Pengaruh dealuminasi berganda terhadap kemampuan zeolit wonosari sebagai adsorrben alkil benzen sufonat

Apriyani, Endang (2004) Pengaruh dealuminasi berganda terhadap kemampuan zeolit wonosari sebagai adsorrben alkil benzen sufonat. Undergraduate thesis, FMIPA UNDIP.

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Abstract

Zeolit alam Wonosari telah dimodifikasi melalui dealuminasi dan kalsinasi supaya dapat digunakan sebagai asorben alkil benzen sulfonat (ABS). Pada tahap pertama, zeolit di.rendam dalam larutan HF 1. % selarna 10 menit kemudian dilanjutkan perendarnan melalui refluks dalam larutan H.C1 6 N selama 30 men.it untuk mernperoleh zeolit I.. Zeolit TI di.buat dengan. perendarnan zeolit melalui refluks dalam HC1 6 N selama. 30 menit d.an dilanjutkan perendarnan. dal.am NH4C1 0,1 N selama tujuh hart. Setelah proses perendaman dilakukan kalsinasi pada suhu 250 °C dan hidrotermal pada suhu 350 uC masing-masing selama 4 jam. Melaluim.etode metil.en blue active substans (MBAS) dapat diketah.ui besatnya surfaktan ABS yang terserap oleh zeolit. Kea` s'aman zeolit diketahui dengan uji keasam.an. Rasio Si/Al. diketahui. dari data AAS. Luas pennukaan dan ukuran pori diperoleh dari data BET. Hasil penelitian menunjukkan untuk zeolit alam, zeolit I, dan. zeolit H masing-masing kea.sarr.tan. 0,628; 0,776; dan 0,909 g/mol. Luas permukaannya masing-masing 10,20; 47,69; dan 14,55 sqm, den.gan rasio Si/Al 4,354; 8,690; dan 8,371. Jari-jari pori rata-rata zeolit sebesar 11,24; 10,58; dan 10,05 A yang menunjukkan terjadinya. penurunan. Data XRD menunjukkan bahwa kristalinitas zeolit m.enurun terlihat dari puncak-puncaknya. Dart MBAS diketahui bahwa kernampuan adsorbsi zeolit menurun, untuk zeolit alam 57,99 %, zeolit 1 50,84 %, dan zeolit II sebesar 46,88 %. Natural zeolite of Wonosari has been modified by dealumination and calcination. The product was used to adsorb alkil benzene sulfonat (ABS). At first, zeolite was immersed in HF 1 % for 1.0 minutes. Delumination was done by refl:ux in HCI. 6 N for 30 minutes to producct zeolite I and continued by immersed in N17140. 0.1 N for seven days to produce zeolite 1I. Zeol.i.te I and II were calcinated in. furnace at 250 °C and hydrothermal treatment at 350 °C for four hours. Metilen blue active substants (MBAS) was used to determine surfactant concentration that has been. adsorbed by zeolite indirectly. Zeolite acidity was determine by acidity test whereas Si/Al ratio was determine by AAS. Surface area and pore volume were determine by -- BET. The result were showed that natural zeolite, zeolite I, and zeolite II had acidity 0.628; 0.776; and 0.909 glinot, surface area were 10.20; 47.69; and 14.55 aim, and Si/Al ratio were 4.354; 8.690; and 8.371. The average pore radius were 11.24; 10.58; and 10.05 A that showed decreasing. XRD data has been known that ze

Item Type:Thesis (Undergraduate)
Subjects:Q Science > QD Chemistry
Divisions:Faculty of Science and Mathematics > Department of Chemistry
ID Code:31016
Deposited By:Mr UPT Perpus 1
Deposited On:11 Nov 2011 13:00
Last Modified:11 Nov 2011 13:00

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