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All Journal Jurnal Neutrino : jurnal fisika dan aplikasinya Alchemy : Journal of Chemistry SAINSTIS The Journal of Pure and Applied Chemistry Research Science and Technology Indonesia ALCHEMY Jurnal Penelitian Kimia Bulletin of Chemical Reaction Engineering & Catalysis al Kimiya : Jurnal Ilmu Kimia dan Terapan

Anton Prasetyo

Program Studi Kimia, Fakultas Sains Dan Teknologi, UIN Maulana Malik Ibrahim Malang

Author-ID : 2844718

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Physics

Published : 14 Documents Claim Missing Document

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ADSORPSI METILEN BLUE PADA KARBON AKTIF DARI BAN BEKAS DENGAN VARIASI KONSENTRASI NACL PADA SUHU PENGAKTIFAN 600 OC DAN 650 OC Rini Nafsiati Astuti, Anton Prasetyo, Ahmad Yudi,
Jurnal Neutrino JURNAL NEUTRINO (Vol 4 No 1
Publisher : Department of Physics, Maulana Malik Ibrahim State Islamic University of Malang

Permintaan karbon aktif dunia tiap tahunnya mengalami peningkatan. Ditinjau dari komposisinya maka ban bekas mengandung unsur utama karbon, oleh karenanya mempunyai peluang untuk dijadikan karbon aktif. Salah satu parameter kualitas karbon aktif adalah daya adsorpsinya terhadap metilen blue oleh karenanya dalam penelitian akan dikaji daya adsorpsi karbon aktif terhadap metilen blue dengan aktivator kimia NaCl dan pada suhu pengaktifan 600 oC dan 650 oC. Dari hasil penelitian didapatkan hasil bahwa bahwa kemampuan mengadsorpsi metilen blue meningkat dengan kenaikan konsentrasi activator kimia. Kemampuan mengadsorpsi didapatkan pada NaCl sebesar 30 %. Kemampuan adsorpsi juga meningkat dengan kenaikan suhu pengaktifan dengan suhu pengaktifan terbaik pada 650 oC. Dari perbandingan hasil adsorpsi pada berbagai kondisi didapatkan hasil bahwa kemampuanÂ adsorpsi terbesar karbon aktif adalah 18,9082 mg/g pada kondisi konsentrasi aktivator kimia NaCl 30 % dan suhu pengaktifan 650 oC. Analisis menggunakan SEM-EDAX menunjukkan permukaan pori karbon aktif yang masih belum terbuka secara sempurna dengan kandungan unsur karbon sebesar 95,41%.

ANALISIS PERMUKAAN ZEOLIT ALAM MALANG YANG MENGALAMI MODIFIKASI PORI DENGAN UJI SEM-EDS Anton Prasetyo; Rini Nafsiati; Susi Nurul Kholifah; Agie Botianovi
SAINSTIS SAINSTIS (Vol 1, No 2
Publisher : Lembaga Penelitian dan Pengembangan Universitas Islam Negeri Maulana Malik Ibrahim Malang.

Nature zeolit is pore material much benefitted in industry sector as adsorben, katalis and many other else. The existence of this material in Indonesia is very exuberate, one of them is Malang. The efforts to improve zeolit quality have already much done by many researchers. In this research, there has been done characterization and zeolit modification in Malang land become mesopori material by using surfaktan CTAB as template. To characterize pore can be done by SEM test and to know the element content can be done by EDS test. From this, we know that from SEM test got result that mophologi structure of zeolit grain generally contains lempengs arranged insmoothly and tend to be amorf shape. SEM test is incapable to identify pore of zeolit such as preparasi, kalsinasi or modified zeolit in order unidentified took pore changing. The result of EDS test occur that the changing of element content of nature zeolit composer in dealuminasi process. So there is changing of ratio Si/Al in nature zeolit where it is 3.002 and after dealuminasi 1.8994. Whereas the element content after modification is similar with element content in zeolit having dealuminasi.

