Synthesis of amine-functionalized ZIF-8 with 3-amino-1,2,4-triazole by postsynthetic modification for efficient CO2-selective adsorbents and beyond

2018 ◽  
Vol 6 (39) ◽  
pp. 18912-18919 ◽  
Author(s):  
Kie Yong Cho ◽  
Heseong An ◽  
Xuan Huy Do ◽  
Keunsu Choi ◽  
Ho Gyu Yoon ◽  
...  

The facile tuning of the gate size and the chemical functionalization of zeolitic imidazolate framework-8 (ZIF-8) were achieved by the postsynthetic modification with 3-amino-1,2,4-triazole. The resulting amine functionalized ZIF-8 particles enabled CO2 selective adsorption and further chemical modifications.

2020 ◽  
Vol 3 (10) ◽  
pp. 9852-9861
Author(s):  
Yu Ri Lee ◽  
Xuan Huy Do ◽  
Kie Yong Cho ◽  
Keunhong Jeong ◽  
Kyung-Youl Baek

2016 ◽  
Vol 55 (21) ◽  
pp. 10839-10842 ◽  
Author(s):  
William J. Gee ◽  
Laura K. Cadman ◽  
Harina Amer Hamzah ◽  
Mary F. Mahon ◽  
Paul R. Raithby ◽  
...  

2014 ◽  
Vol 46 ◽  
pp. 9-12 ◽  
Author(s):  
Lin Huang ◽  
Ming Xue ◽  
Qingshan Song ◽  
Siru Chen ◽  
Ying Pan ◽  
...  

RSC Advances ◽  
2014 ◽  
Vol 4 (62) ◽  
pp. 33047-33054 ◽  
Author(s):  
Fang Yan ◽  
Zhong-Ying Liu ◽  
Jin-Long Chen ◽  
Xiao-Yan Sun ◽  
Xiao-Juan Li ◽  
...  

Exploration of zeolitic imidazolate framework-8 as an adsorbent for selective adsorption of theophylline over caffeine and diprophylline in aqueous solution.


2015 ◽  
Vol 39 (4) ◽  
pp. 2451-2458 ◽  
Author(s):  
Amrita Chakravarty ◽  
Koushik Bhowmik ◽  
Goutam De ◽  
Arnab Mukherjee

Amine functionalized graphite nanosheets are formed by facile chemical functionalization and their water soluble PEGylated derivative is prepared for drug loading and controlled release.


RSC Advances ◽  
2014 ◽  
Vol 4 (39) ◽  
pp. 20323-20333 ◽  
Author(s):  
Rupa Shantamal Madyal ◽  
Jyotsna Sudhir Arora

The current study provides molecular-level insights into the CO2–amine functionalized polystyrene complexes, enabling design of newer CO2 selective adsorbents.


Author(s):  
Zelan Wang ◽  
XiaoYan Chen ◽  
Zhe Meng ◽  
Mengxin Zhao ◽  
Haijuan Zhan ◽  
...  

Abstract Water-resistant magnetic graphene-anchored zeolite imidazolate (Fe3O4/ZIF-8-G) composite materials with the largest surface area are formed by directly growing a hydrophobic ZIF-8 skeleton onto a graphene support through self-assembly in methanol. Fe3O4/ZIF-8-G hybrid composite has water resistance and super strong adsorption capacity, and is used as an effective adsorbent for adsorption and removal of residual tetracycline in wastewater. The morphologies and structure, as well as water resistance of Fe3O4/ZIF-8-G, were characterized using FT-IR, XRD, SEM, TEM, TGA, N2 adsorption and pHPZC. The adsorption for tetracycline (TC), oxytetracycline (OTC) and chlortetracycline (CTC) followed pseudo-second-order kinetics and fitted the Freundlich adsorption model with the simultaneous adsorption capacity for TC (382.58 mg g−1), OTC (565.94 mg g−1) and CTC (608.06 mg g−1) at pH 5–6 for 10 h. These were much higher than previously reported results for the removal of tetracycline from aqueous solutions. The used Fe3O4/ZIF-8-G could be effectively reused and recycled at least five times without significant loss of adsorption capacity. The hydrophobic and π-π interaction between the aromatic rings of TCs and the aromatic imidazole rings of the ZIF-8-G framework were the main adsorption mechanism on the surface of Fe3O4/ZIF-8-G. Constructing a hydrophobic surface of ZIF-8/G framework resulted in a reduction of the hydrophilic sites of the surface. This can improve stability and selective adsorption of ZIF-8-G framework. In addition, the results show no significant difference in the adsorption kinetics and adsorption capacity of Fe3O4/ZIF-8-G for TC, OTC and CTC in pure water and wastewater.


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