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STUDI PENGARUH TEMPERATUR KALSINASI TERHADAP KOMPOSISI FASA SERBUK ZnO YANG DISINTESIS MELALUI METODE SOL-GEL Nurhayati, Nurhayati; Musyarofah, Musyarofah; Rahastama, Swastya; Shoodiqin, Dian Mart; Prayitno, Budi; Puspitasari, Nurrisma
Jurnal Ilmu Fisika Vol 16 No 1 (2024): March 2024
Publisher : Jurusan Fisika FMIPA Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.16.1.71-78.2024

Abstract

This study investigated the effect of calcination temperature on the phase composition and crystal size of zinc oxide powders synthesised by the sol-gel method. Zn powder, HCl and NaOH were used as precursors in a multi-step process involving dissolution, titration, gel formation, leaching, drying and calcination at temperatures ranging from 300°C to 700°C for 2 hours. Rietveld analysis of X-ray diffraction (XRD) data using MAUD and Rietica software determined phase composition and crystal size. Initial analysis identified a single simonkolleite phase (Zn5(OH)8Cl2) prior to calcination, which disappeared at 500°C. Wurtzite (ZnO) appeared at 300°C, accompanied by secondary phases (NaCl and ZnCl2). The wurtzite content increased to 81.42 wt% at 700°C. Calcination temperature also influenced crystal size, which ranged from 27.34 nm to 110.61 nm for wurtzite at different temperatures. The results highlight the dynamic changes in phase composition and crystal size with different calcination temperatures, providing valuable insights into tailoring zinc oxide properties for various applications.
Analisis Pengesahan Penyesuaian Batas Antara Flight Information Regional Jakarta Dan Flight Information Regional Singapura Dengan Peraturan Presiden Nomor 109 Tahun 2022 Prayitno, Budi; Pramono, Agus; Sudarto, Sudarto
LITERATUS Vol 6 No 2 (2024): Jurnal Ilmiah Internasional Sosial Budaya
Publisher : Neolectura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37010/lit.v6i2.1725

Abstract

The flight information region adjustment agreement between Indonesia and Singapore, as the Realignment Flight Information Region Agreement, has been ratified by Presidential Regulation Number 109 of 2022 concerning Ratification of the Agreement between the Government of the Republic of Indonesia and the Government of the Republic of Singapore concerning the Adjustment of Boundaries between the Jakarta Flight Information Region and the Singapore Flight Information Region on September 5, 2022. The problem to be discussed is How are the regulations for ratification of boundary adjustments between Jakarta flight information regional and Singapore flight information regional based on laws and regulations in Indonesia? and What are the implications of ratifying the adjustment of the boundaries between Jakarta's regional flight information and Singapore's regional flight information with presidential regulation number 109 of 2022?. With the normative legal research method (normative legal research). The regulation of ratifying the adjustment of the boundaries between Jakarta's regional flight information and Singapore's regional flight information is regulated by Law Number 1 of 2009 concerning Aviation and its implementing regulations. This law also refers to the regulations of the International Civil Aviation Organization (ICAO), which is a global reference in the management of airspace and FIR as well as the Indonesia-Singapore Flight Information Region (FIR) Adjustment Agreement 2022. The implications of ratifying the adjustment of the boundaries between Jakarta's regional flight information and Singapore's regional flight information with presidential regulation number 109 of 2022 occur in the Implications in the political field, Implications in the Economic field and Implications in the field of national defense and security. The regulation of ratifying the adjustment of the boundaries between Jakarta's regional flight information and Singapore's regional flight information Indonesia must strengthen and maintain the FIR areas on maps A and B so that they are not managed again by Singapore. The implication of ratifying the adjustment of the boundaries between Jakarta's regional flight information and Singapore's regional flight information is that Indonesia must think about immediately regulating a Single Air Traffic Provider where all Indonesian airspace is regulated in one FIR (Flight Information Region). Keywords: presidential regulation, FIR, boundary adjustment
SCHOOL BUDGET MANAGEMENT TRAINING AT SMP KATHOLIK DON BOSCO SEMBORO TANGGUL – JEMBER Prayitno, Budi; Wany, Eva; Yustisie, Renta
Journal of Social Comunity Services Vol. 2 No. 1 (2025): Journal of Social Comunity Services
Publisher : Antis-publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61796/jscs.v2i1.228

