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All Journal Jurnal Sains Dasar Jurnal Pengabdian UntukMu NegeRI JURNAL PHOTON Acta Chimica Asiana Jurnal Pengabdian kepada Masyarakat Nusantara Mestaka: Jurnal Pengabdian Kepada Masyarakat Abdi Akommedia : Jurnal Pengabdian Masyarakat
Hasmalina Nasution
Prodi. Kimia, Fakultas MIPA Dan Kesehatan, Universitas Muhammadiyah Riau
Religion Agriculture, Biological Sciences & Forestry Humanities Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Nursing Physics Social Sciences Other

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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.
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.
The Sintesis Dan Karakterisasi Karbon Aktif Dari Limbah Biomassa Reject Pulp Sebagai Adsorben Zat Warna: Reject pulp Sri Hilma Siregar; Hasmalina Nasution; Wirdati Irma; Dedi Suwito; Aulia Rizki Rahmadani; Sha-Ling Han
Acta Chimica Asiana Vol. 6 No. 2 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i2.164

Abstract

This study examines the design of a heat exchanger (HE) in the production process of nickel ferrite (NiFe2O4) nanoparticles using the coprecipitation method by determining the shell and tube heat exchanger. The Microsoft Excel application is used as a manual calculating machine to facilitate the analysis of heat exchanger (HE) data calculations. The research flowchart starts with a literature study, preparation of tools and materials for design, calculation of the main shell and tube components, and then fabrication. Based on the calculation results, the design specification data for a shell and tube heat exchanger has a shell diameter of 0.032 m, a shell length of 4.267 mm, a thickness of 0.002 m with an initial heat transfer rate (Q) of 460130 W resulting in a heat transfer efficiency of 95.706% and an NTU of 6.165. The high effectiveness value makes the design of the one shell and tube type turbulent flow heat exchanger (HE) considered to have met the standards of high effectiveness and good performance. The design and design process is complete if the device functions properly. This study can be used as a reference for researchers in designing heat exchangers during production to make them more effective, reliable, and economical.
Pembuatan Nugget Dari Biji Nangka Upaya Mengoptimalkan Sumber Daya Masyarakat Desa Kualu Nenas Hasmalina Nasution; Rahmayani Indah Putri; Retno Hidayati; Prasetya Prasetya; Fitra Perdana; Rahmadini Syafri; Jufrizal Syahri; Rahmiwati Hilma; srihilma Siregar; Aulia Rizki Ramadhanti
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 4 No. 4 (2023): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN)
Publisher : Cv. Utility Project Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kualu Nenas Village is a village that produces quite a lot of jackfruit flesh in the form of chips for sale. UMKM that process jackfruit as the main ingredient will have an impact on the amount of easily damaged organic solid waste from the jackfruit itself, such as jackfruit seeds. However, in processing jackfruit seeds are more often just boiled or fried as a snack. One way to process jackfruit seed waste is to make nuggets. Socialization and nugget making training activities were carried out in Kualu Nenas Village with the PPK Ormawa HIMAKI team. The aim of this activity is to increase knowledge and skills for the people of Kualu Nenas Village in processing waste, optimizing natural resources, and improving the community's economy by selling jackfruit seed nuggets. The activity began with a presentation through socialization of material about waste jackfruit seeds and nuggets in general, then continued with practical training in making nuggets from waste jackfruit seeds. The results obtained from this community service activity are that the community can understand the techniques for processing jackfruit seed waste into nuggets well as shown by the achievement percentage ≤ 74%.
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.
Synthesis and characterization of TiO2-Fe for photocatalytic applications of domestic waste Rahmadhani, Annisa; Nasution, Hasmalina; Prasetya, Prasetya; Dayumita, Novialis; Siregar, Sri Hilma
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The Indonesian Chemical Society, Chapter Nusa Tenggara and 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.
Respons Siswa Terhadap Program Sekolah Binaan SMK Se-Riau Program Kimia Fakultas MIPA Dan Kesehatan UMRI Nasution, Hasmalina; Siregar, Sri Hilma; Rahayu, Anggi Putri; Syahri, Jufrizal; Prasetya, Prasetya; Hilma, Rahmiwati; Syafri, Rahmadini; Sari, Meidita Kemala
Mestaka: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 1 (2025): Februari 2025
Publisher : Pakis Journal Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58184/mestaka.v4i1.585

