rGO surface. The structure of benzene rings in BTA has a peak at 1613 cm −1 and the peak stretching vibration causes the concedable intensity peak at 1113 and 1348 cm −1 owing to the C−N [45] . The new broad peaks obtained at 1580 and 1188 cm −1 are assigned to N=N and N−N vibrations on the surfaces of BTA‐rGO, respectively [46] .…”

Section: Resultsmentioning

confidence: 99%

“…The BTA-rGO spec-trum clearly shows the functionalization of BTA on the rGO surface. The structure of benzene rings in BTA has a peak at 1613 cm À 1 and the peak stretching vibration causes the concedable intensity peak at 1113 and 1348 cm À 1 owing to the CÀ N. [45] The new broad peaks obtained at 1580 and 1188 cm À 1 are assigned to N=N and NÀ N vibrations on the surfaces of BTA-rGO, respectively. [46] The peaks at 791 cm À 1 and 990 cm À 1 are owing to CÀ H in the plane and out of the benzene ring of benzotriazole and the presence of benzotriazole with rGO, respectively.…”

Section: Ftir Spectroscopy Analysismentioning

confidence: 98%

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Electrochemical Sensing of Arsenic Ions Using a Covalently Functionalized Benzotriazole‐Reduced Graphene Oxide‐Modified Screen‐Printed Carbon Electrode

Gunasekaran

Rayappan

Rajendran³

et al. 2022

ChemistrySelect

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Herein, Tecoma stans (TS) flower extract was used as an efficient green reducing agent for graphene oxide (GO) to produce reduced graphene oxide (rGO) for the first time. The organic heterocyclic benzotriazole (BTA) was incorporated onto the rGO surface through a nucleophilic substitution reaction to produce covalently bonded BTA-rGO. The prepared materials were analyzed by UV-visible spectroscopy, powder Xray diffraction measurements (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and Scanning Electron Microscopy (SEM). A screen-printed carbon electrode (SPCE) was modified with BTA-rGO. The fabricated electrode was electrochemically analyzed by using K 3 [Fe (CN) 6 ] as a redox probe. To evaluate the sensing ability of BTA-rGO/SPCE electrode towards arsenic ions using differential pulse voltammetry (DPV) and amperometry techniques. The BTA functional was play the major role in significant improving the conductivity and sensitivity of the designed electrode. The BTA-rGO/SPCE modified electrode demonstrates voltammetric determination of As 3 + ions with a limit of detection, high sensitivity, and linear range values of 2.89 nM, 1.8 μA nM À 1 , and 2-40 nM, respectively. Furthermore, all of these impressive results indicate that BTA-rGO can be used as an electrodematerial with capability for electrochemical arsenic sensors. The fabricated sensors showed repeatability and reproducibility in this study.

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Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Section: Ftir Spectroscopy Analysismentioning

confidence: 98%

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Electrochemical Sensing of Arsenic Ions Using a Covalently Functionalized Benzotriazole‐Reduced Graphene Oxide‐Modified Screen‐Printed Carbon Electrode

Gunasekaran

Rayappan

Rajendran³

et al. 2022

ChemistrySelect

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“…Therefore, if the local pH decreases due to the corrosion process, the BTA inhibitor is expected to be released at a higher rate, and the corrosion resistance will increase. There are reports in the literature on the use of various materials such as SiO 2 , nanoporous chitosan hybrid particles, lignin microspheres, and zeolitic imidazole framework as BTA carriers. The SiO 2 /BTA system with the loading efficiency of 2.5 wt % can release BTA in a different range of pH values from 3.0 to 9.0 .…”

Section: Resultsmentioning

confidence: 99%

Fabrication of a pH-Sensitive Epoxy Nanocomposite Coating Based on a Zn-BTC Metal–Organic Framework Containing Benzotriazole as a Smart Corrosion Inhibitor

