Effect of Copper Contents on Sulfur Poisoning of Copper Ion-Exchanged Mordenite for NO Reduction by NH3

1995 ◽  
Vol 34 (5) ◽  
pp. 1616-1623 ◽  
Author(s):  
Sung-Won Ham ◽  
Hoon Choi ◽  
In-Sik Nam ◽  
Young Gul Kim
Keyword(s):  
No Reduction ◽  
Copper Ion ◽  
Sulfur Poisoning ◽  
Effect Of Copper

Effect of copper ion implantation on the optical properties and low-temperature conductivity of carbon films

2006 ◽  
Vol 40 (4) ◽  
pp. 414-419 ◽  
Author(s):  
I. A. Faĭzrakhmanov ◽  
V. V. Bazarov ◽  
A. L. Stepanov ◽  
I. B. Khaĭbullin
Keyword(s):  
Optical Properties ◽  
Low Temperature ◽  
Ion Implantation ◽  
Copper Ion ◽  
Carbon Films ◽  
Temperature Conductivity ◽  
Effect Of Copper

Durability of Cu/SAPO-34 catalyst for NO reduction by ammonia: Potassium and sulfur poisoning

2015 ◽  
Vol 59 ◽  
pp. 35-39 ◽  
Author(s):  
Xuesong Liu ◽  
Xiaodong Wu ◽  
Duan Weng ◽  
Zhichun Si
Keyword(s):  
No Reduction ◽  
Sulfur Poisoning

scholarly journals An Improved Method to Encapsulate Laccase from Trametes versicolor with Enhanced Stability and Catalytic Activity

Catalysts ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 286 ◽  
Author(s):  
Sitong Zhang ◽  
Zhuofu Wu ◽  
Guang Chen ◽  
Zhi Wang
Keyword(s):  
Trametes Versicolor ◽  
Degradation Rate ◽  
Specific Activity ◽  
Copper Ion ◽  
Fold Increase ◽  
Alginate Beads ◽  
Improved Method ◽  
Alginate Concentration ◽  
Effect Of Copper ◽  
Enhanced Stability

In this work, laccase from Trametes versicolor pretreated with copper ion solution was entrapped in copper alginate beads. The presence of laccase in copper alginate beads was verified by Fourier transform infrared (FTIR) spectroscopy. The alginate concentration used was optimized based on the specific activity and immobilization yield. After entrapment, laccase presents perfect pH stability and thermal stability with 2,2′-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) as the substrate. Moreover, laccase in copper alginate beads exhibits good reusability during continuous batch operation for removing 2,4-dichlorophenol. More importantly, owing to the coupled effect of copper ion activation and copper alginate entrapment, the entrapped laccase shows a 3.0-fold and a 2.4-fold increase in specific activity and 2,4-DCP degradation rate compared with that of free laccase, respectively.

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