Growth of a mesoporous Zr-MOF on functionalized graphene oxide as an efficient adsorbent for recovering uranium (VI) from wastewater

Bi, Changlong; Zhang, Chunhong; Ma, Fuqiu; Zhang, Xu; Yang, Ming; Nian, Jinru; Liu, Lijia; Dong, Hongbiao; Zhu, Lien; Wang, Qiang; Guo, Shixi; Lv, Qingtao

doi:10.1016/j.micromeso.2021.111223

Cited by 30 publications

(11 citation statements)

References 56 publications

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“… 89 Similarly, mesoporous PCN-222/GO-COOH adsorbent could effectively recover U(VI) and shows an excellent adsorption capacity (426 mg·g –1 ), which was superior to that of GO-COOH and PCN-222. 72 U(VI) is well-known to be a typical Lewis acid with strong coordination with hard bases such as amidoxime, amine, and oxygen-containing groups. For example, amidoxime-functionalized porous MOF material (MIL-101-AO) shows an adsorption capacity much better than that of MIL-101.…”

Section: Mof-based Materials For Uranium Adsorptionmentioning

confidence: 99%

Section: Mof-based Materials For Uranium Adsorptionmentioning

confidence: 99%

“…MOFs can be mainly classified into the following six categories: − (1) Zeolitic imidazolate frameworks (ZIF) are MOFs with the zeolite structure synthesized by Zn(II) or Co(II) and imidazole ligand. (2) UiO (University of Oslo) materials are a zirconium-containing regular octahedral [Zr 6 O 4 (OH) 4 ] cluster directly connected with 12 organic ligands of terephthalic acid, forming a three-dimensional microporous structure containing an octahedral central pore cage and eight tetrahedral angle cages.…”

Section: Mof-based Materials For Uranium Adsorptionmentioning

confidence: 99%

“…For example, through the introduction of bioinspired phytic acid (PA) into a highly stable MOF (PCN-222), the modified PCN-222-PA has a high density of accessible phosphate groups and exhibits significant U(VI) adsorption capacity (401.6 mg·g –1 ), much higher than the adsorption capacity of PCN-222 (87 mg·g –1 ) . Similarly, mesoporous PCN-222/GO-COOH adsorbent could effectively recover U(VI) and shows an excellent adsorption capacity (426 mg·g –1 ), which was superior to that of GO-COOH and PCN-222 . U(VI) is well-known to be a typical Lewis acid with strong coordination with hard bases such as amidoxime, amine, and oxygen-containing groups.…”

Section: Mof-based Materials For Uranium Adsorptionmentioning

confidence: 99%

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Metal–Organic Framework-Based Materials for Adsorption and Detection of Uranium(VI) from Aqueous Solution

Liu

Mao

2022

ACS Omega

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The steady supply of uranium resources and the reduction or elimination of the ecological and human health hazards of wastewater containing uranium make the recovery and detection of uranium in water greatly important. Thus, the development of effective adsorbents and sensors has received growing attention. Metal–organic frameworks (MOFs) possessing fascinating characteristics such as high surface area, high porosity, adjustable pore size, and luminescence have been widely used for either uranium adsorption or sensing. Now pertinent research has transited slowly into simultaneous uranium adsorption and detection. In this review, the progress on the research of MOF-based materials used for both adsorption and detection of uranium in water is first summarized. The adsorption mechanisms between uranium species in aqueous solution and MOF-based materials are elaborated by macroscopic batch experiments combined with microscopic spectral technology. Moreover, the application of MOF-based materials as uranium sensors is focused on their typical structures, sensing mechanisms, and the representative examples. Furthermore, the bifunctional MOF-based materials used for simultaneous detection and adsorption of U(VI) from aqueous solution are introduced. Finally, we also discuss the challenges and perspectives of MOF-based materials for uranium adsorption and detection to provide a useful inspiration and significant reference for further developing better adsorbents and sensors for uranium containment and detection.

