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All Journal International Journal of Evaluation and Research in Education (IJERE) Tadris: Jurnal keguruan dan Ilmu Tarbiyah Journal of Mathematical and Fundamental Sciences Alchemy Jurnal Penelitian Kimia JURNAL DOKTRIN Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Bulletin of Chemical Reaction Engineering & Catalysis Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS)
Hadi Nur
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Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Environmental Science Materials Science & Nanotechnology Mathematics Physics Other

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PENGARUH KONSENTRASI TITANIUM DALAM TITANIUM SILIKALIT PADA VIBRASI GUGUS HIDROKSIL PERMUKAAN DENGAN MENGGUNAKAN TEKNIK SPEKTROSKOPI INFRAMERAH Prasetyoko, Didik; Ramli, Zainab; Endud, Salasiah; Nur, Hadi
Alchemy Jurnal Penelitian Kimia Vol 4, No 2 (2005)
Publisher : Alchemy Jurnal Penelitian Kimia

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Abstract

Padatan titanium silikat(TS1) yang mempunyai kandungan titanium berbeda telah disintesis dengan teknik hidrotermal. Struktur padatan dikarakterisasi dengan menggunakan teknik difraksi sinar X, spektroskopi inframerah dan Uvvis DR. Gugus hidroksil permukaan diamati dengan teknik spektroskopi inframerah setelah sampel dievakuasi pada suhu 400oC. Hasil menunjukkan adanya kaitan yang erat antara konsentrasi titanium tetrahedral,pergeseran puncak hidroksil permukaan dan jumlah titanol.
Influence of TiO2/TS-1 Calcination on Hydroxylation of Phenol Ratna Ediati; Maria Ulfa; Hamzah Fansuri; Zainab Ramli; Hadi Nur; Didik Prasetyoko
Journal of Mathematical and Fundamental Sciences Vol. 46 No. 1 (2014)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2014.46.1.7

Abstract

Titanium oxide (TiO2) was impregnated on the surface of titanosilicate-1 (TiO2/TS-1) and used as catalyst for hydroxylation of phenol with hydrogen peroxide. Calcination was conducted at various temperatures (400, 500, 600 and 700°C)in order to observe the effect on the structure and physicochemical properties towards catalytic activity for producing hydroquinone. The structure and physicochemical properties of the TiO2/TS-1 catalyst were characterized by several techniques, such as X-ray diffraction (XRD), infrared spectroscopy, nitrogen adsorption, pyridine adsorption and hydrophilic measurement. The results show that by increasing the calcination temperature,the surface acidity of the catalyst was also increased.TheTiO2/TS-1 catalyst calcined at 500°Cproved to be optimal for hydroquinone production, in which the anatase-rutile phase may be present dispersed on the MFI framework.
UPAYA PENEGAKAN HUKUM OLEH POLRI DALAM PENANGANAN TINDAK PIDANA BERDASARKAN KEADILAN RESTORATIF TERKAIT TINDAK PIDANA LALU LINTAS Hadi Nur; Alpi Sahari
JURNAL DOKTRIN REVIEW Vol 1, No 1 (2022): Desember
Publisher : JURNAL DOKTRIN REVIEW

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Abstract

The problem of attitude in traffic is a common phenomenon in big cities in Indonesia. The variety of vehicle traffic and the increasing number of vehicles that are faster than the increase in road infrastructure have resulted in various traffic problems such as congestion and traffic accidents. Several traffic crime problems that commonly occur in Indonesia are caused by traffic driving violations without paying attention to traffic signs, causing traffic accidents or disturbing fellow road users. UU no. 22 of 2009 regulates matters regarding traffic crimes as regulated in Chapter XX. The settlement of traffic accident criminal cases by the police through the Restorative justice system is a guideline in the peace process outside the judiciary by using mediation in achieving justice. The obstacle in implementing the concept of restorative justice faced by the police is the absence of consent from the victim or family to forgive the perpetrator.
Action competence for sustainability instrument base on spirituality for prospective science teacher Husamah, Husamah; Suwono, Hadi; Nur, Hadi; Sabilah, Fardini
International Journal of Evaluation and Research in Education (IJERE) Vol 13, No 6: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v13i6.30173

