Emerging contaminants and related health risks restrain aged treatment approaches. A better-premise understanding of water remediation attained by mutual contamination relational realization (MCRR). Precisely engineered Cu₂MgSnS₄ (CMTS) decorated BaTiO₃ (BTO) composites demonstrated a remarkable removal of organic contaminants and inactivation of harmful bacterium. It showed a valuable 97 % degradation of organic dyes and strong bacterial antagonism for both Escherichia coli and Staphylococcus aureus. Implantation of P-type CMTS on the surface of n-type BTO caused formation of a space charge layer (SCL), which affected diffusion of charge carriers. Junction at the interface of constituent materials and built-in electric field increased negative and positive carrier’s separation. Bandgap of the composites decreased from 3.4 eV to 2.6 eV by adjusting the composition of CMTS, which drastically augmented their ability to harvest the visible light. Therefore this study opens a new door for potential photocatalytic applications.

新兴的污染物和相关的健康风险限制了老化的治疗方法。通过相互污染关系实现（MCRR）可以更好地了解水的修复。精确设计的Cu ₂ MgSnS ₄（CMTS）装饰的BaTiO ₃（BTO）复合材料表现出了显着的有机污染物去除和有害细菌灭活的效果。它对大肠杆菌和金黄色葡萄球菌均显示出97％的有价值的有机染料降解和强烈的细菌拮抗作用。在n型BTO的表面上植入P型CMTS会导致形成空间电荷层（SCL），从而影响电荷载流子的扩散。组成材料和内置电场的交界处的结点增加了负载流子和正载流子的间距。通过调节CMTS的组成，复合材料的带隙从3.4 eV降低到2.6 eV，这极大地增强了它们收集可见光的能力。因此，这项研究为潜在的光催化应用打开了一扇新的大门。