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All Journal VALENSI JURNAL KIMIA SAINS DAN APLIKASI Jurnal Natur Indonesia Jurnal Riset Kimia Jurnal Litbang Industri Jurnal Zarah Chimica et Natura Acta Indonesian Journal of Chemistry Akta Kimia Indonesia Jurnal Ecolab Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks REACTOR : Journal of Research On Chemistry And Engineering IJCR (Indonesian Journal of Chemical Research) International Journal of Humanities Education and Social Sciences Jurnal Litbang Industri Journal Of Research and Education Chemistry (JREC) Jurnal Katalisator Vitalitas Medis : Jurnal Kesehatan Dan Kedokteran Inovasi Kesehatan Global Jurnal Kimia Unand
Zilfa Zilfa
Andalas University
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Pembuatan Teh Daun Kelor untuk Peningkatan Ekonomi Masyarakat di Kecamatan Ulakan Tapakis, Padang Pariaman Matlal Fajri Alif; Yulizar Yusuf; Emriadi Emriadi; Deswati Deswati; Mai Efdi; Novesar Jamarun; Syukri Arief; Adlis Santoni; Bustanul Arifin; Suryati Suryati; Yetria Rilda; Safni Safni; Zilfa Zilfa; Olly Norita Tetra
Warta Pengabdian Andalas Vol 31 No 4 (2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.31.4.682-688.2024

Abstract

The Moringa plant, a tropical species, exhibits prolific growth and is abundantly present in Indonesia and other tropical regions worldwide. An extended lifespan, continuous flowering, and a high tolerance for elevated temperatures characterize it. Utilizing its components, including leaves, bark, seeds, and roots, this multifaceted plant is renowned for its therapeutic properties. The plant's antioxidants and various nutrients, including vitamins and minerals (iron, magnesium, vitamin B6, vitamin B2, vitamin C, and vitamin A), have led to studies on the plant's potential health benefits. In order to develop the local economy in Ulakan village, Padang Pariaman Regency, Moringa plants were processed by using the plant leaves to manufacture herbal tea, which can then be sold. This community service program was significant given the widespread presence and ease of cultivation of Moringa plants within the local region. The program involved the planning and selection of the activity site, the implementation of training sessions, and the assessment of the program's outcomes. The result of this community engagement initiative was the demonstrated interest of many participants in producing Moringa leaf tea.
Pembuatan Teh Daun Kelor untuk Peningkatan Ekonomi Masyarakat di Kecamatan Ulakan Tapakis, Padang Pariaman Matlal Fajri Alif; Yulizar Yusuf; Emriadi Emriadi; Deswati Deswati; Mai Efdi; Novesar Jamarun; Syukri Arief; Adlis Santoni; Bustanul Arifin; Suryati Suryati; Yetria Rilda; Safni Safni; Zilfa Zilfa; Olly Norita Tetra
Warta Pengabdian Andalas Vol 31 No 4 (2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.31.4.682-688.2024

Abstract

The Moringa plant, a tropical species, exhibits prolific growth and is abundantly present in Indonesia and other tropical regions worldwide. An extended lifespan, continuous flowering, and a high tolerance for elevated temperatures characterize it. Utilizing its components, including leaves, bark, seeds, and roots, this multifaceted plant is renowned for its therapeutic properties. The plant's antioxidants and various nutrients, including vitamins and minerals (iron, magnesium, vitamin B6, vitamin B2, vitamin C, and vitamin A), have led to studies on the plant's potential health benefits. In order to develop the local economy in Ulakan village, Padang Pariaman Regency, Moringa plants were processed by using the plant leaves to manufacture herbal tea, which can then be sold. This community service program was significant given the widespread presence and ease of cultivation of Moringa plants within the local region. The program involved the planning and selection of the activity site, the implementation of training sessions, and the assessment of the program's outcomes. The result of this community engagement initiative was the demonstrated interest of many participants in producing Moringa leaf tea.
Degradation of Remazol Yellow FG by Sonolysis and Photolysis with TiO2/Active Carbon Rice Husk (TiO2/AC) Catalyst and Analysis Using Spectrophotometer UV-Vis Safni; Putri, Anggi Nabila; Deswati, Deswati; Zilfa, Zilfa
Jurnal Kimia Unand Vol. 13 No. 2 (2024): November 2024
Publisher : Departemen Kimia Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jku.13.2.34-40.2024

Abstract

Remazol Yellow FG is one of the dyes that are often used in the textile industry because it is accessible and reasonably priced. The non-biodegradable dyes produce waste and inhibit sunlight from passing through the water. In this study, we performed Fourier Transform Infrared (FTIR) to characterise the activated carbon of rice husk and TiO2/activated carbon rice husk (TiO2/AC) using Diffuse Reflectance Spectroscopy UV-Vis (DRS UV-Vis). Remazol Yellow FG was degraded by using sonolysis and photolysis under UV ray (λ = 254 and 365 nm) and visible ray. We performed the experiments using a variety of variables which consist of catalyst dosage (10–50 mg), contact time (1–6 hours), catalyst type (AC, TiO2 and TiO2/AC), lamp type (365 nm, 254 nm and visible lamp) and initial Remazol Yellow FG concentration (10–30 mg/L) to determine the degradation percentage. We found that the addition of TiO2/AC catalyst increased the degradation percentage of Remazol Yellow FG from 6,86% to 52,62% using sonolysis and 8,34% to 95,02% using photolysis. Hence, we concluded that TiO2/AC catalyst from rice husk could be an effective catalyst for the Remazol Yellow FG degradation.
Influence of Calsination Temperature on Zeolite Synthesis from Non-Hazardous Wastes and Its Application as an Adsorbent of Mn Metal Ion Septiani, Upita; Syukri; Mia Yeliandri; Safni; Zilfa
Jurnal Kimia Unand Vol. 14 No. 1 (2025): May 2025
Publisher : Departemen Kimia Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jku.14.1.29-35.2025

Abstract

In this research, zeolite material was synthesized by hydrothermal method using non- hazardou waste of fly ash as the raw material at low crystallization temperatures of 70oC with seawater as solvent. The effect of calsination temperature on synthesis of zeolite was studied, and the ability of synthesized zeolite to adsorb Mn metal ion in aqueous solution was also investigated. The synthesized zeolite was characterized by Fourier Transform Infra-Red (FT-IR), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM-EDS), and Surface Area Analyzer (SAA). Based on the results of XRD, the type of zeolites produced from the synthesized zeolite are zeolite X and sodalite. The synthesized zeolite was then tested for the adsorption of Mn metal ion, using atomic absorption spectrophotometer (AAS) and it was found that the zeolite material synthesized calcined 550oC had the highest adsorption capacity compared to other synthesized zeolite materials, where the maximum adsorption was 192,31 mg/g.
THE POTENTIAL OF PALM SHELL ACTIVATED CARBON AS AN ADSORBENT FOR HEAVY METALS IN THE RECYCLING PROCESS OF USED LUBRICATING OIL Zilfa, Zilfa; Safni; Amanda, Selya
INDONESIAN JOURNAL OF CHEMICAL RESEARCH Vol. 9 No. 1 (2024): Volume 9, ISSUE 1,2024
Publisher : Chemistry Department, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol9.iss1.art3

Abstract

With the increasing industrial and transportation activities, the demand for lubricating oil is increasing every year. Lubricating oil is used to reduce friction and wear on frictional engine components. Over time, lubricating oil becomes inefficient and needs to be replaced with new oil. To enhance the efficiency of petroleum use and reduce environmental pollution, used lubricants need to be recycled. One method of improving the quality of used lubricants is by absorbing heavy metal contaminants using activated carbon from palm kernel shells. The efficiency of activated carbon adsorption as an adsorbent for heavy metals in used lubricants was observed by varying the adsorption parameters of contact time, adsorbent mass, and sample volume. In this study, the absorption of several heavy metals, including iron (Fe), lead (Pb), and zinc (Zn), was investigated. Analysis of the absorption results was performed using AAS, FTIR, XRD, and XRF. The results showed that the absorption of metals in used lubricants using activated carbon from palm kernel shells with optimum parameters can absorb 90% of Fe, Pb, and Zn metals. The optimum contact time for each metal adsorption was 3 hours, with an adsorbent mass of 0.75 grams and a sample volume of 5 mL. Analysis of used lubricants before and after adsorption using FTIR indicated a shift in wave numbers, indicating an adsorption process.
Degradation of Pesticide Residues Cherizeb and Emacel in Chili Washing Water using ZnO/Zeolite Catalyst through Photolysis Zilfa; Safni; Benny Damas Putra
Vitalitas Medis : Jurnal Kesehatan dan Kedokteran Vol. 3 No. 2 (2026): April: Vitalitas Medis : Jurnal Kesehatan dan Kedokteran
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/vimed.v3i2.3014