Abstract

Objective: This study aims to enhance financial and administrative management at SMP Katholik Don Bosco Semboro Jember, an educational institution that has experienced significant growth in assets and scale. This growth necessitates the adoption of efficient and accountable financial practices to establish robust and credible organizational governance. Method: The method employed includes a structured approach of training sessions, continuous assistance, and activity evaluations. Each session is designed to address gaps in financial and administrative management, focusing on budget discipline, financial planning, and accurate record-keeping. A training module was also provided to aid in participants' understanding of the material. Results: The activities were well-received by the school's finance and administrative staff, resulting in improvements in budget planning, transparent financial reporting, and streamlined administrative processes. Adherence to applicable financial standards further enhanced accountability and efficiency in the school's financial management. Novelty: The novelty of this study lies in its comprehensive, practice-oriented training model tailored specifically for educational institutions. This model offers a replicable framework for similar foundations seeking to strengthen their financial governance. The outputs include a training module and an improved financial management framework adapted to the needs of SMP Katholik Don Bosco Semboro Jember, providing long-term benefits for the foundation’s financial accountability and organizational credibility.
Enhanced Optical Properties of ZnO-TiO2 Films Through Co-Sensitization with Multiple Natural Dyes Musyarofah, Musyarofah; Nuraini, Inas; Prayitno, Budi; Ernawati, Lusi; Ismail, Andi Idhil; Triwikantoro, Triwikantoro
Indonesian Journal of Chemistry Vol 25, No 1 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.96154

Abstract

The ZnO-TiO2 films were co-sensitized with single, double, and triple natural dyes, leading to distinct effects on the optical properties. ZnO (wurtzite) and TiO2 (anatase) were prepared from commercial powders and the XRD results revealed that the crystallite size is 158 and 443 nm, respectively. The UV absorbance of ZnO powder shows significant peaks at wavelengths of 255 and 345 nm, with a band gap energy of 3.07 eV. Meanwhile, TiO2 powder exhibits a maximum peak at 325 nm and possesses a band gap energy of 3.16 eV. The extraction of natural dyes (Moringa oleifera, Biancaea sappan, Matricaria chamomilla, Rosa, and Chrysanthemum) was carried out using a cost-effective and simple method involving immersion in ethanol for 2 × 24 h followed by filtration. FTIR test results show the presence of O–H, C–H, C=C, and C–O functional groups. The results of coating the ZnO-TiO2 film with natural dyes show that the UV spectrum peaks are higher than the visible light wavelength. Co-sensitization of double natural dyes demonstrated different effects on the ZnO-TiO2 film, i.e., achieved panchromatic absorption mainly in the UV wavelength spectrum.
Pengenalan budaya di wilayah IKN dan sekitarnya untuk mahasiswa asing melalui kegiatan cultural camp Musyarofah, Musyarofah; Susantiningdyah, Healty; Pratama, Maryo Inri; Rahendraputri, Chandra Suryani; Putri, Hesti Rosita Dwi; Arisalwadi, Meidi; Sholihah, Ni’matus; Ngabito, Olivia Febrianty; Prayitno, Budi
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 4 (2024): December
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i4.27243

