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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Periodic Jurusan Kimia UNP Geoplanning : Journal of Geomatics and Planning Jurnal Riset Kimia JOIV : International Journal on Informatics Visualization Jurnal Penelitian Pendidikan IPA (JPPIPA) Orbital: Jurnal Pendidikan Kimia Indonesian Journal of Chemistry Jurnal Serambi Engineering JURNAL PENDIDIKAN TAMBUSAI Eksakta : Berkala Ilmiah Bidang MIPA Pelita Eksakta PAKAR Pendidikan Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Edukimia Entalpi Pendidikan Kimia Narra J BIOCHEPHY: Journal of Science Education Automotive Experiences Jurnal Pijar MIPA Journal of Community Service Makara Journal of Science Edu Research : Jurnal Penelitian Pendidikan MASALIQ: Jurnal Pendidikan dan Sains Entalpi Pendidikan Kimia Jurnal Kimia dan Rekayasa Ranah Research : Journal of Multidisciplinary Research and Development Chimica Didactica Acta : Journal of Chemistry and Chemistry Education Biosaintifika: Journal of Biology & Biology Education Jurnal Pendidikan MIPA Prosiding Seminar Nasional Ilmu Sosial dan Teknologi (SNISTEK) Jurnal Pendidikan Kimia, Fisika dan Biologi Genbinesia Journal of Biology
Rahadian Zainul
Department Of Chemistry, Faculty Of Mathematics And Natural Science (FMIPA), Universitas Negeri Padang, Padang, Indonesia
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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Journal : MASALIQ: Jurnal Pendidikan dan Sains

 1 
Fotokatalis Titanium Oksida (TiO2) Doping Tembaga (Cu) Menggunakan Metode Sol Gel untuk Fototransformasi Zat Warna Methylene Blue Anjali, Ghoury Kharisma; Zainul, Rahadian
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2475

Abstract

Methylene blue is a heterocyclic synthetic dye used in the textile industry, but it has a negative impact on water quality and the surrounding environment. This research aims to degrade Methylene blue using a photocatalytic method. The catalyst used for degradation is TiO2 doped with 10% Cu. In this research, the degradation process uses 25 watt Uv light using a reactor. The degradation process was carried out by varying stirring at a speed of 1500 rpm and without stirring at 30, 60, 90 and 120 minutes. The degradation results were measured using a UV-Vis spectrophotometer to see the absorbance before and after degradation, and FTIR to see the shift in compound bonds. The results of this research showed that degradation using stirring had a higher percentage of degradation than without stirring. The maximum degradation percentage obtained in the research was 92.31% with a stirring speed of 1500 rpm for 120 minutes of exposure.
Penentuan Kadar Logam Fe pada Air Sumur di Kota Padang dengan Metode Spektrometri Serapan Atom (SSA) Putri, Intan Anika; Zainul, Rahadian
MASALIQ Vol 5 No 6 (2025): NOVEMBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i6.7741

