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All Journal Ecotrophic, Journal of Environmental Science JURNAL KIMIA SAINS DAN APLIKASI The Journal of Pure and Applied Chemistry Research Science and Technology Indonesia Jurnal Teknologi Mineral dan Batubara Chimica et Natura Acta ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry Communications in Science and Technology Jurnal Kartika Kimia Jurnal Abdimas Kartika Wijayakusuma Jurnal Teknologi Mineral dan Batubara al Kimiya : Jurnal Ilmu Kimia dan Terapan Journal of Tropical Pharmacy and Chemistry
Arie Hardian
Department Of Chemistry, Faculty Of Sciences And Informatics, Universitas Jenderal Achmad Yani Cimahi
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Physics Social Sciences Other

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Sintesis Nanopartikel Codoped Ceria Melalui Metode Sol-Gel Menggunakan Ekstrak Jeruk Lemon (Citrus limon) Sebagai Agen Pengkelat Imas Masriah; Arie Hardian; Dani Gustaman Syarif
Chimica et Natura Acta Vol 6, No 2 (2018)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (450.551 KB) | DOI: 10.24198/cna.v6.n2.16477

Abstract

Ceria dengan dopan ganda (codoped) merupakan salah satu alternatif elektrolit padat untuk sel bahan bakar padatan oksida suhu menengah (Intermediate Temperature – Solid Oxide Fuel Cell, IT-SOFC). Tujuan penelitian ini adalah untuk melakukan sintesis dan karakterisasi nanopartikel ceria terdoping Gadolinia 10% dan Neodimia 10% dengan metode sol-gel menggunakan asam sitrat atau ekstrak jeruk lemon sebagai agen pengkelat. Ce0,8Gd0,1Nd0,1O1,9 (GNDC1010) telah berhasil disintesis dengan metode sol-gel menggunakan asam sitrat dan ekstrak jeruk lemon dengan variasi pH 5; 7; dan 9. Berdasarkan hasil XRD, pola XRD dari GNDC1010 memiliki kemiripan dengan pola XRD dari struktur fluorit ceria murni (JCPDS ICDD: #00-034-394). Pergeseran 2θ ke arah yang lebih kecil dari pola difraksi GNDC1010 dibandingkan dengan ceria murni mengindikasikan terjadinya ekspansi kisi. Berdasarkan hasil penghalusan (refinement) GNDC1010 hasil sintesis memiliki struktur kubik dengan grup ruang Fm3m dan parameter kisi pada rentang 5,435(1) hingga 5,4438(7) Å. Ukuran kristalit (persamaan Scherrer) GNDC1010 ekstrak berada pada rentang 4,27nm hingga 13,85nm.
The Effect of Temperature Synthesis on the Plate-Like Particle of Bi4Ti3O12 Obtained by Single Molten NaCl Salt Sheley Marela; Nur Aini; Arie Hardian; Veinardi Suendo; Anton Prasetyo
The Journal of Pure and Applied Chemistry Research Vol 10, No 1 (2021): Edition January-April 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.01.570

Abstract

Three-layer Aurivillius compound bismuth titanate (Bi4Ti3O12) is well known for having interesting properties such as ferroelectric and photocatalyst. Many researchers reported that the unique plate-like shaped particle affecting ferroelectric and photocatalyst properties. The molten salt synthesis is the common simple method to obtain that unique morphology. In this research, Bi4Ti3O12 was synthesized using single molten salt NaCl at various temperatures, which is 800, 850, 900, and 950 oC. X-Ray Diffraction data showed that all obtained Bi4Ti3O12 have a B2cb space group with no impurities detected. The Raman spectra shows the characteristic vibration modes of Bi4Ti3O12 at 62, 117, 228, 269, 332, 364, 536, 851 cm-1. The plate-like shaped particle was confirmed by SEM analysis. Based on SEM images, the size of the particle increased along with the synthesis temperature, which is due to the thermal effect on grain growth.
DINAMISASI DAN PRODUKTIVITAS PRIMER SUNGAI CITARUM PROVINSI JAWA BARAT Anggi Suprabawati; Arie Hardian; Eki Al Ghifari
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 13 No 1 (2019)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (181.412 KB) | DOI: 10.24843/EJES.2019.v13.i01.p03

