Biosynthesis of ZnO Nanoparticles Using Pumpkin Peel Extract  (Cucurbita moschata) and its Applications as Semiconductor in Dye Sensitized Solar Cell (DSSC)

Saridewi, Nanda; Firdaus, Dzikri Anfasa; Aziz, Isalmi; Kumila, Biaunik Niski; Dasumiati, Dasumiati

doi:10.15408/jkv.v7i2.21046

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…The peak observed at 1630 cm À 1 likely corresponds to a vibrational (C=O stretch) mode. [15] The bioreduction and interactions of SeNPs with SqM are designated from the variation between the spectrum of plain SqM (Figure 2-SqM) and after conjugation with SeNPs (Figure 2-SqM/SeNPs). Numerous bands were emerged or appeared with higher intensity (marked with blue highlighted zones), e. g. within 1000-1060 cm À 1 ,1250-2000 cm À 1 , and 3485-3920 cm À 1 ranges, which indicate the formation of novel bonds between SeNPs and SqM biomolecules during nanoparticles' synthesis.…”

Section: Ftir Analysismentioning

confidence: 99%

“…While it may not be considered a traditional antibacterial agent like antibiotics, butternut squash does contain several compounds and components that can have antibacterial properties and contribute to overall health. [15] Marine biopolymers represent a fascinating and ecologically significant class of natural compounds derived from marine organisms. These biopolymers, which include substances like chitin, chitosan, and carrageenan, are essential structural components found in the tissues of various marine organisms, such as algae, crustaceans, and mollusks.…”

Section: Introductionmentioning

confidence: 99%

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Antimicrobial Nanocomposites from Chitosan and Squash Synthesized Nano‐Selenium Eradicate Skin Pathogens

Meshref,

Omar,

Moussa

et al. 2024

ChemistrySelect

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Skin health and protection are paramount in the pursuit of well‐being and beauty. In this study, we introduce an innovative approach to develop skin protectant agents by nanocomposites derived from natural sources, involves the synthesis of selenium nanoparticles (SeNPs) using squash plant mucilage (SqM), and their integration with nano chitosan (NCht) to create a stable, antimicrobial and efficacious composite. The interactions between nanomaterials were proved via infra‐red analysis and electron microscopy. The SqM‐biosynthesized SeNPs had 11.47 nm diameter. Different blends were nanocomposited from NCht and SqM/SeNPs; the NC‐2 nanocomposite (with equal ratios from them) had mean diameter of 241.38 nm and negatively charged. The antimicrobial actions of produced nanomaterials/nanocomposites were validated against skin pathogens, Staphylococcus aureus and Candida albicans, using antimicrobial assays and electron microscopy. The most effectual antimicrobial was NC‐2; the loading of it onto cotton textile provided potent antimicrobial fabrics toward both skin pathogens. The innovative biosynthesis of SeNPs using SqM and their nanocompositing with NCht provided pioneering powerful antimicrobial complexes to control skin pathogens, either through direct interaction or by fabricating hygienic antimicrobial textiles.

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Section: Ftir Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antimicrobial Nanocomposites from Chitosan and Squash Synthesized Nano‐Selenium Eradicate Skin Pathogens

Meshref,

Omar,

Moussa

et al. 2024

ChemistrySelect

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show abstract

“…Agglomeration of ZnO nanoparticles occurred due to the influence of polarity, ZnO electrostatic power, and enormous energy on the surface of nanoparticles during the synthesis process 13,24,25 . Besides that, agglomeration is thought to happen because many chemical compounds in avocado seed extract react with other molecules 14,26 . In addition, agglomeration can be caused by a dispersion process during measurement, and no screening process is carried out first.…”

Section: Morphology Sem Of Nanoparticles Zno and Zno-tio2 7%mentioning

confidence: 99%

Synthesis of ZnO-TiO2 Nanoparticles by Sol-Gel Process and its Application for Solar Cell Semiconductor

Saridewi,

Riyanti,

Aziz

et al. 2023

Valensi

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ZnO-TiO2 semiconductor can be used in Dye-Sensitized Solar Cell (DSSC) devices as an alternative to renewable energy. This semiconductor can be synthesized by sol-gel method. The objective of this study is synthesizing the TiO2-doped ZnO nanoparticle semiconductors for DSSC devices with mangosteen peel extract dye. Avocado seeds were extracted with water, as a capping agent in the synthesis of ZnO-TiO2 (TiO2 ratio of 0,3,5,7 and 10% to ZnO). XRD results show the success of ZnO-TiO2 doping, due to the 2θ shift and changes in the crystal lattice. The average crystal size obtained was 33.7972 nm. The SEM results showed that the particle size of ZnO ranged from 45-100 nm. The UV-Vis dye measurements of mangosteen peel extract showed an absorption peak at 296-483 nm wavelength, with a corresponding band gap energy value of 3.04 eV. The UV-Vis DRS ZnO-TiO2 measurements have an average band gap energy of 3.1425 eV and ZnOof 3.1915 eV. The highest DSSC efficiency value is 2.15 x 10-2% at 7% ZnO-TiO2 semiconductor.

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Dye-Sensitized Solar Cells Characterization of Kitolod Leaves (Hippobroma longifora)

Rohmah,

Yuwita,

Pangestu

et al. 2024

J. Pendidik. Fis. Teknol.

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Energy from fossil fuels is decreasing day by day and also causes many environmental problems. In the current era, many environmentally friendly renewable energy sources have been developed, such as the development of DSSC (Dye Sensitized Solar Cells). DSSC is a technology that utilizes colored materials sourced from nature which are used as absorbers of sunlight energy to be converted into electrical energy. In this research, the synthesis and characterization of organic material from kitolod leaves as DSSC will be carried out. Kitolod leaves (Hippobroma longifora) are wild plants that usually grow in home gardens and rice fields. Kitolod leaves which have chlorophyll can support the absorption of sunlight if applied as a sensitizer in DSSC. The methods that will be used in this research are making TiO2 paste, dye solution preparation, electrolyte solution preparation, DSSC fabrication, testing and characterization. The tests that will be carried out are testing the TiO2 layer, dye absorption, and electric current. Meanwhile, the characterization that will be carried out is dye absorption using UV-Vis, and electric current using a potentiometer. From the results of light absorption shows that when the wavelength is 500 nm or the green light spectrum, the maximum light absorption by the chlorophyll of kitolod leaves is 1.78 (a.u.). The maximum voltage (Vm) and maximum current (Im) in daylight lamps have greater values compared to warm white lamps. The highest efficiency of the solar light source is shown when the air mass is 1.5 (08.30-08.40). The time of DSSC immersion in dye also influences the resulting of Vm and Im values which can be shown in that the Vm and Im values of DSSC 2 (30 minutes) are greater than those of DSSC 1 (10 minutes). The results of open circuit voltage (Voc) and the short circuit current (Isc) in this research still need to be improved to produce better efficiency.

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Biosynthesis of ZnO Nanoparticles Using Pumpkin Peel Extract (Cucurbita moschata) and its Applications as Semiconductor in Dye Sensitized Solar Cell (DSSC)

Cited by 4 publications

References 13 publications

Antimicrobial Nanocomposites from Chitosan and Squash Synthesized Nano‐Selenium Eradicate Skin Pathogens

Antimicrobial Nanocomposites from Chitosan and Squash Synthesized Nano‐Selenium Eradicate Skin Pathogens

Synthesis of ZnO-TiO2 Nanoparticles by Sol-Gel Process and its Application for Solar Cell Semiconductor

Dye-Sensitized Solar Cells Characterization of Kitolod Leaves (Hippobroma longifora)

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