Abstract

Chili (Capsicum annuum L) ) is one of the most important horticultural commodities widely consumed in Indonesia and has high economic value. To maintain productivity and prevent pest attacks, farmers commonly apply chemical pesticides intensively. However, excessive and improper pesticide application can leave harmful residues on the surface and within the tissues of chili fruits. The accumulation of these residues not only poses health risks to consumers but also contributes to environmental pollution, particularly in wastewater generated from chili washing activities. This study aims to reduce pesticide residues of Cherizeb and Emacel in chili washing water using the photolysis methodassisted by a ZnO/zeolite catalyst. Zinc oxide (ZnO) acts as a photocatalyst activated by ultraviolet (UV) light to produce reactive hydroxyl radicals (•OH) capable of decomposing complex organic compounds into simpler compounds such as CO₂ and H₂O. Meanwhile, zeolite is used as a catalyst support due to its large surface area and high adsorption capacity, allowing adsorption and photocatalytic processes to occur simultaneously. The results showed that the photolysis method using the ZnO/zeolite catalyst significantly reduced pesticide residues, with optimum degradation efficiencies of 85.66% for Cherizeb using 0.8 g ZnO/zeolite under UV irradiation for 60 minutes, and 83.97% for Emacel using 0.8 g ZnO/zeolite under UV irradiation for 75 minutes. The samples were characterized using Fourier Transform Infrared Spectroscopy (FTIR) to identify functional groups, indicating the disappearance of specific organic functional groups. Pesticide residues on chili samples were analyzed using UV-Vis spectrophotometry to determine concentrations before and after treatment. X-Ray Diffraction (XRD) analysis confirmed that the crystalline structure of the catalyst remained stable after the photolysis process. Based on these findings, the ZnO/zeolite catalyst is proven to be effective in reducing pesticide residues through photocatalytic degradation and has the potential to be applied as a safe, efficient, and environmentally friendly post-harvest technology to improve the quality of agricultural products.
Penentuan Kadar Residu Pestisida Klorpirifos dan Pengaruh Pencucian Pada Cabai, Buncis dan Sawi Putih Serta Nilai Risiko Kesehatan Pada Manusia Zilfa, Zilfa; Yusuf, Yulizar; Putri, Mitha Anggreini; Heysha, Fheiza
Jurnal Zarah Vol. 12 No. 1 (2024): April, 2024
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/haqs0z29

