Catalytic Reduction of Water Contaminant ‘4-Nitrophenol’ over Manganese Oxide Supported Ni Nanoparticles

Deka, Pangkita; Bhattacharjee, D.; Sarmah, Pingal; Deka, Ramesh C.; Bharali, Pankaj

doi:10.1007/978-3-319-39259-2_3

Cited by 13 publications

(5 citation statements)

References 33 publications

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“…Current concerns about water contamination affecting surface and groundwater have arisen due to its adverse health effects [31][32][33]. The main reason for this problem is the excessive concentration of harmful and persistent pollutants, especially 4-nitrophenol [34-36].…”

Section: Introductionmentioning

confidence: 99%

A Catalytic Reduction of 4-Nitrophenol Utilizing Bimetallic CuO-Co3O4 Nanoparticles Synthesized via Wrightia tinctoria Extract: A Green Approach

Jeevarathinam,

Halder,

Manoj

et al. 2024

ajc

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In this investigation, copper oxide (CuO), cobalt oxide (Co3O4) and bimetallic copper oxide-cobalt oxide (CuO-Co3O4) nanoparticles were synthesized using an aqueous extract of Wrightia tinctoria leaves and characterized through UV-Vis, FT-IR, XRD, TEM and zeta potential analyses. The FT-IR analysis identified that specific phytoconstituents are responsible for the reduction and capping agents in nanoparticle synthesis. TEM analysis determined size and shape and zeta potential analysis assessed stability. The CuO and Co3O4 NPs, synthesized through an eco-friendly approach, were employed for 4-nitrophenol reduction with sodium borohydride. The reaction rate, was computed at 1 × 10-4 s-1, which indicated the pseudo-first-order kinetics. The synthesis of 4-aminophenol was also successfully acheived demonstrated that the excellent catalytic activity of CuO, Co3O4 and CuO-Co3O4 nanoparticles as catalysts.

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Section: Introductionmentioning

confidence: 99%

A Catalytic Reduction of 4-Nitrophenol Utilizing Bimetallic CuO-Co3O4 Nanoparticles Synthesized via Wrightia tinctoria Extract: A Green Approach

Jeevarathinam,

Halder,

Manoj

et al. 2024

ajc

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“…In recent years, one issue that has generated signicant concern due to its adverse effects, mainly on human health, is the contamination of water (surface and groundwater), including the ocean. [1][2][3] The principal cause of this event is the high amounts of toxic and refractory pollutants, mainly 4-nitrophenol (4-NP), 1,[4][5][6] which is widely used in the pharmaceutical and textile industries 7,8 for the production of herbicides, insecticides, synthetic dyes, and paints, and as a corrosion inhibitor and pH indicator, among other applications. 4,9,10 Therefore, the reduction of 4-NP to 4-aminophenol (4-AP) has become a crucial issue, given that 4-AP is a compound with a lower degree of toxicity.…”

Section: Introductionmentioning

confidence: 99%

Reduction of 4-nitrophenol using green-fabricated metal nanoparticles

Mejía

Bogireddy

2022

RSC Adv.

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“…All of these processes have drawbacks, such as the need for hazardous solvents, potent reducing agents, expensive metals like Pt, Au and Pd, heat, high pressure and the production of hazardous byproducts. However, using AgNPs to reduce nitroaromatics is far superior to using any of these other methods because it is less expensive, non-toxic, produces no dangerous byproducts, and only needs ambient temperature and pressure [13]. The toxic and persistent organic pollutant known as p-nitrophenol has caused widespread concern because of its negative effects, particularly on human health.…”

Section: Introductionmentioning

confidence: 99%

Catalytic degradation of organic pollutant by biosynthesized silver nanoparticles using Trigonella foenum-graceum L. leaves

Moond

Singh

Sangwan

et al. 2023

Preprint

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The usefulness of plant extracts in the green synthesis of silver nanoparticles (AgNPs) have received a lot of interest since it is easy, environmentally benign, stable and economical. The present study involves biosynthesis of AgNPs using Trigonella foenum-graceum L. leaf extract belonging to specific variety HM (Hisar Mukta) 425. The different reaction conditions such as amount of leaf extract, temperature, concentration of silver nitrate, pH and incubation period were optimized by using UV-Visible spectrophotometer. The average particle size, morphology and elemental composition of the AgNPs were studied through UV-Vis spectroscopy, Particle size analyser (PSA), Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), High resolution transmission electron microscopy (HRTEM) and Fourier Transform Infrared Spectroscopy (FTIR). The average size of AgNPs was found to be 19 nm and were spherical in shape. The efficacy of AgNPs as a catalyst was confirmed by the 13 minutes completion of the organic pollutant p-nitrophenol (p-NP) reduction. Their catalytic capabilities strongly support the use of AgNPs in the purification of contaminated water.

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Catalytic Reduction of Water Contaminant ‘4-Nitrophenol’ over Manganese Oxide Supported Ni Nanoparticles

Cited by 13 publications

References 33 publications

A Catalytic Reduction of 4-Nitrophenol Utilizing Bimetallic CuO-Co3O4 Nanoparticles Synthesized via Wrightia tinctoria Extract: A Green Approach

A Catalytic Reduction of 4-Nitrophenol Utilizing Bimetallic CuO-Co3O4 Nanoparticles Synthesized via Wrightia tinctoria Extract: A Green Approach

Reduction of 4-nitrophenol using green-fabricated metal nanoparticles

Catalytic degradation of organic pollutant by biosynthesized silver nanoparticles using Trigonella foenum-graceum L. leaves

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