PENGARUH TEMPERATUR HIDROTERMAL TERHADAP KONDUKTIVITAS LISTRIK ZEOLIT SINTETIS DARI ABU DASAR BATUBARA DENGAN METODE ALKALI HIDROTERMAL
DOI:
https://doi.org/10.25077/jfu.4.4.%25p.2015Abstract
ABSTRAK
Telah dilakukan sintesis zeolit berbahan abu dasar batubara dan NaOH sebagai aktivator dengan perbandingan 1 : 1,2 g. Sebelum disintesis, abu dasar batubara diuji menggunakan XRF untuk mengetahui senyawa yang terkandung dalam abu dasar. Sebagai media kristalisasi dalam proses pembentukan kristal zeolit, digunakan air laut melalui proses alkali hidrotermal. Proses alkali hidrotermal dilakukan menggunakan teflon autoclave yang dipanaskan di dalam oven pada variasi temperatur 60 ºC, 80 ºC, 100 ºC, 160 ºC dan 180 ºC selama 6 jam. Zeolit sintetis yang didapatkan kemudian dikarakterisasi menggunakan XRD dan SEM-EDS serta penentuan konduktivitas listrik menggunakan LCR-meter. Hasil pola XRD menunjukkan bahwa sampel mengandung zeolit A, zeolit Na-X, zeolit Na-P, sodalit, kuarsa, hidroksisodalit dan vermikulit. Hasil SEM-EDS memperlihatkan pengaruh perbedaan temperatur proses hidrotermal terhadap permukaan zeolit yang dihasilkan. Zeolit dengan kemurnian yang baik didapatkan pada sampel yang terbentuk pada temperatur 180 ºC dengan tidak ada lagi kuarsa dan hidroksisodalit. Pengukuran konduktivitas listrik menunjukkan bahwa konduktivitas yang dihasilkan berada dalam rentang bahan semikonduktor. Nilai dengan konduktivitas listrik tertinggi terdapat pada sampel yang terbentuk pada proses hidrotermal temperatur 180 ºC yaitu 2,76769 x 10-6 - 12,22794 x 10-6 S/cm.
Kata kunci : zeolit, sintesis, kristalisasi,hidrotermal, konduktivitas, semikonduktor, temperatur
Abstract
The synthesis of zeolite from bottom ash and NaOH as an activator with ratio of 1 : 1,2 g has been conducted. Before synthesized, bottom ash was tested by using XRF. As a medium for the crystallization, sea water used on the alkaline hydrothermal process. Alkaline hydrothermal process carried out using a teflon autoclave heated in an oven with variation temperature of 60 ºC, 80 ºC, 100 ºC, 160 ºC and 180 ºC for 6 hours. Synthetic zeolites tested by using XRD and SEM-EDS and LCR-meter model for electrical conductivity measurement. XRD patterns show that the samples contain zeolite A, zeolite Na-X, zeolite Na-P, sodalite, quarzt, hydroxysodalite, and vermicullite. The SEM-EDS showed influence of hydrothermal temperature on zeolite surface. Synthetic zeolite with good purity obtained on samples of hydrothermal temperature process of 180 ºC with no quarzt and hydroxysodalite content. Measurement of electrical conductivity show, that the conductivity samples obtained are in the range semiconductor. The highest electrical conductivity is about 2.76769 x 10-6 – 12.22794 x 10-6 S/cm is found in the samples with hydrothermal temperature process of 180 ºC.
Keywords : zeolite, crystallization, hydrothermal, conductivity, semiconductor, temperature
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 Yunisa Oktaviani, Afdhal Muttaqin
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Please find the rights and licenses in JFU (Jurnal Fisika Unand).
1. License
The non-commercial use of the article will be governed by the Creative Commons Attribution license as currently displayed on Creative Commons Attribution-NonCommercial 4.0 International License.
2. Authors Warranties
The author warrants that the article is original, written by stated author(s), has not been published before, contains no unlawful statements, does not infringe the rights of others, is subject to copyright that is vested exclusively in the author and free of any third party rights, and that any necessary written permissions to quote from other sources have been obtained by the author(s).
3. User Rights
JFU's spirit is to disseminate articles published are as free as possible. Under the Creative Commons license, JFU permits users to copy, distribute, display, and perform the work for non-commercial purposes only. Users will also need to attribute authors and JFU on distributing works in the journal.
4. Rights of Authors
Authors retain the following rights:
- Copyright, and other proprietary rights relating to the article, such as patent rights,
- The right to use the substance of the article in future own works, including lectures and books,
- The right to reproduce the article for own purposes, provided the copies are not offered for sale,
- The right to self-archive the article.
5. Co-Authorship
If the article was jointly prepared by other authors, the signatory of this form warrants that he/she has been authorized by all co-authors to sign this agreement on their behalf, and agrees to inform his/her co-authors of the terms of this agreement.
6. Termination
This agreement can be terminated by the author or JFU upon two months notice where the other party has materially breached this agreement and failed to remedy such breach within a month of being given the terminating partys notice requesting such breach to be remedied. No breach or violation of this agreement will cause this agreement or any license granted in it to terminate automatically or affect the definition of JFU.
7. Royalties
This agreement entitles the author to no royalties or other fees. To such extent as legally permissible, the author waives his or her right to collect royalties relative to the article in respect of any use of the article by JFU or its sublicensee.
8. Miscellaneous
JFU will publish the article (or have it published) in the journal if the articles editorial process is successfully completed and JFU or its sublicensee has become obligated to have the article published. JFU may conform the article to a style of punctuation, spelling, capitalization, referencing and usage that it deems appropriate. The author acknowledges that the article may be published so that it will be publicly accessible and such access will be free of charge for the readers.