Abstract

Well water is a primary water source for communities and is vulnerable to contamination by heavy metals, particularly iron (Fe), which, at high concentrations, can cause organoleptic issues such as unpleasant odor, taste, and color, as well as pose health risks. According to Indonesian Ministry of Health Regulation No. 32 of 2017, the maximum allowable Fe content in water is 1 mg/L. This study aims to determine the concentration of Fe in well water samples from Padang City and evaluate the analytical data quality using Atomic Absorption Spectrometry (AAS). Water samples were collected and preserved with HNO₃ to maintain pH < 2, then analyzed using AAS at a wavelength of 248.3 nm. Method performance evaluation showed reliable analytical quality, with a calibration curve coefficient of determination (R²) of 0.9958, indicating excellent linearity. Accuracy validation through spike tests yielded recovery values within the acceptable range (85%–115%). However, the Relative Percent Difference (RPD) of duplicate samples indicated relatively high variability in precision (14.667%–26.415%), suggesting a need for optimization in the sample preparation stage. Despite this, precision in spike quality control showed excellent results, with an RPD of 0.221%. Quantitative analysis showed that all well water samples had Fe concentrations below the instrument detection limit, indicating compliance with water quality standards and general safety for sanitation and hygiene purposes.
Co-Authors -, Bahrizal Adi Sofyan Ansori, Muhammad Admin Alif Afria Yolanda Agil Aditya Dinata Agustina, Niken Ahmad Fauzi Ahmed, Shafique Aini, Syamsi Alfian, Fariz R. Ali Amran Alif, Admin Alifiansyah, Mochamad Radika Tory Alifiansyah, Mochamad RT. Alizar Alyaa Farrah Dibha Amalia Putri Lubis Amaq Fadholly Ananda Putra Andini, Namira Tri Andre Juliano, Muhammad Andrean, Maifil Dwi Andromeda Andromeda Andromeda Anggraini, Dhea Anggriani Sirait, Nova Anjali, Ghoury Kharisma Anni Faridah Ansori, Arif NM. Antonius, Yulanda Ardi, Ahmad Maulana Arif Nur Muhammad Ansori Ariusni Ariusni Ariusni Elida Arli Aditya Parikesit Artha, Dwirani Puspa Asnil Asnil Asral, Suci Sukma Taruna Atmaja, Peter Y. Aulia, Halimatus S. B, Syamsul Amar Baharudin, Muhammad Daswar A. Bahrizal - Bambang Sudarmanta Bonkalo, Tatyana Budhi Oktavia Burkov, Pavel Butarbutar, Suryani Cika Dania Marca Deandra Savira Derkho, Marina Deski Beri Desy Kurniawati Devi Purnamasari Dhea Kharisma, Viol Dian, Farida Aryani Dinda Sahara Dings, Tim Godefridus Antonius Dori Yuvenda Durain Parmanoan Durry, Fara D. Dwi Finna Syolendra Edi Nasra Efran Ustia Rahmad Elfianah, Verah elida elida Elkhool, Tarek A. Ellizar ellizar Elvina Elvina Erdiwansyah Erdiwansyah Erwandri, Rianovriani Ethica, Stalis N. Ezi Anggraini Fadila Gusman Fajriah Azra Fauzan Yan Hawari Feriani, Feby Festiyed Fetty, Amelia JT. Fetty, Amelia Julia Tria Firmansyah Khairul Kamal Firmansyah, Muhammad Reffi Fitrah Mey Harmi Siregar Fitri, Ernarisa Fredy Kurniawan Goh, Khang Wen Guntur Bagus Pamungkas Hardeli Hardeli Hardeli Hary Sanjaya Hayaza, Suhaila Herdiansyah, Mochammad A. Herdiansyah, Mochammad Aqilah Hermansyah Aziz Hery Purnobasuki Hidayati, Shil ike sabaria Illyas Md. Isa Indah Permata Sari Indah Permata Sari Indang Dewata Irda Yunita Isa, Illyas Md Istiqamah, Siti Sarah Jakhmola, Vikash Jakmola, Vikash Jamaluddin, Indra P. Jamaludin Jamaludin Kadek Rachmawati Karlinda Karlinda Karlinda Karlinda Khairun Nisa Khairunnisa Khairunnisa Khalid, Ahmad Khudzairi Kharisma, Viol D. Kharisma, Viol Dhea Kolesnik, Evgeniy Kovalchuk, Dmitriy F. Krismadinata Krismadinata Lubis, Amalia Putri Lufri Lufri Ma'firah, Marla Maahury, Mirella Fonda Maksim Rebezov Maksimiuk, Nikolai Maria Kiseleva Marla Ma&#039;firah Muhammad Andre Juliano Muhammad Haris Effendi Hasibuan Muhammad Hermawan Widyananda Muhammad Nizar Muhammad Rizki Muhammad Rusdi Muhardi, - Muji Setiyo Mulia, Melindra Murtadlo, Ahmad AA. Murtadlo, Ahmad Affan Ali Musa, Susan H. Nadezhda Kenijz Nafika Nurullita Naw, Sin W. Nizar, Umar Kalmar Novela, Riana Novera Elsi Mudia Oki Muraza Oktarina, Cindy Parikesit, Arli A. Pera Meilita Pernadi, Niza Lian Pratiwi, Intan A. Priyono, Qiara Amelia Putri Putra, Abrar Suryadi Putra, Ananda Putra, Justitia ERP. Putra, Randi Purnama Putri Fatimah Putri, Intan Anika Qonitah Fardiyah Radeni Sukma Indra Dewi Rahma yulis lubis Rahma Zila Rahmatika Putri, Sinta Rahmi, Maulidia Arsyta Ramli Ramli Rasyadan Taufiq Probojati Ratna Sari Raudhatul Hanifa Rayandra Asyhar Rebezov, Maksim Regina Tutik Padmaningrum Remon Lapisa Revi Gina Gunawan Riga Rijas, Livia Putrima Riko Romas Prayuda Rilla Gina Gunawan Risky Setiawan Risty, Chika Mei Rizaldy, Rafli Rohadatul Nadya Maurani Roza Herlina Saklani, Taru Salsabila Tri Rahmi Sari Mustika Sari, Putri Manda Sari, Yollit Permata Scherbakov, Pavel Sepiashvili, Ekaterina Seprianto Setianingsih, Primanita NM. Shmeleva, Svetlana Siltiwi Mandar Sinta Rahmatika Sinta Rahmatika Putri Skunda Diliarosta Sofia Sri Rizki Putri Primandari Sri Ulfa Sentosa Sri Wahyu Wardani Sri Wahyuningsih Sri Whayu Wardani Suci Sukma Taruna Asral Sukma Sahadewa, Sukma Sunarto Sunarto Sunarto Sunarto Susilo, Raden JK. Suyanta Suyanta Svetlana Artyukhova Syaifuddin Yana Syamsi Aini Syifa Rahma Ayunda Syukri Syukri Arief Syukri Syukri Tacharina, Martia Rani Tafonao, Leni Anggraeni Tamara, Anindya Putri Teguh Hari Sucipto, Teguh Hari Tri Haryati Trihanto Setiadi Trisna Kumala Sari Turista, Dora Dayu Rahma Ullah, Md. Emdad Umar Kalmar Nizar Urmatul Uska Akbar Veneliza, Adila Vika Erlina Vikash Jakhmola Viol Dhea Kharisma Visca Alisia Arianti Visca Alisia Arianti Yanni, Fitri Yeni, Isra Yohandri Yosephi, Valensa Yulia Matrosova Yulia Mona Liza Yuni Aulia Putri Djasli Yusniasari, Putri Antika Yusrianti, Ike