Effective Removal of Naphthalenesulfonic Acid from Water Using Functionalized Metal–Organic Frameworks

2018 ◽  
Vol 63 (8) ◽  
pp. 3061-3067 ◽  
Author(s):  
Huifang Zhao ◽  
Xudong Zhao ◽  
Zhuqing Gao ◽  
Dahuan Liu
Keyword(s):  
Metal Organic Frameworks ◽  
Effective Removal ◽  
Metal Organic

scholarly journals Effective removal of chemical warfare agent simulants using water stable metal–organic frameworks: mechanistic study and structure–property correlation

RSC Advances ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. 6691-6696 ◽  
Author(s):  
P. Asha ◽  
Mekhola Sinha ◽  
Sukhendu Mandal
Keyword(s):  
Aqueous Medium ◽  
Metal Organic Frameworks ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Mechanistic Study ◽  
Structure Property ◽  
Adsorptive Removal ◽  
Property Correlation ◽  
Effective Removal ◽  
Metal Organic

Water stable zirconium based MOFs are used for the efficient adsorptive removal of chemical warfare agent simulants from aqueous medium.

Functionalized metal-organic frameworks for effective removal of rocephin in aqueous solutions

2018 ◽  
Vol 514 ◽  
pp. 234-239 ◽  
Author(s):  
Xudong Zhao ◽  
Yanan Wei ◽  
Huifang Zhao ◽  
Zhuqing Gao ◽  
Yuezhong Zhang ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Metal Organic Frameworks ◽  
Effective Removal ◽  
Metal Organic

scholarly journals Recent Progress in Heavy Metal Ion Decontamination Based on Metal–Organic Frameworks

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1481
Author(s):  
Yajie Chen ◽  
Xue Bai ◽  
Zhengfang Ye
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Metal Ion ◽  
High Surface ◽  
Metal Organic Frameworks ◽  
Environmental Safety ◽  
Surface Areas ◽  
Effective Removal ◽  
Pore Size Distributions ◽  
Metal Organic

Heavy metals are inorganic pollutants which pose a serious threat to human and environmental safety, and their effective removal is becoming an increasingly urgent issue. Metal–organic frameworks (MOFs) are a novel group of crystalline porous materials, which have proven to be promising adsorbents because of their extremely high surface areas, optimizable pore volumes and pore size distributions. This study is a systematic review of the recent research on the removal of several major heavy metal ions by MOFs. Based on the different structures of MOFs, varying adsorption capacity can be achieved, ranging from tens to thousands of milligrams per gram. Many MOFs have shown a high selectivity for their target metal ions. The corresponding mechanisms involved in capturing metal ions are outlined and finally, the challenges and prospects for their practical application are discussed.

scholarly journals Water-Stable Nanoscale Zirconium-Based Metal–Organic Frameworks for the Effective Removal of Glyphosate from Aqueous Media

ACS Omega ◽  
2018 ◽  
Vol 3 (7) ◽  
pp. 7832-7839 ◽  
Author(s):  
Asha Pankajakshan ◽  
Mekhola Sinha ◽  
Anupam Anand Ojha ◽  
Sukhendu Mandal
Keyword(s):  
Metal Organic Frameworks ◽  
Aqueous Media ◽  
Effective Removal ◽  
Metal Organic

scholarly journals Rapid Room-Temperature Preparation of Hierarchically Porous Metal–Organic Frameworks for Efficient Uranium Removal from Aqueous Solutions

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1539 ◽  
Author(s):  
Chongxiong Duan ◽  
Yi Zhang ◽  
Jiexin Li ◽  
Le Kang ◽  
Yawei Xie ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Adsorption Process ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Hierarchically Porous ◽  
Environment And Health ◽  
Effective Removal ◽  
Metal Organic ◽  
Enhanced Adsorption

