The green approach has been employed for the synthesis of various types of nanomaterials including metal nanoparticles, metal oxides, and carbon-based nanomaterials. These processes involve natural sources that contain bioactive compounds that act as reducing, stabilizing, and capping agents for the formation and stabilization of nanomaterials. This study reports the green synthesis of CdS and CdS/rGO nanocomposites using Lactobacillus bacteria. The UV-visible spectrophotometer, field emission scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, Raman spectroscopy, and Fourier transform infrared spectroscopy spectra confirm the synthesis of the nanocomposite. The electrochemical characterization using cyclic voltammetry, differential pulse voltammetry, and EIS revealed that the CdS/rGO nanocomposites showed a higher electron transfer rate compared with CdS nanoparticles, indicating the potential of the nanocomposites for biosensing applications. The zone of inhibition revealed significant antimicrobial activity against and for both CdS nanoparticles and CdS/rGO nanocomposites. Additionally, CdS/rGO nanoparticles exhibited high photocatalytic activity for the degradation of methylene blue dye. Overall, this study demonstrates that the synthesized CdS and CdS/rGO nanocomposites have good electrochemical properties, photocatalytic, and antimicrobial activity and, therefore, can be employed for various applications such as biosensing, photocatalysis, and antimicrobial activity.
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http://dx.doi.org/10.1021/acsabm.3c00390 | DOI Listing |
ACS Appl Bio Mater
September 2023
CSIR-Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal 462026, Madhya Pradesh, India.
The green approach has been employed for the synthesis of various types of nanomaterials including metal nanoparticles, metal oxides, and carbon-based nanomaterials. These processes involve natural sources that contain bioactive compounds that act as reducing, stabilizing, and capping agents for the formation and stabilization of nanomaterials. This study reports the green synthesis of CdS and CdS/rGO nanocomposites using Lactobacillus bacteria.
View Article and Find Full Text PDFACS Appl Mater Interfaces
September 2020
Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States.
Nanocomposite photocatalysts offer a promising route to efficient and clean hydrogen production. However, the multistep, high-temperature, solvent-based syntheses typically utilized to prepare these photocatalysts can limit their scalability and sustainability. Biosynthetic routes to produce functional nanomaterials occur at room temperature and in aqueous conditions, but typically do not produce high-performance materials.
View Article and Find Full Text PDFJ Photochem Photobiol B
March 2019
Department of Oncology, Zhongshan Hospital, Wuhan University, Wuhan 430033, PR China. Electronic address:
Cancer is one of the death causing disease is always being a public health concern due to its rapid increase in the world population. Hyperthermal therapy is an anticancer treatment mutually given with chemotherapy. In the present study, CdS/rGO nanocomposites were synthesized using simple and scalable solvothermal method and applied as an efficient material in anticancer treatment.
View Article and Find Full Text PDFSci Total Environ
September 2018
Department of Environmental Engineering, Kyungpook National University, Daegu 702-701, South Korea. Electronic address:
The efficient photocatalytic degradation of harmful organic pollutants (isoniazid (ISN) and 1,4-dioxane (DX)) via the Z-scheme electron transfer mechanism was accomplished using a photostable composite photocatalyst consisting of BiVO, CdS, and reduced graphene oxide (RGO). Compared to their pristine counterparts, the RGO-mediated Z-scheme CdS/BiVO (CdS/RGO-BiVO) nanocomposites exhibited superior degradation activities, mainly attributed to the prolonged charge separation. RGO was found to be involved in visible-light harvesting and acted as a solid-state electron mediator at the CdS/BiVO interface to realize an effective Z-scheme electron transfer pathway, avoid photocatalyst self-oxidation, and lengthen the life span of charge carriers.
View Article and Find Full Text PDFJ Photochem Photobiol B
January 2018
Department of Urology Surgery, Huangshi Central Hospital, EDONG Healthcare, Huangshi, Hubei Province 435000, China. Electronic address:
In spite of the technological innovation in the biomedical science, cancer remains a critical disease. In this study, we designed a gallic acid/cadmium sulfide (GA/CdS) nanocomposite fabricated on the reduced graphene oxide (GA/CdS-rGO) nanosheets for the treatment system of human kidney cancer cells. The GA/CdS-rGO nanosheets have been prepared using gallic acid as a reducing agent.
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