Highly sensitive colorimetric detection and effective adsorption of phosphate based on MOF-808(Zr/Ce)

Zhai, Yuzhu; Li, Yijing; Hou, Qin; Zhang, Yuanhong; Zhou, En‐Long; Li, Houshen; Ai, Shiyun

doi:10.1039/d2nj00640e

Cited by 16 publications

(9 citation statements)

References 54 publications

(66 reference statements)

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“…Of various P-recovery techniques invented so far, adsorption occupies a significant role because of its high efficiency, cost-effectiveness, operational simplicity, and environmental friendliness. − Adsorbents ranging from natural minerals to synthetic materials, from industrial wastes to agricultural straws, and from organic to inorganic materials, etc. have been extensively explored for capturing P from waste streams. ,− Among the diverse range of adsorbents, metal–organic frameworks (MOFs) offer a very attractive and promising platform for the highly efficient capturing of P from wastewater. − Water-stable MOFs such as UiO-66, NU-1000, and MIL-101 have been widely used as adsorbents for the removal and recovery of phosphorus. Lin et al reported that grafting of an amine group to UiO-66 can significantly improve its adsorption capacity and preference toward P. Xie and coworkers also observed such trends in P adsorption over MIL-101(Fe) and aminated MIL-101(Fe) .…”

Section: Introductionmentioning

confidence: 99%

“…14 This improved adsorption affinity by amine groups was further verified in a study assessing the effect of various functional groups on the adsorption performance of UiO-66. 21 Other approaches such as doping by specific P-preferring elements, 16,19,20,22 microstructural tailoring (e.g., creating defectrich MOFs), 18,23−25 and integrating with various compounds, 17,26−29 have been successfully implemented. However, these nano-and micro-sized MOF adsorbents often suffer from being difficult to fully recover after dispersing in water and are susceptible to lose during the solid−liquid separation process despite their much higher adsorption affinity compared to conventional monolith adsorbents.…”

Section: Introductionmentioning

confidence: 99%

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Anchoring NH₂-MIL-101(Fe/Ce) within Melamine Sponge Boosts Rapid Adsorption and Recovery of Phosphate from Water

Yan

Liu

et al. 2023

ACS EST Eng.

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Efficient removal and recovery of phosphorus (P) from wastewater is critical for addressing both phosphate rock depletion and eutrophication-related deterioration of surface water quality. Herein, we present a promising platform approach integrating cerium-doped NH 2 -MIL-101(Fe) with melamine sponge (MS) scaffolds for rapid and high-efficiency recovery of P from wastewater. The as-prepared MIL-101@sponge composites (denoted as MIL-101@CS, MIL-101@PVDF, and MIL-101@ SDBS, respectively) are featured by flexibility and stability according to many characterization techniques. Batch adsorption of P over these composite adsorbents indicates that these MIL-101@sponge composites exhibit a maximum adsorption capacity (e.g., 253.66 mg g −1 for MIL-101@CS) at the optimum pH of 6.0 and that adsorption equilibrium can be attained within 150 min and well described by the pseudo-second-order kinetic model. In addition, these composites show a high selectivity for P over carbonate and other common monovalent anions under environmentally relevant conditions. The results of desorption and recycling tests indicate that MIL-101@CS retains good adsorption and desorption efficiency even in a much short operating time (i.e., 5 min), which allows such a composite to be applied in enriching and recovering P efficiently from wastewater via a rapid adsorption/desorption operation. Moreover, the high feasibility of MIL-101@CS in actual scenarios was validated by efficiently enriching the P from a sludge dewatering liquid. Furthermore, the main mechanisms for P adsorption are elucidated from various microstructural characterizations. Overall, this work presents a strategy of integrating MIL-101 with sponge scaffolds for rapidly and efficiently recovering P from wastewater, which may be potentially extended to the recovery of other value-added elements of interest from waste streams.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anchoring NH₂-MIL-101(Fe/Ce) within Melamine Sponge Boosts Rapid Adsorption and Recovery of Phosphate from Water

Yan

Liu

et al. 2023

ACS EST Eng.

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“…Various techniques like electrochemical analysis, colorimetry, chromatography, high-performance liquid chromatography (HPLC), enzymatic biosensors are being used for the detection of phosphate ions. [21][22][23][24][25] However, the mentioned techniques suffer several drawbacks like complex sample handling, high-cost equipment, toxic chemicals and are laborious. Recently, luminescent probes have attracted attention due to their simplicity and high selectivity.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, design and development of a sensor that can accurately and effectively monitor content of phosphates is of great practical significance. Various techniques like electrochemical analysis, colorimetry, chromatography, high‐performance liquid chromatography (HPLC), enzymatic biosensors are being used for the detection of phosphate ions [21–25] . However, the mentioned techniques suffer several drawbacks like complex sample handling, high‐cost equipment, toxic chemicals and are laborious.…”

Section: Introductionmentioning

confidence: 99%

Click‐Generated Triazole‐Based Silanes: A Potent Chemosensor for Dihydrogen Phosphate

et al. 2023

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Over the years, ground and surface water has been reported to be contaminated with phosphates. These phosphates are known to cause various diseases and if present in excess can lead to eutrophication. The known silane chemistry has not been thoroughly investigated for the sensing of anions. In the current study four new triazole based silanes have been prepared by the renowned Click Chemistry for the selective and sensitive detection of dihydrogen phosphate. The synthesized compounds were well characterized by various spectroscopic techniques and their absorptive and emissive responses were investigated for the recognition of dihydrogen phosphate ions. The binding ratio between triazole based silane chemosensor and dihydrogen phosphate has been discovered from Job's plot and was also confirmed by non‐linear fitting method. The value of association constant was found to be 571.18 M−1. The limit of detection (LOD) and limit of quantitation (LOQ) were calculated by fluorescence spectroscopy. The results obtained clearly illustrated that triazole based silane could be used as a potent chemosensor for selective and sensitive recognition of dihydrogen phosphate. Further, the possible binding site of chemosensor for dihydrogen phosphate has been identified from 1H NMR studies and DFT calculations. At last real sample analysis was performed to check the practical applicability of chemosensor.