Abstract

Science teachers are the main actors in developing students’ action competence for sustainability (ACS) in the future. Considering that the majority of teachers and prospective science teachers have a spiritual foundation, the spiritual aspect should be an integral part of the ACS. Therefore, an instrument is needed that can measure the level of ACS that includes aspects of spirituality in it. This study was designed to develop and validate an instrument for prospective science teacher in in the form of action competence for sustainability instrument base on spirituality (ACSIS). The instrument was developed based on previous research findings and focus group discussions involving eleven experts. The factors and internal consistency were examined by involving 634 prospective science teachers in Indonesia. Validity and reliability were tested using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). This study’s results showed 21 questionnaire items (four dimensions) with acceptable internal validity and consistency. The ACSIS is recommended to measure the level of ACS for prospective science teachers, specifically in Indonesia, and countries that have the same characteristics of educational problems and potential.
Pelatihan Pengambangan Bahan Ajar Kimia Berbasis Blended Learning Menggunakan Media Pembelajaran Quizizz dan Mentimeter bagi Guru SMA di Kota Malang Pramesti, Indah Nur; Ciptawati, Endang; Nur, Hadi; Sumari, Sumari; Aldwinarta, Farrel Hafiz; Fauziah, Putri Nanda; Nareswari, Tsalis Jauza
Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Vol 7, No 2 (2023): Vol 7, No 2 (2023)
Publisher : Yogyakarta State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpmmp.v7i2.58029

Abstract

E-learning yang dipadukan dengan pembelajaran konvensional merupakan definisi blended learning dan merupakan salah satu metode pembelajaran yang sering diterapkan pasca pandemi Covid-19. Blended learning disertai dengan media pembelajaran yang menarik akan mampu meningkatkan hasil belajar siswa. Kegiatan layanan ini bertujuan untuk menarik guru agar terampil dalam menggunakan Quizizz dan Mentimeter, platform survei online dan presentasi interaktif. Hasil pelatihan menunjukkan respon positif dari peserta terhadap media pembelajaran yang direkomendasikan. Sebanyak 63% peserta menyatakan pelatihan ini sangat bermanfaat, 37% peserta menyatakan metode blended learning sangat efektif dilaksanakan pasca pandemi Covid-19, dan 56% peserta menyatakan penggunaan aplikasi media pembelajaran online Quizizz dan Mentimeter membantu dalam pelaksanaan blended learning.
Peran Perguruan Tinggi dalam Mendukung Kompetensi Riset Siswa MAN 2 Kota Malang: Studi Kolaboratif dengan Universitas Negeri Malang Suharti, Suharti; Nur, Hadi; Suryani, Suci Elya Intan; Dwija L, Sutandyo; Azizah, Hanifatul
Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS) 2024: Membangun Masyarakat Berkelanjutan melalui Penerapan Teknologi di Era Society 5.0
Publisher : Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS)