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

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.

KAJIAN KURVA STRESS-STRAIN UNTUK PENENTUAN KUANTITATIF PLATISITAS LEMPUNG Anton Prasetyo
ALCHEMY ALCHEMY (Vol.1 No.1
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Sifat plastisitas lempung mempunyai peran penting dalam pembuatan keramik dengan metode badan plastis, oleh karenanya pegukuran sifat plastis menjadi penting untuk mengetahui kualitas sebuah lempung. Pengukuran plastisitas selama ini hanya menekankan aspek kualitatif dan semikualitatif, sementara untuk peningkatan kualitas bahan keramik diperlukan sebuah analisis kuantitatif plastisitas. Pengukuran plastisitas secara kuantitatif masih belum ada, oleh karenanya pengembangan metode ini menjadi penting. Hubungan tegangan – regangan telah digunakan untuk menggambarkan sifat mekanik suatu bahan. Dengan hubungan tegangan – regangan bahan dapat dibedakan sebagai bahan plastis atau non plastis. bahan. Dengan menghitung luas wilayah plastisisitas suatu grafik tegangan regangan suatu bahan maka dapat diperoleh besarnya nilai plastisitas. Lempung juga bila diuji dengan uji tarik maka akan didapatkan grafik tegangan-regangan oleh karenaya bisa dihitung luas wilayah plastisitasnya, sehingga bisa diketahui nilai kuantitatif plastisitas lempung.

PENENTUAN NILAI KALOR BERBAGAI KOMPOSISI CAMPURAN BAHAN BAKAR MINYAK NABATI Abi Dwi Hastono; Anton Prasetyo; Nur Robi'ah Adawiyah Mahmud
ALCHEMY ALCHEMY (Vol.1 No.2
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Krisis energi fosil memberikan peluang pemanfaatan biomasa sebagai bahan bakar minyak alternatif seperti minyak jarak pagar, minyak kelapa sawit dan minyak jelantah. Minyak nabati selain merupakan sumber energi yang dapat diperbaharui, juga merupakan energi yang ramah lingkungan dengan nilai investasi yang murah sehingga minyak nabati menjadi salah satu bahan bakar alternatif yang menjanjikan. Dalam penelitian ini dilakukan pengukuran nilai kalor dari campuran minyak goreng bekas dan minyak jarak pagar. Selain itu dilakukan juga pengkajian sifat fisika dan kimianya yang meliputi densitas, viskositas, indeks bias, bilangan asam, bilangan iod, dari campuran minyak goreng bekas danminyak jarak pagar. Dari pengukuran nilai kalor campuran minyak goreng bekas dan minyak jarak pagar ada direntang nilai kalor 8172,1 kal/g sampai dengan 9197,29 kal/g. Dari pengukuran sifat fisika dan kimianya didapatkan hasil: Nilai densitas ada pada rentang 904,082 Kg/m3 sampai 904,082 Kg/m3; nilai indeks bias ada pada rentang 1,466 sampai dengan 1,462; nilai viskositas ada pada rentang 4,18 cPsampai dengan 4,11 cP; Bilangan asam ada pada rentang 30,294 mg KOH/g sampel sampai dengan 0,813 KOH/g sampel; dan Bilagan Iod ada pada rentang 135,530 g Iod.Keywords: Bahan Bakar Minyak Nabati; Nilai Kalor; Karakteristik Sifat Fisikokimia

