Literature DB >> 26573315

Utilization of rice husk silica as adsorbent for BTEX passive air sampler under high humidity condition.

Thanita Areerob1,2, Nurak Grisdanurak3,4, Siriluk Chiarakorn5,6.   

Abstract

Selective adsorbent of benzene, toluene, ethylbenzene, and xylenes (BTEX) was developed based on mesoporous silica materials, RH-MCM-41. It was synthesized from rice husk silica and modified by silane reagents. The silane reagents used in this study were trimethylchlorosilane (TMS), triisopropylchlorosilane (TIPS), and phenyldimethylchlorosilane (PDMS). Physiochemical properties of synthesized materials were characterized by small-angle X-ray diffraction (XRD), Fourier-transformed infrared spectroscopy (FTIR), and surface area analysis. Materials packed in passive air sampler were tested for BTEX uptake capacity. The tests were carried out under an influence of relative humidity (25 to 99 %). Overall, RH-MCM-41 modified by TMS outperformed compared to those modified by other silane agents. The comparative BTEX adsorption on this material and commercial graphitized carbon black was reported.

Entities:  

Keywords:  BTEX; Humidity; Passive air sample; Rice husk

Mesh：

Substances：

Year:  2015        PMID： 26573315     DOI： 10.1007/s11356-015-5768-9

Source DB:  PubMed          Journal:  Environ Sci Pollut Res Int        ISSN： 0944-1344            Impact factor:   4.223


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