scholarly journals Optimizing spatial pore-size and porosity distributions of adsorbents for enhanced adsorption and desorption performance

2015 ◽  
Vol 132 ◽  
pp. 108-117 ◽  
Author(s):  
Guanghua Ye ◽  
Xuezhi Duan ◽  
Kake Zhu ◽  
Xinggui Zhou ◽  
Marc-Olivier Coppens ◽  
...  
Keyword(s):  
Pore Size ◽  
Adsorption And Desorption ◽  
Enhanced Adsorption ◽  
Adsorption And Desorption Performance

Characterization of Nanosilica of Tapioca Peel as Adsorbent for Biomethane Storage System

2015 ◽  
Vol 1125 ◽  
pp. 266-270
Author(s):  
Hasnizah binti Habibun ◽  
Shareena Fairuz binti Abdul Manaf ◽  
Nur Hashimah Alias ◽  
Nur Shahidah Ab Aziz ◽  
Fazlena Hamzah
Keyword(s):  
Physical Properties ◽  
Metal Oxides ◽  
Surface Area ◽  
Storage System ◽  
Physical Structure ◽  
Area Measurement ◽  
Bet Surface Area ◽  
X Ray Diffraction ◽  
Adsorption And Desorption ◽  
Adsorption And Desorption Performance

Biomethane is an alternative and renewable source that occurred naturally which produced from the anaerobic digestion of organic matter. It can be used as the electricity power generation, water heating and also vehicle fuel. In this study, the characteristics of the nanosilica of the tapioca peel as an adsorbent on the structural and physical properties to store the biomethane were investigated. To enhance the adsorption and desorption performance as well as the structural and physical properties, the nanosilica was modified with the metal oxides. The metal oxides that have been used to modify the nanosilica adsorbent are zinc (II) oxide (ZnO) and nickel (II) oxide (NiO). Both of the modified and unmodified nanosilica structural properties were characterized by using X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM). While, the physical properties of both of the modified and unmodified nanosilica were characterized by using Brunauer, Emmet, Teller (BET) surface area measurement. The effects of both types of metal oxides with different concentration were investigated. Based on the results obtained, the structural and physical characteristics of the nanosilica were affected by the different metal oxides loading. It have been identified that 1% ZnO modified nanosilica has highest BET surface area (8.32 m2/g) with pore volume (19.23 cc/g) and pore size (82.8 nm). Thus, it concluded that 1% ZnO modified nanosilica improved the structural and physical structure. Hence, it enhances the capacity of methane adsorption and desorption prior to storage system.

Study on Adsorption and Desorption Performance of Reactive Dyes on Anionic Exchange Membrane

2011 ◽  
Vol 332-334 ◽  
pp. 168-172 ◽  
Author(s):  
Tie Ling Xing ◽  
Hu Kai ◽  
Guo Qiang Chen
Keyword(s):  
Water Solution ◽  
Adsorption Model ◽  
Dynamics Model ◽  
Adsorption And Desorption ◽  
Langmuir Adsorption ◽  
Anionic Exchange ◽  
Adsorption Processes ◽  
Adsorption And Desorption Performance ◽  
Exchange Membrane ◽  
Anionic Exchange Membrane

The adsorption and desorption performance of Reactive Brilliant Red K-2BP and Reactive Brilliant Red K-2G on anionic exchange membrane were studied. The adsorption and desorption performances of anionic exchange membrane under different conditions were compared. The results showed that the adsorption accords with the pseudo-second dynamics model. Langmuir adsorption model could well describe adsorption processes. The addition of inorganic salt Na2SO4 in the dye solution had certain influence on the adsorption. The desorption percentage could reach above 80% using the mixture of ethanol, sodium chloride and water solution as desorbent, and the anionic exchange membrane could be reused.

scholarly journals Adsorption and desorption performance of benzene over hierarchically structured carbon–silica aerogel composites

2011 ◽  
Vol 196 ◽  
pp. 194-200 ◽  
Author(s):  
Baojuan Dou ◽  
Jinjun Li ◽  
Yufei Wang ◽  
Hailin Wang ◽  
Chunyan Ma ◽  
...  
Keyword(s):  
Silica Aerogel ◽  
Adsorption And Desorption ◽  
Adsorption And Desorption Performance

Study on Adsorption and Desorption Performance of Direct Dyes on Anionic Exchange Membrane

2012 ◽  
Vol 550-553 ◽  
pp. 648-652
Author(s):  
Kai Hu ◽  
Jie Xu ◽  
Tie Ling Xing ◽  
Guo Qiang Chen
Keyword(s):  
Water Solution ◽  
Adsorption Model ◽  
Direct Dyes ◽  
Adsorption And Desorption ◽  
Direct Blue ◽  
Anionic Exchange ◽  
Adsorption Processes ◽  
Adsorption And Desorption Performance ◽  
Exchange Membrane ◽  
Anionic Exchange Membrane

The adsorption and desorption performance of C.I. Direct Red 13 and C.I. Direct Blue 6 on anionic exchange membrane were studied. The adsorption and desorption performances of anionic exchange membrane under different conditions were compared. The results showed that the adsorption accords with the pseudo-second dynamics model. Langmuir adsorption model could well describe adsorption processes. The addition of inorganic salt Na2SO4 in the dye solution had certain influence on the adsorption. The desorption percentage could reach above 80% using the mixture of ethanol, sodium chloride and water solution as desorbent, and the anionic exchange membrane could be reused.

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