Abstract

Monitoring the quality of the river is essentially to know the status of the periodic quality of the river. Good assessment of river water quality should use a combination of physical, chemical and biological parameters. One way that can be done to describe water quality in an area is the primary productivity in the water. Primary productivity is the amount of organic material produced by autotrophic organisms with the help of sunlight. Perifiton as a river microorganism, will provide dissolved oxygen (DO) through photosynthesis to maintain most of the life of the surrounding water, then Periphyton can respond quickly to environmental changes, this is an indicator of changing conditions (Gaiser 2008 and Lakewatch, 2000) in Brown and Wright (2016) Chemical reactions that occur in the aquatic environment also involve interactions between ions and other phases. Some important interactions in the waters are the occurrence of photosynthesis by algae and the exchange of dissolved solids with dissolved gases in water. The same exchange occurs when bacteria degrade organic matter (often in the form of particles) in water. Some important elements move around in aquatic systems as colloidal chemical compounds or are absorbed into soil particles. The equilibrium of physical chemical reactions in waters involves sediment, gas, and water. Sediment is a layer of material or material that covers the bottom of small rivers, lakes, reservoirs, bays, and oceans. Sediments contain fine mixtures and subtle minerals, including clay, silt, and sand, which mix with organic materials. These materials may experience changes in composition from pure mineral ingredients to main organic ingredients. Sediments contain biological ingredients, chemicals, and pollutants in water. Keywords: Primary Productivity; citarum river ; sediment; water test parameter
PENGARUH PENAMBAHAN KATALIS TiO2 TERHADAP SIFAT KIMIA PERMUKAAN KOMPOSIT KARBON AKTIF UNTUK PENYERAPAN GAS SO2 Ika Monika; Datin Fatia Umar; Arie Hardian; Rina Astriana; Fahmi Sulistyohadi
Jurnal Teknologi Mineral dan Batubara Vol 17, No 3 (2021): Jurnal Teknologi Mineral dan Batubara Edisi September 2021
Publisher : Puslitbang tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol17.No3.2021.1140

Abstract

Karbon aktif dan TiO2 mereduksi SO2 melalui proses adsorpsi dan fotokatalitik. Kedua senyawa ini memiliki efektivitas adsorpsi rendah. Untuk meningkatkan aktivitas adsorpsi dilakukan kombinasi teknik adsorben dan fotokatalitik sehingga adsorpsi dapat optimal. Kombinasi dilakukan dengan membuat komposit karbon aktif/TiO2. Batubara dan semi-kokas dicampur dengan perbandingan 7:3 kemudian TiO2 ditambahkan dengan konsentrasi 1, 3, 6, 9 dan 15%. Karbon aktif/ TiO2 dikarbonisasi pada suhu 600 °C selama 1 jam dan diaktivasi pada suhu 900 °C selama 1 dan 2 jam di bawah aliran gas nitrogen. Hasil analisis fourier-transform infrared (FTIR) spectroscopy menunjukkan intensitas serapan gugus fungsi C=O naik sebesar 49,5% pada karbon aktif/TiO2 6% selama 1 jam dan 33,2% pada karbon aktif/TiO2 3% selama 2 jam. Gugus fungsi basa C=O mereduksi gas SO2 yang bersifat asam. Hasil X-ray diffraction (XRD) ditemukan kristal TiO2 anatas dan rutil. Koeksistensi kristal anatas dan rutil lebih efektif daripada anatas dan rutil fase tunggal. Hasil penelitian ini menunjukkan bahwa karbon aktif/TiO2 meningkatkan aktivitas gugus fungsi permukaan karbon aktif dan membentuk kristal TiO2 anatas dan rutil secara bersama.
Sintesis Keramik Komposit ZrO2-ZnFe2O4 sebagai Fotokatalis Magnetik untuk Degradasi Metilen Biru Arie Hardian; Rina Herdiana Putri; Senadi Budiman; Dani Gustaman Syarif
ALCHEMY Jurnal Penelitian Kimia Vol 17, No 1 (2021): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.17.1.39240.43-53

