A facile green synthesis of silver nanoparticles decorated silica nanocomposites using mussel inspired polydopamine chemistry and assessment its catalytic activity

Das, Tushar Kanti; Ganguly, Sayan; Bhawal, Poushali; Remanan, Sanjay; Ghosh, Sabyasachi; Das, Narayan Ch.

doi:10.1016/j.jece.2018.10.067

Cited by 50 publications

(12 citation statements)

References 84 publications

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“…Basically, aggregation of nanoparticles reduces the efficiency of the catalyst. To solve these problems, nanoparticles are crippled on various solid supports such as graphene, silica, aluminum oxide, hydroxyapatite, halloysite nanotube, and polymeric resin either with the help of various binding chemicals or mechanical interlocking [26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Mussel-inspired Ag/poly(norepinephrine)/MnO2 heterogeneous nanocatalyst for efficient reduction of 4-nitrophenol and 4-nitroaniline: an alternative approach

et al. 2020

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Noble metal-based surface chemistry is a well-practiced domain on interest in catalysis. A newborn in mussel-inspired coating based on catecholic chemistry, poly(norepinephrine) (PNE), has been synthesized via cyclization polymerization technique over MnO 2 nanosheets. The physisorped PNE macromolecular chains over MnO 2 nanosheets act as green reducing agent for silver ions resulting in arresting the quasi-spherical silver nanoparticles distributed over the MnO 2-PNE assembly. The catalytic activity was performed against nitroaryl molecules which evidenced fast reduction with pseudo-first-order kinetics. The superiority which lies in this work is their facile preparation, high surface area due to sheet-like morphology, and fast catalytic reduction. These practical observations spread its window as nanocatalyst toward environmental remediation of hazardous nitroaryl compounds.

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Section: Introductionmentioning

confidence: 99%

Mussel-inspired Ag/poly(norepinephrine)/MnO2 heterogeneous nanocatalyst for efficient reduction of 4-nitrophenol and 4-nitroaniline: an alternative approach

et al. 2020

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“…The treatment of heavy metals present in wastewater can be treated using nanomaterials that are divided into two classes: one in situ, and the other ex situ. In the in situ treatment, nanomaterial-based technology has been applied to the place where it is polluted by heavy metals, whereas in the ex situ technologies, the wastewater solution is moved to other sites for treatment [154,155]. Three types of nanomaterials are used to treat heavy metals present in wastewater, namely adsorptive, reactive, and hybrid magnetic particles.…”

Section: Nanotechnologymentioning

confidence: 99%

Review on the Use of Heavy Metal Deposits from Water Treatment Waste towards Catalytic Chemical Syntheses

Das

Poater

2021

IJMS

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The toxicity and persistence of heavy metals has become a serious problem for humans. These heavy metals accumulate mainly in wastewater from various industries’ discharged effluents. The recent trends in research are now focused not only on the removal efficiency of toxic metal particles, but also on their effective reuse as catalysts. This review discusses the types of heavy metals obtained from wastewater and their recovery through commonly practiced physico-chemical pathways. In addition, it covers the advantages of the new system for capturing heavy metals from wastewater, as compared to older conventional technologies. The discussion also includes the various structural aspects of trapping systems and their hypothesized mechanistic approaches to immobilization and further rejuvenation of catalysts. Finally, it concludes with the challenges and future prospects of this research to help protect the ecosystem.

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“…ZnO NPs promote the adsorption process when nanoparticles attach to the dye slowly degrade the structure of the dye [55]. Synthesized polydopamine coated silver nanoparticles dispersed into hydrated silica released catalyst against 4-nitophenol reduced congo red degradation and potassium hexacyanoferrate (III) [56].…”

Section: Photodegradation Studiementioning

confidence: 99%

Green Synthesis of Zinc Oxide Nanoparticles (ZnO NPs) for Effective Degradation of Dye, Polyethylene and Antibacterial Performance in Waste Water Treatment

Raghavendra

Shankar

Govindappa

et al. 2021

J Inorg Organomet Polym

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At present, there is a vital need for river water purification by developing new approaches to eliminate bacterial biofilms, textile dyes, and Low-Density Polyethylene (LDPE) plastics that pose severe threats to human and environmental health. The current work put forward the construction of an eco-friendly green strategy to synthesize zinc oxide nanoparticles (ZnO NPs) using areca nut (Areca catechu) extract and their application to tackle the challenges in water purification. Prepared biogenic NPs were characterized by X-ray diffraction analysis (XRD), Fourier Transform Infra-Red (FT-IR), Energy Diffraction Spectroscopy (EDS), Scanning Electronic Microscopy (SEM), Transmission Electron Microscopy (TEM) analysis, confirmed the spherical shape in 20 nm and UV-vis spectroscopy. The characteristic absorption band exhibited at 326 nm confirmed the formation of ZnO NPs using UV-vis spectroscopy. Among all the tested bacterial pathogens, the E. coli at 50 µg/mL concentration showed the highest inhibition of biofilm activity, followed by the highest growth curve, cellular leakage, and potassium ion efflux. The ZnO NPs observed with photo-degradation of Rhodamine-B (Rh-B), Methylene Blue (MB), and Nigrosine dyes under sunlight irradiation at different time intervals. Finally, the photocatalytic activity of LDPE-ZnO NPs nanocomposite film showed the highest degradation under solar light irradiation were confirmed through photo-induced weight loss, SEM, FTIR, and MALDI-TOF analysis. This study demonstrates ZnO NPs exhibit efficacy against biofilm formation, degradation of photocatalytic textile dyes, and low-density LDPE film under solar light irradiation, which can be a step forward in water purification.

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A facile green synthesis of silver nanoparticles decorated silica nanocomposites using mussel inspired polydopamine chemistry and assessment its catalytic activity

Cited by 50 publications

References 84 publications

Mussel-inspired Ag/poly(norepinephrine)/MnO2 heterogeneous nanocatalyst for efficient reduction of 4-nitrophenol and 4-nitroaniline: an alternative approach

Mussel-inspired Ag/poly(norepinephrine)/MnO2 heterogeneous nanocatalyst for efficient reduction of 4-nitrophenol and 4-nitroaniline: an alternative approach

Review on the Use of Heavy Metal Deposits from Water Treatment Waste towards Catalytic Chemical Syntheses

Green Synthesis of Zinc Oxide Nanoparticles (ZnO NPs) for Effective Degradation of Dye, Polyethylene and Antibacterial Performance in Waste Water Treatment

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