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Synthesis of Chitosan Silica Membrane from Petung Bamboo (Dendrocalamus asper) Leaves and Its Application as Pb(II) Metallic Adsorbent Hasri, Hasri; Pratiwi, Diana Eka; Safitri, Isriyanti; Negara, Satria Putra Jaya
Indonesian Journal of Chemistry Vol 24, No 3 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.82065

Abstract

Membrane synthesis through a phase inversion method using chitosan and sodium silicate solutions has been conducted. This research aims to characterize the silica chitosan membrane (SCM) of petung bamboo leaves and determine the synthesized product's adsorption capacity for Pb(II) ions. The XRF characterization showed the silica content of petung bamboo leaves with a percentage of 78.03%. SEM analysis before adsorption is around 13.0 μm, and the pore diameter after adsorption is around 9.7 μm. The results of adsorption analysis of Pb(II) metal using AAS showed that the SCM variation A at an initial concentration of 10.0000 ppm Pb(II) metal adsorbed was 9.8101 ppm, and at an initial concentration of 25.0000 ppm Pb(II) metal was 22.3421 ppm. The variation B at an initial concentration of 10.0000 ppm Pb(II) metal adsorbed was 9.8870 ppm and at an initial concentration of 25.0000 ppm Pb(II) metal adsorbed was 23.5806 ppm. The variation C at an initial concentration of 10.0000 ppm Pb(II) metal adsorbed was 9.9639 ppm, and at an initial concentration of 25.0000 ppm Pb(II) metal was 24.1855 ppm. The results of this research conclude that the highest SCM adsorption power is variation C (2%:22.95%) with a percentage of 99.63%.
Analisis Literasi Sains pada Buku Teks Pelajaran Kimia Kelas X Kurikulum Merdeka Belajar Elim, Yohana; Salempa, Pince; Hasri, Hasri
Chemistry Education Review (CER) Volume 8 Nomor 1 September 2024
Publisher : Program Pasca Sarjana UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/cer.v8i2.62530

Abstract

This study is a qualitative descriptive study with the aim of knowing the scope of scientific literacy as knowledge, investigation of the nature of science, ways of thinking, and the interaction of Science Technology and society in chemistry textbook for year 10based on Merdeka Belajar Curriculum. The sample of this research is a science book of kurikulum merdeka which contains chemistry material from four different publishers. The scope of scientific literacy aspects of science as knowledge in chemistry textbooks foryear10 has a very high emergence of 63.35%. The scope of scientific literacy aspects of science as an investigation of the nature of Science in chemistry textbooks class X has the second highest occurrence of 27.57%.The scope of scientific literacy aspects of science as a way of thinking of chemistry textbooks for year 10 have the third largest occurrence of 6.37%. The scope of scientific literacy aspects of science as the interaction of Science Technology and society in chemistry textbooks for year 10 has the lowest occurrence of 2.71%.
Minat Belajar Peserta Didik Kelas XI KI 4 SMK SMTI Makassar pada Materi Reaksi Redoks Wanti, Fitrah; Danial, Muhammad; Hasri, Hasri
Chemistry Education Review (CER) Volume 8 Nomor 1 September 2024
Publisher : Program Pasca Sarjana UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/cer.v8i2.65292

Abstract

This research is a quasi-experimental research which aims to determine the learning interest of grade XI KI 4 students at SMK SMTI Makassar towards the main material of redox reactions. The research design uses the matching pretest-posttest design. The population in this study was all students in grade XI majoring in Industrial Chemistry (KI) at SMK SMTI Makassar with the total of 98 students were divided into four classes, and the research sampels were the students of grade XI KI 4. The results of the descriptive analysis of learning interest obtained an average of 81. The results of the inferential analysis of learning interest by using the t test obtain a significant value of 0.00<0.05 which indicated that there are an increase in learning interest of class XI KI 4 students. Therefore, the conclusion of the research is that there is an increase in students' interest in learning class XI KI 4 SMK SMTI Makassar on  redox reactions subject.
PERSEPSI REWARD TERHADAP MOTIVASI BELAJAR MAHASISWA PENDIDIKAN BIOLOGI Genisa, Marlina Ummas; Rizal, Haryanti Putri; Hasri, Hasri; Agussalim, Andi; Maknun, Djohar
Didaktika Biologi: Jurnal Penelitian Pendidikan Biologi Vol 6, No 2 (2022): DIDAKTIKA BIOLOGI
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/dikbio.v6i2.5462

