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Research article 5
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Catalytica
 
Volume 1 - Issue 1 : Year 2019

Research Paper .

Microwave-assisted bioengineered CdS nanoparticles for photocatalytic and biological applications

K. Karthik (a, *), Maria P. Nikolova (b), Anukorn Phuruangrat (c), S. Vijayalakshmi (d), Hakimeh Mahdizadeh (e), D. Radhika (f), Adaeze A. Ojiaku (g), A. Rherari (h), V. Revathi (i), Urvashi Verma (j)

(a) Department of Physics, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India.
(b) Department of Material Science and Technology, University of Ruse “Angel Kanchev”, Ruse, Bulgaria.
(c) Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
(d) Department of of Microbiology, Shrimathi Indira Gandhi College, Tiruchirappalli, Tamilnadu 620 002, India.
(e) Department of Environmental Health, School of Public Health, Kerman University of Medical Sciences, Kerman, Iran.
(f) Department of Chemistry, School of Engineering and Technology, Jain University, Bangalore – 560 069, India.
(g) Department of Environmental Technology, Federal University of Technology, Owerri, Nigeria.
(h) Department of Physics, Laboratory of Optoelectronic and Physical Chemistry of Materials, Ibn Tofail University, Kenitra 14000, Morocco.
(i) Department of Physics, Dhanalakshmi Srinivasan Arts and Science College, Mallapuram, Chennai - 603 104, India.
(j) Department of Botany, D. S. B. Campus, Kumaun University, Nainital (Uttarakhand) - 263 001 India.

Catalytica 1 / 1 (2019) 40 – 50.

© Applied Science Innovations Private Limited, India.

Full Text (OPEN ACCESS) : Catalytica-6-1-1-2019-40-50.pdf

Published On : 14-08-2019 23:19:01

Abstract:

Microwave-assisted CdS nanoparticles were prepared using plant extract (Andrographis paniculata) and studied by using structural, morphological, optical, and antibacterial analysis. The results revealed a hexagonal structure of CdS nanoparticles with an average crystallite size of 19 nm. The FTIR peak at 601 cm-1 confirmed the vibration stretching of Cd-S bonds. SEM and TEM images demonstrated rod-like morphology of the nanoparticles. The optical bandgap of the prepared CdS nanoparticles was found to be equal to 2.51 eV. The photodegradation activity of the prepared nanoparticles for Rose Bengal dye was evaluated under sunlight irradiation. The degradation of the dye was equal to 99 % after 120 min. The antibacterial activity of CdS nanoparticles investigated against human pathogens indicated higher antimicrobial activity against gram-positive (S. aureus) as opposed to gram-negative (E.coli, E. typhi and P. aeruginosa) bacterial strains.


Keywords: CdS nanoparticles, antibacterial activity, photocatalysis, photocatalysis, dye degradation