1 research outputs found
Efficient Phosphate Sequestration in Waters by the Unique Hierarchical 3D <i>Artemia</i> Egg Shell Supported Nano-Mg(OH)<sub>2</sub> Composite and Sequenced Potential Application in Slow Release Fertilizer
<i>Artemia</i> nauplii
are important bait or food sources
in aquaculture, but the egg shells after incubation are always subjected
to discarding as natural wastes; therefore, application and utilization
of the <i>Artemia</i> egg-shell wastes will be an important
issue. Herein, we reported a new hybrid biomaterial by encapsulating
nano-MgÂ(OH)<sub>2</sub> onto discarded <i>Artemia</i> egg
shells for phosphate sequestration enhancement. The unique hierarchically
3D-layered structure of <i>Artemia</i> egg shells can endow
well-defined nano-MgÂ(OH)<sub>2</sub> morphology and efficient phosphate
adsorption performances. The results of the final hybrid biomaterial
exhibit a wide pH dependent sorption process, strong affinity toward
phosphate removal, and large sorption capacity. Moreover, the exhausted
adsorbent shell–Mg-P can be further utilized as slow-release
fertilizer without regular chemical regeneration. The efficient slow-release
behaviors of phosphorus onto Shell–Mg–P for 30 days
indicated the potential applicability as fertilizers. Additionally,
the actual seedling tests further confirm that the shell–Mg–P
can be readily used as a slow-release fertilizer for the soil improvement
and crop productivity