Comprehensive evaluation of cobalt incorporated cryptomelane-type manganese oxide molecular sieve as an efficient adsorbent for enhanced removal of europium from wastewater systems

Green synthesis of a potential magnetic and mesoporous EG-nZVI/CA-MCM41 nanocomposite for reductive sorption of europium

“…This process is critical to the mechanism of Eu(III) sorption. The estimated pH ZPC value is lower than that in many reports in the literature for the amidoximated polyacrylonitrile/ montmorillonite composite (i.e., pH ZPC = 4.3), 72 cobalt incorporated cryptomelane-type manganese oxide molecular sieve for Eu(III) removal (pH ZPC = 4.38) 73 and for the amidoxime-functionalized hydrothermal carbon support (pH ZPC = 4.7). 74 The speciation diagram was obtained with the use of Medusa_32 software.…”

Enhanced removal performance and evaluative interaction mechanism of europium from an aqueous medium by microbial yeast-decorated zeolitic imidazolate framework hybrids

“…With the increase in adsorbent concentration, more active binding sites might be supplied by ZIF-8, yeast and ZIF-8/yeast hybrids to generate complexes with Eu( iii ) causing an increase in Eu( iii ) removal proportion. 26 It was very obvious that the removal proportion of Eu( iii ) might not unboundedly strengthen with the increase in the adsorbent concentration. In actually practical wastewater disposal processes, it was feasible to adopt appropriate adsorbent concentration in terms of the initial heavy metal dosage, especially disposal standards, in order to diminish the cost of disposal and treatment.…”