Biosynthesized gold nanoparticles as photocatalysts for selective degradation of cationic dye and their antimicrobial activity

Singh, Rohit Kumar; Behera, Saroj Sekhar; Singh, Khushboo; Mishra, Sourav; Panigrahi, Bijayananda; Sahoo, Tapas Ranjan; Parhi, Pankaj Kumar; Mandal, Dindyal

doi:10.1016/j.jphotochem.2020.112704

Cited by 68 publications

(16 citation statements)

References 88 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nanoparticles (NPs) can offer more efficient dye degradation owing to their specific physicochemical characteristics such as high surface to volume ratio [5]. So far, a wide variety of NPs including Au [6], CdS [7], TiO 2 [8,9], Manganese-doped ZnO [10], zinc ferrite [11], and iron nanoparticles (INPs) have been successfully used for dye degradation purposes [12]. INPs have been intensively probed for the degradation and removal of organic wastes owing to their versatile properties, high catalytic activities, and highly reactive surface functional groups [13].…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of iron-based nanoparticles using Chlorophytum comosum leaf extract: methyl orange dye degradation and antimicrobial properties

Ardakani

Alimardani

Tamaddon

et al. 2021

Heliyon

View full text Add to dashboard Cite

Nowadays, green synthesis methods have gained growing attention in nanotechnology owning to their versatile features including high efficiency, cost-effectiveness, and eco-friendliness. Here, the aqueous extract of Chlorophytum comosum leaf was applied for the preparation of iron nanoparticles (INPs) to obtain spherical and amorphous INPs with a particle size below 100 nm as confirmed by TEM. The synthesized INPs managed to eliminate methyl orange (MO) from the aqueous solution. The concentration of MO can be easily checked via ultraviolet-visible (UV-Vis) spectroscopy throughout the usage of INPs at the presence of H 2 O 2 . The synthesized INPs exhibited MO degradation efficiency of 77% after 6 h. Furthermore, the synthesized INPs exhibited antibacterial activity against both Gram-negative and Gram-positive bacteria. The prepared INPs have an impressive effect on Staphylococcus aureus at concentrations below 6 μg/ml. Overall, the synthesized INPs could considerably contribute to our combat against organic dyes and bacteria.

show abstract

Section: Introductionmentioning

confidence: 99%

Green synthesis of iron-based nanoparticles using Chlorophytum comosum leaf extract: methyl orange dye degradation and antimicrobial properties

Ardakani

Alimardani

Tamaddon

et al. 2021

Heliyon

View full text Add to dashboard Cite

show abstract

“…Au INPs actively suppress bacterial growth and are characterized by a wide spectrum of action. Bacterial strains that can be inhibited by gold NPs include S. epidermidis , S. aureus , E. coli , Bacillus megaterium , Bacillus subtilis , L. monocytogenes , S. typhimurium , K. pneumoniae , P. aeruginosa , B. subtilis [ 74 ], S. saprophyticus , E. faecalis , E. faecium , P. syringae , S. pyogenes , E. cloacae [ 75 ], Mycobacterium smegmatis , Mycobacterium tuberculosis [ 76 ], and some antibiotic-resistant bacterial strains ( Table 1 ). Au INP antibacterial activity increases with an increase in their specific surface area, as is typical for INPs.…”

Section: Inps As Promising Antibacterial Agentsmentioning

confidence: 99%

Nanoparticles of Bioactive Metals/Metal Oxides and Their Nanocomposites with Antibacterial Drugs for Biomedical Applications

et al. 2022

View full text Add to dashboard Cite

The increasing appearance of new strains of microorganisms resistant to the action of existing antibiotics is a modern problem that requires urgent decision. A promising potential solution is the use of nanoparticles of bioactive metals and their oxides as new antibacterial agents, since they are capable of affecting pathogenic microorganisms by mechanisms different from the mechanisms of action of antibiotics. Inorganic nanoparticles possess a wide spectrum of antibacterial activity. These particles can be easily conjugated with drug molecules and become carriers in targeted drug-delivery systems. This paper discusses the benefits and prospects of the application of nanoparticles from metals and metal oxides and their nanocomposites with antibacterial drugs.

show abstract

“…Green synthesized gold nanoparticles showed antimicrobial activity by confirming a significant inhibition of Mycobacterium smegmatis growth (zone of inhibition: 20 mm). Additionally, the maximum dye loading capacity of gold nanoparticles were 595.23 mg/g, and the dye degradation efficiency was found to be 87% after 20 min [38]. Naik et al (2013) prepared Au/TiO 2 nanocomposites using the aqueous extract of Cinnamomum tamala leaves as the reductant via a green method [39].…”

Section: Gold Nanoparticlesmentioning

confidence: 99%

Green Synthesis of Gold, Silver, and Iron Nanoparticles for the Degradation of Organic Pollutants in Wastewater

Kumar

2021

J. Compos. Sci.

View full text Add to dashboard Cite

The green synthesis of nanoscale materials is of special interest to researchers all over the world. We describe a simple, robust, inexpensive, and environmentally friendly approach to the synthesis of gold, silver, and iron nanoparticles using a variety of biomolecules/phytochemicals as potential reducers and stabilizers. The green approach to the controlled synthesis of nanoparticles with different morphologies is based on the use of plant extracts. Green synthesized nanoparticles can be used as catalysts, photocatalysts, adsorbents, or alternative agents for the elimination of various organic dyes. The kinetic enhancement of nanoparticles for the degradation/removal of dyes could provide significant and valuable insights for the application of biochemically functionalized nanoparticles in engineering. In this review, current plant-mediated strategies for preparing nanoparticles of gold, silver, and iron are briefly described, and morphologically dependent nanoparticles for the degradation of organic pollutants in wastewater are highlighted. Overall, the approach presented in the article supports environmental protection and is a promising alternative to other synthesis techniques.

show abstract

Biosynthesized gold nanoparticles as photocatalysts for selective degradation of cationic dye and their antimicrobial activity

Cited by 68 publications

References 88 publications

Green synthesis of iron-based nanoparticles using Chlorophytum comosum leaf extract: methyl orange dye degradation and antimicrobial properties

Green synthesis of iron-based nanoparticles using Chlorophytum comosum leaf extract: methyl orange dye degradation and antimicrobial properties

Nanoparticles of Bioactive Metals/Metal Oxides and Their Nanocomposites with Antibacterial Drugs for Biomedical Applications

Green Synthesis of Gold, Silver, and Iron Nanoparticles for the Degradation of Organic Pollutants in Wastewater

Contact Info

Product

Resources

About