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All Journal International Journal of Advances in Applied Sciences JURNAL KIMIA SAINS DAN APLIKASI TELKOMNIKA (Telecommunication Computing Electronics and Control) Tadris: Jurnal keguruan dan Ilmu Tarbiyah Agrointek Eksergi: Chemical Engineering Journal Bulletin of Chemical Reaction Engineering & Catalysis Jurnal IPTEK KOVALEN: Jurnal Riset Kimia Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan J-PEK (JURNAL PEMBELAJARAN KIMIA) JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Al-Kimia Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Chemistry Indonesian Journal of Chemical Research Prosiding Seminar Nasional Sains dan Teknologi Terapan Jurnal Fisika : Fisika Sains dan Aplikasinya Fullerene Journal of Chemistry Jurnal Karinov Stannum : Jurnal Sains dan Terapan Kimia Jurnal Ilmiah Farmako Bahari Indonesian Journal for Social Responsibility Jurnal Graha Pengabdian Reforma: Jurnal Pendidikan dan Pembelajaran JoEMS : Journal of Education and Management Studies Jurnal Ilmiah Ibnu Sina (JIIS): Ilmu Farmasi dan Kesehatan Journal of Disruptive Learning Innovation (JODLI) Journal of Engineering Science and Technology Jurnal Teknik Kimia dan Lingkungan Jurnal MIPA dan Pembelajarannya Bulletin of Chemical Reaction Engineering & Catalysis Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS) Jurnal Terapan Pendidikan Dasar dan Menengah Jurnal Akademika Kimia Frontier Advances in Applied Science and Engineering Jurnal Konstatering
Sumari Sumari
Universitas Negeri Malang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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Organic Wastewater Treatment using Two-dimensional Graphene-based Photocatalysts: A Review Kelvert Kong; Zhiying Zhu; Mukhamad Nurhadi; Sumari Sumari; Siew Fan Wong; Sin Yuan Lai
Bulletin of Chemical Reaction Engineering & Catalysis 2023: BCREC Volume 18 Issue 3 Year 2023 (October 2023)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20029

Abstract

Photocatalysts have gained enormous attention in water decontamination due to their economic viable and intriguing properties. Recently, graphene-based semiconductors have become the sparkling star on the horizon of material science. The coupling of two-dimensional graphene and its derivatives (graphene oxide and reduced graphene oxide) with semiconductors could effectively enhance the efficiency in organic wastewater degradation under light irradiation. Hence, a collective study on this topic is necessary.  Four types of graphene-based semiconductors, viz. titania, zinc oxide, cadmium sulfide, and bismuth oxychloride, are explored. Besides, synthesis approaches and properties of these photocatalysts are elucidated too. We hope this review could enable us to rationally design and harness the morphology, structure and electronic properties of these advanced materials. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
Catalytic Performance of TiO2–Carbon Mesoporous-Derived from Fish Bones in Styrene Oxidation with Aqueous Hydrogen Peroxide as an Oxidant Mukhamad Nurhadi; Ratna Kusumawardani; Teguh Wirawan; Sumari Sumari; Sin Yuan Lai; Hadi Nur
Bulletin of Chemical Reaction Engineering & Catalysis 2021: BCREC Volume 16 Issue 1 Year 2021 (March 2021)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.16.1.9729.88-96