Abstract

Abstrak Cultural Camp merupakan salah satu program pengabdian masyarakat yang dijalankan di Institut Teknologi Kalimantan (ITK), yang bertujuan untuk memberikan pemahaman mendalam tentang kekayaan budaya Indonesia kepada mahasiswa asing dan lokal. Dengan tema "Ibu Kota Nusantara (IKN): A City for All," program ini menargetkan pembentukan generasi mahasiswa yang menghargai perbedaan budaya dan mampu berkontribusi dalam melestarikan warisan budaya Indonesia. Sejumlah 30 peserta dari Perancis, Denmark, Jerman, China, Malaysia, dan mahasiswa lokal mengikuti kegiatan ini. Peserta mengikuti rangkaian aktivitas mulai dari short course tentang IKN, pelatihan membatik, mencicipi santapan khas daerah, hingga campus tour, jalan santai ke Kebun Raya Balikpapan, dan kunjungan ke kampung adat Dayak. Metode deskriptif kualitatif digunakan dalam kegiatan ini, dengan pengumpulan informasi melalui pengamatan, dokumentasi, dan wawancara untuk memahami pengalaman peserta selama Cultural Camp. Interaksi antara peserta dari berbagai latar belakang budaya menguatkan keterlibatan dan pemahaman antarbudaya, menciptakan ikatan peserta dan masyarakat lokal, meningkatkan komitmen bersama dalam mendukung dan memperkaya satu sama lain dalam perjalanan lintas budaya. Kata kunci: cultural camp; budaya; ibu kota nusantara; kalimantan; dayak. Abstract Cultural Camp is one of the community service programs run at Institut Teknologi Kalimantan (ITK), which aims to provide an in-depth understanding of the richness of Indonesian culture to foreign and local students. With the theme " Ibu Kota Nusantara (IKN): A City for All," this program targets the formation of a generation of students who respect cultural differences and are able to contribute to preserving Indonesia's cultural heritage. 30 participants from France, Denmark, Germany, China, Malaysia and local students took part in this activity. They took part in a series of activities ranging from a short course on IKN, batik training, tasting regional specialties, to a campus tour, a leisurely walk to the Balikpapan Botanical Gardens, and a visit to a Dayak traditional village. A qualitative descriptive method was used in this activity, by collecting information through observation, documentation and interviews to understand the participants' experiences during the Cultural Camp. Interaction between participants from various cultural backgrounds strengthens intercultural engagement and understanding, creates bonds between participants and local communities, increasing mutual commitment in supporting and enriching each other in cross-cultural travel. Keywords: cultural camp; culture; ibu kota nusantara; kalimantan; dayak.
Design and Manufacturing of Plastic Waste Recycling Equipment in Tumpuk Tangah Village Panuh, Dedikarni; Astuti, Puji; Prayitno, Budi; Siwanto, Apri; Retno, Deddy Purnomo; Harmiyati, Harmiyati; Suhada, Egi; Che Isa, Nik Norziehana
Journal Of Human And Education (JAHE) Vol. 5 No. 2 (2025): Journal of Human And Education (JAHE)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jh.v5i2.2325

Abstract

Plastic waste is everywhere in almost all sectors, threatening the environment. Recycling is considered the best and most feasible option to overcome this danger. Tumpuk Tangah Sawah Lunto Village is a dense urban area with the potential to be a model for recycling waste. The waste recycling method designed for this service is melting plastic waste first. The waste-melting tool is used so that all plastic waste can be recycled. This research aims to provide education and create tools for recycling plastic waste. The machine developed is used to recycle plastic waste using a melter. In general, other features of this machine include a melting chamber, a burning chamber, and a vertical-type mixer. The tools designed are planned and comply with safety specifications. They are easy to operate, efficient, and low-cost. The people of Tumpuk Tangah Village can use this melting tool as an assisted village to recycle plastic waste.
Characterization of Zn-Doped MgTiO3 Powders Synthesized by Dissolved Metals Mixing Method Musyarofah, Musyarofah; Tanaka, Isao; Mohamed, Zakiah; Poo-arporn, Yingyot; Ernawati, Lusi; Yudoyono, Gatut; Prayitno, Budi
Indonesian Journal of Chemistry Vol 25, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.95879

Abstract

Zn-doped magnesium titanate powders with different Zn compositions, x = 0 to 1, were synthesized using the dissolved metals mixing method. The roles of calcination temperature and dopant Zn composition on powder morphology, phase composition, crystallite size, crystalline cell volume, and local environment were investigated through scanning electron microscope (SEM) observation, Rietveld analysis of powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and X-ray absorption spectroscopy (XAS) for Ti K-edge X-ray absorption near edge structures (XANES). We found that the geikielite solid solutions were formed during the pre-calcination at 400 °C for 1 h. Results show spherical particles (~1 µm) with minimal size variation across calcination temperatures (600–800 °C) and Zn compositions, though some agglomeration occurs. After calcination at 600 °C for 4 h, the crystalline cell volume of geikielite was proportional to the Zn composition, implying the formation of the solid solution in the range of Zn composition up to the level close to x = 1. This successful synthesis of the Zn-doped magnesium titanate nanocrystals at temperatures much lower than those required by the solid-state reaction method was thereby well demonstrated.
Ekstraksi dan Studi Sifat Optik Pewarna Alami untuk Aplikasi Dye-Sensitized Solar Cell Musyarofah, Musyarofah; Prayitno, Budi; Fauziyah , Nur Aini; Nuraini , Umi; Puspitasari, Nurrisma
SPECTA Journal of Technology Vol. 7 No. 2 (2023): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v7i2.868

