Study on degradation of methyl orange-an azo dye by silver nanoparticles using UV–Visible spectroscopy

Bhankhar, A; Giri, Manoj; Yadav, Kanta; Jaggi, Neena

doi:10.1007/s12648-014-0555-x

Cited by 27 publications

(6 citation statements)

References 26 publications

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“…Hence, a catalyst is required to relay the electron from KBH 4 to the dye allow the degradation process to occur. Similar findings were observed by other researchers [28,29]. Surprisingly, approximately 50% of MO was decolourized in 43 minutes when both zeolite X and KBH 4 were present.…”

Section: Zeolite X and Kbhsupporting

confidence: 91%

Rapid Degradation of Methyl Orange by Ag Doped Zeolite X in the Presence of Borohydride

Abidin

Bakar

et al. 2017

Journal of Taibah University for Science

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A series of Ag nanoparticles impregnated on zeolite X (Ag-ZX) containing various amounts of Ag (in wt%) were prepared via impregnation method. The pristine zeolite X and Ag-ZX catalysts were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), N 2 adsorption desorption analyses and atomic absorption spectroscopy (AAS). The prepared catalysts were employed for the decolourization of methyl orange (MO) in the presence of potassium borohydride (KBH 4). Various parameters such as the amount of Ag impregnated, MO concentration, KBH 4 : MO mole ratios, pH and catalyst reusability were investigated. It was found that the best decolourization efficiency was obtained when 0.06 g of Ag-ZX (6.7) catalyst was employed using a KBH 4 : MO mole ratio of 731: 1 at pH 5. The degradation process obeyed pseudo first-order kinetics.

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Section: Zeolite X and Kbhsupporting

confidence: 91%

Rapid Degradation of Methyl Orange by Ag Doped Zeolite X in the Presence of Borohydride

Abidin

Bakar

et al. 2017

Journal of Taibah University for Science

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“…AgNPs synthesized from Salvinia molesta demonstrated the maximum adsorption capacity (121.04 mg/g) of methylene blue dye on the surface of AgNPs by Langmuir isotherm ( Batool, Daoush & Hussain, 2022 ). About 83% of MO dye was removed by using chemically synthesized AgNPs in the presence of NaBH 4 under optimized conditions ( Bhankhar et al, 2014 ). Table 4 depicts the summarized form of all the investigations and current investigations where AgNPs were used for the removal of MO from wastewater.…”

Section: Resultsmentioning

confidence: 99%

“…Based on the investigations mentioned in Table 4 , it was found that earlier, only a single attempt had been made to remove MO dyes from contaminated water by using AgNPs synthesized by chemical route, resulting in a removal percentage of 83% within a span of 2 min ( Bhankhar et al, 2014 ). There was only one attempt where dyes (MB, 4-NP, RB5, and RR120) were removed by using AgNPs synthesized by Pseudomonas sp ., where the removal efficiency varied from 40–100% under optimized conditions ( Rasheed et al, 2023 ).…”

Section: Resultsmentioning

confidence: 99%

Bacteriogenic synthesis of morphologically diverse silver nanoparticles and their assessment for methyl orange dye removal and antimicrobial activity

Patel,

Yadav,

Desai

et al. 2024

PeerJ

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Nanotechnology and nanoparticles have gained massive attention in the scientific community in recent years due to their valuable properties. Among various AgNPs synthesis methods, microbial approaches offer distinct advantages in terms of cost-effectiveness, biocompatibility, and eco-friendliness. In the present research work, investigators have synthesized three different types of silver nanoparticles (AgNPs), namely AgNPs-K, AgNPs-M, and AgNPs-E, by using Klebsiella pneumoniae (MBC34), Micrococcus luteus (MBC23), and Enterobacter aerogenes (MBX6), respectively. The morphological, chemical, and elemental features of the synthesized AgNPs were analyzed by using UV-Vis spectroscopy (UV-Vis), Fourier transform-infrared spectroscopy (FTIR), X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and energy-dispersive spectroscopy (EDX). UV-Vis absorbance peaks were obtained at 475, 428, and 503 nm for AgNPs-K, AgNPs-M, and AgNPs-E, respectively. The XRD analysis confirmed the crystalline nature of the synthesized AgNPs, having peaks at 26.2°, 32.1°, and 47.2°. At the same time, the FTIR showed bands at 599, 963, 1,693, 2,299, 2,891, and 3,780 cm−1 for all the types of AgNPs indicating the presence of bacterial biomolecules with the developed AgNPs. The size and morphology of the AgNPs varied from 10 nm to several microns and exhibited spherical to porous sheets-like structures. The percentage of Ag varied from 37.8% (wt.%) to 61.6%, i.e., highest in AgNPs-K and lowest in AgNPs-M. Furthermore, the synthesized AgNPs exhibited potential for environmental remediation, with AgNPs-M exhibiting the highest removal efficiency (19.24% at 120 min) for methyl orange dye in simulated wastewater. Further, all three types of AgNPs were evaluated for the removal of methyl orange dye from the simulated wastewater, where the highest dye removal percentage was 19.24% at 120 min by AgNPs-M. Antibacterial potential of the synthesized AgNPs assessment against both Gram-positive (GPB) Bacillus subtilis (MBC23), B. cereus (MBC24), and Gram-negative bacteria Enterococcus faecalis (MBP13) revealed promising results, with AgNPs-M, exhibiting the largest zone of inhibition (12 mm) against GPB B. megaterium. Such investigation exhibits the potential of the bacteria for the synthesis of AgNPs with diverse morphology and potential applications in environmental remediation and antibacterial therapy-based synthesis of AgNPs.

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“…Colored waste water in the ecosystem is a source of aesthetic pollution, eutrophication and perturbation in aquatic life (Bubacz et al, 2010). The investigation of dye-surfactant interactions is vital not only in dying process but also in dye elimination and dye degradation processes (Bhankhar et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Study of Methyl Orange-Cetyltrimethyl Ammonium Bromide Interaction by Conductivity Method in Methanol-Water Mixed Solvent Media

Khanal

2017

Int J Appl Sci Biotechnol

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The interaction of an anionic dye (Methyl Orange) with cationic surfactant (Cetyltrimethylammonium Bromide, CTAB) in the series of solvent containing variable compositions of methanol-water mixture (10%, 20%, 30% and 40%) was studied at room temperature (31±2 o C). Conductivity measurements were done for the investigation of interaction of dyes. The specific conductance of 6.58x10-5 M to 59.22x10 M surfactant (CTAB) and these surfactants with 1.008x10 -3 M dye (MO) mixtures were noted at room temperature. A theoretical model was used to calculate conductance ratio from the data of measured specific conductance values.Values of conductance ratio of CTAB-MO mixtures were found to be all less than 1 which indicated that CTAB-MO dye -surfactant mixture exert significant influence on the degree of interaction.

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Study on degradation of methyl orange-an azo dye by silver nanoparticles using UV–Visible spectroscopy

Cited by 27 publications

References 26 publications

Rapid Degradation of Methyl Orange by Ag Doped Zeolite X in the Presence of Borohydride

Rapid Degradation of Methyl Orange by Ag Doped Zeolite X in the Presence of Borohydride

Bacteriogenic synthesis of morphologically diverse silver nanoparticles and their assessment for methyl orange dye removal and antimicrobial activity

Study of Methyl Orange-Cetyltrimethyl Ammonium Bromide Interaction by Conductivity Method in Methanol-Water Mixed Solvent Media

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