Abstract

The catalytic performance of titania-supported carbon mesoporous-derived from fish bones (TiO2/CFB) has been investigated in styrene oxidation with aqueous H2O2. The preparation steps of (TiO2/CFB) catalyst involved the carbonization of fish bones powder at 500 °C for 2 h. followed by impregnation of titania using titanium(IV) isopropoxide (500 µmol) precursor, and calcined at 350 °C for 3 h. The physical properties of the adsorbents were characterized using Fourier transform infrared, X-ray diffraction (XRD), Scanning electron microscopy with energy dispersive X-ray (SEM-EDX), and nitrogen adsorption-desorption studies. The catalytic test was carried out using styrene oxidation with H2O2 as an oxidant at room temperature for 24 h. Its catalytic activity was compared with Fe2O3/CFB, CuO/CFB, TiO2, and CFB catalysts. It is demonstrated that the catalytic activity of TiO2/CFB catalyst has the highest compared to Fe2O3/CFB, CuO/CFB, TiO2, and CFB catalysts in the oxidation of styrene with styrene conversion ~23% and benzaldehyde selectivity ~90%. Kinetics of TiO2/CFB catalyzed oxidation of styrene has been investigated and mechanism for oxidation of styrene has been proposed. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA   License (https://creativecommons.org/licenses/by-sa/4.0). 
Modification and Application Study of Activated Natural Zeolite for the Treatment of Liquid Waste from Chemical Laboratory Liqanatul Putri Sholikah; Sumari Sumari; Yuneta Dwi Yunisari
Jurnal Kimia Sains dan Aplikasi Vol 26, No 9 (2023): Volume 26 Issue 9 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.26.9.332-343

Abstract

Natural zeolite from Malang Regency is a raw material that can be used as an adsorbent for heavy metal waste. However, this natural zeolite needs activation and optimization to be utilized maximally as an adsorbent. This study was conducted for both physical and chemical activation of natural zeolite. Characterization results of XRD indicated that the natural zeolite possesses crystalline phases and is of the mordenite type. Based on the XRF results, the Si/Al ratio increased from 5.768 to 6.119 after activation. Based on the characterization results using the BET method with SAA analysis, the surface area of non-activated natural zeolite was determined to be 20.8045 m²/g, while activated natural zeolite had a surface area of 137.8196 m²/g. Results of the adsorption study in treating liquid laboratory waste using simulated Pb and Cr metal wastes demonstrated that activated natural zeolite performed more effectively as an adsorbent than non-activated natural zeolite. The adsorbent’s optimum mass was 0.3 grams, resulting in an adsorption percentage of 97.43% for Pb and 97.56% for Cr, with a contact time of 30 minutes at pH 6. The adsorption kinetics of Pb and Cr metals were described using a pseudo-second-order rate equation. The adsorption of Pb and Cr was depicted using the Langmuir equation, indicating the monolayer formation on the homogenous adsorbent surface during the adsorption process. The activated natural zeolite has the potential to be employed as an independent adsorbent in the treatment of heavy metal waste.
Pelatihan Pembuatan Hand Sanitizer bagi Takmir Masjid Nurul Huda untuk Mencegah Penyebaran COVID-19 Yana Fajar Prakasa; Sumari Sumari; Aman Santoso; Muhammad Roy Asrori; Sinta Nur Laila
Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS) Inovasi IPTEKS untuk Meningkatkan Peran Serta Masyarakat Menuju Indonesia Mandiri
Publisher : Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS)

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

Abstract

COVID-19 yang kini menjadi pandemi global membuat banyak orang melakukan tindakan preventif. Salah satu cara untuk mencegahnya yaitu mencuci tangan menggunakan sabun dan menggunakan hand sanitizer. Tujuan pelatihan ini untuk memberikan pengetahuan kepada masyarakat tentang cara pembuatan hand sanitizer pada masa pandemic COVID-19. Mitra pada kegiatan pengabdian ini adalah Takmir Masjid Nurul Huda Kota Blitar. Karenaketerbatasan hand sanitizer serta untuk memanfaatkan waktu di rumah, masyarakat dapat membuat hand sanitizer sendiri. Kegiatan pelatihan ini dilakukan dengan tiga tahapan, yaitu persiapan, pelaksanaan, dan evaluasi. Hasil dari kegiatan ini menunjukkan bahwa mitra kegiatan ini mampu membuat hand sanitizer sendiriKata kunci : COVID-19, Hand Sanitizer, Masjid, Takmir
Diversifikasi produk pangan berbasis sumber daya lokal jantung pisang kepok (Musa paradisiaca) melalui karakteristik fisikokimia Jacky Anggara Nenohai; Ima Rosyida; Nur Indah Agustina; Yudhi Utomo; Sumari Sumari
AGROINTEK Vol 18, No 1 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i1.15339

