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SYNTHESIS AND CHARACTERIZATION OF NiO-TiO2/GRAPHENE AS A CANDIDATE ANODE FOR LITHIUM-ION BATTERY DEVELOPMENT Muh Edihar; Kaharuddin Kaharuddin; Irwan Irwan; Muhammad Nurdin; Maulidiyah Maulidiyah; Shohibul Faqih; Mawaddah Zaqinah Diah; Thamrin Azis
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 11, No 1 (2025)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v11i1.18363

Abstract

This study synthesizes and characterizes NiO–TiO₂/graphene nanocomposites as anode materials to enhance the performance of lithium-ion batteries (LIBs). The composite was prepared using NiO precipitation, TiO2 annealing, and hydrothermal methods. FTIR analysis identified -OH stretching vibrations at 3313.63 cm-1 and Ni-O/Ti-O bonds at 624 cm-1, confirming metal oxide formation. XRD revealed anatase TiO2 phases at 2θ = 25° and 48° with (101) and (200) planes, rutile phases at 2θ = 27°, 36°, and 54° with (110), (101), and (211) planes, and peaks for graphene (2θ = 43°) and NiO (2θ = 62° and 70°). SEM-EDX showed uniform nanoparticle morphology with Ti, O, Ni, and C elements. Cyclic voltammetry indicated a 5% capacity increase per cycle over five cycles, with oxidation at 0.75 V and reduction at -0.75 V. The composite demonstrated excellent electrochemical stability and enhanced storage capacity, highlighting its potential as an anode material for LIBs.
Edukasi Peningkatan Pengetahuan Bahaya Merokok pada Siswa SMPN 21 Moramo Utara Harleli; Edihar , Muh.
Science and Technology: Jurnal Pengabdian Masyarakat Vol. 2 No. 2 (2025): Juni
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/scitec.v2i2.416

Abstract

Merokok menjadi masalah kesehatan masyarakat, yang berdampak negatif terhadap kesehatan, prestasi, dan masa depan. Merokok menyebabkan penyakit jantung  dan  gangguan  pembuluh  darah,  kanker  paru-paru. Kurangnya pengetahuan bahaya rokok akan berdampak pada perilaku merokok.  Penelitian ini bertujuan untuk meningkatkan pengetahuan bahaya rokok pada siswa SMPN 21 Moramo Utara.  Adapun jumlah sampel pada penelitian ini dari 30 siswa. Penelitian ini menggunakan metode ceramah. Sampel pada kegiatan ini ditentukan dengan metode purposive sampling. Berdasarkan Hasil kegiatan ini diperoleh nilai p=0,000 ≤ 0,05 yang berarti terdapat perbedaan yang signifikan pengetahuan siswa sebelum dan sesudah edukasi bahaya merokok pada siswa. Hal tersebut menunjukkan bahwa edukasi kesehatan dapat meningkatkan pengetahuan tentang bahaya rokok pada siswa SMPN 21Moramo Utara.
PENYULUHAN KESEHATAN PERILAKU HIDUP BERSIH DAN SEHAT MELALUI CUCI TANGAN MENGGUNAKAN SABUN Harleli, Harleli; Edihar, Muh.
Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS Vol. 3 No. 2 (2025): April
Publisher : CV. Alina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59407/jpki2.v3i2.2251

Abstract

Kesehatan dalam kehidupan manusia merupakan hal yang terpenting terutama bagi anak usia dini yang dapat dicapai dengan menerapkan perilaku hidup bersih dan sehat dengan cara menjaga kebersihan diri, dapat dilakukan dengan cara mencuci tangan menggunakan sabun. langkah awal untuk merubah sikap siswa agar menerapkan perilaku hidup bersih dan sehat sehingga mewujudkan sekolah yang sehat adalah di sekolah. Tujuan pengabdian ini untuk meningkatkan pengetahuan siswa tentang cara mencuci tangan menggunakan sabun dengan benar. Metode yang digunakan meliputi ceramah, tanya jawab dan pemberian leaflet tentang PHBS. Sebelum diberikan penyuluhan siswa diberikan pre-test kemudian dilakukan penyuluhan dan dilanjutkan post-test terhadap peserta, kemudian dilanjutkan praktek cuci tangan. Hasil kegiatan menunjukkan adanya perbedaan signifikan pengetahuan sebelum dan sesudah penyuluhan, dengan nilai p-value = 0,000 < α = 0,05, yang mengindikasikan bahwa penyuluhan PHBS berperan positif dapat meningkatkan pemahaman PHBS melalui cuci tangan menggunakan sabun pada siswa dengan benar. Kesimpulannya, pengetahuan PHBS efektif dalam meningkatkan kesadaran siswa mengenai pentingnya cuci tangan menggunakan sabun supaya terhindar dari penyakit infeksi
ADSORPSI KALSIUM AIR PAYAU SEBAGAI SUMBER AIR BERSIH BAGI MASYARAKAT PESISIR DENGAN SILIKA TERMODIFIKASI DARI ABU SEKAM PADI Kahar, Kaharuddin; Edihar, Muh; Harimu, La; Dahlan; Mutmainnah
Al-Kimia Vol 13 No 1 (2025): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Many Indonesian residents have difficulty obtaining clean water, especially people who live in coastal areas. Those who live there can only consume brackish water which is considered to have side effects on health due to the excessive calcium content. This research offers a simple method, namely adsorption using abundant raw materials, namely rice husk ash from agricultural waste resulting from burning rice husks. Using husks directly has less effectiveness, so it needs to go through additional processes such as removing impurities and modifying the structure. This research aims to reduce calcium levels in brackish water using silica that has been modified from rice husk ash. The process of making adsorbents is carried out by sieving, heating, filtering, washing to obtain silica, then modifying and optimizing important parameters until its application to brackish water. The difference between pre-modified and modified silica can be seen in the characterization with FTRI at wave numbers from 470 cm-1 to 430 cm-1 1, namely deeper bending vibrations, which are also clarified by the surface condition with more structured pores seen in the SEM results. The modified silica works optimally at a mass of 0.4 grams, pH 7.5, contact time of 40 minutes and concentration of 50 ppm. It has an adsorption capacity of 3.2 mg/g and follows the Langmuir isotherm pattern.
Synthesis and Characterization Materials Modern (CMC-Fe3O4-Chitosan-TiO2) As Portable Adsorbent Toxic Metal (Hg) and Dye Substance (Rh B) Kahar, Kaharuddin; Edihar, Muh; Suhardin
Advance Sustainable Science Engineering and Technology Vol. 6 No. 3 (2024): May - July
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v6i3.709