Abstract

The goal of education is to actively develop students' potential by establishing a learning environment and process. Most students still find learning chemistry in high school or trade school to be challenging. One way for universities to help schools grow and enhance secondary school students' skills is through the Assisted School Program. Students in this program receive training to help them develop a broad perspective, expose them to the working world, and encourage their innovative spirit. Students at the target school responded favorably to this exercise, as evidenced by the average proportion of their responses on the indicators of interest, responsiveness, and satisfaction that met positive criteria. Students at this aided school, SMK Negeri 2 Pekanbaru, responded actively to the activities 94% of the time, whereas SMK Negeri 1 Tualang received the fewest replies (72%). In general, student responses regarding their level of enthusiasm in the targeted school activities are excellent. Overall, the guided inquiry method's student replies were rated as good. This is demonstrated by the percentage of each statement falling into the very good category, the overall student response rate of 81.88%, and the pre-test and post-test results, which showed that it had an impact on students' knowledge growth as indicated by the higher post-test scores compared to the pre-test score.
PELATIHAN PEMBUATAN SABUN CUCI PIRING RAMAH LINGKUNGAN SEBAGAI UPAYA PEMBERDAYAAN IBU RUMAH TANGGA RT 04 RK 08 DESA PERAWANG BARAT Nasution, Hasmalina; Mulyani; Putri, Elvina Salsabila
ABDI AKOMMEDIA : JURNAL PENGABDIAN MASYARAKAT Vol. 3 No. 3 (2025)
Publisher : ABDI AKOMMEDIA : JURNAL PENGABDIAN MASYARAKAT

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pengetahuan dan keterampilan ibu rumah tangga RT 04 RK 08 Desa Perawang Barat dalam memanfaatkan potensi lokal, berupa daun pandan dan jeruk nipis, sebagai bahan pembuatan sabun cuci piring ramah lingkungan. Metode yang digunakan adalah Participatory Rural Appraisal (PRA) dengan melibatkan masyarakat secara aktif sejak tahap perencanaan, sosialisasi, pelatihan, hingga evaluasi. Kegiatan dilaksanakan selama dua hari dan diikuti oleh 11 peserta. Pelatihan diawali dengan penyampaian materi mengenai dampak penggunaan sabun berbahan kimia terhadap kesehatan dan lingkungan, dilanjutkan dengan demonstrasi pembuatan sabun dan praktik langsung oleh peserta. Hasil pre-test dan post-test menunjukkan peningkatan signifikan pada tiga indikator yang diukur, yakni pemahaman manfaat bahan alami (dari 30% menjadi 90%), pengetahuan langkah pembuatan sabun (dari 10% menjadi 85%), dan keterampilan praktik pembuatan sabun (mencapai 88%). Produk yang dihasilkan mampu menghasilkan busa yang cukup, efektif membersihkan peralatan dapur, serta memberikan aroma segar. Kegiatan ini terbukti mendorong kemandirian masyarakat dalam memenuhi kebutuhan rumah tangga, sekaligus membuka peluang usaha berbasis produk ramah lingkungan.
Co-Authors - Helvina - Wahyunungsih Abdifi, Reza Alfayed, M. Annisa Mardhatila Aulia Rizki Rahmadani Aulia Rizki Ramadhanti Dayumita, Novialis Dedi Suwito Deliani, Winda Evi Marlina F, Siti Fitra Perdana Helvina, - Henny D J Herdina Utami Hilwan Yuda Teruna Isnaniar Isranbidin Isranbidin J, Henny D Jasril - Jasril Jasril Jufrizal Syahri Jufrizal Syahri Laila Rahmadanis Laira, Ulsanna M. Alfayed Manja Nanda Resa Manja Mardhatila, Annisa MULYANI Musyirna Rahmah Nasution Nur Enizan Nurlaili Nurlaili Nurlaili Nurlaili Prasetya Prasetya Prasetya Prasetya Prasetya Prasetya Prasetya, Prasetya Putri Indah Chantika Putri Khorely Putri, Elvina Salsabila Rahayu, Anggi Putri Rahmadhani, Annisa Rahmadini Syafri Rahmayani Indah Putri Rahmayani Indah Putri Rahmita Syafitri Rahmiwati Hilma Retno Hidayati Reza Abdifi Riani Ulfa Sari, Meidita Kemala Sha-Ling Han Siregar, Sri Hilma Siti F Siti Fatimah Sri Hilma Siregar Tengku Finalia Ulfa, Riani Ulsanna Laira Wahyuni Puspita Sanda Wahyunungsih, - Winda Deliani Wirdati Irma Yuhelson Zumrotun Nasihah