Non-thermal plasma reduction of Ag+ ions into silver nanoparticles in open atmosphere under statistically optimized conditions for biological and photocatalytic applications
Authors:
- Noor Ul Huda Altaf,
- Muhammad Yasin Naz,
- Shazia Shukrullah,
- Madiha Ghamkhar,
- Muhammad Irfan,
- Saifur Rahman,
- Tomasz Jakubowski,
- Esam A. Alqurashi,
- Adam Glowacz,
- Mater H. Mahnashi
Abstract
An environmentally friendly non-thermal DC plasma reduction route was adopted to reduce Ag+ ions at the plasma–liquid interface into silver nanoparticles (AgNPs) under statistically optimized conditions for biological and photocatalytic applications. The efficiency and reactivity of AgNPs were improved by statistically optimizing the reaction parameters with a Box–Behnken Design (BBD). The size of the AgNPs was chosen as a statistical response parameter, while the concentration of the stabilizer, the concentration of the silver salt, and the plasma reaction time were chosen as independent factors. The optimized parameters for the plasma production of AgNPs were estimated using a response surface methodology and a significant model p < 0.05. The AgNPs, prepared under optimized conditions, were characterized and then tested for their antibacterial, antioxidant, and photocatalytic potentials. The optimal conditions for these three activities were 3 mM of stabilizing agent, 5 mM of AgNO3, and 30 min of reaction time. Having particles size of 19 to 37 nm under optimized conditions, the AgNPs revealed a 82.3% degradation of methyl orange dye under UV light irradiation. The antibacterial response of the optimized AgNPs against S. aureus and E. coli strains revealed inhabitation zones of 15 mm and 12 mm, respectively, which demonstrate an antioxidant activity of 81.2%.
- Record ID
- CUTf3475210006c46b1833912f486198a8f
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2022
- Vol
- 15
- No
- 11
- Pages
- [1-26]
- Article number
- 3826
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 23-26; Bibliografia (liczba pozycji) - 63; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 15, Iss. 11
- Keywords in English
- plasma reduction reaction, silver nanoparticles, response surface methodology, wastewater treatment, antioxidant activity
- ASJC Classification
- DOI
- DOI:10.3390/ma15113826 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/15/11/3826 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTf3475210006c46b1833912f486198a8f/
- URN
urn:pkr-prod:CUTf3475210006c46b1833912f486198a8f
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.