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All Journal JURNAL KIMIA SAINS DAN APLIKASI Alchemy Jurnal Penelitian Kimia ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry Jurnal Abdi Masyarakat Indonesia Jurnal Abdimas Kartika Wijayakusuma
Dian Maruto Widjonarko
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Sebelas Maret University Surakarta
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Energy Engineering Environmental Science Materials Science & Nanotechnology Public Health Social Sciences Other

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Pelatihan Pembuatan Teknologi Kombinasi Pupuk Dasar Dengan Sistem Lepas Lambat (Slow Release) Melalui Pencampuran Zeolit Alam Pada Kelompok Tani Karangpandan Pramono, Edi; Wahyuningsih, Sayekti; Lestari, Witri Wahyu; Saraswati, Teguh Endah; Widjonarko, Dian Maruto; Raharjo, Sentot Budi; Rahayu, Rahayu; Venny, Venny; Basith, Abdul; Zetadini, Reza; Melina, Dika Caesar; Wulandari, Resa
Jurnal Abdimas Kartika Wijayakusuma Vol 4 No 2 (2023): Jurnal Abdimas Kartika Wijayakusuma
Publisher : LPPM Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jakw.v4i2.360

Abstract

Permasalahan kelangkaan pupuk dan penggunaan pupuk kimia sintetik secara berlebih sering muncul dalam pertanian. Hal ini terjadi pula pada sistem pertanian hortikultura di daerah Karangpandan Kabupaten Karanganyar. Perlu adanya edukasi tentang pentingnya manajemen penggunaan pupuk yang baik untuk menghemat dan menjaga kualitas lahan pertanian. Pada kegiatan ini tim pengabdi memberikan penyuluhan dan pelatihan pembuatan pupuk lepas lambat atau slow release guna memberikan pemahaman pemanfaatan material anorganik alam dalam penghematan pupuk kimia sintetik. Kegiatan ini diawali dengan pemaparan materi zeolit dan manfaatnya bagi pertanian dan dilanjutkan dengan pelatihan pembuatan pupuk kombinasi zeolit. Dari pelatihan ini diperoleh bahwa masyarakat menjadi paham akan bahaya pemakaian pupuk sintetik berlebih dan manfaat zeolit bagi pertanian. Pelatihan menjadikan anggota kelompok tani mampu menyiapkan pupuk dengan kombinasi zeolit. Dari survey juga diperoleh bahwa masyarakat tertarik untuk memanfaatkan teknologi campuran pupuk tersebut guna menghemat pemakaian pupuk. Dari kegiatan ini diharapkan teknologi yang dikembangkan di universitas mampu memberikan kontribusi bagi masyarakat tani khususnya pada teknologi pupuk slow release berbasis zeolit alam dan dapat diterapkan bagi kelompok tani pada skala yang lebih besar.
The Effect of Fe Pillaring and Mg Intercalating into Bentonite Structure Widjonarko, Dian Maruto; Pramono, Edi; Rahardjo, Sentot Budi; Wahyuningsih, Sayekti; Saraswati, Teguh Endah
Jurnal Kimia Sains dan Aplikasi Vol 29, No 2 (2026): Volume 29 Issue 2 Year 2026
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.29.2.101-110

Abstract

Bentonite clay particles, measuring less than 2 μm, comprise stacked layers of tetrahedral and octahedral units in a 2:1 configuration (T-O-T). These negatively charged layers were subsequently neutralized with cations. However, the exchange or modification of the cation affects its structure and properties. This study investigates the effect of Fe-ion pillaring on the bentonite layer and the intercalation of Mg ions into Fe-pillared bentonite via ion exchange. The materials were characterized using Scanning Electron Microscopy with Energy Dispersive X-ray Spectroscopy (SEM–EDX) to observe surface morphology and elemental composition, Particle Size Analyzer (PSA) to observe average size and size distribution of particle, Fourier-Transform Infrared Spectroscopy (FTIR) to identify the active site and layer structure, and X-ray Diffraction (XRD) to determine their structural and compositional changes. The results confirm the pillaring treatment effect on a higher average particle size of 469.3 nm, with a polydispersity index (PDI) of 0.495, compared to natural bentonite (414.8 nm and 0.586 nm, respectively). Meanwhile, the intercalating treatment showed a lower average particle size of 433.4 nm and a PDI value of 0.613. FTIR identified the silanol and siloxane functional groups, as well as the aluminosilicate layer. Pillaring by Fe2O3 increased the basal spacing of bentonite from 13.6 Å to 17.35 Å, as indicated by the shift of characteristic bentonite peaks to lower 2θ angles. However, intercalation by MgO into Fe-pillared bentonite actually slightly decreased the basal spacing to 15.16 Å. Meanwhile, Mg intercalation occurred within the interlayer of the aluminosilicate layer, resulting in a peak shift toward higher 2θ angles and an increase in crystallinity to 58.924%, compared with Fe-pillared bentonite (45.376%). This phenomenon is likely related to the presence of the Mg metal intercalant, which has basic properties and can attract the aluminosilicate sheets.
Co-Authors Abd. Rasyid Syamsuri Abdul Basith Ari Handono Ramelan Ari Yusnani Cynthia Linaya Radiman Daryani Daryani Deana Wahyunigrum Eddy Heraldy Edi Pramono Edi Pramono Eko Cahyono Faradilla, Radianita Fitria Rahmawati Gesyth Mutiara Hikhmah Al Ichsan Indriana Kartini Jumina Jumina Khoirina Dwi Nugrahaningtiyas Khoirina Dwi Nugrahaningtyas Khoirina Dwi Nugrahaningtyas Khoirina Dwi Nugrahaningtyas Khoirina Dwi Nugrahaningtyas Lestar, Witri Wahyu Lestari, Witri Wahyu Melina, Dika Caesar Mulyani Mulyani Naufal, Widyan Muhammad Nuryah Muchlisha Nuryono Nuryono Nuryono Nuryono Nuryono Nuryono Ozi Adi Saputra Rahayu Rahayu Rosid Eka Mustofa Sayekti Wahyuningsih Sayekti Wahyuningsih Sentot Budi Rahardjo Sentot Budi Rahardjo Sentot Budi Raharjo Sigit Wiwiet Saputro, Sigit Wiwiet Teguh Endah Saraswati Teguh Endah Saraswati Teguh Endah Saraswati Triyono Triyono Triyono Triyono Venny, Venny Wega Trisunaryanti Wega Trisunaryanti Witri Wahyu Lestari Wulandari, Resa Yulianto Adi Nugroho Yunita Haryanti Zetadini, Reza