The effective removal of uranium from an aqueous solution is a highly valuable process for the environment and health. In this study, we developed a facile and rapid method to synthesize hierarchically porous Cu-BTC (RT-Cu-BTC) using a cooperative template strategy. The as-synthesized RT-Cu-BTC exhibited hierarchically porous structure and excellent thermostability, as revealed by X-ray powder diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. Compared with conventional metal–organic frameworks (MOFs) and zeolites, the obtained RT-Cu-BTC exhibited enhanced adsorption capacity (839.7 mg·g−1) and high removal efficiency (99.8%) in the capture of uranium (VI) from aqueous solutions. Furthermore, the conditions such as adsorbent dose, contact time, and temperature in adsorption of uranium (VI) by RT-Cu-BTC were investigated in detail. The thermodynamics data demonstrated the spontaneous and endothermic nature of the uranium (VI) adsorption process. The Langmuir isotherm and pseudo-second-order models could better reflect the adsorption process of uranium (VI) onto RT-Cu-BTC. In addition, the as-synthesized RT-Cu-BTC showed excellent stability in removing uranium (VI) from an aqueous solution. This work provides a facile and rapid approach for fabricating hierarchically porous MOFs to realize a highly efficient removal of uranium (VI) from aqueous systems.

scholarly journals Highly Effective Removal of Metal Cyanide Complexes and Recovery of Palladium Using Quaternary-Ammonium-Functionalized MOFs

Molecules ◽  
2018 ◽  
Vol 23 (8) ◽  
pp. 2086 ◽  
Author(s):  
Qin Zhang ◽  
Muhan Chen ◽  
Lijiang Zhong ◽  
Qun Ye ◽  
Shaoshong Jiang ◽  
...  
Keyword(s):  
Quaternary Ammonium ◽  
Metal Organic Frameworks ◽  
Batch Studies ◽  
Metal Cyanide ◽  
Adsorption Capacities ◽  
Effective Removal ◽  
Highly Effective ◽  
Metal Organic ◽  
Cyanide Complexes ◽  
Removal Of Metal

In this study, quaternary-ammonium-functionalized metal–organic frameworks (MOFs) Et-N-Cu(BDC-NH2)(DMF), were prepared, characterized, and applied for the highly effective removal of metal cyanide complexes, including Pd(CN)42−, Co(CN)63−, and Fe(CN)63−. Batch studies were carried out, and the maximum adsorption capacities of Pd(II), Co(III), and Fe(III) reached 172.9, 101.0, and 102.6, respectively. Adsorption was rapid, and equilibrium was established within 30 min. Et-N-Cu(BDC-NH2)(DMF) exhibited high thermal and chemical stability. Furthermore, absorbed Pd(CN)42− was selectively recovered by two-step elution. First, Co(CN)63− and Fe(CN)63− were eluted with a 1.5 mol L−1 KCl solution. Elution rates of Co(CN)63− and Fe(CN)63− were greater than 98.0%, whereas the elution percentage of Pd(CN)42− was less than 2.0%. Second, >97.0% Pd(CN)42− on the loaded MOFs was eluted using a 2.0 mol L−1 KI solution. The recovery rate of Pd(CN)42− was greater than 91.0% after five testing cycles. Adsorption isotherms, kinetics models, and adsorption thermodynamics of Pd(CN)42− on Et-N-Cu(BDC-NH2) (DMF) were also systematically investigated. The Et-N-Cu(BDC-NH2) (DMF) absorbent exhibited a rapid, excellent ability for the adsorption of metal cyanide complexes.

Synergy Effect of Pore Structure and Amount of Carboxyl Site for Effective Removal of Pb2+ in Metal–Organic Frameworks

2019 ◽  
Vol 64 (6) ◽  
pp. 2728-2735 ◽  
Author(s):  
Xudong Zhao ◽  
Yaxin Wang ◽  
Yali Li ◽  
Wenjuan Xue ◽  
Jian Li ◽  
...  
Keyword(s):  
Pore Structure ◽  
Metal Organic Frameworks ◽  
Synergy Effect ◽  
Effective Removal ◽  
Metal Organic

Effective Removal of Antibacterial Drugs from Aqueous Solutions Using Porous Metal–Organic Frameworks

2019 ◽  
Vol 29 (4) ◽  
pp. 1305-1313 ◽  
Author(s):  
Fangfang Chai ◽  
Xudong Zhao ◽  
Huihui Gao ◽  
Yuwei Zhao ◽  
Hongliang Huang ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Antibacterial Drugs ◽  
Effective Removal ◽  
Metal Organic
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