Abstract Trithiocyanuric acid trisodium salt hydrate (Na3TMT) has been proved an excellent heavy metal chelating agent and widely applied for heavy metal ions elimination in industrial wastewater. In this work, the chelating products of Bismuth(III) ion with this effective agent were prepared by solid state and liquid phase reactions, and proved as a new kind of n-type semiconductor. For full utilization of resource, the green and low-cost massive Bismuth chelate with good crystallinity, distinctive morphology, appropriate band structure and high stability was applied for photoelectrochemical application and photocatalytic organic pollutants degradation upon visible light. Results indicated that OH radicals were the main reactive specie in the photodegradation process. The combination of heavy metals and organic contaminants removal was achieved by a waste-to-wealth route.

中文翻译：

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作为半导体的重金属废物处理产品：铋（III）螯合物的高效可见光光催化活性

摘要 三硫氰尿酸三钠盐水合物(Na3TMT)已被证明是一种优良的重金属螯合剂，广泛应用于工业废水中重金属离子的去除。在这项工作中，铋(III)离子与这种有效剂的螯合产物通过固相和液相反应制备，并被证明是一种新型的n型半导体。为充分利用资源，将结晶度好、形貌独特、能带结构合适、稳定性高的绿色低成本块状铋螯合物用于光电化学应用和可见光光催化降解有机污染物。结果表明，OH自由基是光降解过程中的主要反应物质。