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Preparation, modification and deodorization performance of MCM-41 composite corn stalk
Ist Teil von
Journal of porous materials, 2022-06, Vol.29 (3), p.759-770
Ort / Verlag
New York: Springer US
Erscheinungsjahr
2022
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
A series of MCM-41 and corn stalk (SC) composites (SC-MCM-41) were prepared via hydrothermal method. When measured for a SC-MCM-41 with SC/MCM-41 mass ratio of 1:2, the adsorption time of H
2
S and CH
3
SH can reach 90 min and 80 min, respectively. Whereas, Cu–SC-MCM-41 with copper content of 12.3% exhibited a longer adsorption time, which was 125 min and 90 min for H
2
S and CH
3
SH, respectively. Both SC-MCM-41 and Cu–SC-MCM-41 showed a rough surface with multi-level pore structure dominated by mesopores. Within the composite, the SC and MCM-41 is chemically connected by the C–Si bonds and nitrogen-containing functional groups on the surface. The copper in the Cu–SC-MCM-41 composite mainly exists in the form of CuO and Cu
2
O. Following H
2
S and CH
3
SH adsorption, solid-phase products were deposited on the surface and inside of the Cu–SC-MCM-41 composite, leading to pores blockage with consequent reduction of the adsorption performance.