Catalytic performance and mechanism of biochars for dechlorination of tetrachloroethylene in sulfide aqueous solution

2020 ◽  
Vol 278 ◽  
pp. 119285
Author(s):  
Yadong Yang ◽  
Ruofan Wang ◽  
Longzhen Ding ◽  
Dan Qu ◽  
Yuting Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Catalytic Performance ◽  
Performance And Mechanism

scholarly journals H3PMo12O40 Immobilized on Amine Functionalized SBA-15 as a Catalyst for Aldose Epimerization

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 507
Author(s):  
Hui Wang ◽  
Meiyin Wang ◽  
Jining Shang ◽  
Yuanhang Ren ◽  
Bin Yue ◽  
...  
Keyword(s):  
Activation Energy ◽  
Aqueous Solution ◽  
Heterogeneous Catalysts ◽  
Phosphomolybdic Acid ◽  
Catalytic Performance ◽  
Catalytic Activities ◽  
Amine Functionalized

In this work various amount of phosphomolybdic acid (PMo) were immobilized on amine functionalized SBA-15 and used as heterogeneous catalysts in the epimerization of glucose in aqueous solution. 13.3PMo/NH2-SBA-15 exhibited the best catalytic performance with a glucose conversion of 34.8% and mannose selectivity of 85.6% within two hours at 120 °C. The activation energy of 80.1 ± 0.1 kJ·mol−1 was lower than that of 96 kJ·mol−1 over the homogeneous H3PMo12O40 catalyst. The catalytic activities of 13.3PMo/NH2-SBA-15 for the transformation of some other aldoses including mannose, arabinose and xylose were also investigated.

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