Abstract

The synthesis of the portable adsorbent material CMC-Fe3O4-Chitosan-TiO2 begins by inserting the CMC-Chitosan mixture into the leaching solution. Next, concentrated NaOH and 3% CaCl2 were added, then decanted and dried at room temperature. After that, the composite was coated with TiO2 and then dried in an oven at a temperature below 100 oC. The success of the synthesis was indicated by the presence of specific absorption in FT-IR. 3429 cm-1 hydroxyl group, 2926 cm-1 for the CH/CH3 group, 1631 cm-1 for the carbonyl group (C=O), 1642 cm-1 which is the CH/CH3 group, as well as ) and ( at 400-600 cm-1. In addition, the different surface morphology of the material formed from its basic components is based on SEM characterization sails. Adsorption test results for Hg (II) metal ions were 53% while dyes were 38% with a time of 40 minutes. This research is good for handling watermaster
Edukasi Kesehatan: Bahaya Fast Food pada Mahasiswa Menggunakan Media Sosial Harleli , Harleli; Edihar, Muh
Science and Technology: Jurnal Pengabdian Masyarakat Vol. 2 No. 4 (2025): Desember
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/scitec.v2i4.572

Abstract

Konsumsi fast food di kalangan mahasiswa meningkat seiring gaya hidup dan kemudahan akses makanan siap saji. Rendahnya pengetahuan mengenai dampak fast food berpotensi meningkatkan risiko penyakit tidak menular seperti obesitas, diabetes melitus, dan hipertensi. Kegiatan pengabdian ini bertujuan mengetahui perbedaan pengetahuan mahasiswa sebelum dan sesudah diberi edukasi bahaya konsumsi fast food melalui edukasi berbasis media sosial. Kegiatan dilakukan pada 30 mahasiswa prodi gizi FKM UHO dengan desain pre-test dan post-test. Media edukasi berupa poster tentang bahaya fast food, kandungan gizi, strategi mencegah komsumsi fast food. Poster dan video disebarkan melalui Instagram dan WhatsApp, dilanjutkan pertemuan edukasi daring melalui Google Meet. Hasil kegiatan menunjukkan terdapat perbedaan pengetahuan sebelum (20%) dan sesudah edukasi (80%), bahaya komsumsi fast food. edukasi berbasis media sosial terbukti efektif dan dapat dijadikan strategi promosi kesehatan yang relevan bagi mahasiswa.
Hierarchical NiO/TiO2-Biomass-Derived Porous Carbon Composite with Improved Electrochemical Kinetics for Energy Storage Applications Nurdin, Muhammad; Maulidiyah, Maulidiyah; Watoni, Abdul Haris; Zakir, Muhammad; Muliadi, Muliadi; Muzakkar, Muhammad Zakir; Azmi, Khusnul Ulul; Edihar, Muh; Zulfan, Ahmad
Journal of Multidisciplinary Applied Natural Science Articles in Press
Publisher : Pandawa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47352/jmans.2774-3047.371

