Ziziphus mauritiana-derived nitrogen-doped biogenic carbon dots: Eco-friendly catalysts for dye degradation and antibacterial applications

Subramani Rajapandi; Senthilkumar Nangan; Thirumalaivasan Natesan; Anuj Kumar; Govindaraj Dharman; M Pandeeswaran; Deepak Verma; Mohd Ubaidullah; Bidhan Pandit; Navdeep Dhaliwal; Satbir S Sehgal; Rajavel Rangappan; G N Kousalya

doi:10.1016/j.chemosphere.2023.139584

Ziziphus mauritiana-derived nitrogen-doped biogenic carbon dots: Eco-friendly catalysts for dye degradation and antibacterial applications

Chemosphere. 2023 Oct:338:139584. doi: 10.1016/j.chemosphere.2023.139584. Epub 2023 Jul 19.

Authors

Affiliations

¹ PG and Research Department of Chemistry, GTN Arts College (Autonomous), Dindigul, Tamilnadu, 624 005, India.
² Department of Chemistry, Graphic Era Deemed to be University, Dehradun, Uttarakhand, 248002, India.
³ Department of Periodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMTAS), Chennai, 600077, Tamilnadu, India.
⁴ Department of Chemistry, GLA University, Mathura, 281406, India.
⁵ Department of Materials Engineering, Purdue University, West Lafayette, 47907, United States.
⁶ Department of Mechanical Engineering, Graphic Era Hill University, Dehradun, Uttarakhand, 248002, India.
⁷ Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
⁸ Department of Materials Science and Engineering and Chemical Engineering, Universidad Carlos III de Madrid, Avenida de la Universidad 30, 28911 Leganés, Madrid, Spain.
⁹ Devisioin of Research and Development Lovely Professional University, Phagwara, Punjab, India.
¹⁰ Devision of Research Innovation, Uttranchal University, Dehradun, India.
¹¹ Department of Chemistry, Periyar University, Salem, 636011, Tamilnadu, India.
¹² PG and Research Department of Chemistry, GTN Arts College (Autonomous), Dindigul, Tamilnadu, 624 005, India. Electronic address: drgnkousalya@gmail.com.

PMID: 37478987
DOI: 10.1016/j.chemosphere.2023.139584

Abstract

In this study, the naturally available Ziziphus Mauritiana was used as a bioresource for the preparation of bifunctional nitrogen doped carbon dots (N-CDs). The doping of nitrogen into the graphitic carbon skeleton and the in-situ formation of N-CDs were systematically identified by the various structural and morphological studies. The green fluorescent N-CDs were used as active catalysts for the removal of Safranin-O dye and achieved 79 % removal efficiency. Furthermore, the prepared N-CDs were used to evaluate antibacterial activity with four different bacterial species, such as Shigella flexneri, Staphylococcus aureus, Streptococcus pyogenes, and Klebsiella pneumoniae. Amongst these, the highest antimicrobial activity was achieved against Klebsiella pneumonia, with a maximum zone of inhibition of 14.6 ± 1.12 at a concentration of 100 g mL^-1. Thus, the obtained results demonstrate the cost efficient bifunctional application prospects of N-CDs to achieve significant catalytic and antibacterial activities.

Keywords: Antimicrobial assay; Catalytic activity; Hydrothermal synthesis; N-CDs; Safranin O-Dye; Ziziphus mauritiana.

MeSH terms

Carbon / chemistry
Catalysis
Fluorescent Dyes / chemistry
Graphite*
Nitrogen / chemistry
Quantum Dots* / chemistry
Ziziphus*

Substances

Carbon
Nitrogen
Graphite
Fluorescent Dyes