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.

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.

Adsorption Characteristics of L-Phenylalanine in Drinking Water by Granule Activated Carbon

2012 ◽  
Vol 610-613 ◽  
pp. 259-263 ◽  
Author(s):  
Fei Shang ◽  
Xiao Lv Zhou ◽  
Zhen Xing Zhou ◽  
Chen Yan Hu ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Adsorption Capacity ◽  
Order Equation ◽  
High Adsorption ◽  
Adsorption Time ◽  
First Order ◽  
Best Fitting ◽  
Pseudo First Order ◽  
High Adsorption Capacity

In this paper,granular activated carbon GAC was used to investigate the adsorption capacity and adsorption rate of a typical nitrogen-containing organic compounds L-phenylalanine. GAC shows a high adsorption capacity for the L-phenylalanine and the adsorption isotherms conform to with Langmuir model.The pseudo-first-order equation shows the best fitting for adsorption kinetics in L-phenylalanine adsorption by GAC. Besides the factors such as the temperature, adsorption time and activated carbon quantity were studied.

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