Pengaruh Impregnasi Ion Logam Cu²⁺ pada Zeolit H(CuₓAl₁₋ₓ)ZSM-5 terhadap Keasaman Permukaan

Isnaini, Masfiah (1999) Pengaruh Impregnasi Ion Logam Cu²⁺ pada Zeolit H(CuₓAl₁₋ₓ)ZSM-5 terhadap Keasaman Permukaan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Keasaman zeolit ZSM-5 dapat ditingkatkan dengan metode impregnasi. Impregnasi ion logam Cu²⁺ ke dalam zeolit H[CuxAl₁₋ₓ]-ZSM-5 dengan x = 0,15 dan 0,25 dilakukan melalui pertukaran ion secara bertingkat. Zeolit H[CuxAl₁₋ₓ]-ZSM-5 dimasukkan dalam larutan CuCl₂ dengan konsentrasi 0,01; 0,10; 1,00 M. Kemudian disaring dan dikalsinasi pada suhu 700°C Cu[CuxAl₁₋ₓ]-ZSM-5 sehingga didapatkan zeolit. Zeolit hasil impregnasi dipelajari dengan adsorpsi amonia, spektroskopi infra merah, difraksi sinar-x dan ekstraksi Cu²⁺. Keasaman dengan harga terbesar yaitu 4,40 µmol/gram diperoleh pada zeolit H₀,₃₇₅Cu₀,₆₂₅[CuxAl₁₋ₓ]-ZSM-5 untuk konsentrasi penukar 0,01 M. Pada zeolit H₀,₃₂₅Cu₀,₆₇₅[CuxAl₁₋ₓ]-ZSM-5 dengan konsentrasi penukar 1,00 M memiliki kapasitas tukar kation tertinggi yaitu 55,40 mek/100 gram.
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The acidic properties of ZSM-5 zeolite could be increase by impregnation methode. H[CuxAl₁₋ₓ]-ZSM-5 zeolites was prepared by impregnating copper(II) ion exchange into in various aqueous 0.01; 0.10; 1.00 M CuCl₂ solution. The Cu[CuxAl₁₋ₓ]-ZSM-5 sample of zeolites was filtered and than calcined in air at 700°C. The resulting zeolites has been identified by ammonia adsorption, IR spectroscopy, x-ray difraction and copper(II) ion extraction. Strongly acidic H₀,₃₇₅Cu₀,₆₂₅[CuxAl₁₋ₓ]-ZSM-5 zeolite was found 4,40 µmol/gram for concentration 0.01 M CuCl₂ solution ion exchange and for H₀,₃₂₅Cu₀,₆₇₅[CuxAl₁₋ₓ]-ZSM-5 zeolite with 1.00 M CuCl₂ solution ion exchange take place a highest cation exchange capacity 55.40 mek/100 gram.

Item Type:	Thesis (Other)
Additional Information:	RSKi 541.33 Isn p
Subjects:	Q Science > QD Chemistry > QD481 Chemical structure.
Divisions:	Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	magang .
Date Deposited:	20 Oct 2026 02:32
Last Modified:	20 Oct 2026 02:32
URI:	http://repository.its.ac.id/id/eprint/145690

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