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All Journal Journals Mining Engineering : Bina Tambang Jurnal Periodic Jurusan Kimia UNP Sainstek Jurnal Riset Kimia SEMIRATA 2015 Indonesian Journal of Chemical Science Indonesian Journal of Chemistry JURNAL EKSAKTA PENDIDIKAN (JEP) JURNAL PENDIDIKAN TAMBUSAI Menara Ilmu Jurnal Farmamedika (Pharmamedica Journal) Pelita Eksakta Sainstek : Jurnal Sains dan Teknologi Molluca Journal of Chemistry Education (MJoCE) Hydrogen: Jurnal Kependidikan Kimia PRIMER (Prima Medical Journal) CHEDS: Journal of Chemistry, Education, and Science Jurnal Pijar MIPA MASALIQ: Jurnal Pendidikan dan Sains Menara Pengabdian Jurnal Pengabdian Pada Masyarakat Gudang Jurnal Multidisiplin Ilmu Jurnal Sains dan Kesehatan Jurnal Pendidikan Kimia, Fisika dan Biologi
Edi Nasra
Universitas Negeri Padang
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Model Isoterm Adsorpsi Methylene Blue pada Silika Xerogel Termodifikasi EDA/Cu Nabilla; Edi Nasra; Budhi Oktavia; Riga; M.Iqbal Saputra Gemasih
MASALIQ Vol 6 No 5 (2026): MASALIQ: Jurnal Pendidikan dan Sains
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i5.11538

Abstract

Methylene blue is a cationic dye that has the potential to contaminate aquatic environments and therefore requires an effective treatment method, one of which is adsorption. This study aimed to analyze the adsorption isotherm characteristics of methylene blue on EDA/Cu-modified silica xerogel and determine the most appropriate isotherm model. The study was conducted experimentally by varying the initial methylene blue concentration from 400 to 1,100 mg/L under optimum adsorption conditions. The adsorption equilibrium data were analyzed using the Langmuir and Freundlich isotherm models through a linear regression approach. The results showed that the Langmuir model exhibited a higher goodness of fit, with an R² value of 0.9967, than the Freundlich model, which obtained an R² value of 0.5763. Analysis using the Langmuir model yielded a maximum adsorption capacity (Qm) of 235.63 mg/g and a Langmuir constant (KL) of 0.201 L/mg, whereas the Freundlich model yielded a Kf constant of 109.3 and an n value of 6.44. These findings indicate that the adsorption of methylene blue on EDA/Cu-modified silica xerogel is better described by the Langmuir isotherm model, indicating the formation of a monolayer on the relatively homogeneous adsorbent surface. This study strengthens the understanding of the equilibrium adsorption mechanism of dyes on modified silica materials and demonstrates the potential of EDA/Cu-modified silica xerogel as an adsorbent for treating dye-containing wastewater.
Kajian Fitokimia Ekstrak Metanol Daun Belimbing Wuluh (Averrhoa bilimbi L.) Asal Kecamatan Koto Tangah Salsabilla Putri Serli; Riga Riga; Edi Nasra
MASALIQ Vol 4 No 5 (2024): MASALIQ: Jurnal Pendidikan dan Sains
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i5.3447

Abstract

Secondary metabolites are compounds synthesized by plants, microbes, or animals through biosynthesis that are used to support life. The content of secondary metabolites in plants is often used as traditional medicine. In this research, samples of wuluh starfruit leaves (Averrhoa blimbi L.) were used as traditional medicine to treat coughs, diabetes, and others. The purpose of this study is to determine the secondary metabolite content in wuluh starfruit leaves (A. Blimbi L.) in Koto Tengah district through maceration, phytochemical, and thin layer chromatography methods. This research was carried out through a sample preparation process, maceration using methanol as a solvent, phytochemical tests to test the content of alkaloids, flavonoids, saponins, and polyphenols/tannins by looking at the color change in the sample, and confirmation through thin layer chromatography by looking at the color and Rf value. The secondary metabolite test revealed that belimbing wuluh leaves were positive for tannins, flavonoids, alkaloids, and saponins.
Pemanfaatan Kulit Kakao sebagai Biosorben: A Review Fajrul Alif Arifin; Edi Nasra
MASALIQ Vol 6 No 5 (2026): MASALIQ: Jurnal Pendidikan dan Sains
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i5.11974