Abstract

Metilen biru merupakan salah satu zat pewarna dalam limbah cair tekstil yang dapat merusak ekosistem perairan dan mempunyai nilai ambang batas 5 mg/L. Salah satu cara untuk mengolah MB dalam larutan yaitu dengan fotokatalisis mengingat sederhana, cepat, dan mudah diregenerasi. Namun, cara ini memiliki kekurangan yakni waktu pemisahan yang lama. Penambahan sifat magnetik ke dalam material fotokatalis yang kemudian disebut fotokatalis magnetik dapat mengatasi kelemahan dari fotokatalis konvensional. Dalam penelitian ini, fotokatalis magnetik berbasis komposit ZrO2-ZnFe2O4 telah berhasil disintesis menggunakan metode kopresipitasi sederhana dengan memanfaatkan mineral lokal pasir Zircon. Komposit yang dihasilkan dikarakterisasi menggunakan X-Ray Diffraction (XRD), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM/EDS), Surface Area Analyzer (SAA). Evaluasi terhadap kinerja fotokatalis diamati menggunakan metode spektrofotometri UV-Vis. ZrO2-ZnFe2O4 yang dihasilkan mengandung kristal ZnFe2O4 berstruktur kubik. Partikel komposit memiliki bentuk irregular dan teraglomerasi. Komposit mengandung 6,52 Zr; 9,31 Zn; 23,58 Fe; dan 58,73 O dalam %atom, sesuai dengan stoikiometrinya. Luas permukaan spesifik ZrO2-ZnFe2O4 sebesar 112,375 m2/g. Sifat magnet dikonfirmasi menggunakan medan magnet ekstenal yang menunjukkan bahwa komposit ZrO2-ZnFe2O4 memiliki sifat magnet lemah. Kondisi optimum untuk fotodegradasi MB oleh komposit ZrO2-ZnFe2O4 dihasilkan pada pH 10 selama 120 menit dengan %degradasi MB sekitar 94,00%. Synthesis of ZrO2-ZnFe2O4 Composite Ceramics as Magnetic Photocatalyst for Methylene Blue Degradation. Methylene blue (MB) is one of the dye compounds in textile wastewater that can damage aquatic ecosystems and has a threshold value of only 5 mg/L. The alternative way to treat MB in aqueous solutions is photocatalysis which has simple, fast, and easy regenerate properties but has a drawback such as a long separation time. Immersing magnetic properties to photocatalyst material called magnetic photocatalyst can solve the weakness of conventional photocatalyst. In this work, the magnetic photocatalyst of ZrO2-ZnFe2O4 was synthesized by simply co-precipitation method from local natural sources Zircon sand. The composites were then characterized using X-Ray Diffraction (XRD), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM/EDS), Surface Area Analyzer (SAA). The evaluation of photocatalytic performance was observed by using a spectrophotometer UV-Vis. The obtained ZrO2-ZnFe2O4 reveals a cubic structure of ZnFe2O4. The composites particles have an irregular and agglomerated shape. The obtained ZrO2-ZnFe2O4 contained 6.52 of Zr, 9.31 of Zn, 23.58 of Fe, and 58.73 of O in atomic percentage, corresponding to its stoichiometry. The specific surface area of ZrO2-ZnFe2O4 was 112.376 m2/g. The magnetic properties were confirmed by an external magnetic field showing that the composite has weak magnetic properties. The optimum condition for photodegradation of methylene blue by ZrO2-ZnFe2O4 was obtained at pH 10 for 120 minutes with methylene blue degradation percentage (%D) approximately 94.00%.
SYNTHESIS AND CHARACTERIZATION OF Fe2O3 NANOPARTICLES USING Averrhoa bilimbi AS BIOMATERIAL CHELATING AGENT FOR NANOFLUIDS APPLICATION Arie Hardian; Alvi Aristia Ramadhiany; Dani Gustaman Syarif; Senadi Budiman
ALCHEMY Jurnal Penelitian Kimia Vol 13, No 2 (2017): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.13.2.4348.133-146

