Exceptional adsorption of arsenic by zirconium metal-organic frameworks: Engineering exploration and mechanism insight

He, Xingyu; Deng, Fang; Shen, Tingting; Yang, Liming; Chen, Dezhi; Luo, Junxiang; Min, Xiaoye; Wang, Fang

doi:10.1016/j.jcis.2018.12.065

Cited by 242 publications

(93 citation statements)

References 66 publications

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“…In 2019, two stable Zr‐based MOFs (UiO‐66 and UiO‐66(NH 2 )) had been prepared to eliminate arsenic ions . At the pH of 9.2, UiO‐66 exhibited removal capacity values of 205.0 and 68.21 mg g −1 for As III and As V , respectively within 20 min.…”

Section: Adsorption Of One Metal Ionmentioning

confidence: 99%

Section: Adsorption Of One Metal Ionmentioning

confidence: 99%

“…In another work, the facile one‐step hydrothermal approach was used to enter the famous MOF MIL‐101(Fe) into the layers of graphene oxide (GO) in sandwich structure form in order to remove Pb II from solution as shown in Figure . During this synthesis process, MIL‐101(Fe)/GO exhibits a significant lessen in specific surface area (377 m 2 g −1 ) in comparison with the parent MIL‐101 (1786 m 2 g −1 ), but the existence of the abundance of mesoporous provides opportunity occur adsorption greatly.…”

Section: Adsorption Of One Metal Ionmentioning

confidence: 99%

Section: Adsorption Of One Metal Ionmentioning

confidence: 99%

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Recent Progress in the Removal of Heavy Metal Ions from Water Using Metal‐Organic Frameworks

2020

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The efficient adsorption of heavy metal ions from wastewater has become a serious challenge from both environmental and biological viewpoints. Recently, porous metal‐organic frameworks (MOFs), with metallic clusters and organic linkers, have been developed as promising structures in the capture of different toxic and hazardous substances, including heavy metal ions, because of their unique features. Here there is a collection for recent progress in the field of water remediation from the variable‐valent metals in polluted water and the corresponding MOFs which are able to remove these pollutant agents from water. Meanwhile, effective factors in the absorption of metal ions are discussed. MOFs are considered to be a promising candidate for metal ions removal from wastewater.

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Section: Adsorption Of One Metal Ionmentioning

confidence: 99%

Section: Adsorption Of One Metal Ionmentioning

confidence: 99%

Section: Adsorption Of One Metal Ionmentioning

confidence: 99%

Section: Adsorption Of One Metal Ionmentioning

confidence: 99%

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Recent Progress in the Removal of Heavy Metal Ions from Water Using Metal‐Organic Frameworks

2020

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“…Arsenic pollution in the environment occurs mostly due to anthropogenic processes such as agriculture, mining and mineral processing operations [3][4][5]. It is universally believed that the extractive process of non-ferrous metal is one of the most important sources of arsenic and produces a large amount of strongly acidic wastewater with high arsenic concentration [6][7][8]. In the smelting of copper or lead-zinc ore, large amounts of acidic wastewater are discharged when the gaseous emissions containing SO 2 , As, Cu, Pb, Zn and other impurities are washed with diluted acid.…”

Section: Introductionmentioning

confidence: 99%

Release Behaviors of Arsenic and Heavy Metals from Arsenic Sulfide Sludge during Simulated Storage

Yao

Min

et al. 2019

Minerals

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Non-ferrous metal smelting enterprises produce hundreds of thousands of tons of arsenic sulfide sludge (ASS) each year in China. Most of the ASS are stored at the companies without enough preventive measures. During the storage and natural drying process, arsenic sulfide is easily oxidized, thereby causing secondary pollution and increasing environmental risks. In this paper, experiments of simulated storage were used to study the release characteristics of heavy metals. During the simulated storage, the release concentrations of As, Pb, and Cd increased rapidly at first and then slowly. Although the total amount of arsenic released was the largest, the release ratio was in the order of Cd > Pb > As. The effects of different atmospheres and conditions on the release of arsenic and heavy metals were explored. The more the H2SO4 in the sludge, the higher the release concentration, and the addition of an appropriate amount of Ca(OH)2 is beneficial for reducing the release of heavy metals. Finally, SEM, XRD and TG-DTG techniques were carried out to confirm that the release of heavy metals was caused by the oxidation process resulting from the residual H2SO4 in the ASS and the air.

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Synthesis, modification, and adsorption properties of Yb‐MOF: Kinetic and thermodynamic studies

Yin

Deng

et al. 2022

Applied Organom Chemis

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In this paper, a novel Yb metal–organic frameworks {[Yb(L)(DMA)(H2O)]·(3H2O)}n (Yb‐MOF, H3L is 4‐(N,N′‐bis(4‐carboxylbenzyl)amino)benzenesulfonic acid) was synthesized by solvothermal reaction. Modified Yb‐MOF was prepared by the potassium permanganate method for removing the Cu(II) and As(V) from simulated wastewater. The optimal pH value of modified Yb‐MOF for Cu(II) and As(V) adsorption was 5, and the optimal dosage of adsorbent was 0.04 mg/10 ml by static adsorption test. Four isothermal adsorption models (Freundlich, Langmuir, Temkin, and Dubinin–Radushkevich models) were fitted and analyzed. The adsorption processes of Cu(II) and As(V) were consistent with Freundlich, Langmuir, and Temkin models. The highest Cu(II) and As(V) adsorption capacity are 59.418 and 81.169 mg/g, respectively. The adsorption kinetic model and thermodynamic analysis of the modified Yb‐MOF for Cu(II) and As(V) were studied. The results showed revealed that the pseudo‐second‐order kinetic had a higher correlation association with the Cu(II) and As(V) adsorption process, indicating that chemisorption was dominant in both processes. At 298 and 308 K, the Cu(II) and As(V) adsorption by modified Yb‐MOF is spontaneous.

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Exceptional adsorption of arsenic by zirconium metal-organic frameworks: Engineering exploration and mechanism insight

Cited by 242 publications

References 66 publications

Recent Progress in the Removal of Heavy Metal Ions from Water Using Metal‐Organic Frameworks

Recent Progress in the Removal of Heavy Metal Ions from Water Using Metal‐Organic Frameworks

Release Behaviors of Arsenic and Heavy Metals from Arsenic Sulfide Sludge during Simulated Storage

Synthesis, modification, and adsorption properties of Yb‐MOF: Kinetic and thermodynamic studies

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