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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Pengabdian UntukMu NegeRI JURNAL PHOTON Acta Chimica Asiana
Prasetya
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences And Health, Universitas Muhammadiyah Riau, Pekanbaru|Universitas Muhammadiyah Riau|Indonesia
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Eco-friendly Edible Film from Chicken Bone Waste and Tapioca Starch Sri Hilma Siregar; P. Prasetya; Aulia Rizki Ramadhanti; Rian Putra; Siti Zahidah
Jurnal Kimia Sains dan Aplikasi Vol 25, No 2 (2022): Volume 25 Issue 2 Year 2022
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (518.611 KB) | DOI: 10.14710/jksa.25.2.79-86

Abstract

The manufacture of edible film from chicken bone gelatin incorporated with starch is essential for Indonesia, where most Muslims are. This is related to Shari’a law which requires Muslims to consume only halal food. Gelatin made from chicken bones is guaranteed to be halal. This study aimed to determine the process of extracting chicken bone waste with acid solvents, making the edible film, and the characterization of chicken bone edible film. This research started with extracting gelatin from chicken bone waste. The 5 g of extracted chicken bones were mixed with 40% w/v glycerol, starch (0, 5, 10, 15% w/v), and distilled water, then heated at 50°C. The mixture was printed in a petri dish (15 cm in diameter) and dried for 24 hours. The edible films were evaluated for physicochemical and mechanical properties, such as tensile strength, elongation, thickness, water resistance, WVTR, and degradation test. Edible film characterization used FTIR, SEM, XRD, and TGA. The optimum condition of the extraction procedure was obtained by using 5% HCl, which produces 8.22172% yield of gelatin with pH of 6.0, water content of 8%, and ash content of 0.945%. In the thickness test, the more significant the starch concentration added, the greater the thickness of the edible film produced. The edible film exhibited a decrease in tensile strength and an increase in elongation along with increasing starch concentration. The results of the WVTR test were only starch concentrations of 0 and 15% that meet the standards, while all concentrations in the water resistance did. The results of FTIR chicken bones with variations in starch and the addition of glycerol as a plasticizer have functional groups N-H, O-H, C-O, C=O, C-H, C-N. Edible films without the addition of starch were utterly degraded within 30 days.
Karakterisasi Hasil Sintesis Fotokatalis TiO2 Dengan Metode Sol-Gel dan Hidrothermal Untuk Aplikasi Limbah Petroleum Manja Nanda Resa Manja; Hasmalina Nasution; Zumrotun Nasihah; Tengku Finalia; Laila Rahmadanis; Prasetya Prasetya; Rahmadini Syafri; Sri Hilma Siregar
Sistem Informasi Vol 12 No 2 (2022): Jurnal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jp.v12i2.3473

Abstract

Petroleum waste (crude oil) has become one of the sources of pollution in the sea. The pollution caused comes from several factors, oil spills from tankers, deliberate disposal of irresponsible industries. The layer of crude oil on the surface of the air holds back gas exchange from the atmosphere and reduces the solubility of oxygen in the waters so that it interferes with the respiration and photosynthesis processes in phytoplankton which are food producers in the sea. This study aims to characterize the synthesized TiO2 photocatalyst material using two methods, namely Sol-Gel (SG) and Hydrothermal (HD) which will then be used for applications in petroleum waste. To determine effectiveness of TiO2 photocatalyst in reducing crude oil spills on the sea surface based on fatty oil parameter tests. The synthesis of TiO2 was carried out by the solgel method (SG) and the hydrothermal method (HD) at various temperatures of 300 oC, 500 oC, and 700 oC. Characterization of the material formed using the SEM-EDX instrument, showed that in general it is spherical in shape, and is composed of C, O and Ti elements. The maximum effectiveness of SG-300, SG-500, and SG-700 was able to reduce fat oil content by 57.19%, 66.14% and 41.42% while HD-300, HD-500, and HD-700 were able to reduce fatty oil content. maximum of 60.87%. , 56.41% and 45.68% in the 120 minute irradiation time. The results showed that the photodegradation process in petroleum waste treatment using TiO2 material was able to reduce the fat oil content.
Synthesis and characterization of TiO2-Fe for photocatalytic applications of domestic waste Annisa Rahmadhani; Hasmalina Nasution; Prasetya Prasetya; Novialis Dayumita; Sri Hilma Siregar
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i1.140

