Synthesis of Diatomite-Loaded κ-Carrageenan-Based Hydrogels and Investigation of Their Efficiency in the Removal of Strontium Ions

Project no. 32576 · Status: Kapanmış · 2024

Summary

<p><span style="color: rgb(0, 0, 0);">Nuclear&nbsp;power&nbsp;plants&nbsp;are&nbsp;actively&nbsp;used&nbsp;worldwide&nbsp;for&nbsp;electricity&nbsp;generation.&nbsp;However,&nbsp;the&nbsp;radioactive&nbsp;wastes&nbsp;produced&nbsp;by&nbsp;these&nbsp;plants&nbsp;are&nbsp;considered&nbsp;hazardous&nbsp;pollutants.&nbsp;The&nbsp;release&nbsp;of&nbsp;radioactive&nbsp;elements&nbsp;into&nbsp;ecosystems&nbsp;has&nbsp;the&nbsp;potential&nbsp;to&nbsp;accumulate&nbsp;in&nbsp;animals&nbsp;and&nbsp;plants,&nbsp;which&nbsp;may&nbsp;lead&nbsp;to&nbsp;serious&nbsp;risks&nbsp;to&nbsp;human&nbsp;health&nbsp;and&nbsp;the&nbsp;environment.</span></p><p><span style="color: rgb(0, 0, 0);">Within&nbsp;the&nbsp;scope&nbsp;of&nbsp;this&nbsp;proposed&nbsp;project,&nbsp;it&nbsp;is&nbsp;aimed&nbsp;to&nbsp;synthesize&nbsp;diatomite-loaded&nbsp;κ-carrageenan-based&nbsp;hydrogels&nbsp;with&nbsp;different&nbsp;concentrations&nbsp;and&nbsp;to&nbsp;use&nbsp;them&nbsp;as&nbsp;adsorbents&nbsp;for&nbsp;the&nbsp;removal&nbsp;of&nbsp;strontium&nbsp;ions&nbsp;from&nbsp;aqueous&nbsp;solutions.</span></p><p><span style="color: rgb(0, 0, 0);">The&nbsp;synthesized&nbsp;materials&nbsp;will&nbsp;be&nbsp;characterized&nbsp;using&nbsp;XRD,&nbsp;SEM-EDX,&nbsp;FT-IR,&nbsp;XPS,&nbsp;and&nbsp;TGA&nbsp;techniques.&nbsp;In&nbsp;the&nbsp;batch&nbsp;adsorption&nbsp;experiments&nbsp;for&nbsp;strontium&nbsp;removal,&nbsp;the&nbsp;effects&nbsp;of&nbsp;various&nbsp;parameters&nbsp;such&nbsp;as&nbsp;pH,&nbsp;concentration,&nbsp;contact&nbsp;time,&nbsp;and&nbsp;temperature&nbsp;will&nbsp;be&nbsp;investigated.&nbsp;The&nbsp;adsorption&nbsp;data&nbsp;obtained&nbsp;will&nbsp;be&nbsp;evaluated&nbsp;for&nbsp;their&nbsp;conformity&nbsp;with&nbsp;isotherm&nbsp;models&nbsp;such&nbsp;as&nbsp;Langmuir,&nbsp;Freundlich,&nbsp;and&nbsp;Dubinin–Radushkevich&nbsp;(D–R).&nbsp;Based&nbsp;on&nbsp;the&nbsp;contact&nbsp;time&nbsp;studies,&nbsp;the&nbsp;adsorption&nbsp;kinetic&nbsp;model&nbsp;will&nbsp;be&nbsp;determined.&nbsp;Thermodynamic&nbsp;parameters&nbsp;including&nbsp;standard&nbsp;enthalpy,&nbsp;standard&nbsp;entropy,&nbsp;and&nbsp;Gibbs&nbsp;free&nbsp;energy&nbsp;will&nbsp;be&nbsp;calculated&nbsp;using&nbsp;the&nbsp;results&nbsp;of&nbsp;temperature-dependent&nbsp;experiments.&nbsp;In&nbsp;addition,&nbsp;desorption&nbsp;studies&nbsp;will&nbsp;be&nbsp;conducted&nbsp;to&nbsp;investigate&nbsp;the&nbsp;reusability&nbsp;of&nbsp;the&nbsp;adsorbent,&nbsp;and&nbsp;optimum&nbsp;operating&nbsp;conditions&nbsp;will&nbsp;be&nbsp;determined.</span></p><p><span style="color: rgb(0, 0, 0);">According&nbsp;to&nbsp;the&nbsp;literature&nbsp;survey&nbsp;conducted,&nbsp;no&nbsp;study&nbsp;has&nbsp;been&nbsp;found&nbsp;that&nbsp;investigates&nbsp;the&nbsp;synthesis&nbsp;of&nbsp;diatomite-enriched&nbsp;κ-carrageenan&nbsp;physical&nbsp;hydrogels&nbsp;and&nbsp;their&nbsp;potential&nbsp;as&nbsp;adsorbents&nbsp;for&nbsp;the&nbsp;removal&nbsp;of&nbsp;Strontium(II)&nbsp;ions.&nbsp;Therefore,&nbsp;it&nbsp;is&nbsp;believed&nbsp;that&nbsp;the&nbsp;successful&nbsp;implementation&nbsp;of&nbsp;this&nbsp;original&nbsp;project&nbsp;will&nbsp;make&nbsp;a&nbsp;significant&nbsp;scientific&nbsp;contribution&nbsp;to&nbsp;the&nbsp;literature.</span></p>

View details