Methanol-dispersed of ternary Fe3O4@γ-APS/graphene oxide-based nanohybrid for novel removal of benzotriazole from aqueous solution

Minh, Tran Dinh; Lee, Byeong–Kyu; Nguyen-Le, Minh-Tri

doi:10.1016/j.jenvman.2017.12.085

Cited by 25 publications

(11 citation statements)

References 46 publications

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“…Typical signals for Chlorfenapyr at 1660 cm −1 and 2234 cm −1 were distinctively identified at the 10 ppm of AgNPs. The optimal amplification was observed at the 50 ppm of AgNPs, where signals indicating the stretching of C-O-C, C-F and aromatic nitrile were also observed [19][20][21]. The intensity of these enhanced signals was remarkable strengthened compared to the lower concentration of AgNPs, owing to the availability of substrate surface plasmons excitation.…”

Section: Synthesis Of Agnps/pva/cellulosementioning

confidence: 96%

Fabrication process and characterization of AgNPs/PVA/cellulose as a SERS platform for in-situ detection of residual pesticides in fruit

Thi¹,

Nguyen

Vu³

et al. 2020

Mater. Res. Express

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In this work, AgNPs/PVA/Cellulose was used as a substrate material for surface Raman scattering enhancement. Silver nanoparticles (AgNPs) was synthesized by Lee and Meisel's method with the average particles size of 15.4 nm. Then, this silver colloid was made a homogenous coating on polyvinyl alcohol and cellulose film and structural characteristics of this material were determined using Scanning Electron Microscopy (SEM). The findings demonstrated that the Raman shifts of the pesticide will be identified by the SERS method at 1660 cm −1 , 2234 cm −1 (strong intensity), and at 3077 cm −1 , 1033 cm −1 , 1457 cm −1 (medium intensity) when using the excited laser with wavelength of 532 nm. Under excited laser, the limit of chlorfenapyr detection is 1 ppm (mg l −1 ), allowing determination of chlorfenapyr residue in food. Potential applications identified food samples containing chlorfenapyr residue for rapid detection, low cost, non-destructive nature and minimal sample preparation.

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Section: Synthesis Of Agnps/pva/cellulosementioning

confidence: 96%

Fabrication process and characterization of AgNPs/PVA/cellulose as a SERS platform for in-situ detection of residual pesticides in fruit

Thi¹,

Nguyen

Vu³

et al. 2020

Mater. Res. Express

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“…Agricultural Activities. Nanotechnology is one of the most important tools of modern agricultural science, in which nanotechnology in the field of agrifood is predicted to become a driving force in the global economy in the future [3,4,[18][19][20][21][22]. The rapid development of nanotechnology today is an objective process, reflecting the process of continuous improvement scientific and technical customs and changing technological habits.…”

Section: Role Of Nanoparticles In Pesticides and Herbicides Inmentioning

confidence: 99%

“…On January 11 th 2007, Vietnam officially became the WTO member [28]. Follow- [3,29]. In 2008, the Central Party Committee issued Resolution No.…”

Section: Extensive Commercial and Export-oriented Productionmentioning

confidence: 99%

“…Nanomaterials are typically two-or threedimensional materials, of which at least one dimension is nanometers (nm). Thus, nanomaterials can exist in three states: solid, liquid, and gas, in which solid nanomaterials are being studied the most, especially in the field of application in the agricultural system of developing countries such as Vietnam [1][2][3]. The concept of nanotechnology was first introduced in 1959 by the famous physicist Richard Feynman.…”

Section: Introductionmentioning

confidence: 99%

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Agricultural Restructure Policy in Vietnam and Practical Application for Sustainable Development in Agriculture

Ngoc

Hùng

Pham

2021

Journal of Nanomaterials

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The Vietnam’s agricultural sector had to challenge with its course and learned lessons of further development. Novel policy might be adopted to encourage the private investments and sectors in agriculture. Furthermore, an introduction of new models such as climate-smart or green agriculture and application of modern technology increased productivity at the same time and creating jobs for millions of agricultural workers and reversing the massive rural-urban migration flux. Vietnam’s agricultural sector needs to maintain the reform momentum, particularly liberalization policy, and to boost up agricultural potential. Obstacles such as land limitation policy must be removed to enable large-scale production and encourage private investment in the agricultural sector. To avoid being trapped by its own success, Vietnam is now shifting the old development paradigm that focuses too much on the quantity to the quality of the agricultural production. The government makes major efforts to achieve at the same time agricultural growth, better livelihood of the farmer, and the development of the rural areas. However, Vietnam still needs to prepare a “transition strategy” to overcome the impact of the technological progress on the traditional agricultural workers.

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“…They are widely utilized in cooling and hydraulic fluids, metallic anticorrosives, aircraft deicer, anti-icer fluid, and dishwasher detergents [3] . BTA is used as an anticonvulsant, against fungicide, antitumor, antimalarial, and antibacterial activities in the pharmaceutical industry [4,5] . Due to its widespread uses, BTA is known as a potential source of natural environmental pollutions as well as adverse effects of it to humans and plants is recognized [6] .…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Trace Amounts of Benzotriazole in Aqueous Solutions Using Gold Nanoparticles: Artificial Neural Network Modeling

et al. 2020

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In this study, ultraviolet-visible (UV-Vis) spectrophotometry method was applied to determine benzotriazole (BTA) in aqueous solutions based on surface plasmon resonance (SPR) property of gold nanoparticles (AuNPs). The experimental variables such as pH, time, the volume of various buffers, the concentration of different electrolytes, and concentrations of AuNPs were investigated. Under optimum conditions, the proposed method represented a linear range between 10 to 150 μg L À 1 (R 2 = 0.9941) with a detection limit (LOD) of 5 μg L À 1 . This method was successfully used to measure trace amounts of BTA in Ahwaz drinking water and Ramin power plant cooling water samples. The proposed spectrophotometry assay is accurate, low-cost, simple, and does not need any separation steps compared to the other methods. In the next step, an artificial neural network (ANN) using Levenberg-Marquardt (LM) and Resilient Back propagation (RP) algorithms, was used to predict the absorbance of the mentioned factors. For each algorithm, 2 layers and for each layer 2,4,6,8, and 10 neurons were studied. According to mean square error (MSE) and coefficient of determination (R 2 ), the LM algorithm was better than the RP algorithm for the prediction of absorbance.[a] Dr.

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Methanol-dispersed of ternary Fe3O4@γ-APS/graphene oxide-based nanohybrid for novel removal of benzotriazole from aqueous solution

Cited by 25 publications

References 46 publications

Fabrication process and characterization of AgNPs/PVA/cellulose as a SERS platform for in-situ detection of residual pesticides in fruit

Fabrication process and characterization of AgNPs/PVA/cellulose as a SERS platform for in-situ detection of residual pesticides in fruit

Agricultural Restructure Policy in Vietnam and Practical Application for Sustainable Development in Agriculture

Spectrophotometric Determination of Trace Amounts of Benzotriazole in Aqueous Solutions Using Gold Nanoparticles: Artificial Neural Network Modeling

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