Hydroxyl radical generation by cactus-like copper oxide nanoporous carbon catalysts for microcystin-LR environmental remediation

2016 ◽  
Vol 6 (2) ◽  
pp. 530-544 ◽  
Author(s):  
S. Karthikeyan ◽  
Dionysios D. Dionysiou ◽  
Adam F. Lee ◽  
S. Suvitha ◽  
P. Maharaja ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Copper Oxide ◽  
Hydroxyl Radical ◽  
Aqueous Phase ◽  
Environmental Remediation ◽  
Nanoporous Carbon ◽  
Catalytic Degradation ◽  
Radical Generation ◽  
Carbon Catalysts ◽  
Nanoporous Activated Carbon

Copper oxide supported on nanoporous activated carbon (CuO-NPAC) is reported for the aqueous phase catalytic degradation of cyanotoxin microcystin-LR (MC-LR).

scholarly journals Nanoporous Activated Carbon Derived from Rice Husk for High Performance Supercapacitor

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Huaxing Xu ◽  
Biao Gao ◽  
Hao Cao ◽  
Xueyang Chen ◽  
Ling Yu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Specific Capacitance ◽  
Current Density ◽  
Average Pore Size ◽  
Nanoporous Carbon ◽  
Cycle Life ◽  
Potential Candidate ◽  
Average Pore ◽  
Nanoporous Activated Carbon

Nanoporous activated carbon material was produced from the waste rice husks (RHs) by precarbonizing RHs and activating with KOH. The morphology, structure, and specific surface area were investigated. The nanoporous carbon has the average pore size of 2.2 nm and high specific area of 2523.4 m2 g−1. The specific capacitance of the nanoporous carbon is calculated to be 250 F g−1at the current density of 1 A g−1and remains 80% for 198 F g−1at the current density of 20 A g−1. The nanoporous carbon electrode exhibits long-term cycle life and could keep stable capacitance till 10,000 cycles. The consistently high specific capacitance, rate capacity, and long-term cycle life ability makes it a potential candidate as electrode material for supercapacitor.

Hydrogenation of phenol in aqueous phase with palladium on activated carbon catalysts

2007 ◽  
Vol 131 (1-3) ◽  
pp. 65-71 ◽  
Author(s):  
E. Díaz ◽  
A.F. Mohedano ◽  
L. Calvo ◽  
M.A. Gilarranz ◽  
J.A. Casas ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Aqueous Phase ◽  
Carbon Catalysts

Identification of by-products and toxicity assessment in aqueous-phase hydrodechlorination of diuron with palladium on activated carbon catalysts

Chemosphere ◽  
2013 ◽  
Vol 91 (9) ◽  
pp. 1317-1323 ◽  
Author(s):  
M. Al Bahri ◽  
L. Calvo ◽  
A.M. Polo ◽  
M.A. Gilarranz ◽  
A.F. Mohedano ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Aqueous Phase ◽  
Toxicity Assessment ◽  
Carbon Catalysts ◽  
By Products

Hydrogenation of sodium hydrogen carbonate in aqueous phase using metal/activated carbon catalysts

2018 ◽  
Vol 224 ◽  
pp. 368-375 ◽  
Author(s):  
Edelmira González ◽  
Cristian Marchant ◽  
Catherine Sepúlveda ◽  
Rafael García ◽  
I.Tyrone Ghampson ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Aqueous Phase ◽  
Sodium Hydrogen Carbonate ◽  
Sodium Hydrogen ◽  
Hydrogen Carbonate ◽  
Carbon Catalysts

Synthesis and characterization of Co-NPAC and in situ hydroxyl radical generation for the oxidation of dye laden wastewater from the leather industry

RSC Advances ◽  
2014 ◽  
Vol 4 (108) ◽  
pp. 63354-63366 ◽  
Author(s):  
S. Karthikeyan ◽  
R. Bavas Ahamed ◽  
M. Velan ◽  
G. Sekaran
Keyword(s):  
Activated Carbon ◽  
Organic Dye ◽  
Synthesis And Characterization ◽  
Leather Industry ◽  
Heterogeneous Fenton ◽  
Radical Generation ◽  
Heterogeneous Fenton Oxidation ◽  
Nanoporous Activated Carbon

Cobalt oxide supported on nanoporous activated carbon (Co-NPAC) could be utilized as a catalyst in the heterogeneous Fenton oxidation of organic dye chemicals in tannery wastewater.

scholarly journals Pretreatment of Switchgrass for Production of Glucose via Sulfonic Acid-Impregnated Activated Carbon

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 504
Author(s):  
Yane Ansanay ◽  
Praveen Kolar ◽  
Ratna Sharma-Shivappa ◽  
Jay Cheng ◽  
Consuelo Arellano
Keyword(s):  
Activated Carbon ◽  
Sulfonic Acid ◽  
Solid Acid ◽  
Methanesulfonic Acid ◽  
Biofuel Production ◽  
Acid Catalysts ◽  
Effects Of Temperature ◽  
Carbon Catalysts ◽  
Hydrolysis Of

In the present research, activated carbon-supported sulfonic acid catalysts were synthesized and tested as pretreatment agents for the conversion of switchgrass into glucose. The catalysts were synthesized by reacting sulfuric acid, methanesulfonic acid, and p-toluenesulfonic acid with activated carbon. The characterization of catalysts suggested an increase in surface acidities, while surface area and pore volumes decreased because of sulfonation. Batch experiments were performed in 125 mL serum bottles to investigate the effects of temperature (30, 60, and 90 °C), reaction time (90 and 120 min) on the yields of glucose. Enzymatic hydrolysis of pretreated switchgrass using Ctec2 yielded up to 57.13% glucose. Durability tests indicated that sulfonic solid-impregnated carbon catalysts were able to maintain activity even after three cycles. From the results obtained, the solid acid catalysts appear to serve as effective pretreatment agents and can potentially reduce the use of conventional liquid acids and bases in biomass-into-biofuel production.

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