Abstract

The aim of this work was to determine the effect of calcination temperature on the characteristics of Fe2O3 nanoparticles (NPs) in sol-gel synthesis. The obtained Fe2O3 NPs was then used as material for preparation of Fe2O3-water nanofluids. Nanofluids is a mixture between basic fluid like water and 1 - 100 nm solid particles (nanoparticles). Nanoparticles of Fe2O3 have been synthesized from the local mineral Jarosite using sol-gel method by using starfruit (Averrhoa bilimbi) extracts as the chelating agent. The calcination temperature was then varied from 500 ºC to 700 ºC for 5 hours. Based on the X-Ray Diffraction (XRD) analysis, the diffraction pattern of obtained Fe2O3 was relevant with the JCPDS data No. 33-0664 for α-Fe2O3 with hexagonal crystallite system. The crystallite size (Scherrer’s Equation) of obtained α-Fe2O3 nanoparticles at calcination temperatures of 500 ºC, 600 ºC and 700 ºC was 50 nm, 48 nm and 40 nm, respectively. The Surface Area of Fe2O3 NPs at temperature of 500 ºC, 600 ºC and 700 ºC was 45.45 m2/g; 26.91 m2/g and 17.51 m2/g, respectively. Fe2O3-water nanofluids was relativly stable with zeta potential of -39.60 mV; -46.37 mV and -41.57 mV, respectively for 500 ºC, 600 ºC and 700 ºC calcination temperature. The viscosity of Fe2O3-water nanofluids was higher than the viscosity of water. The critical heat flux (CHF) value of water-Fe2O3 nanofluids was higher than the CHF water. The highest CHF value for nanofluids was obtained by using α-Fe2O3 nanoparticles with calcination temperature of 600 ºC which 34.99 % of increment compare to the base fluid (water).
Heat Treatment of Pitch Obtained from Atmospheric Fixed-Bed Coal Gasification Phiciato Phiciato; Ika Monika; Arie Hardian
Indonesian Journal of Chemistry Vol 18, No 3 (2018)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (320.792 KB) | DOI: 10.22146/ijc.31731

Abstract

A medium temperature pitch obtained from atmospheric fixed-bed gasifier was distilled at a various time (1, 2, 3 and 4 h) to induce polymerization and the results were compared with a commercial pitch. Aromaticity level of pitches was examined using infrared spectroscopy, elemental analysis and simultaneous thermal analysis (TG-DSC). Longer heating time promoted lower moisture content, lower residue yield, higher insoluble fractions, as well as higher ash and carbon content. Although prolonged heat treatments lead to higher aromatization, there was no significant change in aromatization for heat treatment longer than 1 h. The index of aromaticity measured by using elemental analysis was ranged between 0.47 to 1.01, while the result from FTIR spectra showed stagnant value at 0.52. These values were slightly higher than that of pressurized Sasol-Lurgi gasification pitch (0.27).
Editorial Section Arie Hardian
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (152.442 KB) | DOI: 10.26874/jkk.v2i1.30

Abstract

Front and Back Cover Arie Hardian
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1256.745 KB) | DOI: 10.26874/jkk.v2i1.31

Abstract

Mass Effect of Coconut Shell-derived Activated Carbon on Adsorption of Benzene, Toluene, Ethylbenzene, and Xylene in Motorcycle Emissions Trisna Yuliana; Aini Aspiati Rohmah; Yusuf Eka Maulana; Arie Hardian
Jurnal Kimia Sains dan Aplikasi Vol 24, No 4 (2021): Volume 24 Issue 4 Year 2021
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2483.878 KB) | DOI: 10.14710/jksa.24.4.120-125

