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All Journal VALENSI Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Natur Indonesia Jurnal Sains Materi Indonesia Jurnal Penelitian Hasil Hutan Bulletin of Chemical Reaction Engineering & Catalysis Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat The Journal of Pure and Applied Chemistry Research Journal of Mathematical and Fundamental Sciences Jurnal Keramik dan Gelas Indonesia Al-Kimia Chimica et Natura Acta ALCHEMY Jurnal Penelitian Kimia Indonesian Mining Journal Indonesian Journal of Chemistry Jurnal Kartika Kimia Jambura Journal of Chemistry Molekul: Jurnal Ilmiah Kimia Jurnal Penyuluhan Perikanan dan Kelautan Al-Khidmat : Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Penelitian Hasil Hutan Jurnal Keramik dan Gelas Indonesia Asean Journal of Science and Engineering (AJSE) Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Makara Journal of Science Jurnal Kimia dan Rekayasa Jurnal Material dan Energi Indonesia Jurnal Teknologi Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Indonesian Mining Journal al Kimiya : Jurnal Ilmu Kimia dan Terapan ETHOS: Jurnal Penelitian dan Pengabdian kepada Masyarakat
Atiek Rostika Noviyanti
Departemen Kimia, FMIPA, Universitas Padjadjaran
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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PERANAN EDUKASI PENERAPAN PROTOKOL KESEHATAN DAN PERCEPATAN TARGET VAKSINASI DI DESA BANJARAN, KABUPATEN BANDUNG TERHADAP KESADARAN PENCEGAHAN VIRUS COVID-19 Noviyanti, Atiek Rostika
Dharmakarya Vol 12, No 4 (2023): Desember, 2023
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/dharmakarya.v12i4.38532

Abstract

Tingginya jumlah penderita virus Covid-19 di Indonesia, menandakan potensi penularan yang relatif mudah. Kurangnya pemahaman protokol kesehatan di masa pandemi dan rendahnya target vaksinasi diduga menjadi penyebab tingginya penyebaran virus Covid-19 di hampir seluruh kecamatan di Kabupaten Bandung, termasuk Kecamatan Banjaran, khususnya di Desa Banjaran. Hingga akhir tahun 2021 Pemerintah Jabar menargetkan capaian vaksinasi sebesar 70%, namun masih tercatat sebesar 60% untuk Desa Banjaran. Lansia adalah kelompok usia yang belum divaksinasi karena alasan penyakit sistemik, kehalalan vaksin dan efek samping pasca vaksinasi. Program KKN Tematik Kesehatan Masyarakat (PPM) yang diselenggarakan oleh UNPAD-UNICEF yang berlangsung pada tanggal 25 November-25 Desember 2021 melakukan edukasi penerapan protokol kesehatan 3M di SMPN 1 Banjaran dan percepatan sasaran vaksinasi di Desa Banjaran yang bertujuan untuk membantu perangkat desa dan petugas kesehatan Desa Banjaran untuk menekan penyebaran virus Covid-19. Kegiatan PPM dilaksanakan dengan metode hybrid, dengan tiga tahapan kegiatan yang terdiri dari tahap persiapan, tahap pelaksanaan, dan tahap tindak lanjut. Berdasarkan hasil pos test, 77% dari 77 siswa memahami materi protokol kesehatan yang diberikan. Sementara percepatan kegiatan target vaksin tercatat meningkat menjadi sebanyak 36 orang di RW 06 dan sebanyak 67 orang di RW 07.
Yield and Characteristics of Biodiesel as an Impact of Varying Types of Cooking Oil Waste: Rendemen dan Karakteristik Biodiesel sebagai Dampak Variasi Jenis Limbah Minyak Goreng Haryono; Rostika Noviyanti, Atiek; Pramudya Sulaeman, Allyn; Dayu Kusuma, Hersandy; Rahmadona, Nova
Jurnal Kimia dan Rekayasa Vol. 5 No. 1 (2024): Jurnal Kimia dan Rekayasa Edisi Juli 2024
Publisher : Program Studi S1 Teknik Kimia, Fakultas Teknik, Universitas Setia Budi

