The characterization of Sarulla natural zeolite crystal and its morphological structure

• Main Authors: Sihombing, Junifa Layla, Gea, Saharman, Pulungan, Ahmad Nasir, Agusnar, Harry, Wirjosentono, Basuki, Hutapea, Yasir Arafat
• Format: Conference Proceeding
• Language: English
• Subjects: Crystal structure; Fourier transforms; Gas absorption; Morphology; Scanning electron microscopy; Wavelengths; X-ray diffraction; Zeolites
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/1.5082467

The identification of morphology and structure of Natural Zeolite from Sarulla, Tapanuli Utara, Indonesia had been conducted. The X-ray diffraction (XRD) analysis indicated that the natural zeolite had a difractogram peak of 20-30° θ. Moreover, the XRD pattern showed that the dominant phases of the zeolite were containing mordenite and clinoptilolite crystal. Fourier Transform Infrared (FTIR) spectroscopy indicated that TO4 ([SiO4]−4and [AlO4]−5 groups appeared in the wavenumber of 1040.61 cm−1 and shifted to 1053.15 cm−1 after the acid activation and calcination process. In addition, the characterization through Scanning Electron Microscopy (SEM) method indicated that there was no significant difference in morphological surface among the samples. Then, the gas absorption analysis through Brunauer-Emmett and Teller (BET) method indicated that there was an increasing trend of surface area, pore volume and pore diameter from Sarulla Natural Zeolite (SNZ) to Sarulla Natural Zeolite–Acid Activated (SNZ-AA) and Sarulla Natural Zeolite–Calcinated (SNZ-Cal) and indicated as mesoporous materials.