TY - JOUR
T1 - Functionalized hollow siliceous spheres for VOCs removal with high efficiency and stability
AU - Wang, Hongning
AU - Tang, Mei
AU - Zhang, Ke
AU - Cai, Daofei
AU - Huang, Weiqiu
AU - Chen, Ruoyu
AU - Yu, Chengzhong
PY - 2014/3/15
Y1 - 2014/3/15
N2 - Functionalized hollow siliceous spheres (HSSs) have been prepared by surface modification with trimethylchlorosilane (TMCS) for the removal of volatile organic compounds (VOCs). The resultant HSSs-TMCS possesses a uniform and well-dispersed hollow spherical structure, high surface area, large total pore volume, high VOCs adsorption capacity, and small water vapor adsorption capacity. The adsorption and desorption performance of HSSs-TMCS under static (n-hexane and 93# gasoline) and dynamic (n-hexane) conditions was investigated. Compared with commercial silica gel (SG) and activated carbon (AC), HSSs-TMCS show higher capacity of adsorbing n-hexane and 93# gasoline with good stability and low water vapor adsorption capacity under static adsorption conditions, higher dynamic adsorption capacity and stable breakthrough time under dynamic adsorption conditions. The high efficiency and stability of functionalized HSSs are associated with their unique hollow morphology and structure parameters. The designed HSSs-TMCS with high VOCs removal capacity and recyclability are promising candidates for the treatment of air pollution.
AB - Functionalized hollow siliceous spheres (HSSs) have been prepared by surface modification with trimethylchlorosilane (TMCS) for the removal of volatile organic compounds (VOCs). The resultant HSSs-TMCS possesses a uniform and well-dispersed hollow spherical structure, high surface area, large total pore volume, high VOCs adsorption capacity, and small water vapor adsorption capacity. The adsorption and desorption performance of HSSs-TMCS under static (n-hexane and 93# gasoline) and dynamic (n-hexane) conditions was investigated. Compared with commercial silica gel (SG) and activated carbon (AC), HSSs-TMCS show higher capacity of adsorbing n-hexane and 93# gasoline with good stability and low water vapor adsorption capacity under static adsorption conditions, higher dynamic adsorption capacity and stable breakthrough time under dynamic adsorption conditions. The high efficiency and stability of functionalized HSSs are associated with their unique hollow morphology and structure parameters. The designed HSSs-TMCS with high VOCs removal capacity and recyclability are promising candidates for the treatment of air pollution.
KW - Hollow siliceous spheres
KW - Hydrophobic modification
KW - VOCs adsorption
KW - Water vapor adsorption
UR - https://www.scopus.com/pages/publications/84893160424
U2 - 10.1016/j.jhazmat.2013.12.070
DO - 10.1016/j.jhazmat.2013.12.070
M3 - 文章
C2 - 24486614
AN - SCOPUS:84893160424
SN - 0304-3894
VL - 268
SP - 115
EP - 123
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -