A High-Performance Catalytic and Recyclability of Phyto-Synthesized Silver Nanoparticles Embedded in Natural Polymer

Manjari, G.; Sarangapany, Saran; Veerabhali, Kiran Kumar; Devipriya, Suja P.; Arava, Vijaya Bhaskara Rao

doi:10.1007/s10876-017-1280-3

Cited by 20 publications

(8 citation statements)

References 19 publications

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“…As shown in Figure S5 , the original aqueous 4-NP solution has a maximum absorption peak at 317 nm. If the catalysts are absent, the absorption peak at 317 nm is unchanged even after a couple of days [ 20 ]. Once freshly obtained NaBH 4 solution is added, the absorption peak at 317 nm shifts to 400 nm due to the formation of 4-nitrophenolate ions, and meanwhile, the color of the mixture changes from light yellow to dark yellow [ 92 ].…”

Section: Resultsmentioning

confidence: 99%

“…Especially, Au nanoparticles (NPs) have been intensely explored because of their unique and tunable optical properties and high catalytic activities [ 15 , 16 , 17 , 18 , 19 ]. Compared to the semiconductor photocatalysts, noble metal catalysts possess higher catalytic activity with respect to organic pollutants [ 20 , 21 , 22 , 23 , 24 ]. Typically, Au NPs have been intensely employed for the catalytic reduction of a variety of organic pollutants [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Catalytic Reduction of 4-Nitrophenol Driven by Fe3O4-Au Magnetic Nanocomposite Interface Engineering: From Facile Preparation to Recyclable Application

et al. 2018

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In this work, we report the enhanced catalytic reduction of 4-nitrophenol driven by Fe3O4-Au magnetic nanocomposite interface engineering. A facile solvothermal method is employed for Fe3O4 hollow microspheres and Fe3O4-Au magnetic nanocomposite synthesis via a seed deposition process. Complementary structural, chemical composition and valence state studies validate that the as-obtained samples are formed in a pure magnetite phase. A series of characterizations including conventional scanning/transmission electron microscopy (SEM/TEM), Mössbauer spectroscopy, magnetic testing and elemental mapping is conducted to unveil the structural and physical characteristics of the developed Fe3O4-Au magnetic nanocomposites. By adjusting the quantity of Au seeds coating on the polyethyleneimine-dithiocarbamates (PEI-DTC)-modified surfaces of Fe3O4 hollow microspheres, the correlation between the amount of Au seeds and the catalytic ability of Fe3O4-Au magnetic nanocomposites for 4-nitrophenol (4-NP) is investigated systematically. Importantly, bearing remarkable recyclable features, our developed Fe3O4-Au magnetic nanocomposites can be readily separated with a magnet. Such Fe3O4-Au magnetic nanocomposites shine the light on highly efficient catalysts for 4-NP reduction at the mass production level.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Catalytic Reduction of 4-Nitrophenol Driven by Fe3O4-Au Magnetic Nanocomposite Interface Engineering: From Facile Preparation to Recyclable Application

et al. 2018

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“…The synthesized AgNP was embedded in natural polymer alginate. The preparation of Ag-CA composite was facile, stable, efficient, eco-friendly, easy to recycle, non-toxic, and cost effective for commercial application [40]. Benelli et al used an aqueous extract of A. elaeagnoidea, for synthesizing silver nanoparticles that were toxic to Culex quinquefasciatus, Aedes aegypti, and Anopheles stephensi mosquitoes [41].…”

Section: Biological Activitymentioning

confidence: 99%

An Overview on the Biological Perspectives of Aglaia Species

Priya

Muthuraman

2018

Asian J Pharm Clin Res

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Medicinal plants have been identified and used throughout human history for treating various diseases. Plants belonging to genus Aglaia have been used in traditional system of medicine. The genus Aglaia is a member of Meliaceae family. The plants belonging to this genus have various biological activities including antipyretic, astringent, antidiarrheal, antidysenteric, anti-inflammatory, and anticancer activity and are also used in treating skin diseases and tumors. The phytochemistry and the various biological activities of Aglaia sp. such as anticancer, anti-inflammatory, antioxidant, antidiabetic, and nanoparticle activity are discussed in this review paper.

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“…11,12 When catalytic activity and chemical/physical stability are concerned, noble metal nanoparticles (NPs), including platinum (Pt), silver (Ag), and gold (Au) have been considered as the optimal catalysts. 2,13,14 However, the poor colloidal stability, originating from their high surface area, and difficulty in separation cause the decrease of active sites and catalytic performance for the reduction of organic dyes. 15 In addressing this issue, the use of various supports to deposit noble metal NPs on their surfaces has been reported.…”

Section: Introductionmentioning

confidence: 99%