Abstract

Water pollution caused by heavy metals and dyes from industrial waste has received considerable research attention. However, studies specifically synthesizing the use of cocoa pod husk waste (Theobroma cacao L.) as a biosorbent for both pollutant groups remain limited. This study aimed to examine the potential and characteristics of cocoa pod husks as a biosorbent and to identify the conditions affecting the adsorption of heavy metals and dyes. This study employed a qualitative approach with a literature review design encompassing several scholarly articles on adsorption using cocoa pod husks. The findings showed that optimum adsorption conditions were generally achieved at near-neutral solution pH, adsorbate concentrations below 100 ppm, and contact times of less than 100 minutes. Dye adsorption tended to follow the Langmuir isotherm model, whereas heavy metal adsorption was better described by the Freundlich isotherm model. These findings indicate that cocoa pod husks have the potential to serve as a biosorbent in the treatment of water contaminated with heavy metals and dyes. Their adsorption efficiency is primarily affected by solution pH, contact time, and initial adsorbate concentration. This study contributes to the development of natural material-based biosorption technology while supporting the valorization of agricultural waste as a valuable material for wastewater treatment.
Co-Authors Adam, Wahyu Ade Elsa Betavia Adia Silvani, Mauline Afdila Nada Afriani, Reza Ahmad Raisan R.P Aini, Syamsi Ali Amran Ali Amran Alifea Arpy Alizar Alizar Alizar, Alizar Amrin . Amrin Amrin Amrin Amrin Ananda Putra Ananda Putra Andini, Namira Tri Anjelia, Mariza Annisa Haqqu Azhma Ulya Baehaqi Bahrizal Bahrizal Bahrizal Bahrizal Bahrizal Bahrizal Bahrizal Bahrizal Bastian, Vadianda Benti Etika, Sri Berlian, Syakhinah Berliana Salsabila Budhi Oktavia Burma, Resna Chairunnisa Chairunnisa Chindikia, Ilmy Cynthia Dela Gustika Della Rosalynna Stiadi Desi Kurniawati Deski Beri Deski Pahdinol DESY KURNIAWATI Desy Kurniawati Desy Kurniawati Desy Kurniawati Desy Kurniawati Desy Kurniawati Desy Kurniawaty Deva Indriyani Devi Lestari Dewi Kristina Dewi Meliati Agustini Dini Anggraini, Dini Dony Yulvi Dwi Hartati Dwi Rahma Doni, Deani Edwina Zainal Eka Yusmita Elvina Elvina Fadhilah Fadhilah Fadilla Yuri Merti Fahilatul Syukro Faiqa Haura Tsagifa Fajriah Azra Fajrul Alif Arifin Fatimah Jora Fatimah Mutiara R, Siti Fatmawati, Rani Fauzan Aulia Akbar Febbi Rahmayuni Febri Andini Putri Fitri Amelia Fitria, Fadhila Geita Yulyan Firel Haqqu, Annisa Hardeli Hardeli Hardeli Hardeli Hary Sanjaya Hary Sanjaya Hary Sanjaya Hayuni, Sri Heditama, Muhammad Raffi Hendrawansyah Putra Hesty Parbuntari Ikhsany, Diva Indang Dewata Isnaeni Isnaeni Jayawarsa, A.A. Ketut Juli Manda Sari Kalmar Nizar, Umar Kasuma Warda Ningsih, Sherly Khairiyah, Ghina Khalisa Khalisa Laura Dwi Rha Hayu Lismawati, Maya M Bachri Amran M. Iqbal S.G M.Iqbal Saputra Gemasih Malinda, Tasya Mauline Adia Silvani Mawardi Mawardi Melida Selvita Miftahul Khair Mila Lusy Tri Nandi Minda Azhar Miranda Dwi Putri Gultom Monika Yulia Mufi Nasda Muhamad Daviya Nur Fauzi Muhammad Farhan Muhammad Patly Muhammad Satrio Hutomo Mulia, Melindra Mutia, Nuraini Cut Nabilla Nandi, Mila Lusy Tri Nesya Febi Utami Nizar, Umar Kalmar Nofri Yuhelman Nur Hafni Hasibuan Nur Meisinca, Dzulhijjah Nuzulia Yona Oktavia Dewita, Febby Oktria, Wandi Patricia, Popi Pebriani Pebriani Pernadi, Niza Lian Pratama, Rafy Putra, Ananda Putri Fatimah Putri Nugraha Putri, Anisa Dwi Putri, Sinta Eka R, Yoanatul Hasanah Rahadian Zainul Rahayu, Yanna Rahmad, Nafisah Yulia Rahmatika, Aljumaatul Rahmi, Fathaniah Raviqa Ranti Septiana Ridho Hermawan Riga Riga Riga Riga Riga Riga, Riga Riska Himaylia Putri Riva Silvia Romy Dwipa Yamesa Away Roza Herlina Sabrina, Joya Saddam Husein, Saddam Salsabilla Putri Serli Sari, Trisna Kumala Satrio Prinandito Septian Budiman Sherly Kasuma Warda Ningsih Sherly Kasuma Warda Ningsih Sherly Kasuma Warda Ningsih Sintha Hafizhah Yonel Siti Fatimah Mutiara R Sri Benti Etika Sri Benti Etika Sukma Bening Fadli Suryani, Okta Sutan M Razali Syamsi Aini Syuhada Yurnas Taufik Hidayat Tessa Faradilla Trihanto Setiadi Trisna Kumala Sari Umar Kalmar Nizar Umar Kalmar Nizar Umar Kalmar Nizar Umar Kalmar Nizar Velly, Aglin Visca Alisia Arianti Wandi Oktria Widya Pasema Yeni, Isra Yeniwati Yeniwati Yollafebrisa Wizul Yollafebrisa Wizul Yulia Mona Liza Yusmaita, Eka Yusuf . Zonalia Fitriza Zul Afkar