Porosity, characterization and structural properties of natural zeolite - clinoptilolite - as a sorbent

• Autorzy: Mansouri N. , Rikhtegar N. , Panahi H. A. , Atabi F. , Shahraki B. K.
• Języki publikacji: EN

Abstrakty

EN

The characterization and porous structure of raw and modified clinoptilolite as a sorbent has been investigated by nitrogen adsorption, X-ray diffraction, X-ray fluorescence, Fourier transform infrared spectroscopy, differential thermal analysis, scanning electron microscopy and atomic force microscopy methods. The nitrogen adsorption data revealed that the total pore volume and specific surface area were increased after modification. The nitrogen adsorption was used to determine percent of mesoporosity. The TG data show that 14 wt. % of clinoptilolite is lost after heating up to 1200 °C. Two types of porosities - primary porosity (microporosity) and secondary one (meso- and macroporosity) have been observed.

Słowa kluczowe

EN

zeolites; mesoporosity; natural zeolites; nitrogen adsorption; porous structures; clinoptilolite

PL

zeolity; klinoptylolit; mezoporowatość; zeolity naturalne; adsorpcja azotu; struktury porowate

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2013
• Tom: Vol. 39, nr 1
• Strony: 139--152
• Opis fizyczny: Bibliogr. 25 poz., tab., rys., wykr.

Twórcy

autor

Mansouri N.

• Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran

autor

Rikhtegar N.

• Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran

autor

Panahi H. A.

• Department of Chemistry, Islamic Azad University, Central Tehran Branch, Tehran, Iran

autor

Atabi F.

• Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran

autor

Shahraki B. K.

• Iranian Mineral Processing Research Center (IMPRC), Karaj, Iran

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