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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >In situ synthesis of Zn_2GeO_4 hollow spheres and their enhanced photocatalytic activity for the degradation of antibiotic metronidazole
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In situ synthesis of Zn_2GeO_4 hollow spheres and their enhanced photocatalytic activity for the degradation of antibiotic metronidazole

机译：Zn_2GeO_4空心球的原位合成及其增强的降解甲硝唑的光催化活性

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In this study, Zn_2GeO_4 hollow spheres were successfully fabricated by a template-engaged approach using zinc hydroxide carbonate (Zn_4CO_3(OH)_6·H_2O, ZHC) spheres as the template. During the hydrothermal process, Zn~(2+) dissolved from the surface of the ZHC spheres could rapidly react with the HGeO_3 - in solution and the Zn_2GeO_4 outer shell was formed in situ. Moreover, the building units of the Zn _2GeO_4 hollow spheres could gradually transform from the nanoparticles into nanobundles with the increase of the reaction time. The photocatalytic degradation results indicate that the Zn_2GeO _4 hollow spheres exhibited high photocatalytic activity and excellent stability for the degradation of antibiotic metronidazole in solution. Finally, the radical species involved in the degradation process have been investigated by using the scavenger experiments.
机译：本研究以模板接合法成功地以碳酸氢锌（Zn_4CO_3（OH）_6·H_2O，ZHC）球为模板制备了Zn_2GeO_4空心球。在水热过程中，从ZHC球表面溶解的Zn〜（2+）可以与溶液中的HGeO_3-快速反应，并就地形成Zn_2GeO_4外壳。此外，随着反应时间的增加，Zn _2GeO_4空心球的结构单元可以逐渐从纳米颗粒转变为纳米束。光催化降解结果表明，Zn_2GeO_4空心球对溶液中的甲硝唑降解表现出较高的光催化活性和优异的稳定性。最后，使用清除剂实验研究了降解过程中涉及的自由基。

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