Capturing 1,3-butadiene by the highly ordered Al-containing SBA-15.
This investigation examined the instantaneous adsorption of 1,3-butadiene by aluminum-modified mesoporous silica SBA-15 at ambient temperature. To efficiently trap the 1,3-butadiene pollutant in environment, alumina was incorporated in SBA-15 through various pathways such as one-pot synthesis, solid state grinding and impregnation, and the property-function relation of resulting composites were characterized with XRD, N(2) adsorption-desorption, FTIR and NH(3)-TPD techniques. Adsorption of N-nitrosopyrrolidine (NPYR) was employed for the first time to reveal the difference between the mesoporous silica with the same Al-content but prepared with different methods, providing a potential method for the delicate characterization. Modification with alumina significantly increased the capability of SBA-15 to adsorb 1,3-butadiene, and the one-pot synthesized sample exhibited a higher activity than the post-modified samples, resulting from the formation of Brønsted acidic sites and reservation of silianol groups on SBA-15 host.
Gao
Ling
L
Key Laboratory of Mesoscopic Chemistry of MOE, College of Chemistry and Chemistry Engineering, Nanjing University, Gu-lou, Nanjing 210093, China.
Gu
Fang Na
FN
Zhou
Yu
Y
Yang
Jing
J
Wang
Ying
Y
Zhu
Jian Hua
JH
D000327:Adsorption; D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution; D000535:Aluminum / Q000737:chemistry*; D002070:Butadienes / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry; D004784:Environmental Monitoring; D005740:Gases; D007221:Industry; D012822:Silicon Dioxide / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
D000393:Air Pollutants; D002070:Butadienes; D005740:Gases; C509969:SBA-15; D002244:Carbon; D012822:Silicon Dioxide; D000535:Aluminum; C031763:1,3-butadiene