Lignin – from natural adsorbent to activated carbon: A review

2007 ◽  
Vol 98 (12) ◽  
pp. 2301-2312 ◽  
Author(s):  
Suhas ◽  
P.J.M. Carrott ◽  
M.M.L. Ribeiro Carrott
Keyword(s):  
Activated Carbon ◽  
Natural Adsorbent

scholarly journals Role of modified activated carbon by H3PO4or K2CO3from natural adsorbent for removal of Pb(II) from aqueous solutions

2012 ◽  
Vol 13 (2) ◽  
pp. 115-120 ◽  
Author(s):  
Mahboobeh Manoochehri ◽  
Ameneh Khorsand ◽  
Elham Hashemi
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Modified Activated Carbon ◽  
Natural Adsorbent

scholarly journals Role of Activated Carbon Modified by H3PO4and K2CO3From Natural Adsorbent for Removal of Pb (II) From Aqueous Solutions

2012 ◽  
Vol 13 (3) ◽  
pp. 167-172 ◽  
Author(s):  
Mahboobeh Manoochehri ◽  
Ameneh Khorsand ◽  
Elham Hashemi
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Natural Adsorbent

Activated carbon derived from date stone as natural adsorbent for phenol removal from aqueous solution

2017 ◽  
Vol 72 ◽  
pp. 406-417 ◽  
Author(s):  
Hasan Pasalari ◽  
Hamid Reza Ghaffari ◽  
Amir Hossein Mahvi ◽  
Mina Pourshabanian ◽  
Ali Azari
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Phenol Removal ◽  
Natural Adsorbent

Study of natural adsorbent chitosan and derivatives for the removal of caffeine from water

2012 ◽  
Vol 47 (1) ◽  
pp. 80-90 ◽  
Author(s):  
Serena Sanford ◽  
Kripa S. Singh ◽  
Sahil Chaini ◽  
Gaetan LeClair
Keyword(s):  
Hydrogen Peroxide ◽  
Activated Carbon ◽  
Adsorption Capacity ◽  
Mesoporous Materials ◽  
Isotherm Models ◽  
Batch Adsorption ◽  
Chemical Modifications ◽  
High Affinity ◽  
Natural Adsorbent ◽  
Batch Tests

The adsorption of caffeine was evaluated using natural adsorbent chitosan and three derivates of the material. Raw, H2O2 pre-treated, and a chemically altered chitosan were compared to activated carbon. Activated carbon was found to have a high affinity for caffeine (98% removal) while raw chitosan performed poorly with an average adsorption of 15.9%. Batch tests in acidic and basic conditions as well as increasing dosage did not have an effect on the performance. Chemical modifications to chitosan included calcinated mesoporous materials and non-calcinated materials, both of which increased chitosan adsorption of caffeine to 29 and 40%, respectively. Hydrogen peroxide pre-treated chitosan performed best of chitosan-based adsorbents, and reached a 46% removal of caffeine in batch adsorption tests. The majority of the adsorbents had low correlation to the Langmuir, Freundlich, and Redlich–Peterson isotherm models. However, data were sufficient to compare adsorption capacity for caffeine among activated carbon, chitosan, and chitosan derivatives.

Thermal stability and decomposition of perfluoroalkyl substances on spent granular activated carbon

2020 ◽  
Author(s):  
Feng Xiao ◽  
Bin Yao ◽  
Pavankumar Challa Sasi ◽  
Svetlana Golovko ◽  
Dana Soli ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Perfluoroalkyl Substances

Modification of activated carbon fiber pore structure by coke deposition

2001 ◽  
Vol 11 (PR3) ◽  
pp. Pr3-279-Pr3-286
Author(s):  
X. Dabou ◽  
P. Samaras ◽  
G. P. Sakellaropoulos
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Pore Structure ◽  
Activated Carbon Fiber ◽  
Coke Deposition

Enhancing the power generation of Rhodopseudomonas palustris-based MFC

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1261-1268
Author(s):  
Shu Otani ◽  
Dang-Trang Nguyen ◽  
Kozo Taguchi
Keyword(s):  
Activated Carbon ◽  
Rhodopseudomonas Palustris ◽  
Ozone Treatment ◽  
Maximum Power Density ◽  
On Demand ◽  
Long Time ◽  
Dry Conditions ◽  
Carbon Sheet ◽  
Uv Ozone

In this study, a portable and disposable paper-based microbial fuel cell (MFC) was fabricated. The MFC was powered by Rhodopseudomonas palustris bacteria (R. palustris). An activated carbon sheet-based anode pre-loaded organic matter (starch) and R. palustris was used. By using starch in the anode, R. palustris-loaded on the anode could be preserved for a long time in dry conditions. The MFC could generate electricity on-demand activated by adding water to the anode. The activated carbon sheet anode was treated by UV-ozone treatment to remove impurities and to improve its hydrophilicity before being loaded with R. palustris. The developed MFC could generate the maximum power density of 0.9 μW/cm2 and could be preserved for long-term usage with little performance degradation (10% after four weeks).

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