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All Journal Jurnal Riset Kimia Journal Of Research and Education Chemistry (JREC)
Ilona Bella
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Chemical Engineering, Chemistry & Bioengineering Chemistry Education

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PEMBUATAN DAN KARAKTERISASI KATALIS ZnO/KARBON AKTIF DENGAN METODE SOLID STATE DAN UJI AKTIFITAS KATALITIKNYA PADA DEGRADASI RHODAMIN B Septiani, Upita; Bella, Ilona; -, Syukri
Jurnal Riset Kimia Vol 7, No 2 (2014): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v7i2.186

Abstract

 ABSTRACTComposite catalyst ZnO/Activated Carbon (ZnO/AC) had been synthesized successfully bysolid state method. Synthesis was done by varying the addition of activated carbon (AC) 2%,5%, and 10% ZnO mass. Composite catalyst were calcinated at 400oC and characterized byFTIR (Fourier Transform Infra Red), XRD (X-Ray Diffraction), SEM (Scanning ElectronMicroscopy). Based on the results of FTIR, absorption appeared in the region wave number1400-1600 cm-1, which indicated stretching of C=C was assumed come from AC. From theXRD results, it was known by the addition of AC, not overly change the crystallinity and crystalsize of ZnO, the crystal structure is hexagonal (wurtzite). SEM images showed AC preventedthe agglomeration of ZnO that would expand the surface area of ZnO and increased catalyticactivity of ZnO. For the results of the catalytic activity test, catalyst ZnO/AC was tested on thedegradation of Rhodamine B solution (10 ppm) by UV light irradiation, where the increasingnumber of trains the catalytic ability of ZnO also increased, it could be concluded that activatedcarbon can support to increase the role of ZnO in degrading Rhodamine B.Keywords: composite catalyst, ZnO, activated carbon, solid state, Rhodamine B
PEMBUATAN DAN KARAKTERISASI KATALIS ZnO/KARBON AKTIF DENGAN METODE SOLID STATE DAN UJI AKTIFITAS KATALITIKNYA PADA DEGRADASI RHODAMIN B Upita Septiani; Ilona Bella; Syukri -
Jurnal Riset Kimia Vol. 7 No. 2 (2014): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v7i2.186

Abstract

 ABSTRACTComposite catalyst ZnO/Activated Carbon (ZnO/AC) had been synthesized successfully bysolid state method. Synthesis was done by varying the addition of activated carbon (AC) 2%,5%, and 10% ZnO mass. Composite catalyst were calcinated at 400oC and characterized byFTIR (Fourier Transform Infra Red), XRD (X-Ray Diffraction), SEM (Scanning ElectronMicroscopy). Based on the results of FTIR, absorption appeared in the region wave number1400-1600 cm-1, which indicated stretching of C=C was assumed come from AC. From theXRD results, it was known by the addition of AC, not overly change the crystallinity and crystalsize of ZnO, the crystal structure is hexagonal (wurtzite). SEM images showed AC preventedthe agglomeration of ZnO that would expand the surface area of ZnO and increased catalyticactivity of ZnO. For the results of the catalytic activity test, catalyst ZnO/AC was tested on thedegradation of Rhodamine B solution (10 ppm) by UV light irradiation, where the increasingnumber of trains the catalytic ability of ZnO also increased, it could be concluded that activatedcarbon can support to increase the role of ZnO in degrading Rhodamine B.Keywords: composite catalyst, ZnO, activated carbon, solid state, Rhodamine B
Pengaruh Suhu dalam Pembuatan Fasa Diam Silika Hibrid Monolit sebagai Studi Awal untuk Kromatografi Cair Sistem Kapiler Furqani, Firda; Bella, Ilona; Hillman, Prima Fitria; Lim, Lee Wah
Journal of Research and Education Chemistry Vol. 7 No. 2 (2025): Oktober
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jrec.2025.vol7(2).25260

Abstract

Penelitian ini merupakan studi awal mengenai pembuatan dan karakterisasi fasa diam silika hibrid monolit untuk aplikasi pada kromatografi cair sistem kapiler. Material monolit disintesis melalui metode sol-gel dengan menggunakan trimetoksipropilsilana (TPMS) dan (3-glisidoksipropil)trimetoksisilan (GPTMS) sebagai prekursor silika, yang dimodifikasi dengan asam amino sebagai monomer organik untuk memperkenalkan gugus fungsional aktif pada permukaan. Struktur dan morfologi monolit yang dihasilkan diamati menggunakan mikroskop elektron pemindai (SEM), sedangkan stabilitas mekaniknya dievaluasi melalui pengukuran penurunan tekanan (pressure drop) pada sistem aliran. Uji performa kromatografi dilakukan untuk menilai kemampuan kolom monolit dalam memisahkan dua analit model, yaitu urasil (senyawa polar) dan toluena (senyawa nonpolar). Hasil penelitian menunjukkan bahwa monolit yang disintesis memiliki morfologi berpori homogen dengan adhesi kuat pada dinding kapiler, serta menunjukkan stabilitas mekanik yang baik terhadap tekanan aliran. Kemampuan pemisahan yang ditunjukkan menandakan potensi material silika hibrid monolit ini untuk dikembangkan lebih lanjut sebagai fasa diam pada sistem capillary liquid chromatography (CLC).
Co-Authors Furqani, Firda Hillman, Prima Fitria Lee Wah Lim Syukri - Syukri Syukri Upita Septiani Upita Septiani