Abstract

The use of motorized transportation in Indonesia is now proliferating. The higher the use of motorized vehicle-based transportation in an area, the higher the potential for air pollution. One of the air pollutants is a mixture of benzene, toluene, ethylbenzene, and xylene (BTEX). This study examines the effect of coconut shell-derived activated carbon adsorbent mass which is adjusted with different thicknesses on its adsorption ability for BTEX. The adsorbent is used to adsorb the emissions of the 1990 GL-Pro motorcycle with premium fuel. The results of gas chromatography-mass spectroscopy (GC-MS) show that motor vehicle emissions contain BTEX and other hydrocarbons. ANOVA variant analysis showed that the difference in mass of activated carbon in the range of this study did not provide a significant difference in BTEX adsorption.Keywords: adsorbent; motor vehicle emissions; BTEX pollutants; coconut shell
Co-Authors Abdul Mutalib Afiyah, Delinda Nirmala Agma, Muljadji Agustini, Dewi Meliati Aini Aspiati Rohmah Alvi Aristia Ramadhiany Anceu Murniati Anceu Murniati Anggi Suprabawati Anggi Suprabawati Anni Anggraeni Anton Prasetyo Anwari, Nelly Safitri Aprillianto, Yesaya Ardina Purnama Tirta Asep Najmurrokhman Atiek Rostika Noviyanti Buchari Buchari Buchari Buchari Budiman, Senadi Chairussani Abbas Sopamena Dani Gustaman Syarif Dani Gustaman Syarif Dani Gustaman Syarif Dani Gustaman Syarif Dani Gustaman Syarif Datin Fatia Umar Dera Triani Dian Ayu Setyorini Dwi Rahayu Novianti Ekawandi, Fanny Rahman Eki Al Ghifari Fahmi Sulistyohadi Fanny Rahman Ekawandi Fikri Haikal Gilang Adi Nugraha Gustaman Syarif, Dani Halim, Riyan Hemzah, Sabila Aulia Herawati Herawati Herman Herman Himmah, Suci Noerfaiqotul Husein Hernadi Bahti Ika Monika Ika Monika Imas Masriah Inda Mapiliandari Inggarwati , Ervina Dwi Izzah, Nuril Lailatul Jasmansyah Jasmansyah Jasmansyah, Jasmansyah Karya, Teguh Kurnia, Irwan Kusumaningtyas, Valentina Adimurti Lilis Siti Aisyah, Lilis Siti Lisda Virdasari Ma’unatin, Anik Mapiliandari, Inda Maryani, Kanty Ma’amor, Azman Muhammad Reza Muhammad Yudhistira Azis Mulyani, Rahmaniar Nadia Annisa Fajriana Nafisah, Aulia Zakiyatun Nisrina, Aniqa Nur Aini Nur Aini Nurdeni, Nurdeni Nurhayati, Mita Phiciato Phiciato Purbaya, Sari Puspa Sari, Puspa Rahayu, Rizky Sri Restu Muchammad Ibrahim Rina Astriana Rina Herdiana Putri Rinto Yusriski Rosi Rosidah RR. Ella Evrita Hestiandari Rusnadi Rusnadi Saefudin, Deny Bayu Safi'i, Abdi Wadud Safitri, Widiya Nur Safitri, Widya Nur Sagita, Fuja Savira, Amalia Senadi Budiman Senadi Budiman Senadi Budiman Senadi Budiman Setiyanto, Henry Sheley Marela Suharnoko Suharnoko Sujono, Hernandi Suryo Gandasasmita Suryo Gandasasmita Thoriq, Thoriq Tirta, Ardina Purnama Usman Ali Rouf Veinardi Suendo Yenny Febriani Yun, Yenny Febriani Yesaya Aprillianto Yuliana, Trisna Yuliana, Trisna Yusuf Eka Maulana Zeily Nurachman ZEILY NURACHMAN