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All Journal Jurnal Sains Dasar Kaunia: Integration and Interconnection of Islam and Science Journal
Pedy Artsanti
Program Studi Kimia, Fakultas Sains dan Teknologi, UIN Sunan Kalijaga Yogyakarta
Religion Biochemistry, Genetics & Molecular Biology Chemistry Education Mathematics Physics

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THE APPLICATION OF NATURAL ZEOLITE FROM CIAMIS AS TiO2 PHOTOCATALYST SUPPORT FOR RHODAMINE B DYE PHOTODEGRADATION Siti Agusriyanti; Pedy Artsanti
Jurnal Sains Dasar Vol 4, No 1 (2015): April 2015
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.996 KB) | DOI: 10.21831/jsd.v4i1.8447

Abstract

The composite of zeolite-TiO2 was successfully prepared by mixing acid- activated Ciamis natural zeolite and TiO2 Degussa in absolute ethanol. The composite obtained was characterized by XRD, FT-IR and XRF. Zeolite-TiO2 composite was applied in the photodegradation of the dye of Rhodamine B in the variation of contact time (60, 75, 90, 105, 120, and 135 minutes, respectively) and initial concentration (10, 20, 40, 60, 80, 90, and 100 ppm, respectively) of Rhodamine B. The result of XRD, FT-IR, and XRF confirmed that the composite of zeolite-TiO2 was successfully synthesized. The composite showed the optimum photodegradation of Rhodamine B solution when the initial Rhodamine B concentration was 10 ppm, being equivalent to 81.8% of Rhodamine B removal for 105 minutes. Keywords: Natural Zeolit, TiO2, zeolite-TiO2composite, photodegradation, Rhodamine B
KAJIAN ADSORPSI ZAT PENGATUR TUMBUH NAPHTHALENE ACETIC ACID (NAA) TERHADAP BENTONIT ALAM Nura Lailatussoimah; Pedy Artsanti; Irwan Nugraha
Kaunia: Integration and Interconnection Islam and Science Vol. 10 No. 2 (2014)
Publisher : Fakultas Sains dan Teknologi UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/kaunia.1071

Abstract

The study of adsorption of plant growth regulators naphthalene acetic acid (NAA) by using natural bentonite aims to investigate the purification process of bentonite, determine the parameters that affect the ability of optimum adsorption and adsorption interactions of bentonite to NAA. Bentonite purification process is done by adding  30%  H2O2   to  oxidize  organic  compounds  in  the  pores  of  the  bentonite. Adsorption parameters in this study include the influence of the mass of adsorbent, contact time and adsorption capacity of bentonite nature of the NAA. Characteristics conducted in this study include analysis using UV-Vis spectrophotometer, infrared spectrophotometry (FTIR) and X-ray Diffraction (XRD). Bentonite adsorption capacity was determined using the model of Langmuir isotherm and Freundlich isotherm models. This study was showed that the amount of NAA more adsorpted by increase the mass of adsorbent in the adsorption process. The optimum contact time between NAA with natural bentonite is 4 hours on the condition of the masses as much as 0.5 grams of bentonite, pH 4.5 and in room temperature (± 29oC) with adsorption capacity of 1.502 × 10-6 mol/g. The optimum adsorption capacity of bentonite to the NAA at 1.712 × 10-6 mol/g. NAA adsorption isotherms with natural bentonite included in the Freundlich adsorption isotherm which assumes the Van der Waals bonds so that the interaction between  NAA  with  bentonite  was  physically  and  heterogeneous  on  the  multilayer surface.
Co-Authors Irwan Nugraha Nura Lailatussoimah Siti Agusriyanti