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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik International Journal of Educational Review, Law And Social Sciences (IJERLAS) Proceedings Series on Physical & Formal Sciences Jurnal Pengabdian, Riset, Kreativitas, Inovasi, dan Teknologi Tepat Guna (Parikesit)
Teguh Ariyanto
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Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mechanical Engineering Public Health Social Sciences Other

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DEGRADASI LIMBAH ZAT WARNA DENGAN KATALIS KARBON AKTIF TEREMBAN OKSIDA BESI Shinta Amelia; Wahyudi Budi Sediawan Sediawan; Imam Prasetyo; Teguh Ariyanto
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2017): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 8 2017
Publisher : Prosiding SNST Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (312.582 KB)

Abstract

Limbah zat warna dapat memberikan dampak negatif bagi kesehatan dan lingkungan. Metode adsorpsi yang dianggap paling efektif untuk mengelola limbah zat warna memiliki kekurangan karena sistem ini hanya mentransfer limbah ke bahan padat dan adsorben tidak dapat di recycle. Pada studi ini, reaksi degradasi katalitik heterogen zat warna dengan sistem reaksi Fenton dilakukan untuk mengatasi limitasi metode adsorpsi. Katalis heterogen oksida besi/karbon dibuat melalui dua tahapan, yaitu impregnasi garam besi dengan metode incipient wetness dan kalsinasi pada suhu 300 °C. Loading oksida besi divariasikan dari 0.5 sampai 2% massa. Reaksi degradasi katalitik zat warna dengan katalis oksida besi/karbon dilakukan pada sistem batch dengan 200 ml larutan metilen biru (konsentrasi 20 ppm) dan penambahan 5 ml H2O2 50%v/v. Uji adsorpsi tanpa reaksi katalitik dilakukan sebagai pembanding. Hasil penelitian menunjukkan bahwa degradasi katalitik lebih efektif 31.3% dibandingkan proses adsorpsi. Degradasi metilen biru meningkat dengan naiknya katalis loading dan hasil dekolorisasi tertinggi sebesar 0.365 mmol/(gr katalis) dengan katalis 2% oksida besi/karbon. Studi ini menunjukkan bahwa degradasi katalitik dapat menjadi metode yang efektif untuk mengatasi limbah zat warna.Kata kunci: karbon aktif; oksida besi; oksidasi katalitik 
Peningkatan Pengetahuan, Sikap, dan Tindakan Cuci Tangan Enam Langkah WHO Siswa SD Negeri 1 Iroyudan: Studi One Group Pretest-Posttest Teguh Ariyanto; Arief Budiarto; Aninstya, Mayang Rachma
Jurnal Pengabdian, Riset, Kreativitas, Inovasi, dan Teknologi Tepat Guna Vol 1 No 2 (2023): November
Publisher : Direktorat Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/parikesit.v1i2.9551

Abstract

One effort to reduce infectious diseases by the National Medium-Term Development Plan in the health sector for the 2020-2024 period is through the Handwashing with Soap Program (HWWS). This program aimed to minimize disease transmitted through hands, especially among schoolchildren. Therefore, effective and proper promotion about HWWS is needed. This research aims to determine the differences before and after the intervention related to knowledge, attitudes, and skills of HWWS based on the WHO six-step handwashing guidelines. This study is a pre-experimental research with a one-group pretest-posttest study design conducted on students in grades 4, 5, and 6 at SDN 1 Iroyudan. The independent variable is health promotion through presentations, posters, and direct demonstrations, while the dependent variables are students' knowledge, attitudes, and skills related to HWWS. Univariate analysis was conducted to determine the frequency distribution and percentage of each variable. The normality of research data was determined by the Shapiro-Wilk test. Bivariate analysis was performed using the Paired T-test if the research data had a normal distribution. If the research data did not have a normal distribution, the Wilcoxon Signed Ranks Test was used. The research results are means with a 95% confidence interval. There were 39 students from grades 4, 5, and 6 at SDN 1 Iroyudan, consisting of 24 male students and 15 female students. The mean pretest knowledge score of students was 17.15, while after the intervention, it became 19.56 (p-value 0.000). The mean pretest attitude score of students was 17.10, while after the intervention, it became 19.49 (p-value 0.000). The mean pretest skill score of students was 5.85, while after the intervention, it became 11.85 (p-value 0.000). This indicates a statistically significant difference before and after the intervention in the mean values of knowledge, attitudes, and skills of students related to HWWS according to WHO.
LEGAL CERTAINTY OF BPJS KESEHATAN CARD REQUIREMENTS IN THE TRANSFER OF LAND RIGHTS Teguh Ariyanto; Gunawan Djajaputra
International Journal of Educational Review, Law And Social Sciences (IJERLAS) Vol. 3 No. 5 (2023): September
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijerlas.v3i5.1012