Abstract

Wastewater originating from household, industrial, and public places that contains materials can endanger human life and living things and disrupt environmental sustainability. Various methods have recycled domestic wastewater. One is through the photodegradation process utilizing ultraviolet light in the photocatalytic process. Inorganic materials are semiconductors with photocatalyst activity that can absorb photons and simultaneously carry out material interface transformation reactions. The research aimed to determine the effect of adding Fe metal dopants on TiO2 photocatalyst activity in simulated methylene blue and domestic waste treatment. The precursor used was TiO2 P25 Degussa Anatase. Fe dopant was added using the hydrothermal method with variations of 2%, 4%, and 6%. The XRD characterization results show that TiO2 has a high degree of crystallinity, so the overall process of electron diffusion and electron transfer in SSPT is higher to increase its efficiency. SEM-EDX characterization results show that TiO2-Fe particles are scattered in a spherical shape with a size of less than (<)100 nm and tend to agglomerate. Test results of simulated methylene blue (MB) waste with a UV-Vis spectrophotometer at variations in mass, concentration, pH, and time showed that the addition of doping could increase photocatalytic activity and optimum conditions at 6% (F6) were used in the analysis of parameters pH, COD and TSS of domestic wastewater. The pH value increased from 5 to 6, % COD degradation was 59.17%, and TSS was 23.07%. This research showed that TiO2-Fe was effective enough for domestic wastewater treatment.
Workshop Sertifikasi Pranata Laboratorium Untuk Guru Sains Tingkat SLTA Se-Provinsi Riau Sri Hilma Siregar; Prasetya Prasetya; Hasmalina Nasution; Rahmiwati Hilma; Fitra Perdana; Rahmadini Syafri; Jufrizal Syahri
Jurnal Pengabdian UntukMu NegeRI Vol 7 No 1 (2023): Pengabdian Untuk Mu negeRI
Publisher : LPPM UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jpumri.v7i1.4932

Abstract

Saat ini banyak sekolah tingkat SLTA se-Provinsi Riau dan sekitarnya tidak memiliki pranata laboratorium pendidikan yang berkompeten dibidangnya. Hal ini menyebabkan banyak sekolah yang memiliki laboratorium tapi tidak digunakan secara maksimal, dan siswa siswi tidak dapat melaksanakan praktikum yang semestinya di laboratorium. Laboratorium hanya menjadi tempat pajangan alat peraga dan instrumentasi. Berdasarkan hal tersebut, kami merasa perlu memfasilitasi para pranata laboratorium pendidikan dengan memberikan pelatihan pengelolaan dan penggunaan laboratorium untuk praktikum siswa siswi di sekolah. Sehingga dihasilkan lulusan yang berkompeten. Kegiatan dirancang dalam bentuk pengembangan wawasan keilmuan melalui pemberian berbagai teori selama 2 hari dan dilanjutkan dengan praktik dan penugasan pada 2 hari berikutnya. Materi yang diberikan kepada peserta diantaranya tentang inovasi hasil penelitian, pengenalan dan pengelolaan laboratorium, praktikum ciri-ciri reaksi kimia, hokum kekekalan massa, reaksi zat makanan. pemahaman dan kemampuan guru terhadap materi pelatihan, yang nantinya dapat digunakan sebagai acuan dalam melaksanakan praktikum di laboratorium sekolah. Kegiatan workshop ini mendapat sambutan yang baik dari peserta dan berhasil dengan baik. Keadaan ini dapat dilihat dari kehadiran peserta yang hampir mencapai 100%. Peserta terdiri guru dan pranata laboratrium pendidikan ingkat SLTA se-Provinsi Riau.
Titanium Dioxide (TiO2) Modified Bentonite for Photodegradation in Methylene Blue Dye Sri Hilma Siregar; Prasetya Prasetya; Norramizawati Norramizawati; Marlian Marlian; Aulia Rizki Ramadhanti
Jurnal Kimia Sains dan Aplikasi Vol 26, No 4 (2023): Volume 26 Issue 4 Year 2023
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.26.4.143-150

