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Budhi Oktavia
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Jurnal Periodic Jurusan Kimia UNP
Published by Universitas Negeri Padang
ISSN : -     EISSN : 23391197     DOI : https://doi.org/10.24036/p.v11i2.113715
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology
Periodic adalah jurnal nasional yang berisi artikel-artikel bidang ilmu kimia, seperti bidang Kimia Analitik, Kimia Fisika, Kimia Anorganik, Kimia Organik dan Biokimia. Jurnal ini mempublikasikan hasil penelitian original, komunikasi singkat, dan artikel review. Artikel yang telah diterbitkan dalam jurnal ini berarti bahwa kegiatan penelitian yang diterbitkan adalah belum, dan tidak akan diterbitkan di tempat lain. Periodic (e-ISSN 2339-1197) diterbitkan oleh Jurusan Kimia dan mulai tahun 2022 disebut Departemen Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Padang, Indonesia. Periodic terbit berdasarkan berdasarkan surat edaran Direktorat Jenderal Pendidikan Tinggi No. 152/E/T/2012 tentang publikasi karya tulis ilmiah dan terbit sejak Oktober 2012.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 343 Documents
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Sintesis, Karakterisasi dan Aplikasi Karbon Aktif dari Kulit Pisang Muhammad Patly; Edi Nasra; Sri Benti Etika; Umar Kalmar Nizar
Jurnal Periodic Jurusan Kimia UNP Vol 9, No 1 (2020): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (345.077 KB) | DOI: 10.24036/p.v9i1.108821

Abstract

Active Carbon from biomassa has been ideal material as absorbent of pollutant chemistry. Banana peel is a biomassa contain about 60% carbohydtrate and its existence is abundant in nature, it causes banana peel is great for making active carbon. This review is combination from some researches about active carbon from banana peel. It aims to comprehend the carbon active synthesis from banana peel, characterization of active carbon and application active carbon as absorbent chemical pollution. The result from this review show characteristic of active carbon as functional groups,crystalline structure, surface morphology, pore size and pore volume, percentage of absoption and absorption capacity of active carbon to pollutant chemistry.
Pengaruh Penambahan Prebiotik Inulin dari Bengkoang (Pachyrhizus erosus) terhadap Organoleptik Sinbiotik Set Yoghurt Fatimah Jora; Minda Azhar; Edi Nasra
Jurnal Periodic Jurusan Kimia UNP Vol 10, No 1 (2021): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (181.342 KB) | DOI: 10.24036/p.v10i1.110315

Abstract

Improving the quality of yoghurt can be done by adding prebiotics, known as yoghurt synbiotic sets. This study aims to determinine the effect of adding prebiotic inulin from bengkoang (Pachyrhizus erosus) to the synbiotic organoleptic of yoghurt sets. This research is an experimental research. The yoghurt synbiotic set was made with inulin concentration variations of 0.1%,0.3%,0.5% with an incubation time of 20 hours at 37˚C. Organoleptic data were processed statistically using the Wilcoxon test with a significance level of α=0.05%. Organoleptic test results showed that the addition of 0.3% inulin concentration did not have a significant effect on the sour aroma, white color and solid texture of the yoghurt set compared to without the addition of inulin. The results of wilcoxon analysis at α=0.05 on organoleptic test showed that there was no significant difference in the color, aroma and texture of the yoghurt set.
Pengaruh Waktu Aging Terhadap Kristalinitas dan Ukuran Partikel Silika Mesopori Fila Delvia; Syamsi Aini
Jurnal Periodic Jurusan Kimia UNP Vol 9, No 2 (2020): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (361.586 KB) | DOI: 10.24036/p.v9i2.110419

Abstract

Mesoporous silika with a pore diameter of 2-50 nm can be used in various fields such as adsorption, sensor, medicine, immobilization of metal nanoparticles in catalyst synthesis and stationary phase for chromatography. Mesoporous silika synthesis was carried out using sodium silicate form rijang stone West Sumatera. Mesoporous silica was synthesized using the sol-gel method. Synthesis was carried out to determine the effect of aging time (24 hours and 48 hours) on the crystallity and particle size of mesoporous silica. Mesoporous silica was characterized using XRD (X-Ray Difraction) to see the crystallinity of the silica and the crystal size of the resulting sample. The result of XRD data measurement showed tha the peaks appeared at a high angle of 2Ɵ=23o, a large mesoporous silica particle size and high crystallinity were obtained at 24 hours of aging.
Degradasi Zat Warna Methyl Orange dengan Katalis ZnO-Co Menggunakan Metode Fotosonolisis Laila Suryani; Hary Sanjaya; Yohandri Yohandri
Jurnal Periodic Jurusan Kimia UNP Vol 10, No 2 (2021): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1047.3 KB) | DOI: 10.24036/p.v10i2.112427

