Improved Photocatalytic Activity of ZnO Film Prepared via Green Synthesis Method Using Red Watermelon Rind Extract

Rini, Ari Sulistyo; Rati, Yolanda; Fadillah, Raysa; Farma, Rakhmawati; Umar, Lazuardi; Soerbakti, Yan

doi:10.5109/6625718

Cited by 4 publications

(1 citation statement)

References 62 publications

(68 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Watermelon’s red flesh is edible, but the rind is discarded because it has no use in commerce. However, cellulose, citrulline, pectin, proteins, and carotenoids are only a few of the bioactive substances that are abundant in watermelon rind [ 14 ]. The rind of the watermelon includes soluble carbohydrates (45–65%), carotenoids, alkaloids, saponin, and phytates.…”

Section: Introductionmentioning

confidence: 99%

Watermelon Rind Mediated Biosynthesis of Bimetallic Selenium-Silver Nanoparticles: Characterization, Antimicrobial and Anticancer Activities

Hashem,

El-Sayyad,

Al-Askar

et al. 2023

Plants

View full text Add to dashboard Cite

One of the most hazardous diseases that influences human health globally is microbial infection. Therefore, bimetallic nanoparticles have received much attention for controlling microbial infections in the current decade. In the present study, bimetallic selenium–silver nanoparticles (Se-Ag NPs) were effectively biosynthesized using watermelon rind WR extract through the green technique for the first time. UV-visible spectroscopy, transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDX) methods were used to characterize the produced NPs. The results indicated that the bimetallic Se-Ag NPs had synergistic antimicrobial activity at low concentrations, which helped to reduce the toxicity of Ag NPs after the bimetallic Se-Ag NPs preparation and increase their great potential. Se-Ag NPs with sizes ranging from 18.3 nm to 49.6 nm were detected by TEM. Se-Ag NP surfaces were uniformly visible in the SEM picture. The cytotoxicity of bimetallic Se-Ag NPs was assessed against the Wi38 normal cell line to check their safety, where the IC50 was 168.42 µg/mL. The results showed that bimetallic Se-Ag NPs had antibacterial action against Candida albicans, Escherichia coli, Pseudomonas aeruginosa, Klebsiella oxytoca, Bacillus subtilis, and Staphylococcus aureus with a minimum inhibitory concentration (MIC) of 12.5 to 50 µg/mL. Additionally, bimetallic Se-Ag NPs had promising anticancer activity toward the MCF7 cancerous cell line, where the IC50 was 21.6 µg/mL. In conclusion, bimetallic Se-Ag NPs were biosynthesized for the first time using WR extract, which had strong antibacterial, antifungal and anticancer properties.

show abstract

Section: Introductionmentioning

confidence: 99%

Watermelon Rind Mediated Biosynthesis of Bimetallic Selenium-Silver Nanoparticles: Characterization, Antimicrobial and Anticancer Activities

Hashem,

El-Sayyad,

Al-Askar

et al. 2023

Plants

View full text Add to dashboard Cite

show abstract

Biosynthesis of nanoflower Ag-doped ZnO and its application as photocatalyst for Methylene blue degradation

Rini

Defti

Dewi

et al. 2023

Materials Today: Proceedings

View full text Add to dashboard Cite

Enhancing DSSC Performance through Chlorophyll and Porphyrin Dye Incorporation on TiO2-ZnO: Al Composites

Wuryanti,

Gantina,

Kurniasetiawati

2024

Chem. J. Mold.

View full text Add to dashboard Cite

This research systematically investigates the impact of porphyrin and chlorophyll dyes on Dye-Sensitized Solar Cells (DSSC) performance, aims to achieve maximum solar cell efficiency. This investigation involved the use of Fluorine-doped Tin Oxide (FTO) coating with TiO2–ZnO composite, incorporating Al doping, and introducing variations in the concentration of chlorophyll SP and porphyrin (2:2:0.1 and 2:2:0.2). Synthesis of Al-doped ZnO was carried out via the sol-gel method, which involves mixing and heating at 65°C, followed by degradation at 150°C. TiO2 and ZnO: Al composites were formed using the sonication method at 45°C for 60 minutes. This study evaluates the impact of dyes on the growth of TiO2 and ZnO: Al composites and examines their characteristics - including UV-Vis, band gap, current versus voltage curves, DSSC efficiency-using EDX, and FTIR analyses of solar cells. The DSSC efficiency testing utilizes a photon light source from a halogen lamp with an intensity of 328-580 lux. The results showed that DSSC based on TiO2–ZnO: Al + chlorophyll produced an efficiency of 13.3%, while porphyrin (2:2:0.1) and (2:2:0.2) produced an efficiency of 8.9% and 13.9%, respectively. In conclusion, this study shows that adding dye to the TiO2–ZnO: Al composite significantly improves DSSC performance and shows optimal characteristics. The highest DSSC efficiency of 13.9% underscores the interdependence of absorber layer quality with photovoltaic performance, providing valuable insights for future solar cell design and optimization.

show abstract

Improved Photocatalytic Activity of ZnO Film Prepared via Green Synthesis Method Using Red Watermelon Rind Extract

Cited by 4 publications

References 62 publications

Watermelon Rind Mediated Biosynthesis of Bimetallic Selenium-Silver Nanoparticles: Characterization, Antimicrobial and Anticancer Activities

Watermelon Rind Mediated Biosynthesis of Bimetallic Selenium-Silver Nanoparticles: Characterization, Antimicrobial and Anticancer Activities

Biosynthesis of nanoflower Ag-doped ZnO and its application as photocatalyst for Methylene blue degradation

Enhancing DSSC Performance through Chlorophyll and Porphyrin Dye Incorporation on TiO2-ZnO: Al Composites

Contact Info

Product

Resources

About