Green and facile synthesis of cobalt-based metal–organic frameworks for the efficient removal of Congo red from aqueous solution

Guo, Xiuling; Kong, Lingjun; Ruan, Yang; Diao, Zeng-Hui; Shih, Kaimin; Su, Minhua; Hou, Li’an; Chen, Diyun

doi:10.1016/j.jcis.2020.05.126

Cited by 90 publications

(43 citation statements)

References 50 publications

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“…[14][15][16][17] ZIF materials are obtained via a solvothermal method, where ZIFs are prepared from organic solvents. 18,19 However, organic solvents are oen toxic, expensive, ammable, not environment-friendly, and not cost-effective. [19][20][21] Accordingly, the production of ZIFs through a green method and low-cost is accordingly desired.…”

Section: Introductionmentioning

confidence: 99%

Cobalt metal–organic framework-based ZIF-67 for the trace determination of herbicide molinate by ion mobility spectrometry: investigation of different morphologies

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Cobalt metal–organic framework-based ZIF-67 for the trace determination of herbicide molinate by ion mobility spectrometry: investigation of different morphologies

et al. 2021

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“…Ceaseless industrialization and population growth across the world have led to a severe deterioration in water quality [1]. e use of chemicals and industrial compounds has continued to increase, posing a significant pollution risk to existing watercourses.…”

Section: Introductionmentioning

confidence: 99%

“…Water pollution is a global environmental challenge that destroys the food sources and contaminates drinking water, leading to immediate and long-term effects on human health [2]. Many water pollutants are reported to act as toxic chemicals, including dyes, antibiotics, heavy metals, fertilizers, and pesticides [1,2]. Heavy metal pollution is a major water pollution hazard and presents a serious risk to human health and aquatic environments [3,4].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Macadamia Nutshell Residue for the Synthesis of Magnetic Activated Carbon toward Zinc (II) Ion Removal

Dao

Tran

et al. 2021

Advances in Materials Science and Engineering

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In this study, macadamia nutshell residue, a prevalent leftover and green agricultural waste in Vietnam, was utilized to prepare a magnetic activated carbon adsorbent. The obtained material was characterized by its surface functionalities, elemental composition, crystalline structure, and magnetic properties. The characterization results revealed that the composite comprised Fe3O4 nanoparticles attached to the carbon matrix. The saturation magnetization (Ms) of the composite was found to be 38.2 emu g−1, indicating a convenient separation of the solid adsorbent from aqueous media using an external magnetic field. The feasibility of removing zinc (II) ion from an aqueous solution of the activated carbon/Fe3O4 (AC/Fe3O4) composite was examined. The adsorption kinetics were best explained by the Elovich model and the pseudo-second-order model. The adsorption capacity at equilibrium and the initial rate of Zn2+ adsorption determined by the pseudo-second-order model were 22.73 mg g−1 and 4.18 mg g−1 min−1, respectively. The implications of this study are that a low-cost, green, and magnetically separable material prepared by a large-scale available solid waste can be a promising adsorbent for the elimination of heavy metals.

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“…Metal-organic frameworks (MOFs) are promising materials that can be used to overcome this trade-off. MOFs are porous crystalline materials that are formed by the self-assembly of organic and inorganic building units linked through coordination bonds (Guo et al 2020). Due to their highly-tunable structure and chemical functionalization, they have been widely investigated for catalysis (Ren et al 2019;Zhang et al 2020), adsorption (Guo et al 2020;Wu et al 2020), and separation applications (Liu et al 2015;Fu et al 2020;Wei et al 2020).…”

mentioning

confidence: 99%

“…MOFs are porous crystalline materials that are formed by the self-assembly of organic and inorganic building units linked through coordination bonds (Guo et al 2020). Due to their highly-tunable structure and chemical functionalization, they have been widely investigated for catalysis (Ren et al 2019;Zhang et al 2020), adsorption (Guo et al 2020;Wu et al 2020), and separation applications (Liu et al 2015;Fu et al 2020;Wei et al 2020). Zeolitic imidazolate frameworks (ZIFs) are a subclass of MOFs that are constructed by joining a central bivalent metal ion (e.g., Zn 2þ or Cu 2þ ) with four imidazole ligands.…”

mentioning

confidence: 99%

Application of ZIF-67 as a crosslinker to prepare sulfonated polysulfone mixed-matrix membranes for enhanced water permeability and separation properties

Yin¹,

Tang²,

Liu³

et al. 2021

Water Science and Technology

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High-performance sulfonated polysulfone (SPSf) mixed-matrix membranes (MMMs) were fabricated via a nonsolvent-induced phase separation (NIPS) method using ZIF-67 (Zeolitic imidazolate frameworks-67) as a crosslinker. Acid-base crosslinking occurred between the sulfonic acid groups of SPSf and the tertiary amine groups of the embedded ZIF-67, which improved the dispersion of ZIF-67 and simultaneously improved the membrane structure and permselectivity. The dispersion of ZIF-67 in the MMMs and the acid-base crosslinking reaction were verified by energy-dispersive X-ray spectroscopy (EDX), X-ray diffractometry (XRD), Fourier-transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The pore structure analysis of MMMs indicated that filling ZIF-67 into SPSf enhanced the average surface pore sizes, surface porosities and more micropore in cross-sections. The crossflow filtrations showed the MMMs have higher pure water fluxes (57 to 111 L m−2 h−1) than the SPSf membrane (55 L m−2 h−1) but also higher BSA(bovine serum albumin) rejection rate of 93.9–95.8%, a model protein foulant. The MMMs showed a higher water contact angle than the SPSf membrane due to the addition of hydrophobic ZIF-67 and acid-base crosslinking, and also maintained high thermal stability evidenced by the TGA(Thermogravimetric analysis) results. At the optimal ZIF-67 concentration of 0.3 wt%, the water flux of the SPSf-Z67-0.3 membrane was 82 L m−2 h−1 with a high BSA rejection rate of 95.3% at 0.1 MPa and better antifouling performance (FRR = 70%).

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Green and facile synthesis of cobalt-based metal–organic frameworks for the efficient removal of Congo red from aqueous solution

Cited by 90 publications

References 50 publications

Cobalt metal–organic framework-based ZIF-67 for the trace determination of herbicide molinate by ion mobility spectrometry: investigation of different morphologies

Cobalt metal–organic framework-based ZIF-67 for the trace determination of herbicide molinate by ion mobility spectrometry: investigation of different morphologies

Utilization of Macadamia Nutshell Residue for the Synthesis of Magnetic Activated Carbon toward Zinc (II) Ion Removal

Application of ZIF-67 as a crosslinker to prepare sulfonated polysulfone mixed-matrix membranes for enhanced water permeability and separation properties

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