Abstract

The banana plant that is still underutilized compared to the fruit part is the heart of the banana. Even though the heart of the banana has many benefits and nutritional content that is good for health. Seeing the potential of the heart of the banana can improve public health, so food diversification efforts such as flour and substitutes for the basic ingredients of food to produce new forms of product innovation, so research was carried out to test its content, which aims to inform the public that the heart of the banana can be beneficial for health in processing into flour. This research was carried out in March-April 2022 at the Chemistry Education Laboratory of Nusa Cendana University, Kupang. There are four stages in this study, including 1) Manufacture of the heart of banana flour; 2) Proximate Test of the heart of banana flour; 3) Diversification of products based on the heart of banana flour, 4) Organoleptic test of products based on the heart of banana flour on 52 panelists. The results of research on the manufacture of banana heart flour are substituents of flour that have good nutritional content with relatively good character if used as a substitute for wheat flour because many parameters meet the quality requirements of wheat flour, namely the physical characteristics of banana heart flour meet the test requirements for shape. In contrast, the aroma, color, and taste in accordance with the characteristics of the nutritional content meet the moisture content proteins, fats, and carbohydrates. In contrast, the ash content does not complete because the mineral content in each ingredient is different and the manufacture of wheat flour. The result of the diversification of the products made, namely the Genital Widow Cake / Monde chips made from banana heart flour, are also included in the excellent category where the aroma, taste, and acceptance of the product are accepted in the community.
Pengolahan Limbah Serat Fiber sebagai Substitusi Material Pengisi Media Tanam Organik di Mitra WBS Fiberglass Poncokusumo Asrori, Muhammad Roy; Santoso, Aman; Sumari, Sumari; Prakasa, Yana Fajar; Mahmudah, Siti Nur
Indonesian Journal for Social Responsibility Vol. 5 No. 01 (2023): June 2023
Publisher : LPkM Universitas Bakrie

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/ijsr.v5i01.177

Abstract

Micro-enterprises in the community still need a helping hand in the form of a service program from the campus. It is known that the micro-enterprise community belongs to the lower middle class, so there is still a lack of interest in seeking information/literacy and this results in the absence of business development in the future in a better direction. In Karanganyar Village, Poncokusumo, Malang, a fiber business was found in the manufacture of tools made of plastic, this business has been running for 3 years and there is still no high enough development. In addition, another problem is the problem of fiber waste that has not been utilized at all. There was no processing or conversion into useful and economically valuable materials. The solution offered is the manufacture of organic pots/growing media. The method of implementing this service used three stages, namely preparation, implementation, and reporting. The data collected in the form of documentation, observation, and the results of filling out the respondent's questionnaire which was then analyzed descriptively qualitatively. The results of the service showed that organic growing media from fiberglass can be applied and attract partners' interest. Knowledge of occupational health and safety has enthusiastically educated partners. The results of the partner satisfaction questionnaire showed that this service activity has a very satisfied response category of 65.7% and a satisfied response of 34.3%. So, WBS fiberglass partners have received, supported, appreciated, and followed this service well.
PEMANFAATAN MEDIA PEMBELAJARAN ULAR TANGGA BERBANTUAN KARTU SOAL DAN STIKER JAWABAN PADA MATERI TANAH DAN KEBERLANGSUNGAN KEHIDUPAN Putri Hapsari, Mamila; Sumari, Sumari; Fitriyah, Ida
Jurnal MIPA dan Pembelajarannya Vol. 3 No. 8 (2023): Agustus
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um067v3i82023p1

