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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Jurnal Pengabdian Masyarakat Pinang Masak Jurnal Kimia Unand
Melvi Muharmi
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Religion Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Nursing Physics Public Health Social Sciences

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Sintesis Lapis Tipis SrTiO3 dengan Metode Solvotermal Melvi Muharmi; Yulia Eka Putri; Diana Vanda Wellia
Jurnal Kimia Unand Vol. 11 No. 2 (2022): November 2022
Publisher : Departemen Kimia Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jku.11.2.31-35.2022

Abstract

SrTiO3 thin layer were synthesized through solvothermal method by using FTO (fluorine-doped tin oxide) glass as a conductive substrate. The raw materials strontium nitrate (Sr(NO3)2) and titanium tetra isopropoxide (TTIP) were dissolved in ethanol solvent. Sample purity, elemental compositions and surface morphology were characterized using x-ray diffraction (XRD), energy dispersive x-ray (EDX) and scanning electron microscopy (SEM). XRD analysis showed that the synthesized SrTiO3 thin layer at 200oC for 24 hours with the addition of CTAB and TBA had intensity peaks that mathced the SrTiO3 standard (ICSD #94573) with perovskite structure. This result was supported by the XRD pattern of the sample powder. The EDX spectrum showed that titanium and oxygen were in the sample, but the presence of strontium was not found, due to its weak intensity. Based on the SEM image, the morphology seen is distributed equally and the grain size is rather smaller in the sample with the addition of CTAB and TBA.
Pengaruh Hemodialisa Terhadap Nilai Hemoglobin dan Kreatinin Pada Pasien Penyakit Ginjal Kronik Di Unit Hemodialisa RSUD Undata Jaya, Nur; Tanjung, Revi Maylina; Khoiriyah, Rani; Muharni, Melvi; Setyawan, Teguh; Permatasari, Defia Indah; Rizal B, Muh.; Adam, Meyzaluna Salsabila
Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Vol. 5 No. 6 (2025): November 2025 - Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/altifani.v5i6.962

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh hemodialisa terhadap kadar hemoglobin dan kreatinin pada pasien gagal ginjal kronik di Unit Hemodialisa RSUD Undata. Penelitian ini menggunakan metode kuantitatif dengan desain pre-eksperimental jenis one group pretest-posttest. Sampel sebanyak 88 pasien diambil menggunakan teknik purposive sampling. Data kadar hemoglobin dan kreatinin sebelum dan sesudah hemodialisa dianalisis menggunakan uji Paired Sample T-Test. Hasil penelitian menunjukkan bahwa kadar kreatinin sebelum hemodialisa sebesar 11,464 gr% menurun menjadi 9,211 gr% setelah hemodialisa dengan nilai signifikansi p = 0,00017 (p < 0,05). Sementara itu, kadar hemoglobin meningkat dari 9,440 gr% menjadi 9,939 gr% setelah hemodialisa, dengan nilai p = 0,00053 (p < 0,05). Hasil ini menunjukkan bahwa terdapat perbedaan yang signifikan sebelum dan sesudah hemodialisa. Dapat disimpulkan bahwa hemodialisa memberikan pengaruh yang signifikan terhadap penurunan kadar kreatinin dan peningkatan kadar hemoglobin pada pasien gagal ginjal kronik. Diperlukan pemantauan berkelanjutan terhadap parameter darah lainnya selama terapi hemodialisa untuk mendukung keberhasilan terapi.
Sosialisasi Bahaya Lingkungan Dan Kesehatan Akibat Penggunaan Plastik Bagi Ibu Rumah Tangga Tanjung, Revi Maylina; Muharmi, Melvi; Teguh Setyawan; Khoiriyah, Rani; Widya Twiny Rizki; Defia Indah Permatasari; Nur Jaya; Fiqri Al Faruqi; M. Ardi Daya; Elika Fitriani
Jurnal Pengabdian Masyarakat Pinang Masak Vol. 6 No. 2 (2025): Vol 6 No 2 (2025) Desember 2025
Publisher : Fakultas Sains dan Teknologi, Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jpm.v6i2.48991