Abstract

Sayuran merupakan bahan pangan yang digemari masyarakat untuk dikonsumsi karena banyak mengandung nutrisi. Cabai (Capsicum annuum L.), buncis (Phaseolus vulgaris L), sawi putih (Brassica pekinensia L) termasuk  sayuran yang dapat diolah menjadi berbagai olahan sayuran yang lezat maupun dimakan sebagai lalapan. Untuk memperoleh tanaman sayuran yang subur diperlukan pestisida untuk membasmi hama yang dapat merusak sayuran. Salah satu pestisida yang banyak digunakan yaitu klorpirifos yang dapat meninggalkan residu sehingga menyebabkan risiko akut dan kronis pada kesehatan, oleh sebab itu perlu dilakukan analisis mengenai kadar residu pestisida klorpirifos pada sayuran. Kadar residu pestisida klorpirifos ditentukan menggunakan spektrofotometer UV-Vis dengan panjang gelombang 230 nm menggunakan pelarut diklorometana dan analisis kualitatif menggunakan HPLC dengan membandingkan waktu retensi larutan standar dan sampel sayuran. Pada penelitian ini dilakukan pencucian pada sayuran menggunakan diklorometana, akuades, air sumur dan air PDAM untuk melihat pengaruh pencucian terhadap kadar residu pestisida yang terkandung. Konsentrasi residu pestisida pada sayuran yang tidak dicuci yaitu cabai (2,6680±0,0214 mg/kg), buncis (2,4658±0,0193 mg/kg), dan sawi putih (2,7950±0,0379 mg/kg). Proses pencucian pada sayuran dilakukan tiga kali untuk masing-masing pelarut. Pencucian tiga kali menggunakan diklorometana dan akuades, didapatkan bahwa residu pestisida sudah tidak terdeteksi, sedangkan pencucian menggunakan air PDAM dan air sumur masih menyisakan residu pada sayuran tetapi kadarnya sangat kecil dibandingkan nilai Batas Maksimum Residu (BMR). Pada perhitungan nilai resiko kesehatan diperoleh nilai aHQ dan cHQ  <1  yang menunjukkan bahwa konsumsi batas yang dianjurkan dari sampel penelitian ini tidak menimbulkan risiko kesehatan baik jangka pendek maupun jangka panjang.. Penelitian ini memberikan informasi bahwa perlu pencucian berulang kali untuk menghilangkan kadar residu pestisida pada sayuran sebelum dikonsumsi.
Studi Eksperimental Pemanfaatan CuO/Zeolit Untuk Degradasi Air Gambut Menggunakan Metode Ozonolisis Dan Pengaruh Terhadap Kadar Besi Zilfa, Zilfa; Yusuf, Yulizar; Zakiyuda, Aufa
Jurnal Zarah Vol. 13 No. 1 (2025): April, 2025
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/zarah.v13i1.7181

Abstract

Peat water is surface water that is generally found in peatland areas and is mostly found in lowlands. Peat water has a low pH (3-5), is brownish-red in color, and contains many organic and inorganic substances. The more intense color of peat water indicates a higher content of chemical compounds. High levels of Fe metal in peat water can disrupt the peat swamp ecosystem itself, such as disrupting the activity of decomposer microorganisms, disrupting plant growth, and causing toxicity to humans and other living things if they consume it. This makes it not meet the requirements of household water and sanitation that is suitable for consumption. This study aims to determine the effect of the use of CuO/Zeolite catalysts on the degradation of peat water by ozonolysis method on Fe levels. After the degradation process at optimum conditions, the Fe level became 0.19 mg/L and was already at the safe limit of the quality standard used. Based on these data, the decrease in Fe metal concentration as well as BOD, COD, Nitrate, Nitrite, and TSS values in peat water by ozonolysis is more effective with the addition of CuO/Zeolite catalysts at optimum conditions.
Pengaruh Degradasi Pelumas Bekas Menggunakan Tio2/Zeolit Terhadap Kandungan Mg dan Na Secara Fotolisis Zilfa, Zilfa; Safni, Safni; Welly, Desra
Jurnal Zarah Vol. 13 No. 2 (2025): October, 2025
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/zarah.v13i2.7640

Abstract

Pelumas bekas merupakan salah satu limbah yang termasuk dalam limbah B3, pelumas bekas mengandung logam berat yang dapat mencemari lingkungan dan berbahaya bagi makhluk hidup. Pelumas bekas mengandung logam yaitu Pb, Zn, Ca, Ba, Na dan Mg yang dapat merusak mesin kendaraan. Penerapan metode fotolisis dengan menggunakan katalis TiO2/Zeolit dapat mendegradasi logam Mg dan Na pada pelumas bekas. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan katalis TiO2/Zeolit terhadap degradasi pelumas bekas dengan metode fotolisis. Analisis kandungan logam Mg dan Na pada pelumas bekas diukur dengan menggunakan alat Spektrofotometer Serapan Atom (AAS). Analisis pelumas bekas sebelum dan sesudah adsorpsi dengan Fourier Transform Infrared (FTIR). Karakterisasi TiO2/Zeolit sebelum dan sesudah degradasi menggunakan X-Ray Diffraction (XRD). Dari penelitian ini diperoleh kondisi optimum untuk degradasi logam Mg dan Na pada pelumas bekas, yaitu waktu degradasi optimum untuk logam Mg dan Na adalah 15 menit, jumlah katalis optimum untuk degradasi logam Mg dan Na adalah 0,4 gram, dan volume pelumas bekas yang optimum untuk degradasi logam Mg dan Na adalah 10 mL dengan besar persen degradasi 83,37% Mg dan 74,98% Na. Karakterisasi TiO2/Zeolit dengan menggunakan XRD menunjukkan tidak adanya perubahan struktur TiO2/Zeolit. Berdasarkan data tersebut dapat dikatakan bahwa katalis TiO2 yang didukung oleh zeolit dapat digunakan untuk mendegradasi logam Mg dan Na pada pelumas bekas. Karakterisasi pelumas bekas menggunakan FTIR menunjukkan adanya pergeseran bilangan gelombang sebelum dan sesudah degradasi yang mengindikasikan adanya proses degradasi.
Optimasi Pemanfaatan Katalis TiO2/Karbon Aktif (Sekam Padi) Untuk Degradasi Methyl Violet Secara Sonolisis dan Fotolisis Safni Safni; Tasya Aldini; Zilfa Zilfa; Deliza Deliza
REACTOR: Journal of Research on Chemistry and Engineering Vol. 5 No. 2 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i2.156

