scholarly journals Flexible nanocellulose-based aerogel with loading of modified UiO-66 as efficient adsorbent for removal of heavy metal ions

2019 ◽  
Author(s):  
Jiajia Li ◽  
Sicong Tan ◽  
Nannan Rong ◽  
Kunjie Zhang ◽  
Mengting Xu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Freeze Drying ◽  
Metal Organic Framework ◽  
Cellulose Nanofibers ◽  
Drying Method ◽  
Lamellar Morphology ◽  
Metal Organic ◽  
Efficient Adsorbent

Currently, preparation of outstanding adsorbents has attracted public concern in environmentally friendly and sustainable pollutant redress. Herein, we report a directional freeze-drying method to prepare a flexible and reusable adsorbent through introducing modified metal-organic framework material (UiO-66-EDTA) into cellulose nanofibers (CNF) aerogel. By controlling the concentration of crosslinkable carboxymethy cellulose (CMC) solution, we produced aerogels with different pore structures, fibrillar, columnar and lamellar morphology. The obtained UiO-66-EDTA/CNF/CMC aerogel (U-EDTACCA) showed excellent adsorption performance for total 9 types of heavy metal ions with the removal efficiency reaching 91%. Moreover, the aerogels could retain 88% of its original shape after 5 times cycling. The aerogel may be appropriate material for adsorbing heavy metal ions.

scholarly journals Anisotropic Nanocellulose Aerogel Loaded with Modified UiO-66 as Efficient Adsorbent for Heavy Metal Ions Removal

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1114
Author(s):  
Jiajia Li ◽  
Sicong Tan ◽  
Zhaoyang Xu
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Drying Method ◽  
Metal Organic ◽  
Heavy Metal Ions Removal ◽  
Efficient Adsorbent

Currently, the preparation of outstanding adsorbents has attracted public concern in environmentally friendly and sustainable pollutant redress. Herein, we report a directional freeze-drying method to prepare a strong and reusable adsorbent by introducing metal-organic framework which modified by ethylene diamine tetraacetic acid (named UiO-66-EDTA) into cellulose nanofiber (CNF) aerogel. Compared to traditional aerogels, the fabricated adsorbent showed a good flexibility and reusability by forming a homogeneous three-dimensional structure. By controlling the concentration of a crosslinkable carboxymethyl cellulose (CMC) solution, we produced aerogels with different pore structures and fibrillar, columnar, and lamellar morphologies. The obtained UiO-66-EDTA/CNF/CMC aerogel (U-EDTACCA) showed an excellent adsorption performance for a total of nine types of heavy metal ions, as the removal efficiency could reach 91%. Moreover, the aerogels could retain 88% of their original shape after five cycles. The aerogel may be an appropriate material for the adsorption of heavy metal ions.

Colorimetric detection of heavy metal ions in water via metal-organic framework

2019 ◽  
Vol 486 ◽  
pp. 69-73 ◽  
Author(s):  
Jiwon Kim ◽  
Jung Suk Oh ◽  
Kyoung Chul Park ◽  
Gajendra Gupta ◽  
Chang Yeon Lee
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Metal Organic Framework ◽  
Colorimetric Detection ◽  
Metal Organic ◽  
Organic Framework

Determination of heavy metal ions in vegetable samples using a magnetic metal–organic framework nanocomposite sorbent

2015 ◽  
pp. 1-12 ◽  
Author(s):  
Akbar Hassanpour ◽  
Rahim Hosseinzadeh-Khanmiri ◽  
Mirzaagha Babazadeh ◽  
Jafar Abolhasani ◽  
Ebrahim Ghorbani-Kalhor
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Metal Organic Framework ◽  
Vegetable Samples ◽  
Magnetic Metal ◽  
Metal Organic ◽  
Organic Framework

Synthesis and Application of a Novel Functionalized Magnetic Metal–Organic Framework Sorbent for Determination of Heavy Metal Ions in Fish Samples

2015 ◽  
Vol 88 (6) ◽  
pp. 871-879 ◽  
Author(s):  
Mirzaagha Babazadeh ◽  
Rahim Hosseinzadeh Khanmiri ◽  
Jafar Abolhasani ◽  
Ebrahim Ghorbani-Kalhor ◽  
Akbar Hassanpour
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Metal Organic Framework ◽  
Fish Samples ◽  
Magnetic Metal ◽  
Metal Organic ◽  
Organic Framework

Biocatalytic metal–organic framework nanomotors for active water decontamination

2020 ◽  
Vol 56 (94) ◽  
pp. 14837-14840
Author(s):  
Ziyi Guo ◽  
Jian Liu ◽  
Yong Li ◽  
James A. McDonald ◽  
Muhammad Yazid Bin Zulkifli ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Metal Organic Framework ◽  
Water Decontamination ◽  
Aqueous Environments ◽  
Metal Organic ◽  
Organic Framework

Biocatalytic metal–organic framework nanomotors for active removal of heavy metal ions and per- and poly-fluoroalkyl substances in aqueous environments.

scholarly journals Fe-MOF nanoparticles as efficient adsorbent for removal of heavy metal ions by facile hydrothermally synthesis

2021 ◽  
Author(s):  
Shady. M. El Dafrawy ◽  
Fares T. Al-Shorifi ◽  
Awad I. Ahmed
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Solvothermal Synthesis ◽  
Heavy Metal Ions ◽  
Metal Organic Framework ◽  
Adsorption Capacities ◽  
Metal Organic ◽  
Ft Ir ◽  
Efficient Adsorbent ◽  
Nano Size

Abstract Fe-MOFs catalyst was prepared by simple solvothermal synthesis. The Fe-MOF was characterized by XRD, TEM, SEM and FT-IR which confirmed metal organic framework nanoparticles with Nano size reached nearly 29.4-129.9 nm. The adsorption capacities / percentages of Fe-MOF adsorbent for heavy metals as toxic pollutants from aqueous solutions were high, which indicate that Fe-MOFs nanoparticles can be used as a good adsorbent.

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