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Abstract

Penelitian dan pengembangan dalam bidang ilmu pengetahuan, teknologi, seni, dan budaya sangat penting untuk mendorong kemajuan suatu negara. Peningkatan peringkat publikasi ilmiah Indonesia, sebagaimana tercatat dalam Scimago Journal & Country Rank tahun 2023, menunjukkan kemajuan signifikan dalam kontribusi penelitian dengan menempati urutan 19 dunia. Salah satu upaya Pemerintah Indonesia dalam meningkatkan penelitian Indonesia yakni dengan menyelenggarakan ajang Olimpiade Penelitian Siswa Indonesia (OPSI). Olimpiade ini bertujuan mewujudkan visi Kementerian Pendidikan, Kebudayaan, Riset, dan Teknologi 2020-2024 untuk menciptakan generasi Pelajar Pancasila yang unggul dalam berpikir kritis, kreatif, dan berakhlak mulia. Namun, MAN 2 Kota Malang sebagai salah satu peserta OPSI menghadapi kendala terbatasnya fasilitas laboratorium dan tenaga ahli yang kompeten di bidang bioteknologi dan material maju. Universitas Negeri Malang (UM) melalui UPT Laboratorium Terpadu menawarkan solusi dengan menyediakan fasilitas laboratorium canggih serta tenaga ahli sebagai pembimbing siswa MAN 2 Kota Malang dalam pengembangan riset. Kegiatan pengabdian ini bertujuan untuk meningkatkan kualitas pendidikan di MAN 2 Kota Malang melalui penyediaan sarana riset yang memadai, pembimbingan riset, serta peningkatan kapasitas guru dalam pengolahan data dan penulisan karya ilmiah. Hasil kegiatan menunjukkan peningkatan minat siswa dalam sains, pemahaman konsep riset modern seperti SC-XRD, serta kolaborasi yang berkelanjutan antara UM dan MAN 2 Kota Malang dalam pengembangan pendidikan berbasis riset. Kata kunci—riset, fasilitas, kolaborasi, kompetensi siswa, OPSI
Pengaruh Program Sains Camp dalam Meningkatkan Minat dan Keterampilan Praktis Siswa MAN 2 Kota Malang terhadap Sains Nur, Hadi; Faridah, Nur; Dewi, Atika Sari Puspita; Agustina, Yuli; Azizah, Hanifatul
Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS) 2024: Membangun Masyarakat Berkelanjutan melalui Penerapan Teknologi di Era Society 5.0
Publisher : Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS)

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Abstract

Dalam era modern, sains memiliki peran penting dalam inovasi dan menyelesaikan masalah global. Namun, minat siswa terhadap sains mengalami penurunan, terutama di MAN 2 Malang, akibat kurangnya fasilitas laboratorium dan pendekatan pembelajaran yang kurang relevan. Pelaksanaan kegiatan Sains Camp di MAN 2 Kota Malang bekerja sama dengan Universitas Negeri Malang bertujuan untuk meningkatkan minat dan keterampilan praktis siswa dalam bidang sains melalui pembelajaran yang inovatif dan kolaboratif. Kegiatan ini dirancang sebagai bentuk kemitraan pendidikan untuk menjembatani kesenjangan antara teori yang diajarkan di sekolah dengan aplikasi praktis di lapangan. Metode yang digunakan dalam kegiatan ini mencakup eksperimen langsung, diskusi kelompok, dan pemecahan masalah secara kolaboratif, yang memungkinkan siswa untuk lebih memahami konsep-konsep sains melalui pengalaman langsung. Pengabdian ini menggunakan pendekatan kualitatif dengan metode observasi untuk mengevaluasi dampak dari kegiatan Sains Camp terhadap minat dan keterampilan praktis siswa. Hasil pengabdian menunjukkan adanya peningkatan signifikan dalam minat siswa terhadap pelajaran sains, terutama dalam hal pengembangan keterampilan laboratorium dan kemampuan analitis. Selain itu, kemitraan antara MAN 2 Malang dan Universitas Negeri Malang memberikan dampak positif terhadap mutu pembelajaran di kedua institusi, menciptakan suasana pembelajaran yang lebih interaktif dan relevan dengan tantangan sains di dunia nyata. Kata kunci—sains, MAN 2 Kota Malang, minat siswa
Oxidation of Styrene to Benzaldehyde Using Environmentally Friendly Calcium Sulfate Hemihydrate-Supported Titania Catalysts Koesnarpadi, Soerja; Wirawan, Teguh; Nurhadi, Mukhamad; Wirhanuddin, Wirhanuddin; Prananto, Yuniar Ponco; Nazarudin, Nazarudin; Degirmenci, Volkan; Lai, Sin Yuan; Nur, Hadi
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 4 Year 2024 (December 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20224

