Effect of a roughness factor on electrochemical reduction of 4-nitrophenol using porous gold

Kim, Jieun; Han, Soomin; Kim, Younghun

doi:10.1007/s11814-017-0137-7

Cited by 7 publications

(4 citation statements)

References 15 publications

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“…4-Nitrophenol (4-NP) is widely used to produce pesticides, dyes, and rubber. , Owing to its highly stability in the water phase, 4-NP is the most common organic pollutant in industrial wastewaters. The hydrogenized form of 4-NP4-aminophenol (4-AP)is an important intermediate for antipyretic and analgesics drugs (phenacetin and paracetamol) .…”

Section: Introductionmentioning

confidence: 99%

Photothermal-Mediated Catalytic Reduction of 4-Nitrophenol Using Poly(N-isopropylacrylamide-acrylamide) and Hollow Gold Nanoparticles

Moon

Kim

2021

ACS Appl. Polym. Mater.

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Hollow gold nanoparticles (HAuNPs) have received significant attention for photothermal applications owing to their strong absorbance in the near-field region, resulting in high photothermal conversion efficiency. Localized surface plasmon resonance (LSPR)-mediated heating, which is a non-radiative property of AuNPs, has been shown to enhance photothermalmediated catalytic reactions. In addition, the modification of the structure and interparticle distance of plasmonic NPs induce the surface plasmon resonance-coupling effect. In this study, we prepared the core-satellite structure used in the photothermalmediated catalytic reduction of 4-nitrophenol with poly(Nisopropylacrylamide-acrylamide) [p(NIPAM-AA)] and HAuNPs. The amount of satellite HAuNPs (80 ppm) on 10 μL of 0.18 M p(NIPAM-AA) core varied from 6 to 12 mL. As-made p(NIPAM-AA)@HAuNP-8 sample reached a photothermal conversion efficiency of 56.9% and showed a high photothermal-mediated catalytic reduction rate. The reaction rate was enhanced from 0.162 to 0.354 min −1 by near-infrared irradiation, resulting in the effective photothermal effect of satellite HAuNPs and the enhanced LSPR-coupling between neighboring HAuNPs through the shrinkage of the p(NIPAM-AA) core. The results showed that the localized heating of p(NIPAM-AA)@HAuNP-8s effectively enhances the catalytic activity through the photothermal effect without the need to heat the entire solution with additional heating.

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Section: Introductionmentioning

confidence: 99%

Photothermal-Mediated Catalytic Reduction of 4-Nitrophenol Using Poly(N-isopropylacrylamide-acrylamide) and Hollow Gold Nanoparticles

Moon

Kim

2021

ACS Appl. Polym. Mater.

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“…Meanwhile, the Pd/PAu electrode demonstrated a strong electrochemical performance and showed rapid removal efficiency for PNP. 42 In 2018, Kamei et al synthesized nickel/single-walled carbon nanotubes (SG-SWCNTs) using an overgrowth process, and they exhibited an excellent effect on PNP catalytic reduction. 43 Now, for noble metal catalysts, their application is limited due to their high price.…”

Section: Introductionmentioning

confidence: 99%

Construction of a triazine polycarboxylate Co-MOF with flexible and rigid coordination arms as well as excellent catalytic reduction and adsorption properties

et al. 2023

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“…Among them, electrochemical method is widely used in the detection of environmental pollutants due to their advantages of simplicity, rapidity, low cost, and in-situ detection. In this method, electrode materials commonly used are graphene [10], carbon nanotubes [11], metal oxides [12], metal nanomaterials [13] and so on. For example, Balasubramanian et al synthesized a new type of CoMnO 3 nanosheet by oxalic acid-assisted coprecipitation technology and used it as an electrocatalyst for the highly sensitive detection of 4-NP [14].…”

Section: Introductionmentioning

confidence: 99%

“…The detection has a wide detection range (0.31~50 µM) and a low detection limit (33 nM). Nanoporous gold (NPG) have excellent properties such as large specific surface area, high catalytic activity, and good electrical conductivity, and have been used in electrochemical detection [13,16].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of 4-Nitrophenol on a Nanoporous Gold Electrode Prepared by One-Step Anode Potential Step Method

Lai

Chen

Liu

et al. 2021

CSIJ

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The wastewater containing nitrophenol compounds is discharged into the water and soil environment, causing severe environmental pollution problems. In this paper, a one-step anodic potential step method involving Au(I) disproportionation was used to prepare nanoporous gold (D-NPG) electrodes for the electrochemical detection of 4-nitrophenol (4-NP) by differential pulse voltammetry (DPV). The D-NPG electrode has a high current response to the oxidation peak of 4-hydroxylaminophenol, a product of 4-NP electroreduction. This peak is used in the 4-NP detection. Under the optimized conditions, the resulting detection range is wide (0.01~20 µM) and the detection limit is low (3.5 nM), and its anti-interference ability is good. It can be used for the electrochemical detection of 4-NP in real water samples.

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Effect of a roughness factor on electrochemical reduction of 4-nitrophenol using porous gold

Cited by 7 publications

References 15 publications

Photothermal-Mediated Catalytic Reduction of 4-Nitrophenol Using Poly(N-isopropylacrylamide-acrylamide) and Hollow Gold Nanoparticles

Photothermal-Mediated Catalytic Reduction of 4-Nitrophenol Using Poly(N-isopropylacrylamide-acrylamide) and Hollow Gold Nanoparticles

Construction of a triazine polycarboxylate Co-MOF with flexible and rigid coordination arms as well as excellent catalytic reduction and adsorption properties

Electrochemical Detection of 4-Nitrophenol on a Nanoporous Gold Electrode Prepared by One-Step Anode Potential Step Method

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