Efficient reduction of dyes to leuco form over silver nanoparticles on functionalised SBA-15 and aminoclay

Vandarkuzhali, S. Anbu Anjugam; Pachamuthu, Muthusamy Poomalai; Vasudevan, Srinivasan Vinju; Mohamed, Sayed Iqbal; Abd-Rabboh, Hisham S.M.; Hamdy, Mohamed S.; Balamurugan, V.

doi:10.1080/03067319.2020.1811257

Cited by 5 publications

(4 citation statements)

References 51 publications

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“…Later, leuco reactive yellow gets desorbed from the surface nanoparticles as colorless product. Similar mechanism of dye degradation by AgNPs in presence of NaBH 4 has been proposed by other authors (Vandarkuzhali et al, 2020; Yadav et al, 2019). Further, as per Garg et al (2020) and Sumi Maria et al (2015), AgNPs mediate electron transfer during catalytic degradation of dye.…”

Section: Resultssupporting

confidence: 85%

Antimicrobial and dye degradation application of fungi‐assisted silver nanoparticles and utilization of fungal retentate biomass for dye removal

Gola

Tyagi

Arya

et al. 2021

Water Environment Research

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The present study utilized Aspergillus spp. for the synthesis of silver nanoparticles (AgNPs); the developed AgNPs were categorized using analytical techniques, that is, ultraviolet–visible (UV–vis) spectrophotometer, Zeta‐potential, dynamic light scattering (DLS), and transmission electron microscopy (TEM). A sharp peak of 463 nm highlighted the synthesis of AgNPs; further Zeta‐potential of −16 mV indicates stability of synthesized AgNPs. The TEM micrograph showed spherical and hexagonal shapes of synthesized AgNPs of 6–25 nm. The photocatalytic activity of fungal‐mediated AgNPs was evaluated for degradation of reactive yellow dye in the concentration range of 20–100 mg L−1. The results showed efficient degradation of dye using AgNPs in short span of time. For antibacterial activity, synthesized AgNPs, antibiotic, and AgNPs + antibiotic were tested. As per results, the zone of inhibition (ZOI) of AgNPs showed the values of 13 and 10 mm for Escherichia coli and Staphylococcus aureus, respectively. Further, the ZOI of penicillin highlighted the values of 18 and 17 mm for E. coli and S. aureus, respectively. When AgNPs and penicillin were used in combination, a clear synergistic effect was observed; the ZOI showed 0.49‐ and 0.36‐fold increase in area against E. coli and S. aureus, respectively, in comparison with penicillin or AgNPs alone. Further, the leftover biomass (retentate biomass) was used to decolorize the reactive yellow dye at different initial concentration ranging from 20 to 100 mg L−1. It was observed that 1 g L−1 retentate biomass (BR) can effectively remove 82%–100% dye at 20 and 100 mg L−1 initial dye concentration. Results also indicated that with increase in initial reactive dye concentration from 20 to 100 mg L−1, the decolorization capacity of retentate biomass (BR) (at 0.2 g L−1) decreased from 79.2% to 32.3%. However, the use of AgNPs synthesized leftover fungal biomass can be a good option for up taking the additional dyes/contaminants, and also as leftover biomass can be utilized effectively, it can prove to be an excellent approach for environment safety. As the literature studies did not mentioned the further use of retentate biomass, the present study provides an excellent approach for further research on this aspect. Practitioner points Synthesis of AgNPs from Aspergillus spp. and characterized with the help of a U.V‐vis spectrophotometer, a zeta potential, DLS and TEM. The developed AgNPs were used for antibacterial and dye degradation activity. The left over (retentate) fungal biomass was used further for additional dye degradation activity

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Section: Resultssupporting

confidence: 85%

Antimicrobial and dye degradation application of fungi‐assisted silver nanoparticles and utilization of fungal retentate biomass for dye removal

Gola

Tyagi

Arya

et al. 2021

Water Environment Research

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“…During the degradation of PR, the characteristic absorption peak ( λ max = 570 nm) disappears due to the structural change of the chromophore. 113 Fig. 9[c] shows the percentage of catalytic degradation of the dye at different time intervals.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of the multifunctional activity of silver bionanocomposites in environmental remediation and inhibition of the growth of multidrug-resistant pathogens

2022

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“…It is reported that these drawbacks can be avoided by doping with appropriate elements, [7] creating nanocomposites, [8][9][10] making heterojunction with other semiconductors [11][12][13][14] and dispersing on suitable supports. [15][16][17][18] Choosing a relevant support is a crucial approach to enhancing the photocatalytic performance of Ag3PO4. SBA-15, a silica mesoporous molecular sieve has received great attention due to its large surface area, high adsorption capacity, high stability, and environmental benignity.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of adsorption‐photocatalysis bifunctional Ag₃PO₄/SBA‐15 for degradation of Rhodamine B

Mo,

Thanh,

Cam

2022

Vietnam Journal of Chemistry

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In present work, Ag3PO4/SBA‐15 was prepared for the degradation of rhodamine B dye (RhB). The synthesized material was characterized by XRD, FTIR, FESEM, ultraviolet‐visible diffuse reflectance spectroscopy, and photoluminescence spectrometry. The obtained results indicate that Ag3PO4/SBA‐15 inherits both the adsorption ability of SBA‐15 and photocatalytic activity of Ag3PO4, therefore, exhibits high efficiency in the degradation of RhB. The kinetics of the process was also studied. The optimum reaction time was determined to be 60 minutes. The process of dye degradation is 3/2‐order with respect to rhodamine B. The material shows high ability to be recovered with the relatively high photocatalytic stability.

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Efficient reduction of dyes to leuco form over silver nanoparticles on functionalised SBA-15 and aminoclay

Cited by 5 publications

References 51 publications

Antimicrobial and dye degradation application of fungi‐assisted silver nanoparticles and utilization of fungal retentate biomass for dye removal

Antimicrobial and dye degradation application of fungi‐assisted silver nanoparticles and utilization of fungal retentate biomass for dye removal

Evaluation of the multifunctional activity of silver bionanocomposites in environmental remediation and inhibition of the growth of multidrug-resistant pathogens

Synthesis of adsorption‐photocatalysis bifunctional Ag₃PO₄/SBA‐15 for degradation of Rhodamine B

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Efficient reduction of dyes to leuco form over silver nanoparticles on functionalised SBA-15 and aminoclay

Cited by 5 publications

References 51 publications

Antimicrobial and dye degradation application of fungi‐assisted silver nanoparticles and utilization of fungal retentate biomass for dye removal

Antimicrobial and dye degradation application of fungi‐assisted silver nanoparticles and utilization of fungal retentate biomass for dye removal

Evaluation of the multifunctional activity of silver bionanocomposites in environmental remediation and inhibition of the growth of multidrug-resistant pathogens

Synthesis of adsorption‐photocatalysis bifunctional Ag3PO4/SBA‐15 for degradation of Rhodamine B

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Synthesis of adsorption‐photocatalysis bifunctional Ag₃PO₄/SBA‐15 for degradation of Rhodamine B