Silver Nanoparticles: Synthesis, Characterization and their Application as a Sustainable Catalyst for Organic Transformations

Bhosale, Manohar A.; Bhanage, Bhalchandra M.

doi:10.2174/1385272819666150207001154

Cited by 76 publications

(40 citation statements)

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“…Degradation or reductions of these nitro compounds leading to the formation of safer products are therefore of high importance. A plethora of catalysts like Pt/Cu, Pd/Cu, Pd/Au, Pt/Au, Au/Cu, Pt−Ni, Au, Pt, and Pd supported on mesoporous SBA‐15, Ag NPs, Ag NPs impregnated hollow silicalite, IL‐modified fibrous nano‐silica material KCC, Pt NPs stabilized by guar gum, CoSe, Pd/Fe 3 O 4 @SiO 2 @m‐SiO 2 etc. have been designed to serve the reduction of nitro compounds.…”

Section: Resultsmentioning

confidence: 99%

Ultrasound Assisted Synthesis of Gold Nanoparticles as an Efficient Catalyst for Reduction of Various Nitro Compounds

2017

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A simple, one step and economical protocol for the synthesis of gold nanoparticles (Au NPs) have been developed via ultrasound probe sonicator with dimethyl sulfoxide (DMSO) as reducing agent as well as capping agent. Notably there is no need of additional surfactant or stabilizer for the synthesis of Au NPs. Size of the particles was controlled by varying the irradiation intervals of sonication. Spherical nanoparticles with uniform particle size ranging from 15–40 nm were achieved within short reaction time. The surface morphology, phase identification and chemical composition of the prepared Au NPs were characterized by Field emission gun‐scanning electron microscopy (FEG‐SEM), X‐ray diffraction (XRD) and energy dispersive X‐ray spectroscopy (EDS). The catalytic activity of the prepared gold catalyst was tested for the degradation of aromatic nitro compounds at room temperature. All the reactions were monitored using UV‐Vis spectrophotometer. Comprehensive UV‐Vis data for all the reduction reactions has been presented.

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Section: Resultsmentioning

confidence: 99%

Ultrasound Assisted Synthesis of Gold Nanoparticles as an Efficient Catalyst for Reduction of Various Nitro Compounds

2017

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“…AgNPs have been successfully employed for the catalytic degradation of dyes and pollutants [15,16]. AgNPs successfully employed as green and robust catalysts in different chemical reactions involving catalysis and organic transformations [17,18]. AgNPs have been widely employed in textile industries due to their antimicrobial efficacies which impart powerful anti-odor abilities to the clothes [19].…”

Section: Introductionmentioning

confidence: 99%

Eco-friendly synthesis of silver nanoparticles using leaf extract of Flemingia wightiana: spectral characterization, antioxidant and anticancer activity studies

et al. 2020

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In the present investigation, we report simple, robust and eco-friendly synthesis of silver nanoparticles (AgNPs) using leaf extract of Flemingia wightiana. The leaf extract of F. wightiana acts as reducing agent which reduces the silver ions into FW-AgNPs, as well as stabilizing agent by capping around them. Biosynthesized FW-AgNPs were characterized by different spectroscopic techniques. UV-Vis spectrum showed the characteristic SPR peak between 380 and 460 nm. EDX analysis revealed the presence of metallic silver at 3 keV. XRD analysis clearly revealed that FW-AgNPs are crystalline in nature with FCC structure. TEM analysis depicted the spherical morphology with 20-40 nm in size. DLS analysis showed that average hydrodynamic size and PDI value of FW-AgNPs were found to be 47.6 nm and 4.5 respectively. Biosynthesized FW-AgNPs showed high negative zeta potential value of − 25.3 mV. FTIR analysis revealed the participation of polyphenols and proteins in the bioreduction and stabilization of FW-AgNPs. FW-AgNPs showed strong DPPH and H 2 O 2 scavenging activity with IC50 values of 71.96 and 80.59 µg/mL respectively. Further FW-AgNPs also showed effective cytotoxicity against cancer cells including SKOV3 and COLO205 with maximum inhibition of 83.2% and 75.9% respectively.

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“…Silver nanoparticles were characterized by using UV-vis-spectrophotometric analysis. The band at 443 nm confirmed the formation of silver nano-particles (A Bhosale and M Bhanage, 2015). Hydrogel beads were synthesized by gelation process of sodium alginate and carbopol 937.…”

Section: Sodium Alginate Based Hydrogels For Water Purificationmentioning

confidence: 99%

Recent progress in sodium alginate based sustainable hydrogels for environmental applications

Thakur

Sharma

Verma

et al. 2018

Journal of Cleaner Production

364

116

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Recently, there is a growing research interest in the applications and development of novel sustainable hydrogel materials in waste water treatment because of radically distinctive chemical and physical characteristics of hydrogels such as hydrophilicity, swell ability and modifiability to name a few. Hydrogels have exposed the hypernym functioning in the removal of a wide range of aqueous pollutants containing toxic dyes and heavy metal ions. A large amount of water gets incorporated in the three dimensional networks of hydrophilic structures of hydrogels. The prime objective of this review article is to render a presentation on the recent advances in the modifications of sodium alginate based hydrogels for the adsorptive removal of toxic pollutants. In addition, article also briefly gives the classification and properties of hydrogels and alginate.

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Silver Nanoparticles: Synthesis, Characterization and their Application as a Sustainable Catalyst for Organic Transformations

Cited by 76 publications

References 0 publications

Ultrasound Assisted Synthesis of Gold Nanoparticles as an Efficient Catalyst for Reduction of Various Nitro Compounds

Ultrasound Assisted Synthesis of Gold Nanoparticles as an Efficient Catalyst for Reduction of Various Nitro Compounds

Eco-friendly synthesis of silver nanoparticles using leaf extract of Flemingia wightiana: spectral characterization, antioxidant and anticancer activity studies

Recent progress in sodium alginate based sustainable hydrogels for environmental applications

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