Abstract

This article aims to analyze and examine the legal certainty of the prerequisites for the BPJS card in transferring land rights and the legality of transferring land rights without attaching a BPJS card after Presidential Instruction No. 1 of 2022. This article uses a normative legal research method. The nature of the research is descriptive analysis. The primary legal materials used in this writing are the 1945 Constitution of the Republic of Indonesia, Law Number 5 of 1960 concerning Basic Agrarian Regulations, Government Regulation Number 24 of 1997 concerning Land Registration, and Government Regulation of the Republic of Indonesia Number 18 of 2021 concerning Management Rights, Land Rights, Flats Units, and Land Registration and Presidential Instruction Number 1 of 2022 concerning Optimization of the Implementation of the National Health Insurance Program. As for secondary legal materials in the form of publications on law including text books, legal dictionaries, legal journals, and comments on court decisions. The tertiary legal materials used in this study are the Big Indonesian Dictionary and the Legal Dictionary. The results of the study show that legal certainty is a prerequisite for BPJS cards in transferring land rights, namely the government does not actualize aspects of legal certainty as prerequisites for BPJS cards in transferring land rights where legal regulations must be implemented consistently and consequentl.
Sintesis Graphene Oxide (GO) dari Grafit Limbah Baterai dengan Modifikasi Metode Hummer Atika Putri Karina; Chandra Wahyu Purnomo; Teguh Ariyanto
Proceedings Series on Physical & Formal Sciences Vol. 9 No. 1 (2026): Seminar Nasional Teknik (SENATEK)
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pspfs.v9i1.2164

Abstract

Graphene oxide (GO) is a carbon-based material with great potential for gas adsorption applications due its large surface area and abundant oxygen-containing functional groups. This study aims to synthesize GO from spent lithium-ion battery graphite through an enviromentally friendly modification of the Hummer method. The modification involved varying the intercalation media using hydrogen peroxide (H2O2), sulfuric acid (H2SO4) and their combination to evaluate their effect on the oxidation of potassium permanganate (KMnO4), heating, and post-reduction with H2O2. The structural evolution of graphite and the obtained GO was analyzed using Raman spectroscopy, where the ID/IG ratio was used an indicator of defect density. Result revealed that was battery graphite exhibited a higher degree of structural disorder than commercial graphite, with an increase ID/IG ratio from 0.12 to 0.32. After oxidation the ID/IG ratio increased to 0.33 for GO synthesized with mixed media (H?SO? + H?O?) (GO-mix), 0.94 for GO synthesized with H?SO? (GO-HM), and 1.36 for GO synthesized with H?O? only (GO-PT H2O2). The highest ratio observed in GO-PT H?O? indicates the most effective oxidation and the formation of abundant oxygen functional groups without KMnO? degradation. Therefore, using H?O? as a single intercalation agent offers a simple, efficient, and sustainable approach for producing high-quality graphene oxide from waste battery graphite.
Co-Authors Aninstya, Mayang Rachma Arief Budiarto Atika Putri Karina Chandra Wahyu Purnomo Gunawan Djajaputra Imam Prasetyo Shinta Amelia Wahyudi Budi Sediawan Sediawan