Abstract

Dye is one of the waste waters, which will be a problem if the content is excessive in the water. Modifying bentonite with titanium dioxide (TiO2) as a photocatalyst for removal of dye waste. In this study, composite synthesis was carried out by mixing bentonite and TiO2 suspensions. The mass of bentonite is 20 g, and the mass variations of TiO2 are 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100%. The resulting composite was heated using a furnace at 550°C for 5 hours. Bentonite-TiO2 composites were characterized using Fourier Transform Infrared, X-Ray Diffraction, and Scanning Electron Microscope-Energy Dispersive X-Ray (SEM-EDX). Photodegradation of methylene blue dye with bentonite-TiO2 was carried out by varying the mass of bentonite-TiO2 photocatalysts (0.02, 0.04, 0.06, 0.08 g); variations in pH (1, 3, 5, 7, and 9), and variations in UV irradiation time (30, 60, 90, and 120 minutes). The results of characterization with FTIR showed the presence of Ti-O-Ti vibrations at wavenumber 1419 cm-1 and Si-O-Ti at wave numbers 780 cm-1 and 799 cm-1. Characterization of 20% bentonite-TiO2 by XRD showed rutile, anatase, and montmorillonite phases. The SEM-EDX bentonite-TiO2 characterization results produced some small particles with a layered structure with TiO2 particles clumping and still in the form of agglomerates, and the EDX results showed the chemical composition of Si and Ti. The results of photodegradation showed that the best activity for the bentonite-TiO2 composite occurred in photocatalyst BT-20% with a mass of 0.08 g, pH 1, and UV irradiation time of 120 minutes with methylene blue 99.942% degraded.
Pelatihan Pembuatan Pupuk Kompos Limbah Kulit Nangka Bagi Masyarakat Desa Kualu Nenas- Kab. Kampar Rahmayani Indah Putri; Hasmalina Nasution; Rahmita Syafitri; Putri Khorely; Prasetya; Fitra Perdana; Rahmadini Syafri; Jufrizal Syahri; Rahmiwati Hilma; Sri Hilma Siregar
Jurnal Pengabdian UntukMu NegeRI Vol 8 No 1 (2024): Pengabdian Untuk Mu negeRI
Publisher : LPPM UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jpumri.v8i1.6255

Abstract

limbah hasil produksi keripik nangka selama ini berdasarkan hasil survei tim ppk ormawa HIMAKI umumnya tidak dioptimalkan dengan baik oleh masyarakat desa, salah satunya ada di Desa Kualu Nenas. Oleh karena itu kegiatan ini dilakukan dengan tujuan untuk mensosialisasikan dan melatih keterampilan masyarakat desa bagaimana mengolah limbah kulit nangka dan menjadikannya salah satu produk UMKM Desa. Salah satu produk yang bisa dibuat dari limbah kulit nangka adalah pupuk kompos. Metode yang digunakan dalam penelitian ini yaitu dengan melakukan pelatihan dan bimbingan teknis pembuatan pupuk dari limbah kulit Nangka dan pemasaran produk yang dihasilkan di Desa Kualu Nenas. Hasil dari kegiatan ini adalah masyarakat dan mitra desa dapat memproduksi pupuk kompos dan produk dapat dikembangkan menjadi salah satu produk UMKM Desa Kualu Nenas.
Co-Authors Akbar, Unggul Annisa Rahmadhani Aulia Rizki Ramadhanti Aulia Rizki Ramadhanti Fitra Perdana Hasmalina Nasution Hasmalina Nasution Hasmalina Nst Hasmalina `Nasution Jasril Jasril Laila Rahmadanis Manja Nanda Resa Manja Marlian Marlian Nasution, Annio Indah Lestari Norramizawati Norramizawati Novialis Dayumita Nurlailli Nasution Olif Syahbella Putri Khorely Rahmadini Syafri Rahmadini Syafri Rahmayani Indah Putri Rahmita Syafitri Rahmiwati Hilma Rian Putra Siti Zahidah Sri Hilma Siregar Sri Hilma Siregar Sri Hilma Siregar Sri Hilma Siregar Syahri, Jufrizal Tengku Finalia Trisiwi Kusumaningrum Unggul Akbar Wahyuni Puspita Sanda Wirdati Irma Yeni Yernita Yuhelson Zumrotun Nasihah