Abstract

This paper presents the synthesis and characterization of calcium sulfate hemihydrate (CSH)-supported titania (TiO2) catalysts and their application in the environmentally friendly oxidation of styrene to benzaldehyde using hydrogen peroxide (H2O2) as the oxidant. The study explores the catalyst's structure-activity relationship, emphasizing the importance of mesoporous materials for enhanced catalytic performance. The CSH-Titania catalysts were synthesized using fish bone-derived CSH as a support, which aligns with green chemistry principles. Characterization techniques such as Fourier Transform Infra Red (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), and Brunauer-Emmett-Teller (BET) surface area analysis confirmed the successful impregnation of titania and its catalytic efficiency. The catalysts exhibited high selectivity for benzaldehyde, achieving up to 49.45% conversion of styrene, with benzaldehyde as being the main product. The research highlights that the catalyst’s performance decreased after calcination due to a reduced surface area and pore volume, yet it maintained recyclability across three cycles with minimal  lose  in selectivity loss. Overall, this study introduces a cost-effective and sustainable approach to styrene oxidation, demonstrating the potential for industrial application in producing high-value chemicals with minimal environmental impact. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Investigating Learners' Conceptual Progression on pH of Solution, Acid-Base Titration, and Buffer Solutions Santa, Eldat Wira; Sumari, Sumari; Nur, Hadi; Setiawan, Nur Candra Eka; Muntholib, Muntholib
Tadris: Jurnal Keguruan dan Ilmu Tarbiyah Vol 9 No 2 (2024): Tadris: Jurnal Keguruan dan Ilmu Tarbiyah
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/tadris.v9i2.23169

Abstract

This study aims to explore the development of understanding of the concepts of pH, acid-base titration, and buffer solutions among 11th-grade students and 2nd- and 4th-semester university students in chemistry education. It employs a cross-sectional design using open-ended questions and interview guidelines to collect data from 153 11th-grade students, 30 second-semester university students, and 40 fourth-semester university students. The open-ended questionnaire consists of 9 items (2 questions on the pH of solutions, 4 questions on acid-base indicators and titration, and 3 questions on buffer solutions and salt hydrolysis) on a continuous scale, with an Aiken's kappa validity of 0.61 (substantial agreement) and a Cronbach's Alpha reliability (KR-20) of 0.75 (acceptable). The results indicate that scientific understanding of pH concepts, such as the pH of solutions, acid-base titration, and buffer solutions, improves with education. However, comprehension of complex concepts remains low. The study's implications highlight the need for curriculum development and the selection and implementation of learning strategies that enable students to learn in a structured, gradual, and coherent manner. Curriculum development should map out subject matter, distinguish essential from non-essential content, and organize material from simple and essential topics to more complex and non-essential ones.
Co-Authors Aldwinarta, Farrel Hafiz Azizah, Hanifatul Ciptawati, Endang Degirmenci, Volkan Dewi, Atika Sari Puspita Didik Prasetyoko Dwija L, Sutandyo Fardini Sabilah Fauziah, Putri Nanda Garaika Hadi Suwono Hamzah Fansuri Husamah Husamah Indah Nur Pramesti Lai, Sin Yuan Maria Ulfa Mukhamad Nurhadi, Mukhamad Muntholib Nareswari, Tsalis Jauza Nazarudin Nur Faridah, Nur Ratna Ediati Sahari, Alpi Salasiah Endud Santa, Eldat Wira Setiawan, Nur Candra Eka Soerja Koesnarpadi Sumari Sumari Suryani, Suci Elya Intan Teguh Wirawan, Teguh Wirhanuddin, Wirhanuddin Yuli Agustina, Yuli Yuniar Ponco Prananto Zainab Ramli Zainab Ramli