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All Journal Eksergi: Chemical Engineering Journal Jurnal Zarah SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan CHEESA: Chemical Engineering Research Articles Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia WIDYA LAKSANA Bubungan Tinggi: Jurnal Pengabdian Masyarakat Hydrogen: Jurnal Kependidikan Kimia CHEDS: Journal of Chemistry, Education, and Science Abdimas Awang Long: Jurnal Pengabdian dan Pemberdayaan Masyarakat Jurnal Pijar MIPA Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA) International Journal of Multidisciplinary Sciences and Arts UNESA Journal of Chemical Education SOROT: Jurnal Pengabdian Kepada Masyarakat Jurnal Abdimas Indonesia Ardhi: Jurnal Pengabdian dalam Negri Buletin Pemberdayaan dan Pengembangan Masyarakat Agroindustrial Technology Journal (ATJ)
Trisnawati, Ade
UNIVERSITAS PGRI MADIUN
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Pengaruh Konsentrasi Ekstrak Etanol dari Daun Sembukan (Paederia foetida L) Sebagai Inhibitor Korosi Logam Besi padaLarutan HCl 1M dan Air Laut Novitaningrum, Elis; Setiawan, Mohammad Arfi; Trisnawati, Ade
Eksergi Vol 20 No 3 (2023)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v20i3.10163

Abstract

The massive development of industry creates human using various of metal which available in the nature for being contruction, for example a Iron metal. The iron is a transition metal on periodic table which often used on industry and building construction, however iron is a corrodiable metal. The metal  corrotion must be solved cause create many of loss.  Therefore, the study aimed to examine sembukan leaf extract in various consentration, 0%, 2%, 4%, 6%, 8% to seawater and HCl 1M during 7 days of contact moment. The correlation strenght between variable using regression linier method. Based on study that  the higher consentration inhibitor and the corrotion rate decreases. He highest efficiency using seawater is 89,9% and using HCl 1 is 68,9%. The highest correlation between variable is 93,2% using seawater. Th e conclution  is sembukan leaf extract effective  to protect iron corrotion of seawater
Characterization of Activated Carbon from Mangosteen Peel (Garcinia Mangostana L.) Activated with Phosphoric Acid (H3PO4) Indrastika, Erwin Riski; Hidayati, Nasrul Rofiah; Trisnawati, Ade
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 1 (2025): February 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i1.14557

Abstract

Mangosteen peel (Garcinia Mangostana L.) represents a waste that has yet to find widespread application. One effort to increase the economic value of mangosteen rind is by processing mangosteen rind into active carbon, which can be used in various industrial processes. This research will examine the manufacture of activated carbon using mangosteen peel as raw material, which is washed clean, cut, and dried, then carbonized using a furnace at a temperature of 250 0C for 1 hour. Activating activated carbon from mangosteen peel is carried out by immersion in a 5 M concentration of phosphoric acid (H₃PO₄). Next, the characteristics of activated carbon from mangosteen peel are examined, including water content, ash content, volatile matter content, and pure carbon content. The study shows that activated carbon meets the SNI-06-3730-1995 standards for its water content (2.76%), ash content (7.24%), volatile matter content (6.02%), and pure carbon content (83.98%).
Enhancing Students' Chemical Literacy with Environmental Problem-Based Learning Models through Lesson Study Practices Trisnawati, Ade; Permatasari, Adina Amelia
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 2 (2025): April 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i2.15246

Abstract

The purpose of this study was to determine the increase in students’ chemical literacy skills after being taught an environmental problem-based learning model through lesson study practices using quantitative descriptive analysis methods. This research flow uses the Lesson Study cycle stages consisting of Plan, Do, See, and Redesign. The subjects of this study were 17 first semester students of the Chemical Engineering and Physics Education Study Program at PGRI Madiun University who took basic chemistry courses. The data collected in this study were in the form of observation data and tests that measured students’ chemical literacy skills. The results showed that students’ chemical literacy skills were at a moderate level. In the Knowledge of Science and Chemical Content and Chemistry in Context aspects, the number of students who understood the concept increased, and the number of students who had misconceptions and did not understand the idea decreased. In the HOLS aspect, the most significant number of student answers were at the FSL level in terms of explaining the types of chemical bonds and depicting Lewis structures and in the explanation related to the possibility of compounds formed and the formation process of certain elements, the most significant number of student answers were at the NSL level. In the aspect of attitude, the learning outcomes show that most students’ answers are at the NSL level. In this study, it can be seen that students' chemical literacy skills with problem-based learning have not been able to provide significant changes. Therefore, further steps are needed to improve the learning process that can support students’ chemical literacy skills.
Improving Bagasse Fly Ash Immobilized with Spirulina sp. as a Biosorbent for Fe3+ Elimination from Wastewater in Physical Chemistry Laboratories Sri Wahyuningsih; Dyan Hatining Ayu Sudarni; Ade Trisnawati; Rima Nurjanah
Agroindustrial Technology Journal Vol. 10 No. 1 (2026): Agroindustrial Technology Journal [ATJ]
Publisher : Universitas Darussalam Gontor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/atj.v10i1.22