Abstract

Guru yang menyampaikan materi pelajaran dengan metode konvensional menyebabkan peserta didik pasif saat pembelajaran. Tujuan dari penelitian ini adalah untuk mengkaji bagaimana permainan ular tangga digunakan dalam materi Tanah dan Keberlangsungan Kehidupan. Penelitian ini adalah penelitian kualitatif dengan metode deskriptif. Hasil dari penelitian ini menunjukkan bahwa penggunaan media pembelajaran ular tangga berbantuan kartu soal dan stiker jawaban dapat meningkatkan semangat belajar anak. Berdasarkan pengamatan, wawancara, dan dokumentasi peserta didik bersemangat, tidak bosan, dan aktif saat pembelajaran berlangsung. Peserta didik dapat memahami dan mengingat materi tentang Tanah dan Keberlangsungan Kehidupan
Building lower secondary school students’ interest and motivation towards science: The role of students’ worksheet in particles of substance and living organism Kinanthi, Bilqis Rahma; Habiddin, Habiddin; Sumari, Sumari; Suwasono, Purbo; Santosa, Santosa
Journal of Disruptive Learning Innovation (JODLI) Vol 4, No 2 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um072v4i22023p116-121

Abstract

Science learning that only focuses on the assignment and exposure to material can cause students to be less interested and less motivated to learn science. One example of a student's worksheet (Lembar Kerja Peserta Didik in Indonesian, LKPD)  that effectively attracts students' learning interest is using the LKPD format in comics because it combines visual elements with words. The content of comics can be arranged based on scientific events and dialogues from everyday life, helping students understand the relationship between science and the context of everyday life. This study aims to determine the role of comic-based LKPD in attracting interest and motivation to learn science for grade 9B students of SMPN 11 Malang. This research is included in quantitative descriptive research using survey methods. The data collection for this study was done through a questionnaire distributed through Google Forms with a Likert interval scale. The results of the questionnaire data analysis show that 81.83% of students strongly agree that comic-based LKPD attracts their interest and motivation to learn.
Analysis of Blended Learning Model on Digital Literacy Skills Sari, Maya; Muntholib, Muntholib; habiddin, Habiddin; Sumari, Sumari; Rahayu, Sri
Journal of Disruptive Learning Innovation (JODLI) Vol 5, No 2 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um072v5i22024p103-113

Abstract

Blended learning is the same as hybrid learning, which combines the concept of traditional school teaching with online learning through personalized instruction for an entire group of students. The Systematic Literature Review follows the structure of the PRISMA framework (Preferred Reporting Items for Systematic Review and Meta Analysis). The literature search was carried out in the web database eric.go.ed under the keyword “Digital Literacy”. Based on the extraction, 40 articles were selected for analysis. The following results were obtained: (1) The research trend on the impact of digital skills on blended learning is still dominated by the social science field; (2) The inclusion of digital devices in blended learning is dominated by the use of LMS (Learning Management System); several studies have reported combining the use of LMS with metaverse devices such as augmented reality; (3) The analysis of the differences in digital skills before and after the Covid-19 pandemic can be seen based on the use of digital platforms.
Biodiesel Characterization Study from Castor Oil (Jatropha Curcas L) with CaO/K2O Catalyst Santoso, Aman; Sumari, Sumari; Asrori, Muhammad Roy; Januarti, Wenny
Jurnal IPTEK Vol 27, No 2 (2023)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2023.v27i2.4188