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

Abstract

Increased activity in various sectors causes fuel demand to increase. Therefore, it is necessary to provide renewable alternative fuels. Biodiesel is an alternative fuel for diesel engines that comes from plant oils, animal fats or waste cooking oil. The aim of this research is to study the effect of the type of cooking oil waste on the yield and characteristics of biodiesel in the synthesis of biodiesel with a homogeneous catalyst. Biodiesel synthesis goes through four stages of treatment, namely: purification of waste cooking oil, esterification with a sulfuric acid catalyst, transesterification with a potassium hydroxide catalyst, and biodiesel purification. The types of cooking oil waste vary based on the waste source, in the form of waste oil from frying pans, seafood and fried chicken. The research results showed that biodiesel from waste cooking oil for frying fritters, chicken and seafood was obtained with successive yields of 54.70; 64.25; and 58.11%. The characteristics of biodiesel from each type of cooking oil waste meet the biodiesel quality requirements based on SNI 7182-2015. AbstrakPeningkatan aktivitas di berbagai sektor menyebabkan kebutuhan bahan bakar semakin meningkat. Oleh sebab itu dibutuhkan ketersediaan bahan bakar alternatif yang bersifat terbarukan. Biodiesel merupakan bahan bakar alternatif untuk mesin diesel yang berasal dari minyak tumbuhan, lemak hewan, ataupun limbah minyak goreng. Tujuan dari penelitian ini adalah mempelajari pengaruh jenis limbah minyak goreng terhadap rendemen dan karakteristik biodiesel pada sintesis biodiesel dengan katalis homogen. Sintesis biodiesel melalui empat tahap perlakuan, yaitu: pemurnian limbah minyak goreng, esterifikasi dengan katalis asam sulfat, transesterifikasi dengan katalis kalium hidroksida, dan pemurnian biodiesel. Jenis limbah minyak goreng divariasikan berdasarkan sumber limbah, berupa limbah minyak dari penggorengan gorengan, seafood, dan ayam goreng. Hasil penelitian menunjukkan bahwa biodiesel dari limbah minyak goreng untuk penggorengan gorengan, ayam, dan seafood diperoleh dengan rendemen berturut-turut sebesar 54,70; 64,25; dan 58,11%. Karakteristik biodiesel dari masing-masing jenis limbah minyak goreng tersebut telah memenuhi syarat mutu biodesel berdasarkan SNI 7182-2015.
Evaluation of Mineral-Based Zn-Doped Hydroxyapatite as a Photocatalyst for Methylene Blue Degradation Nisrina, Aniqa; Karya, Teguh; Halim, Riyan; Murniati, Anceu; Hardian, Arie; Gustaman Syarif, Dani; Rostika Noviyanti, Atiek; Jasmansyah, Jasmansyah; Reza, Muhammad
The Journal of Pure and Applied Chemistry Research Vol. 13 No. 3 (2024): Edition September-December 2024
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2024.013.03.7908

