Sulfate-functionalized Fe-based MOF for removal of Pb(Ⅱ) and NO3- in industrial wastewater

Wang, Rui-Dong; Zhang, Wen-Qian; Lv, Hong-Bo; Chen, Yan-Ting; Wang, Lei; Zhou, Si-Han; Du, Lin; Zhao, Qi-Hua

doi:10.1016/j.jece.2024.112167

Journal of Environmental Chemical Engineering

2024

DOI: 10.1016/j.jece.2024.112167

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Sulfate-functionalized Fe-based MOF for removal of Pb(Ⅱ) and NO3- in industrial wastewater

Rui-Dong Wang,

Wen-Qian Zhang,

Hong-Bo Lv

et al.

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Recent Advances of Metal–Organic Framework for Heavy Metal Ions Adsorption

Zhang,

Zhai,

Feng

et al. 2024

Langmuir

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Heavy metal ion wastewater is a pressing and inescapable issue that is closely related to human health and ecological security due to its toxicity, carcinogenicity, and the unmanageable property of this type of wastewater. Metal–Organic Frameworks (MOFs) are a class of crystalline nanoporous materials with flexible designability and controllability, showing great potential in the field of adsorption and purification of heavy metals in wastewater. In this Perspective, we first discuss the harm of different heavy metal ions and briefly expound virtues of MOFs for pollutant adsorption. Then, we mainly summarize the recent advances in the construction of different metal-based MOFs (Zr-based, Zn-based, Co-based, Al-based, etc.) and their research progress in heavy metal ions adsorption. Furthermore, various types of MOF additives can often be effectively applied for heavy metal ion adsorption by functional modification or with other materials composition. Additionally, several commonly used adsorption kinetics and isotherm models are also detailed to help an in-depth understanding of the adsorption mechanism. Finally, the challenges and opportunities of MOFs for heavy metal ion adsorption are additionally discussed, and this review may provide new insight for other potential water purification applications.

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Recent Advances of Metal–Organic Framework for Heavy Metal Ions Adsorption

Zhang,

Zhai,

Feng

et al. 2024

Langmuir

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Nitrogen-Doped Weathered Coal for the Efficient Adsorption of Lead: Adsorption Performance and Mechanisms

Chen,

Jin,

Zhang

et al. 2024

Molecules

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The development of widely sourced and efficient adsorbents is crucial for the adsorption of lead from wastewater. A novel adsorbent, N-doped weathered coal (NWC), was prepared in this study using weathered coal as the precursor and triethylenetetramine (TETA) as the N-source. The adsorption performance and behavior of Pb(II) on NWC were investigated using batch adsorption experiments. The results demonstrated that NWC has an efficient adsorption performance towards Pb(II), with a maximum monolayer adsorption capacity of 216.32 mg g−1 (25 °C). The adsorption process was spontaneous and endothermic, and the importance of chemisorption was observed. The adsorption mechanisms of NWC were also analyzed based on its physicochemical structure before and after the Pb(II) adsorption and desorption experiments. The N and O functional groups, acting as electron donors, promoted coordination with Pb(II), making complexation the dominant mechanism. Its contribution to the adsorption mechanism could reach 44.81%. NWC is a promising material for both wastewater treatment and the resource utilization of weathered coal.

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Sulfate-functionalized Fe-based MOF for removal of Pb(Ⅱ) and NO3- in industrial wastewater

Cited by 2 publications

References 42 publications

Recent Advances of Metal–Organic Framework for Heavy Metal Ions Adsorption

Recent Advances of Metal–Organic Framework for Heavy Metal Ions Adsorption

Nitrogen-Doped Weathered Coal for the Efficient Adsorption of Lead: Adsorption Performance and Mechanisms

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