Abstract

This work examined how to improve Bagasse Fly Ash (BFA) as an adsorbent by immobilizing it with Spirulina sp. biomass to remove Fe³⁺ ions from effluent from physical chemistry laboratories.  A common silica-rich agroindustrial by-product, BFA has a porous structure but little capacity for adsorption because there aren't many active functional groups.  On the other hand, although Spirulina sp. has a lot of amino, hydroxyl, carboxyl, phosphate, and sulfate groups that allow for strong interactions with metal ions, its low mechanical stability and challenging post-treatment separation limit its direct application.  Spirulina was immobilized in a sodium silicate matrix made from BFA using the sol-gel technique in order to get around these problems. This produced a composite that combined the chemical activity of the biomass with the structural benefits of BFA. FT-IR characterization revealed structural changes upon immobilization and verified the existence of functional groups in charge of metal binding.  UV-Vis spectrophotometry at 510 nm was used to perform adsorption tests at contact periods of 15–60 minutes.  In comparison to both Spirulina alone (44.920%) and unmodified BFA (37.038%), the immobilized BFA–Spirulina composite had the best Fe³⁺ removal effectiveness (51.571% at 60 minutes).  Synergistic interactions within the composite are responsible for this enhanced performance: Spirulina offers chemically active sites for complexation and electrostatic interactions with Fe³⁺, while BFA enhances physical adsorption and diffusion through its porous matrix. The outcomes  show that the BFA–Spirulina composite is an efficient, affordable, and eco-friendly biosorbent that may be used to remediate laboratory waste that contains iron.  By converting biological and agricultural wastes into valuable resources for environmental repair, this method also promotes waste valorization.
Pelatihan Penggunaan Aplikasi Kimia Chem Bio Draw dan Hyperchem Untuk Membangun Dasar Pemahaman Visual Struktur Senyawa Kimia Kepada Mahasiswa Universitas PGRI Madiun Ade Trisnawati; Dyan Hatining Ayu Sudarni; Ahmad Misfa Kurniawan; Mohammad Arfi Setiawan; Nabila Mutiara Sani
Abdimas Awang Long Vol. 9 No. 1 (2026): Januari, Abdimas Awang Long
Publisher : Sekolah Tinggi Ilmu Hukum Awang Long

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56301/awal.v9i1.1885

Abstract

Materi ikatan kimia merupakan salah satu materi yang penting untuk dipelajari oleh mahasiswa Teknik Kimia. Namun, mahasiswa seringkali menghadapi kesulitan dalam memahami struktur senyawa kimia. Hal ini disebabkan oleh keterbatasan dalam menggambar struktur dan reaksi kimia, serta memprediksi sifat dan reaktivitas molekul. Selain itu, kurangnya keterampilan berbasis teknologi dalam bidang ini juga menjadi masalah. Aplikasi kimia seperti Chem Bio Draw dan Hyperchem sangat penting untuk memvisualisasikan, memanipulasi, dan menganalisis struktur senyawa kimia dengan presisi tinggi, namun banyak mahasiswa belum familiar dengan penggunaannya. Pelatihan ini bertujuan untuk meningkatkan pemahaman visual mahasiswa terhadap struktur senyawa kimia dan membekali mereka dengan keterampilan menggunakan aplikasi Chem Bio Draw dan Hyperchem. Kegiatan pengabdian masyarakat ini melibatkan mahasiswa Teknik Kimia dan Pendidikan Fisika yang telah menempuh mata kuliah Kimia Dasar. Pelatihan ini mencakup lima tahapan utama yaitu identifikasi masalah melalui pre-test, pengumpulan data, pengumpulan bahan materi, pelaksanaan sosialisasi dan pelatihan, serta evaluasi dengan post-test dan monitoring. Hasil pre-test menunjukkan bahwa hanya 15,3% peserta yang memiliki pemahaman awal tentang aplikasi Chem Bio Draw dan Hyperchem. Setelah sosialisasi dan pelatihan, terjadi peningkatan signifikan pada hasil post-test, di mana 71% peserta menunjukkan pemahaman yang baik mengenai aplikasi dan cara penggunaannya untuk mengolah data serta membuat permodelan molekul. Peningkatan pemahaman sebesar 56,5% dari pre-test ke post-test ini mengindikasikan bahwa kegiatan pelatihan efektif dalam meningkatkan wawasan dan kemampuan mahasiswa dalam penggunaan aplikasi kimia tersebut. Secara keseluruhan, pelatihan ini dapat membantu mahasiswa mengatasi kesulitan dalam pemahaman struktur senyawa kimia dan meningkatkan keterampilan mereka dalam menggambar, memprediksi sifat molekul, serta memanfaatkan teknologi dalam kimia. Kegiatan ini dapat menjadi model dasar untuk kegiatan serupa di masa mendatang.
IMPROVING STUDENTS’ CHEMICAL LITERACY SKILLS THROUGH PROBLEM-BASED LEARNING MODELS ON STOICHIOMETRY TOPICS Ade Trisnawati; Adinda Amelia Permatasari; Meilisa Rusdiana Surya Efendi
UNESA Journal of Chemical Education Vol. 15 No. 1 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n1.p38-45

