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Muhammad Nur Alam
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Program Studi Kimia, Fakultas Sains Universitas Cokroaminoto Palopo Kampus 2, Jl. Lamaranginang Kota Palopo Sulawesi Selatan
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Cokroaminoto Journal of Chemical Science
Published by Universitas Cokroaminoto Palopo
ISSN : -     EISSN : 2723438X     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Energy Materials Science & Nanotechnology
The journal publishes two continuous issues annually, which means every accepted article in February - July will be published in Issue No. 1, and every accepted articles in August - Januar will be published in Issue No. 2. scope is organic chemistry, inorganic chemistry, analytical chemistry, physical chemistry, theoretical chemistry and applied chemistry
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 4 No. 2 (2022)" : 5 Documents clear
Sintesis dan Karakterisasi Bionano Hidroksiapatit (HAp) Secara Insitu Dengan Metode Hidrotermal Laode A. Kadir; Dian Permana; Thamrin Azis
Cokroaminoto Journal of Chemical Science Vol. 4 No. 2 (2022)
Publisher : Universitas Cokroaminoto Palopo

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Abstract

The pokea clamshell contains high calcium content which has the potency to be used as a precursor of calcium in synthesis of hydroxyapatite (HAp). This study aimed to utilize the waste of the pokea clamshells as a precursor of CaO in synthesizing of HAp, and to carry out the characterizations. Analysis of CaO content XRF showed that pokea clamshell after calcination was 94.23% (by weight). The hydrothermal method synthesized HAp confirmed the formation of single phase of HAp as indicated by the sharpness of the phosphate (PO43-) vibration peak at 561.85; 962.01; and 1024.55 cm-1.
PENGARUH HIDROLISIS TERHADAP PRODUKSI BIOETANOL DARI LIMBAH KULIT JERUK DAN DAUN JAMBU BIJI Muhammad Nur Alam; Sartika Suardi; Ilmiati Illing
Cokroaminoto Journal of Chemical Science Vol. 4 No. 2 (2022)
Publisher : Universitas Cokroaminoto Palopo

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Abstract

The increase in population causes an increase in transportation and industrial facilities which results in high demand and consumption of fuel oil (BBM). Therefore, alternative renewable energy sources are needed. One of the alternatives is bioethanol from orange peel waste (Citrus x sinensis) and guava leaves (Psidium Guajava). This study aims to determine how to make bioethanol from sweet orange peel waste and guava leaves and to determine the amount of ethanol produced. Orange peels (Sitrus xsinensis) and guava leaves (Psidium guajava) are commonly found in various areas, especially in Luwu and North Luwu regencies which can be used as alternative fuels. The methods in this study include the manufacture of flour, hydrolysis (for sample A1). The addition of distilled water without hydrolysis (for sample A2), fermentation and distillation to produce 4 ml of ethanol in sample A1. The drawback of this study is that sample A2 does not produce ethanol because the fermentation lasts too long so that the alcohol turns into ester compounds
SINTESIS SEMIKONDUKTOR ZnO UNDOPED DAN DOPED Cu2+ DENGAN VARIASI TEMPERATUR KALSINASI MENGGUNAKAN METODE SOL-GEL Idawati supu
Cokroaminoto Journal of Chemical Science Vol. 4 No. 2 (2022)
Publisher : Universitas Cokroaminoto Palopo