Abstract

Methylene blue is a synthetic dye known to be harmful to aquatic environments. Therefore, efforts are needed to minimize methylene blue waste. This study focuses on degrading methylene blue through photocatalysis, a method chosen for its affordability and ease of use. The photocatalyst used is hydroxyapatite (HAp) derived from limestone (CaCO3) doped with zinc ions (Zn2+). This combination enhances the efficiency of breaking down dye molecules in liquid waste. The photocatalytic performance was tested under three variations: solution concentration, contact time, and pH, using an 8-watt UV lamp for specified durations. Solution absorbance was measured using a Shimadzu 1800 UV-Vis spectrophotometer. Optimal conditions for methylene blue photodegradation by Zn-doped HAp were achieved at 67.2% efficiency for 5 ppm concentration, 16.125% for 120 minutes of irradiation, and 34.86% at pH 7. Additionally, the study included an analysis of adsorption isotherm models for concentration variation and kinetic adsorption analysis for time variation. The Langmuir and Temkin adsorption isotherm models were found to be most suitable with an R2 = 1. The photodegradation kinetics model followed pseudo second-order kinetics with an R2 = 0.990.
EVALUATION OF MINERAL-BASED HYDROXYAPATITE/ZnO COMPOSITES AS PHOTOCATALISTS FOR METHYLEN BLUE DEGRADATION Hardian, Arie; Nafisah, Aulia Zakiyatun; Karya, Teguh; Halim, Riyan; Murniati, Anceu; Syarif, Dani Gustaman; Noviyanti, Atiek Rostika; Nurhayati, Mita; Jasmansyah, Jasmansyah; Reza, Muhammad
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol 11, No 2 (2024): al Kimiya: Jurnal Ilmu Kimia dan Terapan
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v11i2.37886

Abstract

The use of dyes in the textile industry has increased significantly, raising concerns about their potential to pollute the environment and harm human health. Methylene blue is a widely used synthetic dye, necessitating effective methods for its degradation. Photodegradation is a promising approach to decompose dyes into simpler, less harmful compounds. In this study, hydroxyapatite combined with ZnO was employed as a photocatalyst material to enhance photocatalytic performance. The research aims to degrade methylene blue using a Hydroxyapatite/ZnO (HAp/ZnO) nanocomposite through photodegradation. The optimization of the photodegradation process was investigated by varying irradiation time, methylene blue concentration, and pH. The optimum degradation of methylene blue was achieved using 20 mg of HAp/ZnO nanocomposite at an irradiation time of 120 minutes, an initial methylene blue concentration of 5 ppm, and pH 7. Adsorption isotherm modeling revealed that the process followed the Langmuir isotherm model, with a maximum adsorption capacity (qmax) of 0.3353 mg/g. The degradation followed pseudo-second-order kinetics with a reaction rate constant of 4.0026×105 L/mol·s.
Characteristics of Pumice from Cicurug and Its Application as a Bleacher for Crude Palm Oil Haryono; Atiek Rostika Noviyanti; Hersandy Dayu Kusuma; Irwan Kurnia
ETHOS: Jurnal Penelitian dan Pengabdian kepada Masyarakat Vol. 12 No. 2 (2024): (Juni, 2024) Ethos: Jurnal Penelitian Dan Pengabdian Kepada Masyarakat (Sains
Publisher : UPT Publikasi Ilmiah UNISBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/ethos.v12i2.3537

Abstract

Pumice is relatively abundant in Indonesia, especially in Cicurug District, Sukabumi. Pumice has unique characteristics, so it has the potential to be an alternative bleaching agent or a bleacher for crude palm oil. Bleaching is one of the stages in processing crude palm oil into palm cooking oil. In the cooking oil industry, the bleaching of crude palm oil generally uses bentonite as a bleacher. This research aims to determine the characteristics of pumice and the optimum conditions for the bleaching process of crude palm oil with pumice as a bleacher. The research method consists of pumice activation, activated pumice characterization, degumming of crude palm oil, bleaching of crude palm oil, and analysis of processed palm oil. The results show that the metal oxide composition in activated pumice is dominated by silica (62.99%) and alumina (14.79%) and has a non-uniform pore size distribution. Optimum bleaching conditions are achieved when using 30% pumice and a bleaching temperature of 105 oC for 30 minutes. Under optimal bleaching conditions, pumice can reduce the color brightness level of crude palm oil from 600 to 125 mg/L Pt, or a bleaching power of 79.2%.
Synthesis of Hydroxyapatite-Zirconia Composite and Activity Test as Dental Implant Material Noviyanti, Atiek Rostika; Yashfi, Difa Muhammad; Deawati, Yusi; Maryani, Eneng; Hemzah, Sabila Aulia; Ma’amor, Azman
Chimica et Natura Acta Vol 13, No 1 (2025)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cna.v13.n1.60026