Abstract

The development of high-performance and sustainable anode materials remains a crucial challenge for next-generation energy storage systems. In this study, NiO/TiO₂–biomass-derived porous carbon (BPC) composites were successfully synthesized using palm kernel shell-derived porous carbon as a conductive matrix. Structural and morphological characterizations confirmed the homogeneous distribution of NiO and TiO₂ crystals within the porous carbon framework. The FTIR and XRD analyses verified the presence of metal-oxygen bonds and high phase purity, while SEM revealed a well-developed porous structure. Electrochemical evaluations were performed in KOH solution using a three-electrode configuration. The optimized NiO-TiO2/BPC (1:2) electrode delivered a specific capacity of 7.76 mAh g⁻¹ at 10 mV s⁻¹ and sustained 3.59 mAh g⁻¹ at 80 mV s⁻¹, demonstrating favorable rate capability. Galvanostatic charge-discharge measurements further confirmed the improved performance, reaching 8.75 mAh g⁻¹ at 3 A g⁻¹. This enhanced electrochemical behavior is attributed to the synergistic integration of conductive porous carbon with electroactive NiO and TiO₂ phases. These findings indicate that the NiO-TiO₂/BPC composite functions as a hybrid alkaline electrode material and has potential for safe and sustainable aquatic energy storage devices.
Analisis Faktor Risiko Kejadian Anemia pada Remaja Putri di SMAN 1 Sampolawa Kecamatan Sampolawa Kabupaten Buton Harleli Harleli; Muh Edihar
SEHATMAS: Jurnal Ilmiah Kesehatan Masyarakat Vol. 5 No. 2 (2026): April 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/sehatmas.v5i2.7883

Abstract

Anemia is a nutritional problem among adolescent girls and remains a public health concern. This study aimed to analyze the risk factors for anemia among female students at SMAN 1 Sampolawa. This research employed a quantitative approach with a cross-sectional analytic design. The sample consisted of 78 female students selected using a stratified random sampling technique. The inclusion criteria were students in good health at the time of data collection, while the exclusion criteria were students who were menstruating during data collection. Data were collected through observation and interviews, and protein intake was assessed using a 24-hour food recall. Data analysis was performed using the Chi-Square test and multivariate analysis with a significance level of α = 0.05. The bivariate analysis showed no significant association between protein intake (p = 0.767) and nutritional status (p = 0.747) with the incidence of anemia. However, a significant association was found between menstrual cycle and anemia (p = 0.001). The multivariate analysis indicated that protein intake was not significantly associated with anemia (p = 0.767; OR = 0.80; 95% CI = 0.18–3.54), and nutritional status also showed no significant effect. In contrast, menstrual cycle was significantly associated with anemia (p = 0.001; OR = 49.00; 95% CI = 9.53–251.80), indicating that menstrual cycle is a strong risk factor for anemia among adolescent girls.
PHYTOCHEMICAL SCREENING AND DPPH ANTIOXIDANT ACTIVITY OF Cleome viscosa FRACTIONS, A TRADITIONAL MEDICINAL PLANT FROM SOUTHEAST SULAWESI Imran Imran; Nely Aryani Agusrini; Muh K. Natsir; Thamrin Azis; Alwahab Alwahab; Muh Edihar
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 12, No 1 (2026)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v12i1.22971

Abstract

Cleome viscosa is a traditional medicinal plant known to contain bioactive antioxidant compounds. Accordingly, this study aimed to conduct phytochemical screening and evaluate the antioxidant activity of its methanolic extract and solvent fractions using the DPPH radical scavenging method. Extraction was performed by maceration with methanol, followed by liquid–liquid partitioning with n-hexane and ethyl acetate. Following extraction, phytochemical analysis indicated the presence of alkaloids, flavonoids, saponins, tannins, steroids, and terpenoids in the methanolic extract. To assess antioxidant potential, antioxidant activity was determined based on percentage inhibition at 517 nm, and IC50 values were calculated by linear regression. The results showed that ascorbic acid had very strong activity (IC50 = 3.86 ppm). In comparison, the ethyl acetate fraction exhibited strong antioxidant activity (IC50 = 29.25 ppm), while the n-hexane fraction showed weak activity (IC50 = 88.77 ppm). These findings suggest that semi-polar compounds contribute significantly to antioxidant potential.
PHYTOCHEMICAL SCREENING AND DPPH ANTIOXIDANT ACTIVITY OF Cleome viscosa FRACTIONS, A TRADITIONAL MEDICINAL PLANT FROM SOUTHEAST SULAWESI Imran Imran; Nely Aryani Agusrini; Muh K. Natsir; Thamrin Azis; Alwahab Alwahab; Muh Edihar
AL-ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 12 No 1 (2026)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v12i1.22971

Abstract

Cleome viscosa is a traditional medicinal plant known to contain bioactive antioxidant compounds. Accordingly, this study aimed to conduct phytochemical screening and evaluate the antioxidant activity of its methanolic extract and solvent fractions using the DPPH radical scavenging method. Extraction was performed by maceration with methanol, followed by liquid–liquid partitioning with n-hexane and ethyl acetate. Following extraction, phytochemical analysis indicated the presence of alkaloids, flavonoids, saponins, tannins, steroids, and terpenoids in the methanolic extract. To assess antioxidant potential, antioxidant activity was determined based on percentage inhibition at 517 nm, and IC50 values were calculated by linear regression. The results showed that ascorbic acid had very strong activity (IC50 = 3.86 ppm). In comparison, the ethyl acetate fraction exhibited strong antioxidant activity (IC50 = 29.25 ppm), while the n-hexane fraction showed weak activity (IC50 = 88.77 ppm). These findings suggest that semi-polar compounds contribute significantly to antioxidant potential.