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“…A new form of porous hybrid materials called metal–organic frameworks (MOFs) have attracted significant research interest because of their high surface area, tunable pore structure and composition, high thermal stability, etc. − Over the past decade, numerous MOFs have been prepared for various applications such as adsorption and storage of gases, environmental remediation, , sensing, delivery of drugs, , catalysis, , and separation. , Moreover, MOFs are materials with good porosity and reusability, making them amenable for the adsorptive removal of several contaminants from water environment. − …”

Section: Introductionmentioning

confidence: 99%

Preparation and Adsorption Behavior of Ce(III)-MOF for Phosphate and Fluoride Ion Removal from Aqueous Solutions

Belaye,

Taddesse,

Teju

et al. 2023

ACS Omega

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The discharge of inorganic pollutants like phosphate and fluoride is a cause of mounting concern to the world due to the substantial environmental and human health risk. Adsorption is one of the most common and affordable technologies widely utilized for removing inorganic pollutants such as phosphate and fluoride anions. Investigating efficient sorbents for the adsorption of these pollutants is extremely important and challenging. This work aimed at studying the adsorption efficiency of the Ce(III)-BDC metal–organic framework (MOF) for the removal of these anions from an aqueous solution using a batch mode. Powder X-ray diffraction (XRD), Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), Brunauer–Emmett–Teller (BET), and scanning electron microscopy-energy dispersive X-ray analysis (SEM-EDX) techniques evidenced the successful synthesis of Ce(III)-BDC MOF in water as a solvent without any energy input within a short reaction time. The outstanding removal efficiency of phosphate and fluoride was exhibited at an optimized pH (3, 4), adsorbent dose (0.20, 0.35 g), contact time (3, 6 h), agitation speed (120, 100 rpm), and concentration (10, 15 ppm) for each ion, respectively. The experiment on the effect of coexisting ions demonstrated that SO4 2– and PO4 3– ions are the primary interfering ions in phosphate and fluoride adsorption, respectively, while the HCO3 – and Cl– ions were found to have interfered less. Furthermore, the isotherm experiment showed that the equilibrium data fitted well with the Langmuir isotherm model and the kinetic data correlated well with the pseudo-second-order model for both ions. The results of thermodynamic parameters such as ΔH°, ΔG°, and ΔS° evidenced an endothermic and spontaneous process. The regeneration of the adsorbent made using water and NaOH solution showed the easy regeneration of the sorbent Ce(III)-BDC MOF, which can be reused four times, revealing its potential application for the removal of these anions from aqueous environment.

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Highly sensitive colorimetric detection and effective adsorption of phosphate based on MOF-808(Zr/Ce)

Abstract: Phosphate ion (Pi) is usually considered as an important index of eutrophication in water, and can cause great harm to water ecological environment. In this work, MOF-808(Zr/Ce) was synthesized simply...

Cited by 16 publications

References 54 publications

Anchoring NH₂-MIL-101(Fe/Ce) within Melamine Sponge Boosts Rapid Adsorption and Recovery of Phosphate from Water

Anchoring NH₂-MIL-101(Fe/Ce) within Melamine Sponge Boosts Rapid Adsorption and Recovery of Phosphate from Water

Click‐Generated Triazole‐Based Silanes: A Potent Chemosensor for Dihydrogen Phosphate

Preparation and Adsorption Behavior of Ce(III)-MOF for Phosphate and Fluoride Ion Removal from Aqueous Solutions

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Highly sensitive colorimetric detection and effective adsorption of phosphate based on MOF-808(Zr/Ce)

Abstract: Phosphate ion (Pi) is usually considered as an important index of eutrophication in water, and can cause great harm to water ecological environment. In this work, MOF-808(Zr/Ce) was synthesized simply...

Cited by 16 publications

References 54 publications

Anchoring NH2-MIL-101(Fe/Ce) within Melamine Sponge Boosts Rapid Adsorption and Recovery of Phosphate from Water

Anchoring NH2-MIL-101(Fe/Ce) within Melamine Sponge Boosts Rapid Adsorption and Recovery of Phosphate from Water

Click‐Generated Triazole‐Based Silanes: A Potent Chemosensor for Dihydrogen Phosphate

Preparation and Adsorption Behavior of Ce(III)-MOF for Phosphate and Fluoride Ion Removal from Aqueous Solutions

Contact Info

Product

Resources

About

Anchoring NH₂-MIL-101(Fe/Ce) within Melamine Sponge Boosts Rapid Adsorption and Recovery of Phosphate from Water

Anchoring NH₂-MIL-101(Fe/Ce) within Melamine Sponge Boosts Rapid Adsorption and Recovery of Phosphate from Water