Abstract

Degradation of methyl orange was carried out with variations in time of 30, 60, 90, 120, 150, 180, 210, 240 minutes and variations in doped catalyst concentrations of 5%, 10%, 15%, 20%, 25% using the photosonolysis method. The results showed that the maximum degradation time of methyl orange was 210 minutes with a degradation percentage of 76.1216%. The variation in the concentration of catalyst for the degradation of methyl orange obtained a maximum concentration of 5% with a degradation percentage of 20.1045%. The band gap value of 5% ZnO-Co catalyst performed using UV-Vis Diffuse Reflectance Spectroscopy (DRS) was 3.21 eV.
Pengaruh pH dan Konsentrasi Larutan Terhadap Penyerapan Zat Warna Rhodamin B Menggunakan Biosorben Kulit Pisang Kepok (Musa Balbisiana Colla) Rahmatika, Aljumaatul; Nasra, Edi; Dewata, Indang; Sanjaya, Hary
Periodic Vol 8, No 2 (2019): PERIODIC
Publisher : Jurusan Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.431 KB) | DOI: 10.24036/p.v8i2.108804

Abstract

Abstract ─ Pollution that occurs in the community is caused by solid or liquid waste. One of the pollutants that are discharged into the environment are dyes. The dye waste originates from the coloring and dyeing process which is discharged directly in large quantities into the environment without prior processing. While the environment has certain limits to degrade the incoming compounds or dyes. One alternative method used to remove Rhodamin B dyes is the biosorption method. This method is believed to be able to eliminate pollutants in the waters because of its absorption which is quite effective at a relatively low cost, easy workmanship and the materials used are easily obtained such as kepok banana peels. This research uses the Batch method by looking at the effect of pH and concentration of the solution on the absorption of Rhodamin B by kepok bananas (Musa balbisiana Colla). The results showed that the optimum conditions occurred at pH 3 with 58% absorption of Rhodamin-B, concentration of 120 mg / L with 96% absorption of Rhodamin-B. The interaction between adsorbent and adsorbate is determined by the study of adsorption isotherms including the Langmuir isotherm and the Freundlich isotherm. In order to obtain Langmuir equilibrium with qmax of 25.9067 mg/g. Characterization of kepok banana peel using FTIR to see functional groups after activation.Keywords : Biosorption, Rhodamin-B, kepok banana peel (Musa balbisiana Colla), Batch method                           
Kelarutan CdS dan CuS dalam Gelasi Mikroemulsi Water In Oil Sistem Air, Surfaktan SDBS dan Pentanol Rahmi Fauziah; Minda Azhar; Hary Sanjaya; Ali Amran
Jurnal Periodic Jurusan Kimia UNP Vol 9, No 2 (2020): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1217.19 KB) | DOI: 10.24036/p.v9i2.109586

Abstract

Surfactants are active compounds that act on the surface of a liquid, which can reduce the surface tension between oil and water. The purpose of this study was to determine the solubility of yellow and black inorganic pigments in water in oil microemulsion gelation, which was applied to ballpoint ink. The method used for sol preparation is the gelation method (sol-gel process). The sol gel process is the process of forming inorganic compounds through chemical reactions in solution, and occurs at a temperature of 65oC. The sol gel process undergoes a phase change from the colloid suspension (sol) and finally forms a network called a gel. Dye solubility was observed by the amount of yellow and black inorganic pigment solutes in water in oil microemulsion. The solubility of the yellow pigment is 0.096 grams, while the black pigment is 0.088 grams. To see the density of the pigment, a density test was carried out. The total density produced in yellow inorganic pigment is 0.933 gram / cm3 and black inorganic pigment is 0.914 gram / cm3. Measurement of the refractive index and turbidity (turbidity) to determine the homogeneity of the yellow and black pigments was carried out using an ABBE refractometer and a turbidimeter. The results of the refractive index measurement are associated with pigment solubility, the greater the pigment solubility, the higher the refractive index and turbidity values.
Sintesis Zat Warna Prussian Blue Fe4[Fe(CN)6]3 Berbahan Pasir Besi Alam Muthiara Wahyuni; Syamsi Aini
Jurnal Periodic Jurusan Kimia UNP Vol 10, No 1 (2021): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (155.512 KB) | DOI: 10.24036/p.v10i1.110485

Abstract

Sijunjung iron sand has different chemical composition and properties and high magnetic susceptibility compared to other iron sands in West Sumatra so it requires different reaction conditions. The existing iron sand needs to be increased in economic value by using it as a basic material for the manufacture of dyes. Several dyes such as red, yellow and black have been synthesized which are based on iron sand. Prussian Blue with the formula Fe4[Fe(CN)6]3 was synthesized so that all the basic colors are met. Prussian Blue was synthesized by coprecipitation method at room temperature by varying the mass of K4[Fe(CN)6]. The addition of the K4[Fe(CN)6] mass makes the resulting color brighter and closer to the standard Prussian blue. The synthesized products characterized using the Prussian Blue UV-Vis Spectrophotometer did not meet the standards because some unwanted peaks appeared indicating the resulting material was impure, while characterization using FTIR could identify the presence of Prussian Blue-forming groups.
Adsorpsi Zat Warna Rhodamin B Menggunakan Senyawa C-SinamalKaliks[4]Resorsinarena (CSKR) dengan Metoda Batch Ranti Septiana; Sri Benti Etika; Edi Nasra
Jurnal Periodic Jurusan Kimia UNP Vol 9, No 1 (2020): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (195.812 KB) | DOI: 10.24036/p.v9i1.108808

