The expeditious augmentation of industry and economics has brought about an increase in the pollution of the aquatic environment, and as a result, there is a prerequisite to remit a pollution status of the process when exploiting new materials. The construction of functional Zr-MOF (UiO-66) materials with layered MgAl-LDH in a hydrothermal synthesis strategy named UL₃ (wt%, UiO-66 : MgAl-LDH = 1 : 3) for the highly efficient photodegradation of diclofenac (DCF) was investigated in the study reported herein. The UL₃/DCF photodegradation system under premium reaction conditions of 10 mg L⁻¹ of DCF, 0.1 g L⁻¹ of UL₃ and 25 °C reached 100% mineralization of DCF within 5 min at pH 4. Quench testing showed that dominant species in the photocatalysis was h⁺, which played synergetic roles during the degradation of DCF. Low metal ion leaching (under 0.25 mg L⁻¹) and co-existing substrates certified the high stability of UL₃ and its good resistance to co-existing substances. This study identifies a viable photocatalyst system for water purification and solar energy utilization.

中文翻译：

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UiO-66/MgAl-LDH 增强光催化降解双氯芬酸：优异的性能和机制


工业和经济的迅速增长，带来了水环境污染的加剧，因此，新材料的开发利用必须要缓解工艺过程的污染状况。采用名为 UL ₃ 的水热合成策略构建具有层状 MgAl-LDH 的功能性 Zr-MOF (UiO-66) 材料（wt%，UiO-66 : MgAl-LDH = 1 : 3）本文报道的研究对双氯芬酸 (DCF) 的高效光降解进行了研究。 10 mg·L ⁻¹ DCF、0.1 g·L ⁻¹ UL ₃ 优质反应条件下的 UL ₃ /DCF 光降解体系25℃、pH 4 下，5 min 内 DCF 达到 100% 矿化。猝灭测试表明，光催化作用中的优势物种为 h ⁺ ，其在 DCF 的降解过程中发挥协同作用。低金属离子浸出（低于0.25 mg·L ⁻¹ ）和共存基材证明了UL ₃ 的高稳定性及其对共存物质的良好抵抗力。这项研究确定了一种可行的光催化剂系统，用于水净化和太阳能利用。