Abstract

Hydroxyapatite (HAp) is one of the bioceramics that is widely used in various fields, one of which is the health sector as a dental implant material. One of the reasons is that hydroxyapatite has good biocompatibility. In this study, natural calcium sources such as eggshell waste were utilized for the synthesis of hydroxyapatite. However, its mechanical properties do not yet meet the requirements as a dental implant material, its modification is usually done by adding other compounds, such as zirconium oxide. Zirconium oxide can be used as a support material because it has good strength, toughness, and durability as a dental implant. Therefore, in this study, a hydroxyapatite-zirconium oxide (HAp-ZrO2) composite was synthesized for dental implant material. This study aims to determine the effect of adding ZrO2 on increasing the mechanical and corrosion resistance of HAp. The research methods include isolation of CaO from chicken eggshells, synthesis of hydroxyapatite, synthesis of HAp-ZrO2 composite, hardness test, and corrosion resistance test. Based on SEM images, the addition of ZrO2 can reduce the level of HAp agglomeration. The addition of ZrO2 to HAp did not significantly affect the increase in HAp hardness since the zirconia phase formed is possibly dominated by the cubic phase. The optimum HAp-ZrO2 composite was obtained with a variation of HAp-90%-ZrO2-10% which showed the highest crystallinity of 75.37% with a crystal size at 10.15 nm with corrosion resistance comparable to pure HAp.
A Review on Hydroxyapatite: Properties, Its Composite, and Its Slow-Release Fertilizers Application Hemzah, Sabila Aulia; Noviyanti, Atiek Rostika; Kurnia, Irwan; Hardian, Arie; Irwansyah, Ferli Septi; Ma’Amor, Azman
Jurnal Kartika Kimia Vol 8 No 1 (2025): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i1.913

Abstract

Hydroxyapatite (HAp), a natural mineral form of calcium apatite, has recently received significant attention due to its potential application as a slow-release fertilizer. This review aims to comprehensively analyze HA and its composites, focusing on properties, synthesis methods, and nutrient release mechanisms in agricultural applications. HA's high biocompatibility, excellent adsorption capacity, and ability to release nutrients gradually make it an ideal candidate for increasing soil fertility and crop yields. This review also explores the incorporation of other materials, such as urea, carboxylated cellulose, and montmorillonite, to form HA composites, thereby increasing their efficiency as fertilizer. In addition, the environmental benefits of using HA-based fertilizers, such as reduced nutrient leaching and improved soil health, were also investigated. Challenges and future perspectives are also discussed, emphasizing the need for further research to optimize these materials for practical agricultural use. This review highlights the potential of HA and its composites to revolutionize sustainable agriculture by providing a controlled and efficient nutrient release system.
Yield and Characteristics of Biodiesel from Variations in the Mass Ratio of Waste Cooking Oil Mixtures with Different Waste Sources through Homogeneous Catalyzed Esterification and Transesterification Reactions: Rendemen dan Karakteristik Biodiesel dari Variasi Rasio Massa Campuran Limbah Minyak Goreng dengan Perbedaan Sumber Limbah Melalui Reaksi Esterifikasi dan Transesterifikasi Berkatalis Homogen Haryono; Noviyanti, Atiek Rostika; Kurnia, Irwan
Jurnal Teknologi Lingkungan Vol. 26 No. 2 (2025)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jtl.2025.8170

