Highly efficient and rapid removal of arsenic(iii) from aqueous solutions by nanoscale zero-valent iron supported on a zirconium 1,4-dicarboxybenzene metal-organic framework (UiO-66 MOF)

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Highly efficient and rapid removal of arsenic(iii) from aqueous solutions by nanoscale zero-valent iron supported on a zirconium 1,4-dicarboxybenzene metal-organic framework (UiO-66 MOF)

机译：通过纳米级零价铁（UIO-66 MOF）的纳米尺度零价铁（UIO-66 MOF）高效地从水溶液中高效除去砷（III）的砷（III）

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A zirconium 1,4-dicarboxybenzene metal-organic framework (UiO-66 MOF) was successfully used as a template to enhance the distribution and activity of nanoscale zero-valent iron (NZVI). MOF-NZVI showed good anti-interference ability to co-existing ions (Ca2+, Mn2+, Cu2+, H2PO4- and SO42-) and organic acids (oxalic acid and citric acid). SEM and TEM analyses indicated that the MOF as a support efficiently prevent NZVI from aggregation for quick and effective removal of As(iii). Through the non-linear least-squares (NLLS) adjustment, As(iii) removal by MOF-NZVI could be well fitted by pseudo first and second order reaction kinetics, as well as the Freundlich isotherm. FTIR, XRD and XPS results verified that NZVI and iron oxyhydroxides (Fe3O4, gamma-Fe2O3, gamma-FeOOH and alpha-FeOOH) might be responsible for the effective removal of As(iii) and its oxidized product As(v) with an adsorption capacity of 360.6 mg As per g NZVI through chemical oxidation and physical adsorption. This work indicates that MOF-NZVI with good reusability and high efficiency is promising for application in As(iii)-polluted wastewater treatment.

机译：甲锆1,4-二羧基金属 - 有机骨架（UIO-66 MOF）被成功地用作模板，以增强纳米尺度零价铁（NZVI）的分布和活性。 MOF-NZVI表现出良好的抗干扰能力强，以共存的离子（Ca +，MN2 +，Cu2 +的，H2PO4-和SO 4 2-）和有机酸（草酸和柠檬酸）。 SEM和TEM分析表明，该MOF作为载体有效地防止从NZVI聚集为快速和有效地除去作为（ⅲ）的。通过非线性最小二乘（NLLS）调整，作为（iii）通过MOF-NZVI去除可以通过伪一阶和二阶反应动力学，以及所述Freundlich等温很好地拟合。 FTIR，XRD和XPS的结果证实NZVI和氢氧化铁（Fe3O4的，γ-Fe2O3的，γ-的FeOOH和α-针铁矿）可能负责有效去除作为（iii）和它的氧化产物作为（v）的具有吸附的360.6毫克作为每g NZVI通过化学氧化和物理吸附能力。这项工作表明，MOF-纳米铁具有良好的可重用性和高效率是有希望在作为（III）-polluted废水处理中的应用。

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《RSC Advances》 |2019年第67期|共13页
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1. Highly efficient and rapid removal of arsenic(iii) from aqueous solutions by nanoscale zero-valent iron supported on a zirconium 1,4-dicarboxybenzene metal-organic framework (UiO-66 MOF) [J] . RSC Advances . 2019,第67期

机译：通过纳米级零价铁（UIO-66 MOF）的纳米尺度零价铁（UIO-66 MOF）高效地从水溶液中高效除去砷（III）的砷（III）
2. Highly efficient and rapid removal of arsenic(iii) from aqueous solutions by nanoscale zero-valent iron supported on a zirconium 1,4-dicarboxybenzene metal–organic framework (UiO-66 MOF) [J] . Tingyi Liu, Zhengchao Zhang, Zhaohui Wang, RSC Advances . 2019,第67期

机译：通过纳米级零价铁（UIO-66 MOF）的纳米尺度零价铁（UIO-66 MOF）高效地从水溶液中高效除去砷（III）的砷（III）
3. Investigation of a modified metal-organic framework UiO-66 with nanoscale zero-valent iron for removal of uranium (VI) from aqueous solution [J] . Environmental Science and Pollution Research . 2020,第16期

机译：用纳米尺度零价铁进行改性金属 - 有机框架UIO-66，用于从水溶液中除去铀（VI）
4. Removal of nitrobenzene from aqueous solution by a novel clay-supported nanoscale zero-valent iron material [C] . Shengrong Jia, Aimin Hao, Qiuling Dang, International Conference on Mechatronics, Control and Materials . 2017

机译：通过新型粘土支撑的纳米级零价铁材料从水溶液中除去硝基苯
5. Removal of Arsenic (Iii) and Arsenic (V) from Aqueous Solution via Solanum lycopersicum Phytoremediation and Essential Nutrient Analysis [D] . Garcia Salazar, Grecia W. 2021

机译：通过Solanum Lycopersicum植物修复和基本营养分析从水溶液中除去砷（III）和砷（V）
6. Removal of Arsenic (III V) from aqueous solution by nanoscale zero-valent iron stabilized with starch and carboxymethyl cellulose [O] . Mohammad Mosaferi, Sepideh Nemati, Alireza Khataee, -1

机译：用淀粉和羧甲基纤维素稳定的纳米零价铁从水溶液中去除砷（IIIV）
7. Highly efficient and rapid removal of arsenic(iii) from aqueous solutions by nanoscale zero-valent iron supported on a zirconium 1,4-dicarboxybenzene metal–organic framework (UiO-66 MOF) [O] . Tingyi Liu, Zhengchao Zhang, Zhaohui Wang, 2019

机译：通过纳米级零价铁（UIO-66 MOF）的纳米尺度零价铁（UIO-66 MOF）高效地从水溶液中高效除去砷（III）的砷（III）

Highly efficient and rapid removal of arsenic(iii) from aqueous solutions by nanoscale zero-valent iron supported on a zirconium 1,4-dicarboxybenzene metal-organic framework (UiO-66 MOF)

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