Effective removal of uranium from aqueous solution by using novel sustainable porous Al2O3 materials derived from different precursors of aluminum

2020 ◽  
Vol 7 (3) ◽  
pp. 765-776 ◽  
Author(s):  
Jun Liao ◽  
Yong Zhang
Keyword(s):  
Aqueous Solution ◽  
Adsorption Capacity ◽  
Freeze Drying ◽  
High Adsorption ◽  
Effective Removal ◽  
High Adsorption Capacity

Novel porous Al2O3 materials with high adsorption capacity for U(vi) were prepared via solution-freeze-drying-calcination technology.

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.

Mesoporous activated carbon from polyethyleneterephthalate (PET) waste: pollutant adsorption in aqueous solution

2018 ◽  
Vol 42 (17) ◽  
pp. 14612-14619 ◽  
Author(s):  
Cínthia Soares de Castro ◽  
Luísa Nagyidai Viau ◽  
Júlia Teixeira Andrade ◽  
Thais A. Prado Mendonça ◽  
Maraísa Gonçalves
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Adsorption Capacity ◽  
Activated Carbons ◽  
Large Molecule ◽  
High Adsorption ◽  
Pet Waste ◽  
Mesoporous Activated Carbon ◽  
High Adsorption Capacity

Activated carbons of high mesoporosity were prepared from PET wastes and presented high adsorption capacity, including relatively large-molecule dyes.

Facile fabrication of PS/Fe3O4@PANi nanocomposite particles and their application for the effective removal of Cu2+

2017 ◽  
Vol 41 (23) ◽  
pp. 14137-14144 ◽  
Author(s):  
Yunxing Li ◽  
Ji Qiu ◽  
Sunjie Ye ◽  
Likui Wang ◽  
Cheng Yang ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
High Adsorption ◽  
Nanocomposite Particles ◽  
Effective Removal ◽  
Facile Fabrication ◽  
High Adsorption Capacity ◽  
Polyaniline Nanocomposite

Herein we reported a facile approach to fabricating polystyrene/Fe3O4@polyaniline nanocomposite particles with high adsorption capacity and good recyclability for Cu2+.

Carbonized medlar-core particles as a new biosorbent for removal of Cu2+ from aqueous solution and study of its surface morphology

2016 ◽  
Vol 74 (1) ◽  
pp. 236-245 ◽  
Author(s):  
Narges Samadani Langeroodi ◽  
Elaheh Safaei
Keyword(s):  
Aqueous Solution ◽  
Adsorption Capacity ◽  
Isotherm Models ◽  
Maximum Adsorption Capacity ◽  
High Adsorption ◽  
Langmuir Adsorption ◽  
Adsorption Isotherm Models ◽  
Freundlich Adsorption Isotherm ◽  
High Adsorption Capacity ◽  
Core Particles

The objective of this study was to investigate the use of carbonized medlar-core particles as a new biosorbent to remove Cu2+ from aqueous solution. Fourier transform infrared spectroscopy and scanning electron microscopy were used to characterize the biosorbent. This paper reports the effects of adsorbent dose, pH, temperature and concentration of adsorbate. Batch isotherm studies were also performed to understand the ability of the adsorbent. The adsorption behavior of the Cu2+ was studied using Langmuir and Freundlich adsorption isotherm models. The maximum adsorption capacity determined from the Langmuir adsorption equation has been found as 43.478 mg.g−1 at 298.15 K. The adsorption of Cu2+ by medlar core in carbonized form was spontaneous and endothermic. It was also found that the biosorption of Cu2+ followed second-order kinetics. Carbonized medlar-core particles showed great potential in aqueous solution due to the high adsorption capacity.

The performance of porous hexagonal BN in high adsorption capacity towards antibiotics pollutants from aqueous solution

2017 ◽  
Vol 325 ◽  
pp. 71-79 ◽  
Author(s):  
Qianqian Song ◽  
Yi Fang ◽  
Zhenya Liu ◽  
Lanlan Li ◽  
Yiran Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Adsorption Capacity ◽  
High Adsorption ◽  
High Adsorption Capacity

Functionalized and reusable polyethylene fibres for Au(iii) extraction from aqueous solution with high adsorption capacity and selectivity

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 87221-87229 ◽  
Author(s):  
Li-juan Pang ◽  
Rong Li ◽  
Qian-hong Gao ◽  
Jiang-tao Hu ◽  
Zhe Xing ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Radiation Grafting ◽  
High Adsorption ◽  
High Adsorption Capacity

Functional UHMWPE fibres, used for efficient and selective Au(iii) adsorption from aqueous solutions, were successfully synthesized by a radiation grafting method.

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