Abstract

The textile industry is a major contributor to pollution, with 10-15% of dyes lost in wastewater during processing, including Methyl Violet. The degradation products of these dyes are often carcinogenic. Conventional biological treatment methods are ineffective due to the complex nature of synthetic dyes. A study aimed to develop a new photocatalytic activity using a UV A lamp and sonolysis using a sonicator. The study modified TiO2/Activated Carbon from Rice Husk as a catalyst to degrade Methyl Violet and textile industry effluent effectively, which was dual benefits as an adsorbent-photocatalyst. Results showed that the degradation by sonolysis and photolysis was 12.99% and 79.16%, respectively. The degradation by photolysis was 14.95% and 94.12%. The light and catalyst with the highest percentage of degradation were TiO2/activated carbon with UV A light of 94.12%. This study aims to develop effective treatment techniques for the textile industry's dyes.
Co-Authors - Hariyanti - Zulfarman Adlis Santoni Admi Admi Afrizal Afrizal Aisyah Rahma Dwitami Aju Deska Aldini, Tasya Alsa Sepia Putri Amanda, Selya Annisaul Izzah Benny Damas Putra Bustanul Arifin BUSTANUL ARIFIN Deliza Deliza Deliza, Deliza Deswati Deswati Dwi Syukur Phameswari Elida Mardiah Emil Salim Emriadi - Febi Rahmi Fheiza Heysha Fiska Julian Tasari Fivi Mona Bareno Hamzar Suyani Hariyanti, - Hermansyah Aziz Hermansyah Aziz Hevira, Linda Heysha, Fheiza Ilahi, Fitratul Imelda Imelda Imran Nazar Linda Hevira Mai Efdi Mai Efdi Matlal Fajri Alif Megita Febiola Mia Yeliandri Mirawati Mirawati Mirawati Mirawati Mitha Anggreini Putri Muhammad Hafiz Reza Neneng Swesty Norman Ferdinal Novesar Jamarun Novesar Jamarun Nurhasni Nurhasni Nurul Afifah Nurul Annisyah Olly Norita Tetra Putri Julanda Ardica Putri Ramadhani Putri Ramadhani Putri Ramadhani, Putri Putri, Anggi Nabila Putri, Mitha Anggreini Rahmadhani Khairul Baryah Rahmayeni Rahmayeni Rahmi, Febi Rahmiana Zein Raihan Hanif Aulia Refilda Refilda Refinel - Ria Elvi Susanti Risa Oktaviani Safni Safni Safni Salim, Emil Salsa Nurul Fadhilah Siti Zahara Sumaryati Syukur Suryati Suryati Suryati Swesty, Neneng Syafrizayanti Syafrizayanti Syahril Syahril Syiffa Fauzia Syukri Syukri - Syukri Arief Syukri Arief Syukri Syukri Tasari, Fiska Julian Tasya Aldini Teti Nurhayatul Rahmi Tio Putra Wendari Tommi Hermansyah Upita Septiani Upita Septiani Vivi Sisca Vivi Sisca Wellia, Diana Vanda Welly, Desra Wilda Putri Suhada Yefrida - Yetria Rilda Yulizar Yusuf Yulizar Yusuf Yuza Ahmad Gumilang Zakiyuda, Aufa Zulfarman, - Zulkarnain Chaidir