Abstract

AbstrakPertumbuhan penduduk yang semakin pesat menyebabkan banyak timbulnya masalah lingkungan, salah satunya pencemaran zat warna Rhodamin B di perairan. Perlu dicari alternatif untuk menguraikan limbah cair yang mengandung zat warna Rhodamin B tersebut. Salah satu metode yang efektif dalam pengendalian air akibat zat warna adalah melalui metode adsorpsi dengan sistem batch. Senyawa C-SinamalKaliks[4]Resorsinarena (CSKR) merupakan senyawa hasil sintesis dari limbah minyak kayu manis yang berpotensi besar dikembangkan sebagai adsorben zat warna berbahaya. Tujuan dari penelitian ini adalah untuk mengetahui kapasitas serapan maksimum dari CSKR terhadap Rhodamin B menggunakan parameter kondisi optimum yang diperkirakan mempengaruhi penyerapan Rhodamin B tersebut. Parameter yang digunakan pada penelitian ini meliputi pH, konsentrasi, kecepatan pengadukan dan waktu kontak. Pengujian untuk membuktikan metode analisis yang digunakan telah memenuhi persyaratan adalah dengan melakukan validasi metode analisis. Hasil penelitian menunjukkan kondisi optimum untuk penyerapan Rhodamin B terjadi pada pH 7, konsentrasi 100 mg/L, kecepatan pengadukan 200 rpm dan waktu kontak 60 menit. Kapasitas adsorpsi CSKR terhadap Rhodamin B adalah sebesar 11,3542 mg/g. Adsorpsi Rhodamin B oleh CSKR cenderung mengikuti pola isoterm Langmuir dengan nilai koefisien determinan (R) sebesar 0,662. Pada hasil analisis tersebut dilakukan validasi yang meliputi uji keseksamaan (presisi) serta LOD dan LOQ. Nilai uji presisi (% RSD) Rhodamin B yang dihasilkan sebesar 1,92 %. Nilai LOD dan LOQ pada metode analisa yang digunakan adalah 0,02487 mg/L dan 0,08291 mg/L. Hasil uji tersebut menunjukkan bahwa metode yang dilakukan telah memenuhi validasi yang baik. Kata Kunci : Adsorpsi, C-SinamalKaliks[4]Resorsinarena (CSKR), Rhodamin B, kapasitas adsorpsi
Teknologi Solidifikasi/Stabilisasi Secara Termal Menggunakam Tanah Liat (Clay) Dan Fly Ash Irma Kurnia Fitri; Jon Efendi
Jurnal Periodic Jurusan Kimia UNP Vol 10, No 1 (2021): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1237.183 KB) | DOI: 10.24036/p.v10i1.109585

Abstract

Industrial wastes generated from various industrialization activities usually contain a variety of toxic heavy metals. The resulting heavy metal is very toxic and is detrimental to the health of living things. Various technologies have been developed to deal with heavy metal waste. One of them is the method of remediation of solidification / stabilization. In this review, what will be discussed is the method of thermal solidification / stabilization. Thermal technology in the method of solidification / stabilization is a very useful method with low cost and simple methods. Stabilized metal waste can be obtained as building materials such as bricks. Vitrification or thermal methods are thermal waste treatments that convert waste into glass or crystalline materials. Most of these methods operate at 1200 ° C. In the study (I.B. Singh, 2006) solidification / thermal stabilization using fly ash binder and clay. In his research using thermal combustion temperatures of 850 ° C, 900 ° C and 950 ° C. Thermal treatment with fly ash and clay binder can reduce contaminants to the maximum.
Pengaruh pH dan Ukuran Partikel Terhadap Penyerapan Malachite Green Menggunakan Biosorben Dari Kulit Langsat (Lancium domesticum) Sutan M Razali; Desy Kurniawati; Edi Nasra; Miftahul Khair
Jurnal Periodic Jurusan Kimia UNP Vol 11, No 1 (2022): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/p.v11i1.113477

Abstract

The malachite green dye is one of the harmful dyes produced from various textile industry wastes and needs to reduce by the presence of the waste. The biosorption method is one of the alternative methods used to remove the concentration of malachite green. Biosorption using langsat peel biosorbent proved to be able to absorb malachite green dye. This study using the coloum method by varying the pH of the MG solution and particle size of the biosorbent. In this research, spectronics were used to measure the concentration of the solution and analyze the functional groups on langsat peel before activation, after activation, and after contact using FTIR. Based on the results of the study, it was found that the optimum conditions for each variation were at solution pH 5  with an adsorption rate of 4.962 mg/g and particle size of biosorbent 106 m with an adsorption rate of 15.376 mg/g.

Page 15 of 35 | Total Record : 343

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