scholarly journals Green synthesis of silver nanoparticles, characterization and evaluation of their photocatalytic dye degradation activity

2021 ◽  
pp. 100195
Author(s):  
Swati Jaast ◽  
Anita Grewal
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Dye Degradation ◽  
Degradation Activity ◽  
Photocatalytic Dye Degradation ◽  
Nanoparticles Characterization

scholarly journals Green Synthesis of Copper Nanoparticles, Characterization and Their Applications

2020 ◽  
pp. 10-24
Author(s):  
Swathi Pavithran ◽  
Manikantan Pappuswamy ◽  
Yamuna Annadurai ◽  
Vijaya Anand Armugam ◽  
Thirunavukkarasu Periyaswamy
Keyword(s):  
Green Synthesis ◽  
Copper Nanoparticles ◽  
Dye Degradation ◽  
Biological Effects ◽  
Nanoparticle Synthesis ◽  
Nanoparticles Characterization ◽  
Bacteria And Fungi ◽  
Analytical Tools ◽  
Physical And Chemical

Nanotechnology is one of the upcoming topics in the present era. Nanoparticles are synthesized by physical and chemical methods but limitations are due to their toxicity. Hence, green synthesis is more on demand which involves the use of plants, bacteria and fungi. In this review, copper nanoparticle synthesis is focused which is economically beneficial and eco-friendly when compared to other metal nanoparticles. Copper nanoparticles are used in diverse fields such as biomedicine, pharmaceuticals, bioremediation, molecular biology, bioengineering, genetic engineering, dye degradation, catalysis, cosmetics and textiles. Structural properties and biological effects of copper nanoparticles have promising affectivity in the field of life sciences. The characterization of biogenic copper nanoparticles by number of analytical tools for their compositional, morphological and topographical features has also been discussed.

Green Synthesis of Silver Nanoparticles Using Waste Tea Leaves

2020 ◽  
Vol 3 (1) ◽  
pp. 1-14
Author(s):  
Darshana Rajput ◽  
Samrat Paul ◽  
Annika Gupta
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Green Synthesis ◽  
Dye Degradation ◽  
Uv Spectroscopy ◽  
Cost Effective ◽  
Cotton Cloth ◽  
Textile Dye ◽  
Phenol Red ◽  
Tea Leaves

Green synthesis of silver nanoparticles has gained momentum since the demand to synthesize nanoparticles in an eco-friendly way has increased significantly. Here we report, economic and cost-effective biosynthesis of silver nanoparticles using waste of tea leaves (Camelia sinesis). The aim of the study was to biosynthesize silver nanoparticles and to assess its potential applications such as antibacterial activity, plant growth induction and dye degradation. Standardization studies were done using UV- Spectroscopy to determine the optimum synthesis condition for synthesis of silver nanoparticles. The optimum conditions were found to be pH 6.0, ambient temperature condition and 5mM AgNO3 concentration. Characterization studies using UV-Visible Spectroscopy, TEM and AFM analysis show nanoscale range of the particles. The silver nanoparticles showed maximum antibacterial activity against K. pneumonia followed by E. coli and minimum activity against C. diptheriae. The nanoparticles showed significant effect on the growth of Vigna radiata seeds at 50% concentration of nanoparticles. The particles immobilized on cotton cloth showed antibacterial activity against Gram positive organisms. Dye degradation studies showed that the nanoparticles are able to degrade phenol red and blue textile dye effectively.

Green synthesis of hausmannite nanocrystals and their photocatalytic dye degradation and antimicrobial studies

2016 ◽  
Vol 80 (2) ◽  
pp. 396-401 ◽  
Author(s):  
K. Mohan Kumar ◽  
S. Godavarthi ◽  
E. Vázquez Vélez ◽  
M. Casales Díaz ◽  
M. Mahendhiran ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Dye Degradation ◽  
Antimicrobial Studies ◽  
Photocatalytic Dye Degradation
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