KAJIAN PENAMBAHAN ABU SEKAM PADI DARI BERBAGAI SUHU PENGABUAN TERHADAP PLASTISITAS KAOLIN Saiyidatul Umah; Anton Prasetyo; Himmatul Barroroh
ALCHEMY ALCHEMY (Vol.1 No.2
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Abu sekam padi merupakan bahan buangan dari padi yang mengandung silika (SiO2). Oleh karena itu abu sekam padi mempunyai peluang sebagai bahan aditif pada pembuatan keramik. Pembuatan abu sekam padi dilakukan pada variasi suhu pengabuan 600 0C, 700 0C dan 800 0C selama 4 jam. Hasil penelitian menunjukkan bahwa tingkat kecerahan warna dari abu sekam padi semakin tinggi seiring kenaikan suhu pengabuan 600 0C, 700 0C dan 800 0C yaitu 60,8; 61,4; 66,5. Kadar air dari abu sekam padi dari hasil pengabuan pada suhu 600 0C, 700 0C dan 800 0C sebesar 0,596 %; 0,895 %; dan 0,296 %. Kadar karbon (termasuk kontribusi kadar air) dari masing-masing abu sekam padi sebesar 0,045%; 0,048%; 0,037%, jumlah kualitatif SiO2 dari abu sekam padi hasil pengabuan pada suhu pengabuan 600 0C 700 0C 800 0C sedangkan komposisi kimia dari abu sekam padi yang dominan adalah Si hingga mencapai 91,2 %. Difraktogram dari masing-masing abu sekam padi menunjukkan pola difraksi sinar X dengan kristalinitas yang rendah dan cenderung amorf. Indeks plastisitas kaolin semakin turun dengan penambahan abu sekam padi yang diabukan pada variasi suhu 600 0C, 700 0C dan 800 0C yaitu; 21,49; 18,45; 10,77.

THE STUDY OF ADSORPTION ON Cr(VI) IN NATURAL CLAY SURFACE MODIFIED WITH SURFACTANT CTAB (Cetyltrimethylammonium Bromide) Maksum Maksum; Susi Nurul Khalifah; Anton Prasetyo
ALCHEMY ALCHEMY (Vol.3, No.1
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Clay is a mineral particles composed of silica-alumina base frame, has a layered structure and a hollowed space causing surface becomes very widespread and effective as an adsorbent. Adsorbent of clay is very effective to adsorb cation for having negatively charged surfaces, but its ability to adsorb anion is very low, such as Cr(VI) formed in HCrO4- at pH 2. This research has been conducted in the clay of activation process chemically with the variation of H2SO4 0,5, 1,0, 1,5 and 2,0 M and physically with the variation in the temperature of 200, 300, 400°C as well as modifying the surface with the variation of CTAB surfactant 25, 50, 75, and 100 mM to enhance the adsorption of Cr(VI). The results of study showed that the treatment on the activation and modification of natural clay can increase the adsorption capacity of Cr(VI) is greater. Adsorption capacity (Qe) before activating the natural clay is 0,0971 mg/g, while the Na-clay increased adsorption of Cr(VI) at 7,85 % as indicated by Qe = 0,1756 mg/g of natural clay. The use of 0,5 M H2SO4 activation of adsorption increased by 21,44 % to the value of Qe = 0,3115 mg/g. The treatment of physically activation after activating the best chemical showed at a temperature of 200°C with an increase of 29,82% adsorption of value Qe = 0,3953 mg/g. While modification to the clay treatment results in the best physical activation get CTAB 25 mM concentration with increased adsorption of 94,54 % with a value of Qe = 1,0425 mg/g.

Structural and Photocatalytic Properties of TiO2/Zeolite Synthesized using Sol-Gel Method Nur Aini; Fahmi Eksa Sagita; Khoridatud Diyanah; Aminatus Arifah; Siti Nur Chasanah; Anton Prasetyo
ALCHEMY Vol 7, No 1 (2019): ALCHEMY: Journal of Chemistry
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Titanium dioxide (TiO2) is supported into natural zeolite to enhance its photocatalytic activity. TiO2/zeolite is synthesized using sol-gel method at composition ratio of 5:95; 10:90; 20:80 and 30:70%. Structural properties are measured by X-ray diffraction showed TiO2/zeolite in various composition has characteristic of anatase and modernite phase. The energy dispersive spectroscopy characterization shows TiO2/zeolite containing Ti element which indicates that TiO2is successfully supported into natural zeolite. Vibration mode of Infrared and Raman spectra tend shifted to higher wavenumber as increasing of TiO2 content indicating the higher energy vibration due to molecular interaction between TiO2 and zeolite. Photocatalytic activity test toward methylene blue degradation shows that TiO2/zeolite has higher activity than TiO2 and zeolite itself.Keywords: Photocatalyst, titanium dioxide, zeolite