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Abstract

Tujuan dari penelitian ini adalah membuat semikonduktor ZnO yang di doping Cu2+ menggunakan metode sol-gel dengan variasi temperatur kalsinasi 300⁰C, 500 ⁰C dan 700⁰C , menganalisis perbedaan ZnO undoped dan doped Cu2+ dari Cu(CH3COO)2H2O serta menggunakan Zn(CH3COO2)2H2O sebagai prekursor. Sintesis ZnO menggunakan metode sol gel. Penambahan Cu 2+ dengan konsentrasi 3% sebagai bahan doping menghasilkan sol berwarna biru muda dan setelah ditambahkan Diethylamine larutan pada sampel beruah menjadi biru pekat. Pada penelitian ini diperoleh hasil EDS pada suhu 300⁰C konsentrasi berat Zn 82.25% dan O sebesar 17.75%, selanjutnya pada suhu 500⁰C dihasilkan Zn sebesar 72.49% dan O sebesar 27.51%, demikian pula pada 700⁰C dihasilkan Zn senilai 75.11% dan O sebesar 24.89%. Hasil uji SEM-EDS (Energy Dispersion Spectroscopy) komposisi yang didapatkan adalah Zn dan O yang menunjukkan telah terbentuknya senyawa ZnO. Berdasarkan hasil analisis tersebut diperoleh konsentrasi atom Seng (Zn) dan Oksigen (O) semakin besar dengan semakin meningkatnya temperatur kalsinasi. Dengan penambahan Cu dan varriasi temperatur tersebut diharapkan mampu meningkatkan jumlah atom Zn, memperbesar sifat kelistrikan serta memperkecil ukuran partikel
EFEKTIVITAS LOTION ANTI NYAMUK DARI FORMULASI EKSTRAK DAUN CENGKEH (Syizigium aromaticum) DAN DAUN KEMANGI (Ocimum basilicium) SUKARTI
Cokroaminoto Journal of Chemical Science Vol. 4 No. 2 (2022)
Publisher : Universitas Cokroaminoto Palopo

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Abstract

Penelitian ini bertujuan untuk mengetahui perbandingan konsentrasi larutan ekstrak daun cengkeh dan daun kemangi yang efektif sebagai lotion anti nyamuk. Daun cengkeh (syzigium aromaticum) dan daun kemangi (ocimum basilicium) adalah tanaman yang banyak dijumpai di Kabupaten Luwu, yang dapat digunakan sebagai anti nyamuk alami karena mengandung komponen senyawa minyak atsiri yang tidak disukai nyamuk. Metode pada penelitian ini melalui preparasi sampel, maserasi dengan menggunakan ethanol 96%, proses destilasi untuk memisahkan pelarut dengan zat terlarut, pembuatan formulasi lotion menggunakan fase minyak dan fase air dengan konsentrasi sampel yang berbeda, kemudian dilakukan empat tahap pengujian yaitu uji organoleptik, uji pH, uji viskositas, dan uji efektivitas untuk mengetahui kelayakan dan keefektifan lotion anti nyamuk dari daun cengkeh (Syzigium aromaticum) dan daun kemangi (Ocimum basilicium). Hasil penelitian diperoleh bahwa perbandingan volume yang efektif digunakan sebagai lotion anti nyamuk dari ekstrak daun cengkeh (Syzigium aromaticum) dan daun kemangi (Ocimum basilicium) yaitu 15 mL ekstrak daun cengkeh dan 20 mL ekstrak daun kemangi dengan perbandingan 3 : 4 dari masing-masing ekstrak.
PENGARUH SUHU PIROLISIS TERHADAP KADAR FIXED CARBON DARI KARBON AKTIF KULIT BATANG SAGU Muhammad Nur Alam
Cokroaminoto Journal of Chemical Science Vol. 4 No. 2 (2022)
Publisher : Universitas Cokroaminoto Palopo

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Abstract

The purpose of this study was to determine the effect of pyrolysis temperature and chemical activation with phosphoric acid on the fixed carbon content of activated carbon and determine the pyrolysis temperature in the manufacture of activated carbon from sago bark in accordance with SNI.6-3730-1995 standards. Sago plants in Luwu Regency, South Sulawesi Province are plants that contain a lot of starch and lignin-cellulose which have the potential to be used as activated carbon. This research was initiated by smoothing the bark of sago stems with a crusher and then pyrolyzed at temperatures of 4000C, 5000C, 6000C and 7000C and then activated with 10% H3PO4. The results of this study obtained Fixed carbon successively 68.64 %; 70.86%; 76.88%; and 80.51% at various pyrolysis temperatures. Data that meets the standard of SNI No. 06-3730-1995 is at a pyrolysis temperature of 7000C, namely the fixed carbon content of 80.51. These results indicate that activated carbon from sago bark can be recommended as activated carbon that can be applied as an adsorbent in various fields.

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