Abstract

Biodiesel is still being developed as a renewable fuel to replace a diesel fuel. Biodiesel production of castor oil has high potential because the oil did not compete with foods. Furthermore, a transesterification process can be optimized by heterogeneous base catalysts. Thus, this study aims to: (1) synthesize CaO/K2O catalysts to be used in the transesterification process, (2) synthesize biodiesel of castor oil and characterize it according to SNI 7182:2015, and (3) study the effect of CaO/K2O variations on biodiesel product. This laboratory experimental research was carried out in the following stages: (1) characterization of castor oil, (2) esterification, (3) preparation of CaO/K2O catalyst, (4) transesterification, and (5) characterization of the synthesized methyl ester. The results showed that the characterization of castor oil included a density of 1.074 g/mL, an acid number of 9.5 mg/g, a free fatty acid (FFA) of 5.09%, and a viscosity of 701 cSt. Stratified esterification and transesterification showed a significant effect on reducing FFA, so the characterization of the transesterified methyl ester from the best catalyst variations (CaO/K2O 1:2) included a density of 1.016 g/mL, an acid number of 1.1 mg/g, FFA content of 0.58%, moisture content of 1.1%, viscosity 43.55 cSt, and refractive index (25) of 1.466.
Co-Authors A. Alif Mardianto Adilah Aliyatulmuna Agus Budianto Agustina, Nur Indah Aldwinarta, Farrel Hafiz Aman Santos Aman Santoso Amanatin, Alfitia Dwi Andyka Medarda Pradana Annida Elfiana Citra Ardianty Antonia, Vonny Anugrah Ricky Wijaya Ciptawati, Endang Cylindrica, Vrisca Bella Dedek Sukarianingsih Devi Indrasari Mustopa Putri Dinar Rachmadika Baharintasari Dinar Rachmadika Baharintasari Dwi Ratna Wulandari Effendy Effendy Eli Hendrik Sanjaya Endang Budiasih Evi Susanti Fadila Abna Swari Faizah, Siti Farashinta Nadia Fauziah, Putri Nanda Fauziatul Fajaroh FITRIYAH, IDA Ganden Supriyanto Habiddin Hadi Nur Hadi Nur Hadi Nur Handoko Darmokoesomo I Wayan Dasna Ida Bagus Suryadarma Ida Bagus Suryadharma Ima Rosyida Indah Nur Pramesti Irsyadatun Ni’mah Izzah, Dewi Jalinan Jacky Anggara Nenohai Januarti, Wenny Kelvert Kong Kinanthi, Bilqis Rahma Lailatul Ilmiyah Lailatur Rizqiyah Liqanatul Putri Sholikah Ma'ruf, Umar Mahmudah, Siti Nur Mardhiyyah, Cut Ainul Mardianto, A. Alif Marfu'ah, Sitti Margaret Pandaleke Mauliana Nursafitri Maya Sari Muhammad Roy Asrori Mukhamad Nurhadi, Mukhamad Muntholib Munzil Nareswari, Tsalis Jauza Nazriati Nazriati dkk. Ni’mah, Irsyadatun Novi Andriani Novi Andriani, Novi Nur Arief Nugroho Nur Indah Agustina Nurin Fitriana Nursafitri, Mauliana Permatasari, Suryani Indah Prakasa, Yana Fajar Priska Yohanita Sodanango Purbo Suwasono Putri Hapsari, Mamila Putri Qori Utami Rachman, Ihsan Budi Ratna Kusumawardani, Ratna Retnosari, Rini Ridwan Joharmawan Rizky, M Rohman Fantusi Rohman Fantusi Ryansyah, Hardi Sakhi, Fillah M. Santa, Eldat Wira Santosa Santosa Setiawan, Nur Candra Eka Sholikah, Liqanatul Putri Siew Fan Wong Sin Yuan Lai Sin Yuan Lai Sinta Nur Laila Siti Marfuah, Siti Siti Marfu’ah SRI RAHAYU Suharti Suryani Indah Permatasari Syafiuddin Syafiuddin Teguh Wirawan Vrisca Bella Cylindrica Wahyu S. Pambudi Wahyu Setyo Pambudi Wele, Amonius Regino Wiwin Dwi Nurpitasari Yahmin Yahmin Yana Fajar Prakasa Yana Fajar Prakasa Yudhi Utomo Yulianto, Andik Yulisya Zuriatni Yuneta Dwi Yunisari Zelen Surya Minata Zhiying Zhu Zuniarto, Ahmad Azrul