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Section: Mof-based Materials For Uranium Adsorptionmentioning

confidence: 99%

Section: Mof-based Materials For Uranium Adsorptionmentioning

confidence: 99%

Section: Mof-based Materials For Uranium Adsorptionmentioning

confidence: 99%

Section: Mof-based Materials For Uranium Adsorptionmentioning

confidence: 99%

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Metal–Organic Framework-Based Materials for Adsorption and Detection of Uranium(VI) from Aqueous Solution

Liu

Mao

2022

ACS Omega

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“…In previous studies, the combination of MOF-525 and GO did enhance the adsorption performance of TC [ 22 ]. However, MOF-525 and GO tend to cluster, greatly reducing the adsorption performance [ 23 ]. Nevertheless, nanomaterials were often coated in the three-dimensional structure of natural polymers to reduce agglomeration [ 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Effective Removal of Tetracycline from Water Using Copper Alginate @ Graphene Oxide with In-Situ Grown MOF-525 Composite: Synthesis, Characterization and Adsorption Mechanisms

Chen

et al. 2022

Nanomaterials

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For nanomaterials, such as GO and MOF-525, aggregation is the main reason limiting their adsorption performance. In this research, Alg-Cu@GO@MOF-525 was successfully synthesized by in-situ growth of MOF-525 on Alg-Cu@GO. By dispersing graphene oxide (GO) with copper alginate (Alg-Cu) with three-dimensional structure, MOF-525 was in-situ grown to reduce aggregation. The measured specific surface area of Alg-Cu@GO@MOF-525 was as high as 807.30 m2·g−1, which is very favorable for adsorption. The synthesized material has affinity for a variety of pollutants, and its adsorption performance is significantly enhanced. In particular, tetracycline (TC) was selected as the target pollutant to study the adsorption behavior. The strong acid environment inhibited the adsorption, and the removal percentage reached 96.6% when pH was neutral. Temperature promoted the adsorption process, and 318 K adsorption performance was the best under experimental conditions. Meanwhile, 54.6% of TC could be removed in 38 min, and the maximum adsorption capacity reached 533 mg·g−1, far higher than that of conventional adsorption materials. Kinetics and isotherms analysis show that the adsorption process accords with Sips model and pseudo-second-order model. Thermodynamic study further shows that the chemisorption is spontaneous and exothermic. In addition, pore-filling, complexation, π-π stack, hydrogen bond and chemisorption are considered to be the causes of adsorption.

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A Review of Metal–Organic Framework‐Based Compounds for Environmental Applications

Qian

Zhang

Kang

et al. 2023

Energy & Environ Materials

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Metal-organic framework-based compounds have recently gained great attention because of their unique porous structure, ordered porosity, and high specific surface area. Benefiting from these superior properties, metalorganic framework-based compounds have been proven to be one of the most potential candidates for environmental governance and remediation. In this review, the different types of metal-organic framework-based compounds are first summarized. Further, the various environmental applications of metal-organic framework-based compounds including organic pollutant removal, toxic and hazardous gas capture, heavy metal ion detection, gas separation, water harvesting, air purification, and carbon dioxide reduction reactions are discussed in detail. In the end, the opportunities and challenges for the future development of metal-organic framework-based compounds for environmental applications are highlighted.

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Growth of a mesoporous Zr-MOF on functionalized graphene oxide as an efficient adsorbent for recovering uranium (VI) from wastewater

Cited by 30 publications

References 56 publications

Metal–Organic Framework-Based Materials for Adsorption and Detection of Uranium(VI) from Aqueous Solution

Metal–Organic Framework-Based Materials for Adsorption and Detection of Uranium(VI) from Aqueous Solution

Effective Removal of Tetracycline from Water Using Copper Alginate @ Graphene Oxide with In-Situ Grown MOF-525 Composite: Synthesis, Characterization and Adsorption Mechanisms

A Review of Metal–Organic Framework‐Based Compounds for Environmental Applications

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