Synthesis of Microsheets Bi4Ti3O12 and Bi4Ti2.95V0.05O12 via Molten NaCl-KCl Salt Method Anton Prasetyo; Andy Nur Muhammad Guntur; Suci Noerfaiqotul Himmah; Nur Aini; Usman Ali Rouf; Abdul Aziz
The Journal of Pure and Applied Chemistry Research Vol 11, No 3 (2022): Edition September-December 2022
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2022.011.03.703

Bi4Ti3O12 is a tri-layer Aurivillius member compound that was reported to have good photocatalytic properties. Metal element doping and morphological particle tuning are strategies to increase photocatalyst activity. In this research, the compound micro sheets Bi4Ti3O12 and Bi4Ti2.95V0.05O12 were synthesized using molten NaCl/KCl salt. The diffractogram shows that the Bi4Ti3O12 sample was successfully synthesized, however, there are still found impurities at the Bi4Ti2.95V0.05O12 sample. Micrographs showed that the morphology particle samples is. The results of UV-Vis DRS spectra calculation show that both samples have a band gap energy of ~2.97 eV.

Synthesis and Characterization of Fe-Doped CaTiO3 Polyhedra Prepared by Molten NaCl Salt Dwi Rahayu Novianti; Fikri Haikal; Usman Ali Rouf; Arie Hardian; Anton Prasetyo
Science and Technology Indonesia Vol. 7 No. 1 (2022): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

CaTiO3 as one of the perovskite-based photocatalysts has a band gap energy of 3.5 eV (~354 nm), thus will work at the ultraviolet light region. One of the strategies to decrease the band gap energy is doping metal. In this research, CaTiO3 was doped by Fe element as purposes to decreasing its band gap energy. Fe doped CaTiO3 compounds were synthesized using molten NaCl salt method. The diffractogram samples showed that the Fe-doped CaTiO3 crystal was successfully prepared. Meanwhile, the SEM images showed that the particle shape was regular polyhedral morphology, and doping Fe3+ caused the particle size to decrease and agglomerated. The UV-Vis DRS spectra showed that the Fe-dopant revealed the absorption light at visible range wavelength.

Co-Authors Abdul Aziz Abi Dwi Hastono Agie Botianovi Aldi Dwi Prasetiyo Aminatus Arifah Andy Nur Muhammad Guntur Arie Hardian Dwi Rahayu Novianti Erna Hastuti Fahmi Eksa Sagita Fikri Haikal Fikri Haikal Fikri Haikal Hadi Nur Hasal Maulidianingtiyas Himmatul Barroroh Indra Nur Cahyo Khoridatud Diyanah Maksum Maksum Mohamad Thoif Muhammad Lathif al-Abror Mukhamad Nurhadi, Mukhamad Nabila Nur Agusti Nur Aini Nur Aini Nur Robi'ah Adawiyah Mahmud Pinky Lintang Satriani Manunggal Puspa Sari Ratna Kusumawardani, Ratna Rini Nafsiati Saiyidatul Umah Sheley Marela Sin Yuan Lai Siti Nur Chasanah Suci Noerfaiqotul Himmah Suci Noerfaiqotul Himmah Susi Nurul Khalifah Susi Nurul Kholifah Teguh Wirawan Usman Ali Rouf Usman Ali Rouf Veinardi Suendo Vina Nurul Istighfarini

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