Preparation and Ammonia Adsorption Performance of Titanium Phosphonate Adsorbent Materials with Hierarchically Porous Structure
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2017年第4期
论文作者：邵高耸 LU Lingang QIAN Xiaodong ZHANG Yiduo
文章页码：823 - 829
摘 要：Titanium phosphonate adsorbent materials with hierarchically porous structure were fabricated using the hydrolysis of tetrabutyl titanate in different organophosphonic acids solutions. Based on the macroporous structure of 100-2000 nm in size, a worm-hole like mesostructure was in the macropore walls, which was supported by the scanning electron microscopy（SEM）, transmission electron microscopy（TEM）, and N2 sorption analysis. Fourier transform infrared spectroscopy（FT-IR） data indicated the organic groups inside the solid materials framework. NH3 adsorption detection was performed using titanium phosphonate adsorbent materials and some significant results were obtained. The adsorption mechanism was also discussed in this study. Large adsorption amount（75.2 mg/g） was mainly attributed to the acid site via acid-base reactions and the physical adsorption site via Van der Waals forces. Resultant materials could effectively restrain the desorption of adsorbent NH3 back into air causing secondary pollution, so it could make a promising potential use in decontamination of gas pollutants in the future.
邵高耸，LU Lingang，QIAN Xiaodong，ZHANG Yiduo
The Chinese People’s Armed Police Forces Academy
摘 要：Titanium phosphonate adsorbent materials with hierarchically porous structure were fabricated using the hydrolysis of tetrabutyl titanate in different organophosphonic acids solutions. Based on the macroporous structure of 100-2000 nm in size, a worm-hole like mesostructure was in the macropore walls, which was supported by the scanning electron microscopy（SEM）, transmission electron microscopy（TEM）, and N2 sorption analysis. Fourier transform infrared spectroscopy（FT-IR） data indicated the organic groups inside the solid materials framework. NH3 adsorption detection was performed using titanium phosphonate adsorbent materials and some significant results were obtained. The adsorption mechanism was also discussed in this study. Large adsorption amount（75.2 mg/g） was mainly attributed to the acid site via acid-base reactions and the physical adsorption site via Van der Waals forces. Resultant materials could effectively restrain the desorption of adsorbent NH3 back into air causing secondary pollution, so it could make a promising potential use in decontamination of gas pollutants in the future.
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