scholarly journals Effect of acrylic acid feed contents of microgels on catalytic activity of silver nanoparticles fabricated hybrid microgels

2015 ◽  
Vol 39 ◽  
pp. 96-107 ◽  
Author(s):  
Zahoor H. FAROOQI ◽  
Shanza Rauf KHAN ◽  
Robina BEGUM ◽  
Farah KANWAL ◽  
Ahsan SHARIF ◽  
...  
2021 ◽  
Vol 6 (22) ◽  
pp. 5474-5487
Author(s):  
Nishanthi Ezhumalai ◽  
Manivannan Nanthagopal ◽  
Shanmugam Chandirasekar ◽  
Manikandan Elumalai ◽  
Mathivanan Narayanasamy ◽  
...  

2007 ◽  
Vol 55 (12) ◽  
pp. 189-193 ◽  
Author(s):  
C. Maugans ◽  
B. Kumfer

Wet oxidation tests were performed on two pure compound streams: acetic acid and ammonia; and on two wastewater streams: acrylic acid wastewater and sulphide laden spent caustic. Test results showed that Mn/Ce and Pt/TiO2 were effective catalysts that greatly enhanced acetic acid, ammonia and acrylic acid wastewater destruction. However, the Mn/Ce catalyst performance appears to be inhibited by concentrated salts dissolved in solution. This could limit the applicability of this catalyst for the treatment of brackish wastewaters. Zr, Ce and Ce nanoparticles were also shown to exhibit some catalytic activity, however not to the extent of the Mn/Ce and the Pt/TiO2.


2019 ◽  
Vol 276 ◽  
pp. 243-254 ◽  
Author(s):  
Alexander Kyrychenko ◽  
Margaret M. Blazhynska ◽  
Maria V. Slavgorodska ◽  
Oleg N. Kalugin

2015 ◽  
Vol 13 (3) ◽  
pp. 389-393 ◽  
Author(s):  
Emine Sert

Abstract Within the framework of green chemistry, catalysts should be met different criteria such as biodegradability, recyclability, flammability, non-toxicity and low price. Acidic deep eutectic solvent (DES) have been synthesized for this purpose, by mixing para-toluene sulfonic acid and choline chloride. The catalytic activity of DES was studied in the esterification of acrylic acid with n-butanol. The usage of DES as catalyst is simple, safe and cheap. The effects of temperature, catalyst loading, n-butanol/acrylic acid molar ratio on the conversion of acrylic acid were performed. The batch reactor experiments were carried out at temperatures of 338, 348, 358 and 368 K, molar ratio of butanol to acrylic acid of 1, 2,3 and catalyst loading of 10, 15, 20 and 90 g/L. 90.2% of acrylic acid conversion was achieved at a temperature of 358 K and catalyst loading of 20 g/L. Reusability of DES was investigated. Reusability and catalytic activity makes DES efficient as catalyst.


2018 ◽  
Vol 6 (6) ◽  
pp. 6989-7001 ◽  
Author(s):  
Tushar Kanti Das ◽  
Sayan Ganguly ◽  
Poushali Bhawal ◽  
Sanjay Remanan ◽  
Sabyasachi Ghosh ◽  
...  

2014 ◽  
Vol 50 (65) ◽  
pp. 9196-9199 ◽  
Author(s):  
Zongzhao Sun ◽  
Ning Zhang ◽  
Yanmei Si ◽  
Shuai Li ◽  
Jiangwei Wen ◽  
...  

Colorimetric mercury(ii) assays with 96-cell plates were achieved by the mercury-stimulated catalytic activity of small silver nanoparticles in switchable gelatin.


2014 ◽  
Vol 2 (22) ◽  
pp. 8491-8499 ◽  
Author(s):  
Jun You ◽  
Chengcheng Zhao ◽  
Jinfeng Cao ◽  
Jinping Zhou ◽  
Lina Zhang

High-density silver nanoparticles immobilized on the surface of alginate microspheres exhibit excellent catalytic activity by reduction of p-nitrophenol.


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