Abstract

Abstrak Bahan bakar fosil sebagai sumber dominan pemenuhan kebutuhan energi merupakan sumber energi tak terbarukan, sehingga cadangannya akan semakin berkurang seiring dengan peningkatan laju konsumsinya. Biodiesel memiliki potensi sebagai bahan bakar menjanjikan yang dapat menggantikan bahan bakar fosil. Biodiesel digunakan sebagai energi terbarukan dan berkelanjutan karena kandungan sulfur yang hampir tidak ada, netral karbon, dan tidak beracun bagi lingkungan. Biodiesel dapat dihasilkan dari asam lemak yang diperoleh dari beberapa bahan baku, seperti minyak nabati, lemak hewan, dan limbah minyak goreng. Namun demikian, pemanfaatan minyak non pangan sebagai bahan baku produksi biodiesel merupakan langkah strategis. Limbah minyak goreng (LMG) sebagai salah satu jenis minyak non pangan memiliki karakteristik bervariasi. Karakteristik dari limbah minyak goreng tersebut akan mempengaruhi kualitas dan jumlah produksi biodiesel. Tujuan penelitian ini adalah untuk menentukan pengaruh komposisi (rasio massa) campuran LMG dari sumber limbah berbeda (ayam goreng, AG; seafood, SF; dan gorengan, GR) sebagai bahan baku pada sintesis biodiesel dengan katalis asam sulfat dan kalium hidroksida. Penelitian diawali dengan pencampuran LMG dengan variasi komposisi LMG (LMG-AG:LMG-SF:LMG-GR) sebagai rasio massa R1(2:3:1), R2(2:2:2), R3(1:2:3), dan R4(3:1:2). Tahap berikutnya adalah pemurnian dan karakterisasi terhadap campuran LMG, esterifikasi dengan katalis asam sulfat, transesterifikasi dengan katalis kalium hidroksida, pemurnian biodiesel, dan karakterisasi biodiesel. Hasil penelitian menunjukkan bahwa Sintesis biodiesel dari campuran LMG dengan komposisi R3 menghasilkan biodiesel dengan rendemen tertinggi, yaitu 92,12%. Sedangan biodiesel dari campuran LMG dengan komposisi R1 memiliki karakteristik paling sesuai dengan standar kualitas biodiesel menurut Keputusan Dirjen EBTKE tahun 2022 berdasarkan parameter-parameter yang diuji.   Abstrak Fossil fuels, as the dominant source of meeting energy needs, are non-renewable energy sources, so their reserves will decrease as the rate of consumption increases. Biodiesel has the potential to be a promising  fuel that can replace fossil fuels. Biodiesel is a renewable and sustainable energy source because it contains almost no sulfur, is carbon neutral, and is non-toxic to the environment. Biodiesel can be produced from fatty acids from several raw materials, such as vegetable oil, animal fat, and waste cooking oil. However, using non-food oil as raw material for biodiesel production is a strategic step. Cooking oil waste, as a type of non-food oil, has varied characteristics. The characteristics of waste cooking oil will affect the quality and quantity of biodiesel production. The research aims to determine the effect of the composition (mass ratio) of WCO mixtures from different waste sources (fried chicken, AG; seafood, SF; and fried foods, GR) as raw materials on the synthesis of biodiesel with sulfuric acid and potassium hydroxide catalysts. The research began with mixing WCO with variations in WCO composition (WCO-AG:WCO-SF:WCO-GR) as mass ratios R1(2:3:1), R2(2:2:2), R3(1:2:3), and R4(3 :1:2). The next stage is purification and