Pengaruh Waktu Aging Pada Modifikasi Pori Zeolit Alam Dengan Ctabr

Abstract

Penelitian bertujuan untuk melihat pengaruh waktu aging pada sintesis material mesopori. Material mesopori hasil sintesis dikarakterisasi dengan XRD, FTIR dan fisisorpsi nitrogen. Analisis XRD menunjukkan bahwa variasi waktu aging berpengaruh pada struktur mesopori dari zeolit alam (MZ). Spektrum FTIR menunjukkan adanya silanol dan siloksan pada sampel MZ dan MMZ. Hal ini membuktikan bahwa sampel MZ dan MMZ pada semua variasi waktu aging merupakan material kaya silika. Analisis fisisorpsi nitrogen memberi informasi bahwa penambahan waktu aging menyebabkan diameter pori yang lebih besar dan luas permukaan spesifik yang lebih kecil serta dibandingkan dengan bahan baku (zeolit alam, MZ) karena keterlibatan surfaktan kationik (CTABr) selama sintesis.

Adsorption of Methylene Blue and Methyl Orange from Aqueous Solution using Orange Peel and CTAB-Modified Orange Peel

“…OP has a pore size of 1.780 nm, so it can be categorized as a microporous material, while OP-CTAB has a pore size of 2.045 nm, and it can be classified as a mesoporous material. The presence of CTAB induced the formation of mesopores that can be used for polymers and other large compounds that resulted in better particle dispersion (27). Based on the data, it can be concluded that OP has a large surface area but a microporous pore structure, while OP-CTAB has a small surface area but a mesoporous structure whereby mesopores can produce better particle dispersion than other porous structures.…”

“…BET analysis determines the surface area and pore size, while the BJH (Barrett-Joiner-Halenda) method is used to determine the pore volume. In Based on the pore size, a porous material can be classified into three classes, namely, microporous material (pore size<2 nm), mesopores (pore size 2-50 nm) and macropores (pore size>50 nm) (27). OP has a pore size of 1.780 nm, so it can be categorized as a microporous material, while OP-CTAB has a pore size of 2.045 nm, and it can be classified as a mesoporous material.…”

A Study of Isotherm and Kinetic Models of Methylene Blue and Methyl Orange Adsorption Using Indonesian Natural Zeolite and Agricultural Waste

“…Rice husk ash, bagasse ash, and natural zeolite are cheap and efficient adsorbents that were used as comparative media. Purbaningtias et al [6] have previously reported the usage of those materials to decrease the amount of acid of patchouli oil. Pore modification for those materials become an important step to increase the adsorption process.…”