Bottom-up synthesis of 2D Co-based metal–organic framework nanosheets by an ammonia-assisted strategy for tuning the crystal morphology

CrystEngComm ◽  
2019 ◽  
Vol 21 (20) ◽  
pp. 3199-3208 ◽  
Author(s):  
Pei Nian ◽  
Haiou Liu ◽  
Xiongfu Zhang
Keyword(s):  
Crystal Morphology ◽  
Metal Organic Framework ◽  
Bottom Up ◽  
Metal Organic ◽  
Organic Framework

Two 2D Co2(bim)4 and Co(bim)(OAc) nanosheets were directly synthesized by an ammonia-modulated approach.

scholarly journals Buffered Coordination Modulation as a Means of Controlling Crystal Morphology and Molecular Diffusion in an Anisotropic Metal–Organic Framework

2021 ◽  
Vol 143 (13) ◽  
pp. 5044-5052
Author(s):  
Kristen A. Colwell ◽  
Megan N. Jackson ◽  
Rodolfo M. Torres-Gavosto ◽  
Sudi Jawahery ◽  
Bess Vlaisavljevich ◽  
...  
Keyword(s):  
Crystal Morphology ◽  
Molecular Diffusion ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Anisotropic Metal ◽  
Organic Framework

scholarly journals Polymer-Assisted Modification of Metal-Organic Framework MIL-96 (Al): Influence on Particle Size, Crystal Morphology and Perfluorooctanoic Acid (PFOA) Removal

2020 ◽  
Author(s):  
Luqman Hakim Mohd Azmi ◽  
Daryl R. Williams ◽  
Bradley P. Ladewig
Keyword(s):  
Particle Size ◽  
Crystal Morphology ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Synthesis Method ◽  
Perfluorooctanoic Acid ◽  
Water Soluble ◽  
Water Soluble Polymer ◽  
Metal Organic ◽  
Organic Framework

<div><b>Abstract</b></div><div>A new synthesis method was developed to prepare an aluminum-based metal organic framework (MIL-96) with a larger particle size and different crystal habits. A low cost and water-soluble polymer, hydrolyzed polyacrylamide (HPAM), was added in varying quantities into the synthesis reaction to achieve >200% particle size enlargement with controlled crystal morphology. The modified adsorbent, MIL-96-RHPAM2, was systematically characterized by SEM, XRD, FTIR, BET and TGA-MS. Using activated carbon (AC) as a reference adsorbent, the effectiveness of MIL-96-RHPAM2 for perfluorooctanoic acid (PFOA) removal from water was examined. The study confirms stable morphology of hydrated MIL-96-RHPAM2 particles as well as a superior PFOA adsorption capacity (340 mg/g) despite its lower surface area, relative to standard MIL-96. MIL-96-RHPAM2 suffers from slow adsorption kinetics as the modification significantly blocks pore access. The strong adsorption of PFOA by MIL-96-RHPAM2 was associated with the formation of electrostatic bonds between the anionic carboxylate of PFOA and the amine functionality present in the HPAM backbone. Thus, the strongly held PFOA molecules in the pores of MIL-96-RHPAM2 were not easily desorbed even after eluted with a high ionic strength solvent (500 mM NaCl). Nevertheless, this simple HPAM addition strategy can still chart promising pathways to impart judicious control over adsorbent particle size and crystal shapes while the introduction of amine functionality onto the surface chemistry is simultaneously useful for enhanced PFOA removal from contaminated aqueous systems.<br></div>

scholarly journals Polymer-Assisted Modification of Metal-Organic Framework MIL-96 (Al): Influence on Particle Size, Crystal Morphology and Perfluorooctanoic Acid (PFOA) Removal

2020 ◽  
Author(s):  
Luqman Hakim Mohd Azmi ◽  
Daryl R. Williams ◽  
Bradley P. Ladewig
Keyword(s):  
Particle Size ◽  
Crystal Morphology ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Synthesis Method ◽  
Perfluorooctanoic Acid ◽  
Water Soluble ◽  
Water Soluble Polymer ◽  
Metal Organic ◽  
Organic Framework