Abstract

Extraction and study of the optical properties of natural dyes from several plant parts such as leaves, flowers, tubers, and fruits have been carried out using a simple maceration method and UV-Vis absorption characterization. The samples were divided into several groups in this study, namely the flower group (Tagetes sp., Paeonia sp., Centaure sp., Chrysanthemum sp., Carthamus tinctorius, Gomphrena globosa, Myosotis sylvatica, Lavandula sp., Clitoria ternatea, Matricaria chamomilla, Hibiscus sabdariffa, and Rosa sp.); the leaf group (Mangifera indica, Moringa oleifera, Graptophyllum pictum, Spinacia oleracea, Citrus hystrix, and Terminalia sp.); and the tuber and fruit group (Solanum lycopersicum, Cucurbita moschata, Garcinia mangostana, Curcuma longa, Beta vulgaris, and Caessapina sp.).  The extract of natural dyes was successfully produced using a low-cost and simple extraction approach via dehydration, immersion for 2×24 hours in ethanol, and followed by filtration. The optical properties of the dyes in UV and visible light range were observed using a UV-Vis spectrophotometer in the wavelength of 400-700 nm. The absorption behaviour showed dominant peaks at different wavelengths for each group. Potentially, to do a combination of dyes (co-sensitization: using more than a dye with different absorption spectra to achieve a panchromatic response) to widen the wavelength absorption for dye-sensitized solar cell (DSSC) applications.
Implementation and Impacts of Education for Sustainable Development: Experience of Universitas Gadjah Mada G. Perdamaian, Laksana; S. Utami, Sentagi; Prayitno, Budi; Guntoro, Pri Joewo
Journal of Sustainability Perspectives Vol 1: Special Issue 2021
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (902.414 KB) | DOI: 10.14710/jsp.2021.12033

Abstract

A green physical setting would need green behavior and culture to sustain and function properly. Education is a key component to form a sustainable mindset and lifestyle for society, especially youth. As a university with a vision to be a resilient and healthy campus, Universitas Gadjah Mada has actively involved in providing education for sustainable development. The activities have commenced since 2016 through Integrated Smart and Green Building research group and involve participants from both internal and external audiences. Internal target audiences were primarily freshman UGM students and later extended to include primary and high school students. External audiences were the government and stakeholders from the commercial sector. The program was designed to increase awareness on sustainable development and encourage everyone to take part to achieve its goals. Students were educated on the importance of sustainable lifestyle and expected to practice green behavior in their daily life. For stakeholders, a focus group discussion was organized to start a conversation for the formulation of green building regulation. There were observable immediate changes in cognitive and behavorial domain toward sustainable lifestyle. Sustainable development is a long term vision and it needs participation from everyone. Higher education as a center of knowledge should actively provide society with education to achieve sustainable development.
Water Management in UGM for Resilient and Healthy Campus Mulyono, Panut; Utami, Sentagi Sesotya; Prayitno, Budi; Salis, Fiki Rahmatika; Faridah, Faridah
Journal of Sustainability Perspectives Vol 1: Special Issue 2021
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1332.413 KB) | DOI: 10.14710/jsp.2021.12007