Mohammadpour

Zare

2021

Crystal Growth & Design

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In this study, a pH-sensitive Epoxy/BTA@Zn-BTC smart anticorrosion nanocomposite coating was fabricated by the encapsulation of a benzotriazole (BTA) corrosion inhibitor in a Zn-BTC metal−organic framework (MOF). The corrosion process of the coating was investigated for different durations of storing the coating in a corrosive solution of 3.5 wt % NaCl using potentiodynamic polarization (Tafel) plots and electrochemical impedance spectroscopy. The synthesized BTA@Zn-BTC nanocapsules have a loading capacity of 16.5% for BTA. The BTA encapsulated in Zn-BTC MOF is released as the corrosion zone becomes acidic, and it serves as a corrosion inhibitor. The released BTA inhibitor proved to have an inhibition efficiency of 98.8% to protect aluminum against corrosion in the corrosive solution after 3 days. A possible mechanism has been presented for the formation of a protective film in this process. It is argued that in the active areas of corrosion on the metal surface the local pH decreases and the H + ions produced in the corrosion reaction rapidly penetrate into the BTA@Zn-BTC nanocapsules, releasing the BTA inhibitor. Then, the released inhibitor forms a dense barrier in the corrosion area to decrease the corrosion rate. As found in this study, the durability of this smart coating is significantly prolonged in a 3.5 wt % NaCl solution.

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“…The layer-by-layer (LBL) method was used to increase the density of the solution and decrease shrinkage (Feng and Cheng, 2016). The deposition of polyelectrolytes was used for the storage of a heterocyclic compound with three nitrogen atoms (Feng et al , 2017), called benzotriazole (BTA) (Khiati et al , 2011), to act as a corrosion inhibitor. These nanocontainers encapsulated the inhibitor within the HNT to protect the copper metal surface from being corroded (Abdullayev et al , 2013).…”

Section: Introductionmentioning

confidence: 99%

Modification and corrosion resistance of halloysite carrier with metal nanoinhibitor in marine corrosion environment

Wang¹,

Lv²,

Liu³

et al. 2022

ACMM

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Purpose The purpose of this paper is to provide theoretical guidance and an experimental basis for a smart anti-corrosion coating of halloysite nanocontainers loaded with benzotriazole (BTA) inhibitors on copper in a marine corrosion environment. Design/methodology/approach In the present study, the smart anti-corrosion coatings of halloysite nanocontainers loaded inhibitors on copper were synthesized by adding BTA inside the halloysite nanocontainers. Then, the halloysite carrier’s surface topography and composition in the halloysite were observed using scanning electron microscopy. After the successful synthesis of the coating, the inhibitor’s physical and chemical properties, as well as the mass change in halloysite, were evaluated in terms of temperature fluctuation and time using thermal gravity analysis (TGA). Finally, electrochemical impedance spectroscopy was used to check the pH selectivity for the self-releasing of BTA out of the nanocontainers. Findings The results indicate that the efficiency of the nanotubes was enhanced by calcination at high temperatures. The thermal gravity analysis by TGA shows that halloysite nanoparticles store inhibitors BTA and there are approximately 37.39 Wt.% BTA loaded in each nanocontainer. The release of the preloaded BTA from the halloysite nanocontainers is pH 7 in a 3.5% NaCl solution. Originality/value The development of a new environmentally safe coating for corrosion protection of metallic surfaces has attracted great interest in material science over the past few years. At present, halloysite nanotubes (HNTs) have become a research hotspot internationally and are widely used in nanocomposites, catalysis, nanofiltration, drug sustained-release and other fields. However, the application of HNT is limited by its modification methods. As the carrier of metal nanocorrosion inhibitor in the Marine corrosive environment, the modification research of HNT still needs to be further studied and improved so as to expand the practical application of HNT in the Marine corrosive environment. In this paper, the modification of HNTs was investigated and observed. Four different modification schemes were used to observe and compare the structural properties of the nanotubes under different conditions so as to provide a theoretical basis for the further loading of HNTs as corrosion inhibitors.

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Fabrication of SiO2 nanoparticle–polyelectrolyte nanocontainers with preloaded benzotriazole inhibitors and their self-releasing mechanism and kinetics

Cited by 21 publications

References 42 publications

Electrochemical Sensing of Arsenic Ions Using a Covalently Functionalized Benzotriazole‐Reduced Graphene Oxide‐Modified Screen‐Printed Carbon Electrode

Electrochemical Sensing of Arsenic Ions Using a Covalently Functionalized Benzotriazole‐Reduced Graphene Oxide‐Modified Screen‐Printed Carbon Electrode

Fabrication of a pH-Sensitive Epoxy Nanocomposite Coating Based on a Zn-BTC Metal–Organic Framework Containing Benzotriazole as a Smart Corrosion Inhibitor

Modification and corrosion resistance of halloysite carrier with metal nanoinhibitor in marine corrosion environment

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