In-situ formed Prussian blue nanoparticles supported by porous biochar as highly efficient removal of cesium ions

Synthesis of a low-silica CHA zeolite with exceptional selectivity for radioactive137Cs+

“…The Gibbs free energy change (Δ G , kJ mol −1 ), enthalpy change (Δ H , kJ mol −1 ) and entropy change (Δ S , kJ (mol k) −1 are the main thermodynamic parameters. These thermodynamic parameters can be calculated according to the following equation 13 :Δ G = − RT ln K d andwhere, K d (L g −1 ) is the distribution coefficient, R is the molar gas constant (8.314 J (mol K) −1 ), and T (K) is the thermodynamic temperature.…”

“…The Gibbs free energy change (ΔG, kJ mol −1 ), enthalpy change (ΔH, kJ mol −1 ) and entropy change (ΔS, kJ (mol k) −1 are the main thermodynamic parameters. These thermodynamic parameters can be calculated according to the following equation 13 :…”

“…As a consequence, radioactive wastewater containing 137 Cs draws increasing concerns. 13,14 On the other hand, as a radioactive source, 137 Cs has important applications in coal exploration, medicine, and agriculture. 8 Therefore, selective removal from nuclear wastewater and subsequent enrichment of 137 Cs are critical for environmental protection, human health, and valuable resource utilization.…”

Magnetic copper hexacyanoferrate core–shell nanoparticles for effective cesium removal from aqueous solutions

“…7 Thus, Cs + ions can migrate rapidly through groundwater to the biosphere, and accumulate in the soft tissues through the food chain, leading to an internal hazards such as thyroid cancer. 8,9 There are a multitude of technologies developed for 137 Cs removal for the nuclear industry, including adsorption, 10,11 coagulation, 12,13 electrodialysis, 14 solvent extraction, 15,16 membrane processing, 17,18 froth flotation, 19,20 chemical precipitation and ion exchange. 21,22 Among these, adsorption is the priority for the remediation of industrial wastewater contaminated by 137 Cs due to its simplicity, efficiency, and low cost.…”

“…7 Thus, Cs + ions can migrate rapidly through groundwater to the biosphere, and accumulate in the soft tissues through the food chain, leading to an internal hazards such as thyroid cancer. 8,9…”