Abstract

Reward mempunyai peran penting dalam mempertahankan ataupun membangun motivasi belajar mahasiswa karena dianggap salah satu penentu keberhasilan selama mengikuti perkuliahan. Penelitian ini bertujuan untuk menganalisis motivasi belajar mahasiswa pendidikan biologi dari strata satu (S1) dan strata dua (S2) ditinjau dari pemberian reward selama perkuliahan. Data dikumpulkan menggunakan kuesioner online tentang persepsi mahasiswa secara umum dan khusus terhadap reward yang diadaptasi dari Lloyd (2007). Selanjutnya, data dianalisis secara kuantitatif untuk menjelaskan persepsi dari 190 mahasiswa pendidikan biologi yang terdiri dari 177 mahasiswa strata satu (S1) dan 13 mahasiswa strata dua (S2). Hasil menunjukkan bahwa seluruh mahasiswa pendidikan biologi setuju dan termotivasi untuk belajar ketika diberikan reward saat perkuliahan. Meskipun persentase tipe reward yang diharapkan berbeda, seperti reward nilai sebesar 50%, pemberian semangat/pujian 23%, lalu 20 % berupa hadiah, sedangkan bentuk lain 7%. Selain itu mahasiswa umumnya lebih memilih diberitahu jika ada reward dibanding diberikan secara spontan. Perbedaan spesifik antara mahasiswa S1 dengan S2 terlihat saat pemilihan khusus jenis reward, dimana mahasiswa S1 lebih memilih nilai sedangkan mahasiswa S2 lebih mengharapkan adanya pengayaan materi, pembimbingan, serta pemberian sumber literatur yang dapat membantu tugas mereka. Penerapan reward yang disesuaikan dengan tingkat pendidikan mahasiswa dapat menjadi acuan dalam mendorong semangat belajar mahasiswa selama perkuliahan.  Reward plays an essential role in supporting or increasing student learning motivation because it is believed as one of contributing factors to students' performance in lectures. This study intended to analyze how rewarding students in classes influences undergraduate (S1) and postgraduate (S2) degrees in biology education students' motivation to learn. The data was gathered utilizing a Lloyd-adapted online survey (2007) regarding students' perceptions of rewards in general and particular. Furthermore, 190 biology education students, consisting of 177 undergraduate students (S1) and 13 postgraduates (S2), had their perceptions addressed through quantitative analysis. The results indicated that all biology education students believed that rewards during lectures motivate them to learn. Although the percentage of the type of reward intended varies, such as a reward in the form of a score was 50%, encouragement or praise was 23%, then 20% was in the form of a gift, while other forms were 7%. In addition, students generally prefered to be informed if there was a reward compared to being given it spontaneously. When deciding on a specific reward, it was evident that postgraduate students differed significantly in their choices. Whereas undergraduate students prioritized grades or scores, postgraduate students expected more material enrichment, mentoring, and the provision of literature resources to assist with their assignments. Implementing rewards that are relevant to the educational level of the students can be a reference for enhancing their interest in lectures.
PKM PENINGKATAN KETERAMPILAN MAHASISWA DALAM MENGOLAH DAN INTERPRETASI DATA FTIR HASIL PENELITIAN: PKM PENINGKATAN KETERAMPILAN MAHASISWA DALAM MENGOLAH DAN INTERPRETASI DATA FTIR HASIL PENELITIAN Jaya Negara, Satria Putra; Hasri, Hasri; Genisa, Marlina Ummas; Rizal, Haryanti Putri
ABDI KIMIA: Jurnal Pengabdian Masyarakat Vol 2 No 1 (2024): Jurnal Edisi Desember
Publisher : Jurusan Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/abdi.v2i1.5865

