https://commons.ufh.ac.za/vital/access/manager/Index en-us 5 https://commons.ufh.ac.za/vital/access/manager/Repository/vital:7324 Wed 08 May 2024 17:38:35 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:50969 Wed 08 May 2024 16:13:33 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:50959 Wed 08 May 2024 16:09:39 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:51000 Wed 05 Apr 2023 08:51:07 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:50961 0.99. The highest loading capacity of Pt and Pd were 7.4 mg/g and 4.3 mg/g respectively for the nanofiber sorbent material based on ethylenediamine (EDA) while the beads with ethylenediamine (EDA) gave 1.0 mg/g and 0.2 mg/g for Pt and Pd respectively. Metals loaded on the sorbent materials were recovered by using 3% m/v thiourea solution as the eluting agent with quantitative desorption efficiency under the selected experimental conditions. Separation of platinum from palladium was partially achieved by selective stripping of PtCl62- with 0.5 M of NaClO4 in 1.0 M HCl while PdCl42- was eluted with 0.5 M thiourea in 1.0 M HCl. Separation of platinum from iridium and rhodium under 1 M HCl concentration was successful on triethylenetriamine (TETA)-functionalized Merrifield beads. This material (M-TETA) showed selectivity for platinum albeit the low loading capacity.]]> Wed 05 Apr 2023 08:50:56 SAST ]]>