Abstract

Water management is one of the most challenging aspects of campus management. With a large number on campus population and limited water resources, water management is essential for achieving a resilient and healthy campus. In this paper, we explain two targets in UGM water management: water efficiency and water conservation. Both objectives are significantly related; however, each goal has a different approach to the method for the design approach and strategies in the implementations. Water efficiency is included in building new buildings and retrofitting the existing ones. Meanwhile, water conservation is implemented to calculate potential alternative water resources in UGM, including water treatment, to produce freshwater as an additional water supply. We also explain how water management is implemented in UGM from the highest Directorate to the lowest units. Through our method and best practices in UGM, we hope our paper could be a reference for other universities who want to implement a water management program.
Co-Authors Abidin, Khoirul Abidin, Khoirul Abidin Adi Suryadi, Adi Agung R, Risa Rahelia Agung R., Risa Rahelia Agus Pramono Agustin, Tyssa Amelia Vega Ahmad Sarwadi, Ahmad Aini , Auliya Nur Alfini Baharuddin Anak Agung Istri Sri Wiadnyani Andrie, Attila Alief Anugrah Apri Siswanto Ardhansyah, Mukti Ariadi, Adyanti Putri Aulia, Zahra Windi B. Hari Wibisono, B. Hari Bambang Setyadarma, Bambang Che Isa, Nik Norziehana Dedikarni Devy Setiorini Sa’adiyah Dewandra Bagus Eka Putra, Dewandra Bagus Eka Dimas Wihardyanto Eko Agung Syaputra Eliya Pebriyeni, S.Pd., M.Sn, HESTI ROSITA DWI PUTRI, Dra. Ernis, M.Pd, Eva Wany, Eva Fachry Abda El Rahman Fahlepi, Reza Faridah Faridah Fauziyah , Nur Aini Febriansyah G. Perdamaian, Laksana Gatut Yudoyono Guntoro, Pri Joewo harmiyati, harmiyati Heriyanto Husnul Kausarian Idhil Ismail, Andi Ismail, Mohd Suhaili Bin Kartika, Siska Ayu Kasarian, Husnul Kholidiah, Kholidiah Kusuma, Gabriella Liem, Adrianus Leo M. Sani Roychansyah, M. Sani M. Uswah Pawara Mahera, Adinda Kholif Marianti, Annisa Meidi Arisalwadi Miswaty, Miswaty Mita, Maichel Santo Wijaya Mohamed, Zakiah Munirah, Kultsum Musyarofah Musyarofah Musyarofah Musyarofah, Musyarofah Nafisah, Azmia Rizka Natalia, Venincia Ngabito, Olivia Febrianty Nining Sudini Ningrum, Nining Sudini Ni’matus Sholihah Norhidayah, Siti Nuraini , Umi Nuraini, Inas Nurhayati Nurhayati P, Ginanjar Perdana Panuh, Dedi Karni Panut Mulyono Poo-arporn, Yingyot Pratama, Maryo Inri Pratomo Prawirodirjo, Raden Ronggo Bintang Puji Astuti Purwitasari, Fadilla Puspitasari, Nurrisma Qomarun Qomarun Rahastama, Swastya Rahendraputri, Chandra Suryani Ramadhani, Nabbila Salsa Retno, Deddy Purnomo Rosmiati Rosmiati Roychansyah, M Sani S. Utami, Sentagi Sahid, Reza Achmad Sahira, Putri Salis, Fiki Rahmatika Saputra, Dwi Mulia Nur Sarjono Sarjono, Sarjono Sastrawan, Febrian Dedi Saufik Luthfianto Septiyanti, Resty Dwi Sholihah, Ni’matus shoodiqin, dian mart Sihaloho, Elisabeth Romanauli Simanjuntak, Cristovel Siregar, Riki Ruli Affandi Siti Ramdiah Siwanto, Apri Sri Yuliani Sudarto Sudarto Suhada, Egi Susantiningdyah, Healty Susilo Susilo Syahputra, Junico Dwi Syakirin, Hirzan Fakhrusy Tajalla, Gusti Umindya Nur Tajri M., Fulkha Tanaka, Isao Tantri Bararoh Tri Yuni Iswati Triwikantoro Triwikantoro Utami, Sentagi Sesotya Utomo, Zinedine Zidane Vaningsiau, Pravangasta Ajeng Wany, Eva Wany Wibisono, B Hari Wiendu Nuryanti Wiwik Setyaningsih Yustie, Renta Yustisie, Renta