Abstract

Keterbatasan kemampuan mahasiswa dalam mengolahan dan menginterpretasi data instrumen sering menjadi kendala dalam menyusun tugas akhir oleh karena itu kegiatan ini bertujuan untuk meningkatkan keterampilan mahasiswa dalam mengolah dan menginterpretasi data Fourier Transform Infrared Spectroscopy (FTIR) menggunakan aplikasi OriginLab. FTIR merupakan salah satu instrumen penting dalam penelitian saintek (IPA) untuk menganalisis gugus fungsi dan interaksi molekul pada berbagai sampel. Pelatihan ini melibatkan mahasiswa akhir sebagai mitra dari angkatan 2020, 2021, dan 2022 baik yang sedang atau yang melakukan penelitian tugas akhir. Metode pelatihan meliputi pemberian materi teori FTIR, praktik teknis pengolahan data menggunakan OriginLab, simulasi interpretasi spektrum, serta pendampingan studi kasus. Untuk mengetahui peningkatan kemampuan mahasiswa dalam mengolah data, maka dilakukan pre test dan post test. Hasil kegiatan menunjukkan peningkatan yang signifikan dalam pemahaman dan keterampilan menginterpretasikan data, dengan rata-rata peningkatan sebesar 28,62%. Mahasiswa mampu mengolah dan menginterpretasi spektrum FTIR secara mandiri, menghasilkan data berkualitas dalam mendukung hasil penelitiannya. PKM ini telah memberikan manfaat langsung kepada mahasiswa dan berkontribusi pada penguatan kompetensi teknis untuk kebutuhan akademik maupun profesional.
PKM Meningkatkan Pengetahuan dan Peterampilan Mitra Tani dan Masyarakat Tentang Kewirausahaan Buah dan Batang Pisang bagi Kelompok Mitra Matongeng-Tongeng Desa Mallongi Longi Kabupaten Pinrang Side, Syafruddin; Hasri, Hasri; Rakib, Muhammad; Yusuf SAP, Andi Muhammad Ridho; Suciyanti, Nurafni
Panrannuangku Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2025)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/panrannuangku3146

Abstract

Kegiatan Program Kemitraan Masyarakat (PKM) yang berlangsung di Desa Mallongi-Longi, Kecamatan Lanrisang, Kabupaten Pinrang. Tujuan dari kegiatan ini mencakup beberapa hal yang ingin dicapai, yaitu: a) Meningkatkan pengetahuan dan keterampilan anggota mitra terkait wirausaha dalam kelompok mereka. b) Meningkatkan pemahaman dan ketrampilan anggota mitra dalam mengolah hasil panen jagung dan pisang menjadi produk yang memiliki nilai ekonomis. c) Meningkatkan pengetahuan dan keterampilan anggota mitra dalam memanfaatkan pemasaran berbasis digital. Kegiatan PKM ini bertujuan membantu mitra dalam mengelola hasil tani, khususnya pisang, dengan mengatasi masalah kurangnya pemahaman dan keterampilan. Metode yang digunakan meliputi pelatihan, diskusi, dan penyuluhan. Selama satu bulan, kegiatan mencakup pembuatan pupuk, evaluasi, serta pengemasan dan pemasaran produk. Hasilnya, terjadi peningkatan pengetahuan mitra dalam wirausaha, pengelolaan hasil panen menjadi produk bernilai ekonomi tinggi, serta penggunaan metode pemasaran digital yang lebih efektif..
Exploring new feedback practices paradigm in higher education: students’ perspectives Genisa, Marlina Ummas; Rizal, Haryanti Putri; Hasri, Hasri; Agussalim, Andi
International Journal of Evaluation and Research in Education (IJERE) Vol 14, No 2: April 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v14i2.29819

Abstract

Feedback has recently shifted from being received to being an interaction process, raising considerable interest among educators. This study aims to examine whether current feedback practices in higher education have led to active student interaction processes, and how individual and contextual factors are considered in practice based on gender and university perspectives. An online questionnaire was used to collect data from 418 students from three Indonesian universities, Universitas Negeri Makassar (UNM), Universitas Muhammadiyah Palembang (UMP), and Universitas Sulawesi Barat (USB). The data was analyzed descriptively-quantitatively. Results indicate that current feedback practices do not adequately direct students to actively participate in the processing feedback. The feedback received is dominated by general feedback (UNM and USB), while detailed and discussed feedback is generally received by UMP students. Additionally, the expected and effective feedback obtained the same pattern that individuals and groups must interact which is in line with the new paradigm. The results also showed the ideal time for providing feedback is 5-10 days for various types of assignments and 15-20 days for theses. These results provide educators with information on strategies and approaches in feedback practices that are relevant and effective in enhancing student learning based on the new paradigm.
Penerapan Budidaya Ikan Lele Sistem Bioflok pada BUMDes Bumi Paccelekang Sejahtera di Desa Paccelekang Kabupaten Gowa Sulawesi Selatan: The Implementation System of Biofloc Catfish Farming at BUMDes Bumi Paccelekang Sejahtera in Paccelekang Village, Gowa Regency, South Sulawesi Jayadi, Jayadi; Rosada, Ida; Nursyahran, Nursyahran; Hamdillah, Andi; Hasri, Hasri
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 3 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i3.8357