characterization of the WCO mixture, esterification with a sulfuric acid catalyst, transesterification with a potassium hydroxide catalyst, biodiesel purification, and biodiesel characterization. The research results showed that the synthesis of biodiesel from a mixture of WCO with R3 composition produced biodiesel with the highest yield, namely 92.12%. Meanwhile, biodiesel from the WCO mixture with composition R1 has the characteristics that best comply with biodiesel quality standards according to the Decree of the Director General of EBTKE in 2022, based on the parameters tested.
Co-Authors Adhitya Pratama Adzkia, Qurratu Aini Alya Akrajas Ali Umar Alfian Nur Firdaus Alfian Raymondo Sinurat Amal, Alfi Ikhlasul Anceu Murniati Anni Anggraeni Anni Anggraeni, Anni Arie Hardian Arini Nurisydayanti Gumilar Asman Asman Ayu Wanda Marita Azhari Yusuf Azhari Yusuf Azmi Prasasti Bambang Prijamboedi Basril Simbarta Tarigan Budi Adiperdana Budiman, Yudha Prawira Cecep Kusmana Dani Gustaman Syarif Dayu Kusuma, Hersandy Diana Rakhmawaty Diana Rakhmawaty Diana Rakhmawaty Eddy Diana Rakhmawaty Eddy Diana Rakhmawaty Eddy Diana Rakhmawaty Eddy Diana Rakhmawaty Eddy Diana Rakhmawaty Eddy Diana Rakhmawaty Eddy Diana Rakhmawaty Eddy Diana Rakhmawaty Eddy Dickry Abil Barry Pratama Diding Mandala Putra Dini Janati Diyanthi, Erlinda Widyasmara E Evy Ernawati Eddy, Diana Rakhmawaty Eko Prabowo Hadisantoso, Eko Prabowo Engela Evy Ernawati Engela Evy Ernawati Fajar Firmansyah Ferli Septi Irwansyah Firmansyah, Fajar Gani Abdilah Ghaissani Nur Maulani Gustaman Syarif, Dani Halim, Riyan Hanapratiwi, Reinanda HARYONO Haryono Haryono Haryono Haryono Haryono Haryono Haryono Haryono Haryono Haryono Haryono MT Hemzah, Sabila Aulia Hersandy Dayu Kusuma I Nyoman Marsih Iman Rahayu Irwan Kurnia Irwan Kurnia Ismunandar Ismu Iwan Hastiawan Iwan Hastiawan Iwan Hastiawan Jasmansyah, Jasmansyah Juliandri Juliandri Karya, Teguh Kurnia, Irwan Laelaturrohmah Laelaturrohmah Lestari, Putri Rizka Lubis, Rubianto A. Ma'Amor, Azman Bin Malik, Yoga Trianzar Maryani, Eneng Mastuti Widi Lestari Mastuti Widi Lestari, Mastuti Widi Ma’amor, Azman Mochammad Rizal Mohammad Rofik Usman Muhamad Rozaq Nur Fauzi Muhammad Raihan Gemilang Muhammad Reza Muhammad Rizky Ridwansyah Nafisah, Aulia Zakiyatun Nisrina, Aniqa Novella, Indrika Nur Azizah Ferdiana Nurhayati, Mita Pandu, Rinal Pramudya Sulaeman, Allyn Rahmadona, Nova Reinanda Hanapratiwi Rihan Amila Putri Rinal Pandu Risdiana Risdiana RISDIANA RISDIANA, RISDIANA Rizka Endah Roekmiati Tjokronegoro Roekmiati Tjokronegoro, Roekmiati Rubianto A. Lubis Rukiah Rukiah Rukiah Rukiah Rukiah Rukiah Rukiah Rukiah Rukiah Rukiah Rustaman Rustaman S SOLIHUDIN S Solihudin, S S. Suryana Sahrul Hidayat Sarifah Nurjanah Seli Listiani Solihudin Solihudin Solihudin Solihudin Solihudin Solihudin Solihudin Solihudin Solihudin Solihudin Solihudin Solihudin Solihudin Solihudin Solihudin, Solihudin Solihudin, Solihudin Sovia Islamiah Syamsiyatul Fajriyah TATI NURHAYATI Titin Siti Fatimah Titin Siti Fatimah Wahyu Safriansyah Walim Lili Yashfi, Difa Muhammad YATI B YULIYATI Yati B Yuliyati Yati B Yuliyati Yati B Yuliyati Yati B Yuliyati, Yati B Yati B. Yuliyati Yeni Wahyuni Hartati Yuli Andriani Yusi Deawati