Abstract

The purpose of this study was to determine students’ chemical literacy skills after being taught stoichiometry using a problem-based learning model. The Research design is a pre-experimental design with a one-group pretest-posttest design. The sample in this study was 13 new students of Chemical Engineering at PGRI Madiun University in the 2025/2026 academic year. Data collection used a context-based chemical literacy test carried out before and after PBL learning. Based on the Research, the pretest results showed that 100% of students had low chemical literacy, while the posttest results showed that 74% had low chemical literacy and 16% had moderate chemical literacy. Then, the analysis of students' chemical literacy levels from their pretest answers showed the highest percentage at the Scientific Illiteracy Level (72%) and the posttest results showed the most significant percentage at the Functional Scientific Literacy Level (32%). The implementation of PBL to improve students’ chemical literacy skills should consider several factors, such as the lecturer’s support for learning, the selection of material topics, information on students’ misconceptions in stoichiometry, and alignment between the activity design and targeted literacy indicators.
PENGARUH JENIS DAN KOMPOSISI BINDER TERHADAP KUALITAS BIOBRIKET LIMBAH BAGLOG JAMUR TIRAM Nadia Fikri Anti; Fungki Ade Yusup; Nasrul Rofiah Hidayati; Ade Trisnawati
Jurnal Zarah Vol. 10 No. 1 (2022): April, 2022
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.v10i1.4325

Abstract

Berkurangnya ketersediaan bahan bakar minyak yang disertai dengan angka kenaikan konsumsi di lndonesia diperlukan adanya pembaharuan energi alternatif yang ramah lingkungan, salah satunya limbah biomassa. Penelitian ini bertujuan untuk mengetahui pengaruh jenis dan komposisi binder terhadap kualitas biobriket limbah baglog jamur tiram untuk memenuhi standar yang dapat digunakan sebagai bahan bakar. Metode penelitian ini menggunakan uji eksperimen dengan parameter nilai kalor serta pengolahan data menggunakan teknik analisis deskriptif dan analisis statistik. Jenis binder yang digunakan adalah tapioka dan molase dengan komposisi masing-masing binder sebesar 15%, 25%, 35%. Hasil penelitian menunjukkan bahwa: (1) Kadar air paling rendah terdapat pada biobriket yang menggunakan jenis binder dari tepung tapioka dengan komposisi 15% yaitu sebesar 4,220%, (2) Biobriket dengan nilai.kalor tertinggi adalah biobriket yang menggunakan jenis binder dari tapioka dengan komposisi 15% yaitu sebesar 3.183 kal/g, (3) ada pengaruh signifikan antara jenis dan komposisi binder terhadap nilai kalor biobriket limbah baglog jamur tiram. Hasil pengujian parameter kadar air pada biobriket ini telah memenuhi standar mutu briket, sedangkan parameter nilai kalor belum memenuhi standar mutu briket.
Edukasi dan Penerapan Pengolahan Sampah sebagai Upaya Mendukung Sustainable Development Goals di TPQ Al-Fattah Trisnawati, Ade; Sussolaikah, Kelik; Faa'iqah, Aaisyah Rahmadani; Widiasih, Desy Diah
ARDHI : Jurnal Pengabdian Dalam Negri Vol. 4 No. 4 (2026): Agustus: ARDHI : Jurnal Pengabdian Dalam Negri
Publisher : Asosiasi Riset Pendidikan Agama dan Filsafat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ardhi.v4i4.2174