Abstract

Pattallassang District is a Mamminasata Metropolitan development area for urban settlements with an area of 5,983 Ha as an eastern Satellite City in Panaikang Village and Paccelekang Village, Pattallassang District. To improve the welfare of the people of Pacellekang Village, BUMDes Bumi Paccellekang Sejahtera (BUMDes BPS) was established, an agro-complex-based integrated tourist destination program. This Community Service activity aims to introduce innovative biofloc technology for catfish farming and provide technical guidance to catfish farming groups in Paccelekang Village through the biofloc system. The Community Service Program (PKM) was conducted in September 2024 in Paccelekang Village, targeting members of the BUMDes Paccelekang Sejahtera catfish farming group. The approach model used in this PKM program is Participatory Rural Appraisal (PRA). The results of the PKM activities, through counseling and training programs, show that on average, partners had a low level of knowledge and skills regarding biofloc catfish farming techniques, with 70% (21 members) categorized as low, and only 10% (3 members) and 20% (6 members) categorized as good and fair, respectively. However, after the counseling and training, the knowledge level of the partners improved, with 10% (3 members) still in the low category, and 10% (3 members) and 80% (24 members) now categorized as good and fair, respectively. Quantitatively, there was a significant improvement in partner knowledge after the counseling and training. Continuous assistance will be provided until the partners become proficient in managing and cultivating catfish using the biofloc system.
PELATIHAN LITERATURE REVIEW GUNA MENINGKATKAN PEMAHAMAN MENDALAM MENYUSUN KARYA TULIS ILMIAH PADA MAHASISWA JURUSAN KIMIA UNIVERSITAS NEGERI MAKASSAR Kartika, Andi Eka; Negara, Satria Putra Jaya; Agussalim, Hastuti; Hasri, Hasri; Afni, Nur
ABDI KIMIA: Jurnal Pengabdian Masyarakat Vol 2 No 2 (2025): Jurnal Edisi Juni
Publisher : Jurusan Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/abdi.v2i2.8347

Abstract

Kemampuan dalam menyusun literature review merupakan keterampilan esensial dalam penulisan karya tulis ilmiah di perguruan tinggi. Namun, banyak mahasiswa masih mengalami kesulitan dalam memahami konsep literature review dan memanfaatkan aplikasi manajemen referensi. Untuk mengatasi permasalahan tersebut, telah dilaksanakan kegiatan pelatihan bertema “Literature review guna meningkatkan pemahaman mendalam menyusun karya tulis ilmiah bagi mahasiswa Jurusan Kimia FMIPA Universitas Negeri Makassar”. Metode pelaksanaan mencakup penyuluhan teoritis, bimbingan teknis, praktik mandiri, serta evaluasi melalui angket pre-test dan post-test dengan enam butir pertanyaan sebagai indikator kompetensi. Kegiatan ini diikuti oleh 20 mahasiswa aktif angkatan 2023–2024. Hasil evaluasi menunjukkan adanya peningkatan signifikan dalam pemahaman mahasiswa, terutama pada pemahaman dasar literature review, pengorganisasian literatur, serta pembuatan daftar pustaka otomatis. Sebanyak 60–75% peserta menunjukkan peningkatan kompetensi pada indikator utama. Kegiatan ini terbukti efektif dalam meningkatkan keterampilan mahasiswa dalam menyusun karya tulis ilmiah berbasis referensi yang relevan dan terstruktur. Kegiatan ini memberikan kontribusi penting dalam peningkatan literasi ilmiah mahasiswa serta mengurangi risiko plagiarisme akibat kesalahan sitasi.
Sintesis Komposit Kitin-Silika (Ki-Sil) dan aplikasinya sebagai adsorben Logam Fe(III) dan Cr(III) Hasri, Hasri; Pratiwi, Diana Eka; Rahma, Muftihatu; Negara, Satria Putra Jaya; Genisa, Marlina Ummas; Rizal, Haryanti Putri
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol 14, No 1 (2025): Maret
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/sainsmat141707452025

