TY - JOUR
T1 - Mono- and Bimetallic Nanoparticles for Catalytic Degradation of Hazardous Organic Dyes and Antibacterial Applications
AU - Padre, Shilpa Molakkalu
AU - Kiruthika, S.
AU - Mundinamani, Shridhar
AU - Ravikirana,
AU - Surabhi, Srivathsava
AU - Jeong, Jong Ryul
AU - Eshwarappa, Kunabevu Mallikarjunappa
AU - Murari, Mudiyaru Subrahmanya
AU - Shetty, Vignesh
AU - Ballal, Mamatha
AU - S. C, Gurumurthy
N1 - Funding Information:
Shilpa Molakkalu Padre, Gurumurthy Sangam Chandrasekhar, and Mamatha Ballal acknowledge Manipal Academy of Higher Education for the funding facility. S. Kiruthika acknowledges SASTRA University, funding from SERB POWER Grant No. SPG/2020/000442, and DST for support through the DST-FIST Project (SR/FST/PS-1/2020/135). The authors are also grateful to the Mangalore University DST-PURSE laboratory for providing the FESEM and other facilities. Authors Srivathsava Surabhi and Jong-Ryul Jeong are greatly indebted to their organizations Universidad de Concepción (UdeC) (Programa Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT-postdoctoral Project No 3200832) de la Agencia Nacional de Investigación y Desarrollo (ANID), Chile), ESSS (Engineering Simulation Scientific Software) Chile SPA, and Chungnam National University, South Korea (NRF-South Korea Project No 2020R1A2C100613611) for simulation-related support and facilities.
Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.
PY - 2022/10/4
Y1 - 2022/10/4
N2 - In the present work, gold (Au), silver (Ag), and copper (Cu) based mono- and bimetallic NPs are prepared using a cost-effective facile wet chemical route. The pH for the synthesis is optimized in accordance with the optical spectra and supported by the finite difference time domain simulation studies. FESEM and TEM micrographs are used to analyze the morphology of the prepared nanoparticles. TEM images of bimetallic nanoparticles (BMPs) verified their bimetallic nature. XRD studies confirmed the formation of fcc-structured mono- and bimetallic NPs. Photoluminescence studies of the as-synthesized NPs are in good agreement with the previous publications. These synthesized NPs showed enhanced catalytic activity for the reduction/degradation of 4-nitrophenol, rhodamine B, and indigo carmine dyes in the presence of sodium borohydride (NaBH4) compared to NaBH4 alone. For the reduction of 4-nitrophenol, Au, Cu, and CuAg nanoparticles exhibited good catalytic efficiency compared to others, whereas for the degradation of rhodamine B and indigo carmine dyes the catalytic efficiency is comparatively high for CuAg BMPs. Furthermore, the antibacterial assay is carried out, and Ag NPs display effective antibacterial activity against Klebsiella pneumoniae, Salmonella ser. Typhimurium, Acinetobacter baumannii, Shigella flexneri, and Pseudomonas aeruginosa.
AB - In the present work, gold (Au), silver (Ag), and copper (Cu) based mono- and bimetallic NPs are prepared using a cost-effective facile wet chemical route. The pH for the synthesis is optimized in accordance with the optical spectra and supported by the finite difference time domain simulation studies. FESEM and TEM micrographs are used to analyze the morphology of the prepared nanoparticles. TEM images of bimetallic nanoparticles (BMPs) verified their bimetallic nature. XRD studies confirmed the formation of fcc-structured mono- and bimetallic NPs. Photoluminescence studies of the as-synthesized NPs are in good agreement with the previous publications. These synthesized NPs showed enhanced catalytic activity for the reduction/degradation of 4-nitrophenol, rhodamine B, and indigo carmine dyes in the presence of sodium borohydride (NaBH4) compared to NaBH4 alone. For the reduction of 4-nitrophenol, Au, Cu, and CuAg nanoparticles exhibited good catalytic efficiency compared to others, whereas for the degradation of rhodamine B and indigo carmine dyes the catalytic efficiency is comparatively high for CuAg BMPs. Furthermore, the antibacterial assay is carried out, and Ag NPs display effective antibacterial activity against Klebsiella pneumoniae, Salmonella ser. Typhimurium, Acinetobacter baumannii, Shigella flexneri, and Pseudomonas aeruginosa.
UR - http://www.scopus.com/inward/record.url?scp=85139555509&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85139555509&partnerID=8YFLogxK
U2 - 10.1021/acsomega.2c03784
DO - 10.1021/acsomega.2c03784
M3 - Article
C2 - 36211055
AN - SCOPUS:85139555509
SN - 2470-1343
VL - 7
SP - 35023
EP - 35034
JO - ACS Omega
JF - ACS Omega
IS - 39
ER -