Abstract

Plastic is a synthetic polymer material that can be shaped and used in various functions, especially in household products, ranging from plates, glasses, spoons, cooking utensils to food storage containers. According to research, the use of plastic that does not meet the requirements can cause serious health problems such as cancer. Plastic waste is also difficult to decompose or degrade and takes up to hundreds of years to be completely decomposed by soil microorganisms. The purpose of this community service is to provide education to housewives about plastic and the dangers of plastic use for health and the environment. This service was carried out on August 30, 2025 in RT 04 RW 01 Mendalo Indah Village, Jambi Luar Kota District, Muaro Jambi Regency, Jambi Province. The implementation of the socialization was carried out in several stages, namely: 1) Preparation Stage including a pretest to determine the initial level of understanding of participants 2) Implementation Stage including the presentation of materials and distributing brochures to participants 3) Mentoring Stage where participants were given various other alternatives to avoid the use of plastic in everyday life and 4) Success Stage The activity was carried out by analyzing the data processing of the number of answers of each participant to each instrument 'Use of Plastic Packaging Products in Everyday Life'. The aspects of assessing the success of the activity consisted of high, medium and low. The instrument for the level of success of the activity was made with the answer 'yes' or 'no. And after the mentoring process, data on respondents' understanding of the socialization activity was obtained with high success indicator results compared to before the socialization. In conclusion, socialization of the dangers of plastic use is a critical step in minimizing problems with health and environmental pollution. By increasing public awareness, it is hoped that there will be changes in behavior and real actions in reducing the use of single-use plastics and those that do not meet SNI standards.
Determination of Kinetic and Thermodynamic Parameters of Pb(II) Ion Adsorption Using Dithizone-Immobilized Coal Fly Ash Rizal B., Muh; Mudasir, Mudasir; Siswanta, Dwi; Muharmi, Melvi; Ardina, Vebria; Setyawan, Teguh; Jaya, Nur; Permatasari, Defia Indah; Tanjung, Revi Maylina
Jurnal Kimia Sains dan Aplikasi Vol 29, No 1 (2026): Volume 29 Issue 1 Year 2026
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.29.1.1-9

Abstract

The immobilization of dithizone on the surface of coal fly ash was successfully achieved, as evidenced by Fourier-transform infrared (FT-IR) and X-ray diffraction (XRD) characterization. The dithizone-immobilized coal fly ash (CFA-Dzt) was then used for Pb(II) ion adsorption. The parameters studied included the effects of pH, kinetics, and thermodynamics on Pb(II) ion adsorption using a batch experimental system. The results showed that the optimum pH for Pb(II) adsorption using CFA-Dzt was 5. The adsorption kinetics of Pb(II) ions followed the pseudo-second-order kinetic model, with an adsorption activation energy of 27.280 kJ mol−1. The Langmuir isotherm model best described the adsorption behavior, with a maximum adsorption capacity of 34.13 mg g−1. Thermodynamic analysis revealed Gibbs free energy changes (ΔG°) of 24.630, 25.850, 26.810, and 28.550 kJ mol−1 at 293, 303, 313, and 323 K, respectively. The enthalpy change (ΔH°) of the adsorption at this temperature range was +12.770 kJ mol−1, indicating that Pb(II) ion adsorption on the adsorbent is an endothermic process, and its entropy change (ΔS°) was +127.290 J mol−1, suggesting that the adsorption of Pb(II) ion on CFA-Dzt is dominantly driven by the entropic factor.
Co-Authors Adam, Meyzaluna Salsabila Ardina, Vebria Defia Indah Permatasari Dwi Siswanta Elika Fitriani Fiqri Al Faruqi JAYA, NUR Khoiriyah, Rani M. Ardi Daya Mudasir Mudasir Nur Jaya Rizal B, Muh. Rizal B., Muh Setyawan, Teguh Tanjung, Revi Maylina Wellia, Diana Vanda Widya Twiny Rizki Yulia Eka Putri