Investigation of Hexagonal Mesoporous Silica-Supported Composites for Trace Moisture Adsorption

Table 2 Moisture adsorption properties of 20PEI/DHMS and 50PEI/DHMS

Samples	H₂O adsorption capacity (mmol/g)	H content in adsorbents (mmol/g)	Hydrogen efficiency (mol_H2O/mol_H)
20PEI/DHMS	1.23	49.61	0.02
50PEI/DHMS	10.10	77.13	0.13
Zeolite 3A	0.79	–	–

Due to its hydrophobic property, the moisture adsorption capacity on DHMS was not carried out on DHMS