https://commons.ufh.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 https://commons.ufh.ac.za/vital/access/manager/Repository/vital:4557 Wed 12 May 2021 20:17:39 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:4285 Wed 12 May 2021 19:56:19 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:4293 Wed 12 May 2021 17:24:17 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:4287 0.99. In the column experiment the highest loading capacity of Pt and Pd were 7.4 mg/g and 4.3 mg/g respectively on the nanofiber sorbent material based on ethylenediamine (EDA). The polystyrene and silica-based resins with triethylenetetramine (TETA) functionality (M-TETA and S-TETA) showed selectivity for platinum and palladium, respectively. Metal chlorido complexes loaded on the sorbent materials were recovered by using 3% m/v thiourea solution as teh eluting agent with quantitative desorption efficiency under the selected experimental conditions. The separation of platinum from palladium was partially achieved by selective stripping of PtCl₆²⁻ with 0.5 M of NaClO₄ in 1.0 M HCI with PdCl₄²⁻ was eluted with 0.5 M thiourea in 1.0 M HCI. The selectivity of the M-TETA and S-TETA sorbent materials was proved by column separation of platinum(IV) and palladium(II), respectively, from synthetic solutions containing iridium(IV) and rhodium(III). The loading capacity for platinum on M-TETA was 0.09 mg/g while it was 0.27 mg/g for palladium on S-TETA.]]> Thu 13 May 2021 07:36:09 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:10555 Thu 13 May 2021 03:51:44 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:4291 Thu 13 May 2021 01:46:25 SAST ]]>