Properties of Polyethylene Glycol Supported Tetraarylporphyrin in Aqueous Solution and Its Interaction with Liposomal Membranes

2008 ◽  
Vol 112 (39) ◽  
pp. 12231-12239 ◽  
Author(s):  
Kinga Nawalany ◽  
Bartlomiej Kozik ◽  
Mariusz Kepczynski ◽  
Szczepan Zapotoczny ◽  
Marta Kumorek ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Polyethylene Glycol ◽  
Liposomal Membranes

A highly selective and reversible water-soluble polymer based-colorimetric chemosensor for rapid detection of Cu2+ in pure aqueous solution

2016 ◽  
Vol 40 (5) ◽  
pp. 4513-4518 ◽  
Author(s):  
Guang Li ◽  
Farong Tao ◽  
Qian Liu ◽  
Liping Wang ◽  
Zhuang Wei ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Polyethylene Glycol ◽  
Rapid Detection ◽  
Water Soluble ◽  
Soluble Polymer ◽  
Water Soluble Polymer ◽  
Colorimetric Chemosensor ◽  
Pure Aqueous Solution

A novel reversible colorimetric chemosensor based on polyethylene glycol has been developed to detect Cu2+ ions in pure aqueous solution.

A green method based on electro-assisted and photo-assisted regeneration for removal of chromium(VI) from aqueous solution

2018 ◽  
Vol 2017 (3) ◽  
pp. 896-902 ◽  
Author(s):  
Jianyu Xing ◽  
Yu Shen ◽  
Bin Yang ◽  
Dongdong Feng ◽  
Wei Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Polyethylene Glycol ◽  
Adsorption Capacity ◽  
Filter Paper ◽  
High Adsorption ◽  
High Concentration ◽  
Green Method ◽  
Chromium Vi ◽  
Chemical Regeneration ◽  
High Adsorption Capacity

Abstract In general, spent adsorbent is regenerated using high-concentration chemicals. Although chemical regeneration is efficient, it often leads to adsorbent damage and secondary waste. To overcome these problems, electro-assisted and photo-assisted regeneration were proposed in this study for the remediation of hexavalent chromium (Cr(VI)). Filter paper was decorated with polyethylene glycol (PEG) and polypyrrole (PPy) to fabricate a FP/PEG/PPy nanocomposite, which could be used as an adsorbent for Cr(VI) with a high adsorption capacity. Moreover, it could be regenerated by electro-assisted or photo-assisted regeneration to reduce eluent use. As a result, secondary waste could be greatly reduced.

Study on Influence of Polyethylene Glycol on Dispersion of Pyrite Powder in Aqueous Solution

2012 ◽  
Vol 554-556 ◽  
pp. 349-352
Author(s):  
Dan Li ◽  
Zhou Lan Yin ◽  
Qi Yuan Chen
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Bonding ◽  
Polyethylene Glycol ◽  
Spectroscopic Analysis ◽  
Ph Value ◽  
Aqueous Suspension ◽  
Dispersion Stability ◽  
The Stability ◽  
High Degree ◽  
Effective Additive

The influences of three kinds of polyethylene glycol (PEG), namely PEG-200, PEG-1000 and PEG-20000, on the dispersion stability of pyrite powder in aqueous solution were investigated by spectrophotometry. The results indicated that the stability of pyrite powder dispersed in aqueous solution was remarkably dependent upon the molecular weight and content of PEG, pH value of suspension, and ultrasonication power. Among three kinds of polyethylene glycol, PEG-20000 was the most effective additive to improve the dispersion stability and wettability of pyrite powder in water. When 8% PEG-20000 was employed as the dispersant, the best dispersion stability of pyrite powder in aqueous solution could be obtained under the conditions of pH at 5-6 and 100-W ultrasonication power. The FTIR spectroscopic analysis showed that the adsorption between the polyethylene glycol and pyrite ore powder was formed by hydrogen bonding. The adsorption of polyethylene glycol onto the surface of pyrite powder via hydrogen bonding provided a high degree of steric stabilization, which effectively prohibited the aggregation of pyrite powder, and thus the dispersion stability of as-formed aqueous suspension was promoted.

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