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发明公开
CN110038593A 高效光催化还原Cr（VI）的空心球状C@SnO2@SnS2三元复合物的制备方法 无效 - 撤回

高效光催化还原Cr（VI）的空心球状C@SnO2@SnS2三元复合物的制备方法
摘要：
本发明公开了一种高效光催化还原Cr（VI）的空心球状C@SnO2@SnS2三元复合物的制备方法，采用先将SnO2负载在碳球上通过不完全烧结的方法得到含有大量碳的空心状C@SnO2，随后加入TAA，利用离子交换法在水热过程中制备具有不同硫化程度的空心结构的C@SnO2@SnS2三元复合物，碳、SnO2和SnS2三者之间的协同作用以及空心结构的形貌增强了三元复合物对可见光的吸收利用能力，促进了光生电荷的分离，该空心球状C@SnO2@SnS2三元复合物对Cr（VI）的吸附和可见光催化降解能力显著增强，在可见光下对Cr(VI)具有良好的去除效果。
摘要（英）：

The invention discloses a preparation method of a hollow spherical C@SnO2@SnS2 ternary compound with efficient photocatalytic reduction Cr(VI). The preparation method comprises the following steps: loading SnO2 on carbon spheres, and performing incomplete burning to obtain hollow C@SnO2 containing a large amount of carbon; then adding TAA; preparing hollow C@SnO2@SnS2 ternary compounds of different sulfurizing degrees in a hydrothermal process with an ion exchange method. Through the synergistic effect among carbon, SnO2 and SnS2 as well as the appearance of the hollow structure, the absorption and utilization ability of the ternary compound for visible light is enhanced, and the separation of photogenerated charge is facilitated. The Cr(VI) adsorption and visible light catalytic degradation capabilities of the hollow spherical C@SnO2@SnS2 ternary compound are improved, and a good removing effect is achieved for Cr(VI) under the visible light.

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