Department of Chemistry, H.C. Brown Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA.
Chemistry. 2023 Feb 1;29(7):e202202364. doi: 10.1002/chem.202202364. Epub 2022 Dec 12.
The separation of tellurium from cadmium telluride is examined using a unique combination of mild, anhydrous chlorination and complexation of the subsequent tellurium tetrachloride with 3,5-di-tert-butylcatecholate ligands (dtbc). The resulting tellurium complex, Te(dtbc) , is isolated in moderate yield and features a 10 to 10 reduction in cadmium content, as provided by XRF and ICP-MS analysis. Similar results were obtained from zinc telluride. A significant separation between Te, Se, and S was observed after treating a complex mixture of metal chalcogenides with this protocol. These three tunable steps can be applied for future applications of CdTe photovoltaic waste.
使用温和的无水氯化和随后的碲四氯化物与 3,5-二叔丁基邻苯二酚配体（dtbc）的络合的独特组合来检查碲与碲化镉的分离。所得的碲配合物 Te(dtbc)以中等产率分离出来，并且 XRF 和 ICP-MS 分析表明镉含量降低了 10 到 10。从碲化锌中也得到了类似的结果。在用该方法处理复杂的金属硫属化物混合物后，观察到 Te、Se 和 S 之间有明显的分离。这三个可调节的步骤可用于未来的 CdTe 光伏废料应用。
