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All Journal Communications in Science and Technology Jurnal Abdimas Kartika Wijayakusuma
Lestari, Witri Wahyu
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Efficient degradation of methyl orange through photo-Fenton processes with MIL-100(Fe) modified Fe\(_3\)O\(_4\) (Fe\(_3\)O\(_4\)@MIL-100(Fe)) catalyst Puspitasari, Melani Puji; Pratama, Jeesica Hermayanti; Nugroho, Roshid Adi; Lestari, Witri Wahyu; Kemala, Yusnadia; Saraswati, Teguh Endah; Fansuri, Hamzah; Mukti, Rino Rakhmata; Suharbiansah, Rujito S. R.
Communications in Science and Technology Vol 9 No 2 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.2.2024.1493

Abstract

The research successfully synthesized a composite MIL-100(Fe) modified Fe3O4 (Fe3O4@MIL-100(Fe)) catalyst and examined its efficiency in degrading methyl orange (MO) through the photo-Fenton process compared to Fenton. The different percentages of Fe3O4 were integrated into MIL-100(Fe) and their effects on material characteristics and degradation capabilities were studied. Ex-situ synthesis involved varying Fe3O4 weight ratios (3, 10, and 20% w/w). Characterization techniques confirmed the integration of Fe3O4 and MIL-100(Fe) and revealed changes in surface area, pore size, and thermal stability with Fe3O4 addition. Meanwhile, removal tests showed promising results with the photo-Fenton process exhibiting maximum efficiency (95.51%) using 10% Fe3O4@MIL-100(Fe). This study provides valuable insights into developing efficient photo-Fenton catalysts for environmental remediation, particularly for addressing dye pollution in wastewater by highlighting the potential of Fe3O4@MIL-100(Fe) composites in this context.
Investigation of hexanal removal through adsorption and photocatalysis on ZIF-7 modified with ZnO, TiO\(_2\), and ZnO/TiO\(_2\) using ATR-FTIR Naufal, Widyan Muhammad; Wahyuningsih, Sayekti; Lestari, Witri Wahyu
Communications in Science and Technology Vol 9 No 2 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.2.2024.1505

Abstract

Zeolitic imidazolate framework (ZIF) is renowned for its high adsorption capacity and frequently adsorbs organic pollutants. However, its high band gap energy has limited its photocatalytic activity, thus necessitating a modification for enhance performance enhancement. This study focuses on developing a ZIF-7 composite material that integrates adsorption and photocatalysis to remove volatile organic compounds (VOCs), particularly hexanal. Modifications were made by incorporating ZnO, TiO2, and ZnO/TiO2 via a solvothermal method using dimethylformamide (DMF). ATR-FTIR analysis was employed to monitor any changes in peak intensity related to the C=O vibrations of hexanal around 1700 cm-1. The results showed that all samples effectively adsorbed hexanal, reducing peak intensity after UV irradiation, and confirming successful photocatalysis. Notably, TiO2@ZIF-7 exhibited the highest photocatalytic performance with 88.06% degradation efficiency. This study confirms that the ATR-FTIR method can be used to monitor the success of adsorption and photocatalysis and shows the potential for developing composite materials to remove VOCs such as hexanal.
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.
Co-Authors Abdul Basith Dian Maruto Widjonarko Edi Pramono Hamzah Fansuri Kemala, Yusnadia Melina, Dika Caesar Mukti, Rino Rakhmata Naufal, Widyan Muhammad Nugroho, Roshid Adi Pratama, Jeesica Hermayanti Puspitasari, Melani Puji Rahayu Rahayu Sayekti Wahyuningsih Sentot Budi Raharjo Suharbiansah, Rujito S. R. Teguh Endah Saraswati Venny, Venny Wulandari, Resa Zetadini, Reza