Studi Kemampuan Adsorpsi Zeolit Alam Terdealuminasi terhadap Senyawa Fenol dan 2-Metoksifenol pada Asap Cair Sekam Padi: Eksperimen dan Komputasi AB Initio

Wempie Gressangga; Suhartana Suhartana; Parsaoran Siahaan

doi:10.14710/jksa.14.3.94-99

DOI: https://doi.org/10.14710/jksa.14.3.94-99

Studi Kemampuan Adsorpsi Zeolit Alam Terdealuminasi terhadap Senyawa Fenol dan 2-Metoksifenol pada Asap Cair Sekam Padi: Eksperimen dan Komputasi AB Initio

Wempie Gressangga, Suhartana Suhartana

, Parsaoran Siahaan

Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia

Published: 1 Dec 2011.

BibTex Citation Data :

@article{JKSA17431,
    author = {Wempie Gressangga and Suhartana Suhartana and Parsaoran Siahaan},
    title = {Studi Kemampuan Adsorpsi Zeolit Alam Terdealuminasi terhadap Senyawa Fenol dan 2-Metoksifenol pada Asap Cair Sekam Padi: Eksperimen dan Komputasi AB Initio},
    journal = {Jurnal Kimia Sains dan Aplikasi},
  volume = {14},
    number = {3},
    year = {2011},
    keywords = {zeolit; dealuminasi; adsorpsi; ab initio; komputasi},
    abstract = {Telah dilakukan penelitian tentang studi kemampuan adsorpsi zeolit alam terdealuminasi terhadap senyawa fenol dan 2-metoksifenol pada asap cair sekam padi. Penelitian ini dilakukan melalui dua pendekatan yaitu eksperimen dan komputasi  ab initio . Dealuminasi zeolit dilakukan dengan pengasaman menggunakan asam HCl dan H 2 SO 4 . Zeolit alam sebelum dan sesudah didealuminasi dianalisis menggunakan Spektroskopi Serapan Atom (SSA). Asap cair sebelum dan sesudah adsorpsi dianalisis menggunakan GC-MS. Pemodelan dilakukan pada tingkat teori HF/6-31G** diperoleh energi interaksi terendah antara segmen dimer tetrahedral zeolit rasio Si-Al 2-0 dengan fenol sebesar -19,3313 kkal/mol dan dengan 2-metoksifenol sebesar -22,1246 kkal/mol. Dealuminasi zeolit alam menggunakan asam HCl 6N diperoleh rasio Si/Al tertinggi sebesar 19,2432. Hasil adsorpsi asap cair diperoleh kadar fenol dan 2-metoksifenol terendah ketika diadsorpsi menggunakan zeolit alam dengan rasio Si/Al tertinggi dengan kadar masing-masing 0,52% dan 28,4%. Dari data tersebut dapat disimpulkan bahwa semakin tinggi rasio Si/Al mampu meningkatkan kemampuan adsorpsi senyawa fenol dan 2-metoksifenol pada asap cair sekam padi, melalui hasil pemodelan juga dibuktikan bahwa segmen tetrahedral zeolit rasio Si-Al tertinggi memiliki energi interaksi terendah terhadap molekul fenol dan 2-metoksifenol.},
   issn = {2597-9914},   pages = {94--99}  doi = {10.14710/jksa.14.3.94-99},
    url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/17431}
}

Citation Format:

Abstract

Telah dilakukan penelitian tentang studi kemampuan adsorpsi zeolit alam terdealuminasi terhadap senyawa fenol dan 2-metoksifenol pada asap cair sekam padi. Penelitian ini dilakukan melalui dua pendekatan yaitu eksperimen dan komputasi ab initio. Dealuminasi zeolit dilakukan dengan pengasaman menggunakan asam HCl dan H₂SO₄. Zeolit alam sebelum dan sesudah didealuminasi dianalisis menggunakan Spektroskopi Serapan Atom (SSA). Asap cair sebelum dan sesudah adsorpsi dianalisis menggunakan GC-MS. Pemodelan dilakukan pada tingkat teori HF/6-31G** diperoleh energi interaksi terendah antara segmen dimer tetrahedral zeolit rasio Si-Al 2-0 dengan fenol sebesar -19,3313 kkal/mol dan dengan 2-metoksifenol sebesar -22,1246 kkal/mol. Dealuminasi zeolit alam menggunakan asam HCl 6N diperoleh rasio Si/Al tertinggi sebesar 19,2432. Hasil adsorpsi asap cair diperoleh kadar fenol dan 2-metoksifenol terendah ketika diadsorpsi menggunakan zeolit alam dengan rasio Si/Al tertinggi dengan kadar masing-masing 0,52% dan 28,4%. Dari data tersebut dapat disimpulkan bahwa semakin tinggi rasio Si/Al mampu meningkatkan kemampuan adsorpsi senyawa fenol dan 2-metoksifenol pada asap cair sekam padi, melalui hasil pemodelan juga dibuktikan bahwa segmen tetrahedral zeolit rasio Si-Al tertinggi memiliki energi interaksi terendah terhadap molekul fenol dan 2-metoksifenol.

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Keywords: zeolit; dealuminasi; adsorpsi; ab initio; komputasi

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In Vol 14, No 3 (2011): Volume 14 Issue 3 Year 2011

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