<div><b>Abstract</b></div><div>A new synthesis method was developed to prepare an aluminum-based metal organic framework (MIL-96) with a larger particle size and different crystal habits. A low cost and water-soluble polymer, hydrolyzed polyacrylamide (HPAM), was added in varying quantities into the synthesis reaction to achieve >200% particle size enlargement with controlled crystal morphology. The modified adsorbent, MIL-96-RHPAM2, was systematically characterized by SEM, XRD, FTIR, BET and TGA-MS. Using activated carbon (AC) as a reference adsorbent, the effectiveness of MIL-96-RHPAM2 for perfluorooctanoic acid (PFOA) removal from water was examined. The study confirms stable morphology of hydrated MIL-96-RHPAM2 particles as well as a superior PFOA adsorption capacity (340 mg/g) despite its lower surface area, relative to standard MIL-96. MIL-96-RHPAM2 suffers from slow adsorption kinetics as the modification significantly blocks pore access. The strong adsorption of PFOA by MIL-96-RHPAM2 was associated with the formation of electrostatic bonds between the anionic carboxylate of PFOA and the amine functionality present in the HPAM backbone. Thus, the strongly held PFOA molecules in the pores of MIL-96-RHPAM2 were not easily desorbed even after eluted with a high ionic strength solvent (500 mM NaCl). Nevertheless, this simple HPAM addition strategy can still chart promising pathways to impart judicious control over adsorbent particle size and crystal shapes while the introduction of amine functionality onto the surface chemistry is simultaneously useful for enhanced PFOA removal from contaminated aqueous systems.<br></div>

Bottom-Up Assembly of a Highly Efficient Metal–Organic Framework for Cooperative Catalysis

2018 ◽  
Vol 57 (21) ◽  
pp. 13912-13919 ◽  
Author(s):  
Changda Li ◽  
Haitong Tang ◽  
Yu Fang ◽  
Zhifeng Xiao ◽  
Kunyu Wang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Bottom Up ◽  
Cooperative Catalysis ◽  
Highly Efficient ◽  
Metal Organic ◽  
Organic Framework

Bottom‐Up Fabrication of 1D Cu‐based Conductive Metal–Organic Framework Nanowires as a High‐Rate Anode towards Efficient Lithium Storage

ChemSusChem ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 5051-5058 ◽  
Author(s):  
Lingzhi Guo ◽  
Jinfeng Sun ◽  
Wenheng Zhang ◽  
Linrui Hou ◽  
Longwei Liang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
High Rate ◽  
Lithium Storage ◽  
Bottom Up ◽  
Metal Organic ◽  
Organic Framework

Large‐Scale, Bottom‐Up Synthesis of Binary Metal–Organic Framework Nanosheets for Efficient Water Oxidation

2019 ◽  
Vol 58 (21) ◽  
pp. 7051-7056 ◽  
Author(s):  
Fei‐Long Li ◽  
Pengtang Wang ◽  
Xiaoqing Huang ◽  
David James Young ◽  
Hui‐Fang Wang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Large Scale ◽  
Metal Organic Framework ◽  
Bottom Up ◽  
Binary Metal ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Bottom-Up Formation of Carbon-Based Magnetic Honeycomb Material from Metal–Organic Framework–Guest Polyhedra for the Capture of Rhodamine B

ACS Omega ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 5578-5585 ◽  
Author(s):  
Chunbao Du ◽  
Yuhang Shui ◽  
Yaowen Bai ◽  
Yuan Cheng ◽  
Qinzhi Wang ◽  
...  
Keyword(s):  
Rhodamine B ◽  
Metal Organic Framework ◽  
Bottom Up ◽  
Metal Organic ◽  
Honeycomb Material ◽  
Carbon Based ◽  
Organic Framework
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