1 research outputs found
Highly Efficient Air Desulfurization on Self-Assembled Bundles of Copper Hydroxide Nanorods
Copper hydroxide and copper hydroxyl
nitrate were successfully synthesized from copper nitrate. A slight
alteration of a base addition pathway led to entirely different chemical
and crystal structures. Structural, morphological, and surface chemical
features were analyzed using various physical and chemical methods.
The copper hydroxide texture consists of self-assembled bundles of
nanorods with a diameter between 15 and 40 nm. They are stack together
forming platelet-like particles. In the case of the copper hydroxyl
nitrate, platelet-like particles with a smooth surface were detected.
The fully hydroxylated sample showed a considerably higher surface
area and mesoporous volume than those of copper hydroxyl nitrate.
Both synthesized materials were used as air desulfurization media
at moist or dry conditions. The results indicate a supreme chemical
adsorption of H<sub>2</sub>S on copper hydroxide. Moisture in air
has a positive effect on the adsorption performance. In humid conditions,
almost 0.9 mol H<sub>2</sub>S/mol of CuÂ(OH)<sub>2</sub> was adsorbed.
CuS with almost a stoichiometric ratio was a product of surface reactions.
The color change of the powder from sapphire blue to dark brown during
the adsorption can be used as a fast indication of the adsorbent exhaustion
level