Abstract

Limbah sekam padi dapat dimanfaatkan sebagai sumber silika dengan kandungan silika sebesar 86,90-97,30 % hal ini berpotensi sebagai material berbahan dasar silika. Demikian pula sumber kitin berlimpah pada cangkang crustaceas (kepiting, udang, lobster dll), perpaduan kitin-silika (Ki-Sil) sebagai komposit menjadi sangat menarik untuk diteliti. Sehingga penelitian ini bertujuan untuk mensintesis komposit Ki-Sil dan aplikasinya sebagai adsorben ion logam Fe(III) dan Cr(III). Mula-mula dilakukan ekstraksi silika sekam padi selanjutnya sintesis komposit Ki-Sil. Komposit yang diperoleh  dioptimasi terhadap pH dengan variasi pH (2-6), kapasitas adsorpsi dengan variasi konsentrasi (50-150 ppm) dan uji selektivitas adsorpsi kedua ion logam dengan perbandingan (0,25:0,75 ; 0,75:0,25 dan 1:1). Analisis gugus fungsi Ki-Sil menggunakan FTIR dan analisis morfologi menggunakan SEM. Hasil penelitian diperoleh pH optimum 4 untuk adsorpsi kedua logam target. Kapasitas adsorpsi logam Fe(III) berturut-turut adalah 31,49 mg/g; 69,69 mg/g; 89,83 mg/g dan 138,57 mg/g. Dan kapasitas adsorpsi logam Cr(III) berturut-turut adalah 37,80 mg/g; 70,86 mg/g; 89,98 mg/g dan 138,84 mg/g. Hasil uji selektivitas menunjukkan bahwa Ki-Sil mengadsorpsi logam Fe(III) sebesar 0,9820 mmol dan terhadap logam Cr(III) sebesar 0,9949 mmol. Disimpulkan bahwa komposit Ki-Sil lebih selektif mengadsorpsi logam Cr(III).
Co-Authors Abd Rahman Abdalrazaq, Eid Abdul Karim AGUSTINA, WAHYUNI Ahmad Fudhail  Majid An Nur, Abdillah Mushawwir Andi Agussalim, Andi Arfiani Nur Aulia, Army Dahlan, Rosmidah Rezki Dalle, Firda Anwar Diana Eka Pratiwi Djohar Maknun Eka Pratiwi, Diana Eka Pratiwi Elim, Yohana Enre, Alimin Fachry Abda El Rahman Fadliah, Fadliah Fitri, Nurul Annisa Ganisa, Marlina Ummas Ghanima Yasmaniar Hamdillah, Andi Haryanti Putri Rizal Hastuti Agussalim Herlina Herlina Husla, Ridha Ilyas, Nita Magfirah Indah Raya Jaya Negara, Satria Putra Jayadi Jayadi Kamaluddin, Muh Arif Kartika, Andi Eka khairia, ihdal Khalidah, Muti'ah Kollur, Shivaa Prasad M, Mohammad Wijaya M., Mohammad Wijaya Marlina Ummas Genisa Maryono Maryono Marzuki, Andika Muhammad Anwar Muhammad Burhannudinnur Muhammad Danial Muhammad Rakib Muhammad Taufiq Muharram, Muharram Natalia, Adelina Elizabeth Negara, Satria Putra Jaya Nicha, Walny Nilasari, Nilasari Nur Afni Nursyahran, Nursyahran Paulina Taba Pince Salempa Rahayu, Etry Rahma, Muftihatu Ramlawati Ramlawati Rezki, Nur Annisa Rini Perdana Risnawati Risnawati Rizal, Hariyanti Putri Rosada, Ida Sadriadi, Sadriadi Safitri, Isriyanti Salmia, Salmia Sari, Trianita secondriani, harmeida Sri Nur Qadri Subandrio Suciyanti, Nurafni Sudding, Sudding Sugiarti Sugiarti Sukaria, Muhammad Ikhsan Sulfikar, Sulfikar Sulistiani Jarre Suriati Eka Putri Suryani T, Andi Lilis Suryani T, Andi Lilis Syafruddin Side Syahraeni, Syahraeni Syahruddin Kasim Taupik Hidayat, Taupik Wahid Wahab, Abdul Wanti, Fitrah Widayati Putri, Tri Wiwiana, Wiwiana Yusuf SAP, Andi Muhammad Ridho Zahra, Audrey Zainal, Arzeti Zubair, Sakinah