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All Journal The Journal of Pure and Applied Chemistry Research Jurnal Kesehatan dan Pengelolaan Lingkungan
Safitri, Widya Nur
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Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences

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Antibacterial Potential of SrBi2Ta2O9 Synthesized via Molten Salt Method Izzah, Nuril Lailatul; Savira, Amalia; Ma’unatin, Anik; Safitri, Widya Nur; Hardian, Arie; Prasetyo, Anton
The Journal of Pure and Applied Chemistry Research Vol. 14 No. 1 (2025): Edition January-April 2025
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2024.014.01.3352

Abstract

One of the interesting properties of Aurivillius compounds is photocatalysts; therefore, they have the potential to be used as antibacterials. However, the study of the antibacterial properties of Aurivillius compounds is still very limited, therefore it’s important to conduct research on it’s properties. Our research aims to study the photocatalytic activity of SrBi2Ta2O9 compounds synthesized by molten salt method (using NaCl/KCl salt) as antibacterial. The diffractogram of the sample shows that the SrBi2Ta2O9 was successfully synthesized, but an impurity phase was formed as Bi2O3, Ta2O5, and SrBi2.83Ta5O15. The SEM images show that the morphological shape obtained is plate-like, which still has agglomeration with particle size distribution at range 20-80 μm. Plot tauc shows that the band gap energy of SrBi2Ta2O9 compounds is 2.8 and 3.06 eV, respectively. The antibacterial activity test results showed that the SrBi2Ta2O9 compound can inhibit staphylococcus bacterial growth under and without light radiation. It indicates that there are two possible mechanisms related to the inhibition of bacterial growth i.e: (a) photocatalysis, and (b) toxicity properties.
Efektivitas Penyuluhan dalam Meningkatkan Kesadaran Hipertensi di RW 01 Karangbendo Zada, Al’zena Naura; Safitri, Widya Nur; Febrianti, Reyhan Dwi; Fitriani, Wahidah; Wahyuningsih, Firly; Nadhifa, Naura Rahma; santri, ichtiarini nurullita; Syam, Nur Syarianingsih
Jurnal Kesehatan dan Pengelolaan Lingkungan Vol. 7 No. 1 (2026)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jkpl.v7i1.12803

Abstract

Hypertension is a chronic medical condition characterized by increased blood pressure in the arteries and is often underestimated by the public. Data show that 32% of residents in RW 01 Karangbendo have been diagnosed with hypertension. This study aims to evaluate the effectiveness of health education in increasing public knowledge about hypertension, including its prevention, impact, and classification. A quantitative method was employed using purposive sampling and a community diagnosis approach. The educational intervention involved 32 respondents and was conducted through lectures and the distribution of educational leaflets. Evaluation was carried out by comparing pretest and posttest results to measure participants' knowledge improvement. The findings indicate that health education significantly enhances public awareness of hypertension. These results highlight that health education through public outreach is an effective strategy for increasing awareness and contributing to hypertension prevention efforts.
Co-Authors Arie Hardian Febrianti, Reyhan Dwi Izzah, Nuril Lailatul Ma’unatin, Anik Nadhifa, Naura Rahma RR. Ella Evrita Hestiandari Santri, Ichtiarini Nurullita Savira, Amalia Wahidah Fitriani Wahyuningsih, Firly Zada, Al’zena Naura