Microwave‐Assisted Synthesis of HKUST‐1 and Functionalized HKUST‐1‐@H3PW12O40: Selective Adsorption of Heavy Metal Ions in Water Analyzed with Synchrotron Radiation

ChemPhysChem ◽  
2013 ◽  
Vol 14 (12) ◽  
pp. 2825-2832 ◽  
Author(s):  
Fang Zou ◽  
Runhan Yu ◽  
Rongguan Li ◽  
Wei Li
Keyword(s):  
Heavy Metal ◽  
Synchrotron Radiation ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Selective Adsorption ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

Straw-sheaf-like terbium-based coordination polymer architectures: microwave-assisted synthesis and their application as selective luminescent probes for heavy metal ions

2015 ◽  
Vol 39 (4) ◽  
pp. 2973-2979 ◽  
Author(s):  
Mengmeng Shi ◽  
Chenghui Zeng ◽  
Lei Wang ◽  
Zhiwen Nie ◽  
Yongxia Zhao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Coordination Polymer ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Microwave Assisted Synthesis ◽  
Luminescent Probes ◽  
Microwave Assisted ◽  
Highly Sensitive ◽  
Polymer Architectures

Terbium-based coordination polymer architectures were successfully synthesized via a microwave heating approach and they showed highly sensitive and selective luminescence quenching to Pb2+ in aqueous solution.

scholarly journals Microwave-assisted synthesis of glutathione-coated hollow zinc oxide for the removal of heavy metal ions from aqueous systems

RSC Advances ◽  
2019 ◽  
Vol 9 (28) ◽  
pp. 15976-15985 ◽  
Author(s):  
Lateef Ahmad Malik ◽  
Arshid Bashir ◽  
Taniya Manzoor ◽  
Altaf Hussain Pandith
Keyword(s):  
Heavy Metal ◽  
Zinc Oxide ◽  
Metal Ions ◽  
Specific Surface ◽  
Heavy Metal Ions ◽  
High Specific Surface Area ◽  
Environmentally Benign ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Enhanced Adsorption

Environmentally benign Glu@h-ZnO possesses good affinity for heavy metal ions, with enhanced adsorption capacity due to its high specific surface area.

scholarly journals Effects of Electronegativity and Hydration Energy on the Selective Adsorption of Heavy Metal Ions by Synthetic NaX Zeolite

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4066
Author(s):  
Xianyuan Fan ◽  
Hong Liu ◽  
Emmanuella Anang ◽  
Dajun Ren
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Adsorption Capacity ◽  
Heavy Metal Ions ◽  
Binary Systems ◽  
Adsorption Mechanism ◽  
Selective Adsorption ◽  
Hydration Energy ◽  
Nax Zeolite ◽  
High Electronegativity

The adsorption capacity of synthetic NaX zeolite for Pb2+, Cd2+, Cu2+ and Zn2+ in single and multi-component systems were investigated. The effects of electronegativity and hydration energy on the selective adsorption, as well as potential selective adsorption mechanism of the NaX zeolite for Pb2+, Cd2+, Cu2+ and Zn2+ were also discussed. The maximum adsorption capacity order of the heavy metals in the single system was Pb2+ > Cd2+ > Cu2+ > Zn2+, and this could be related to their hydration energy and electronegativity. The values of the separation factors (α) and affinity constant (KEL) in different binary systems indicated that Pb2+ was preferentially adsorbed, and Zn2+ presented the lowest affinity for NaX zeolite. The selective adsorption capacities of the metals were in the order, Pb2+ > Cd2+ ≈ Cu2+ > Zn2+. The trend for the selective adsorption of NaX zeolite in ternary and quaternary systems was consistent with that in the binary systems. Pb2+ and Cu2+ reduced the stability of the Si-O-Al bonds and the double six-membered rings in the NaX framework, due to the high electronegativity of Pb2+ and Cu2+ than that of Al3+. The selective adsorption mechanism of NaX zeolite for the high electronegative metal ions could mainly result from the negatively charged O in the Si-O-Al structure of the NaX zeolite, hence heavy metal ions with high electronegativity display a strong affinity for the electron cloud of the oxygen atoms in the Si-O-Al. This study could evaluate the application and efficiency of zeolite in separating and recovering certain metal ions from industrial wastewater.

scholarly journals Insight into the Synergistic Effect on Selective Adsorption for Heavy Metal Ions by a Polypyrrole/TiO2Composite

Langmuir ◽  
2018 ◽  
Vol 34 (34) ◽  
pp. 10187-10196 ◽  
Author(s):  
Jie Chen ◽  
Mengting Yu ◽  
Caiyun Wang ◽  
Jiangtao Feng ◽  
Wei Yan
Keyword(s):  
Heavy Metal ◽  
Synergistic Effect ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Selective Adsorption ◽  
Insight Into
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