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All Journal VALENSI SAINS DAN MATEMATIKA JURNAL KIMIA SAINS DAN APLIKASI Jurnal Sains Dasar ENGINEERING Bulletin of Chemical Reaction Engineering & Catalysis Elkawnie Indonesian Journal of Chemistry Jurnal Kelautan Nasional ASEAN Journal of Chemical Engineering Greensphere: Journal of Environmental Chemistry Jurnal Rekayasa Kimia & Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis
Adi Darmawan
Chemistry Department, Faculty Of Sciences And Mathematics, Diponegoro University, Jl. Prof. Soedarto, SH., Tembalang, Semarang|Diponegoro University|Indonesia
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics

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Journal : Jurnal Sains Dasar

 1 
SYNTHESIS OF MEMBRANES FROM PILLARED CLAY FeCl3 FOR SEAWATER DESALINATION APPLICATION Muslimin, Muslimin; Darmawan, Adi; Lusiana, RA.
Jurnal Sains Dasar Vol 7, No 1 (2018): April 2018
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.888 KB) | DOI: 10.21831/jsd.v7i1.22260

Abstract

Synthesis of membranes has been done using pillared clay FeCl3for desalination application. Pillared clays FeCl3were synthesized via a sol-gel method using [OH] / [Fe] 0.25, 0.5, 1, 2, 2.5. Formed sol-gel was furnace  on 600oC for 2 hours. The membranes which were cooled at room temperature for 3 days then tested filtration of seawater. The results showed that membrane pillared clays FeCl3 with a ratio [OH] / [Fe] 0.25  reached filtration purity 99.99% with the initial TDS 27.58 ppm and  resulted rejection TDS 00.22 ppm after filtration. Membrane with ratio [OH] / [Fe] 0.5 reached filtration purity 80%, with initial TDS   27.58 ppm  and resulted rejection TDS  11.76 ppm,  while membranes with ratio [OH] / [Fe] 1,2 and 2,5 was broken during the filtration proces, its resulted very small rejection. Keywords: membrane, pillared clay, FeCl3, Seawater desalination
SYNTHESIS OF ADSORBENT MAGNETITE SILICA FUNCTIONALIZED CETYLTRIMETHYLAMMONIUM BROMIDE (CTAB) FROM IRON SAND KLAYAR BEACH PACITAN Endang Sawitri; Choiril Azmiyawati; P Siahaan; Adi Darmawan
Jurnal Sains Dasar Vol 7, No 1 (2018): April 2018
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (577.536 KB) | DOI: 10.21831/jsd.v7i1.22243

Abstract

Synthesis of Magnetite Silica cetyltrimethylammonium bromide (magsil-CTAB) had been successfully performed using iron sand Klayar beach as a source of natural magnetite, sodium silicate, HCl, and cetyltrimethylammonium bromide (CTAB). Addition of CTAB on silica magnetite was expected to improve the ability of the adsorbent to adsorb polar compounds such as phenols. Synthesis began with the separation of the magnetite from iron sands by separation magnetically done using permanent magnets. Silica coating on magnetite done via sol-gel method with a ratio 1:20 of magnetite and sodium silicate followed by addition of HCl to form a gel. Gel was dried at a temperature of 80 0C and 350 °C for calcination. Results obtained soaked with CTAB solution with a concentration of 0.5 mM; 1 mM; 2 mM and stirred for 24 hours. Binding of silica and magnetite above the CTAB tested by Fourier Transform Infra Red (FTIR). The presence of silica in magnetite indicated by the appearance of spectra at wave number 900 and 3500-3200 cm-1 indicating the presence of a hydroxyl group of silanol and water molecules. Besides the presence of two strong peaks observed around 1100 and 800 cm-1, respectively show the Si-O-Si asymmetric stretching and bending. From the results of spectra could be seen further there were difference intensity of the main peaks for different samples used, especially on the area around 2300 cm-1 to be a group of nitrile (C-N) and about 3700-3500 cm-1 due to the amide (N-H) of the CTAB as expected. Keywords: magnetite, silica, sol-gel, coating, CTAB
Co-Authors . Widayat Agus Subagio Agus Sufyan Ahmad Kusumaatmaja Ahmad Suseno Andrew Pradana Putra Anna Sumardi Anna Sumardi Aptar Eka Lestari Aptar Eka Lestari Artha Monica Andini Aulia Rahma Azwar Thaib Brigita Maria Listyani Choiril Azmiyawati Choiril Azmiyawati Cut Rahmawati Dwi Rasy Mujiyanti Endang Sawitri Erdina Lulu Atika Rampun Evan Evan Febio Dalanta Hadhi Nugroho Hanifa Zakiyatul Urbach Heru Susanto Indriana Kartini Isna Syauqiah Isna Syauqiah Kristinawati, Leny Lathifah Puji Hastuti Lia Handayani Lia Handayani Linda Suci Wati Linda Suciwati Linda Suyati Listiana Listiana Lusiana, RA. M. Fajar Sidiq, M. Fajar Marta Chandra Anikke Putri Muslimin Muslimin Mustaqim , Muthia Elma Nurhayati Nurhayati Nurhayati Nurhayati P Siahaan Pardoyo Pardoyo Pardoyo Pardoyo Purnomo, Slamet Agus Silviana Silviana Sriatun Sriatun Suhartana Suhartana Wasino Hadi Rahmanto Yanti Mawaddah Yanti Mawaddah Yayuk Astuti Zaini Lambri Assyaifi Zaini Lambri Assyaifi