Abstract

Permasalahan pengelolaan sampah di lingkungan pendidikan nonformal tidak hanya disebabkan oleh kurangnya pengetahuan, tetapi juga rendahnya implementasi perilaku peserta didik. Kegiatan pengabdian ini bertujuan meningkatkan perilaku pengelolaan sampah di TPQ Al-Fattah Ponorogo melalui pendekatan Learning by Doing yang mengintegrasikan edukasi, praktik pembuatan ecobrick, penyediaan tempat sampah terpilah berbasis prinsip reuse, dan pendampingan. Metode yang digunakan adalah pendekatan partisipatif melalui observasi, edukasi interaktif, praktik, penyediaan sarana, pendampingan, dan evaluasi terhadap 16 peserta menggunakan observasi serta angket. Hasil menunjukkan program sangat efektif dengan tingkat efektivitas 93,16%. Aspek pengetahuan mencapai 91,67%, sikap peduli lingkungan dan niat berperilaku masing-masing 91,41%, sedangkan respons peserta sebesar 93,75%. Program ini tidak hanya meningkatkan pemahaman, tetapi juga membentuk kebiasaan awal memilah dan membuang sampah sesuai jenisnya. Pendekatan Learning by Doing efektif mendukung perubahan perilaku pengelolaan sampah sekaligus mendukung pencapaian Sustainable Development Goals (SDGs).
Analisis Kinerja Metode Kombinasi Elektrokoagulasi dan Adsorpsi dalam Penyisihan Total Suspended Solid (TSS) pada Air Lindi Rohmah, Alinda Nur; Trisnawati, Ade
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 5 No. 2 (2026): Agustus : JURRIMIPA: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v5i2.10111

Abstract

Air lindi dari TPA memiliki karakteristik pencemar yang kompleks sehingga diperlukan teknologi pengolahan yang efektif dan ramah lingkungan sebelum dibuang ke badan air. Salah satu parameter penting dalam pengolahan air lindi adalah Total Suspended Solid (TSS) karena keberadaan padatan tersuspensi dapat menurunkan kualitas lingkungan perairan. Penelitian ini bertujuan untuk menganalisis kinerja metode kombinasi elektrokoagulasi–adsorpsi menggunakan arang tempurung kelapa dalam penyisihan TSS pada air lindi salah satu TPA di Madiun serta mengevaluasi pengaruh variasi tegangan dan waktu proses terhadap efektivitas penyisihan. Metode penelitian dilakukan secara eksperimen menggunakan elektroda aluminium dengan variasi tegangan 3 V, 6 V, dan 9 V serta waktu proses 30 dan 60 menit. Proses elektrokoagulasi dilakukan terlebih dahulu, kemudian dilanjutkan dengan proses adsorpsi menggunakan arang tempurung kelapa tanpa aktivasi kimia. Hasil penelitian menunjukkan bahwa kombinasi elektrokoagulasi–adsorpsi mampu menurunkan kadar TSS pada seluruh kondisi perlakuan dengan efektivitas penyisihan sebesar 74–82%. Kondisi terbaik diperoleh pada tegangan 6 V dengan waktu proses 30 menit dengan efektivitas penyisihan sebesar 82%. Hasil penelitian menunjukkan bahwa kombinasi elektrokoagulasi dan adsorpsi menggunakan biomassa lokal berpotensi menjadi alternatif teknologi pengolahan air lindi yang sederhana, ekonomis, dan berkelanjutan.
Co-Authors Abda Abda Adinda Amelia Permatasari Adinda, Ayuni Agung Prasongko Ahmad Misfa Kurniawan anisa dwi lestari Ardiani Samti Nur Azizah Ayu W, Novia Fahmi Churnia Sari Dyah Setyaningrum, Dyah Dyan Hatining Ayu Sudarni Dyan Hatining Ayu Sudarni Effendi, Meilisa Rusdiana Surya Faa'iqah, Aaisyah Rahmadani Farida Isroani Febriyandhi Yahya Febriyandhi Yahya Febriyandhi Yahya Fungki Ade Yusup Fungky Ade Yusuf Indrastika, Erwin Riski Jesika Septia Ningsih Kelik Sussolaikah Mohammad Arfi Setiawan Nabila Mutiara Sani Nadia Fikri Anti Nasrul Rofiah Hidayati Nasrul rofiah hidayati Novitaningrum, Elis Nur Ihda Farikhatin Nisa Permatasari, Adina Amelia Restiawati, Mayang Rima Nurjanah Rima Nurjanah Rohmah, Alinda Nur Septiana Nurmala Dewi Sri Wahyuningsih Sri Wahyuningsih Sudarni, Dyan Hatining Ayu Sussolaikah, Kelik Widiasih, Desy Diah