The relationship between oxidation and hydrolysis in the conversion of cellulose in NaVO3–H2SO4 aqueous solution with O2

2015 ◽  
Vol 17 (1) ◽  
pp. 335-342 ◽  
Author(s):  
Muge Niu ◽  
Yucui Hou ◽  
Shuhang Ren ◽  
Wenhua Wang ◽  
Qitian Zheng ◽  
...  

Conversion of cellulose in NaVO3–H2SO4 aqueous solution with O2 is subject to competitive relationship between oxidation and hydrolysis.

1999 ◽  
Vol 39 (10-11) ◽  
pp. 225-230 ◽  
Author(s):  
Jong-Nan Chen ◽  
Yi-Chin Chan ◽  
Ming-Chun Lu

The decomposition of chlorophenols in aqueous solution with UV-illuminated TiO2 suspensions in the presence of manganese ions was studied. It was found that the removal rate of chlorophenols would be the highest at pH 3 in the presence of 1.18×10−4 M manganese ion. The effect of ionic strength on the 2-CP decomposition can be ignored in the range from 0.1 to 0.005 M for NaClO4. This study is also to explore the relationship between the adsorption rate and reaction rate. Results showed that the more the adsorption rate the more the decomposition rate for the three chlorophenols. Manganese ions can increase the photocatalytic oxidation of 2-chlorophenol in terms of DOC. The relationship between temperature and reaction rate for 2-CP is k = 0.0043T - 1.2146.


2020 ◽  
Vol 25 (1) ◽  
pp. 25-32
Author(s):  
Artemi-Maria Gioti

This article explores the relationship and disparities between human and computational creativity by addressing the following questions: How well are computational creativity systems currently performing at creative tasks? Could computers outperform human composers? And, if not, is computational creativity a utopia? Automatic composition systems are examined with respect to Boden’s three criteria of creativity (novelty, surprise and value), as well as their assumptions about the nature of creativity. As an alternative to a competitive relationship between human and computational creativity, the article proposes the concept of a distributed human–computer co-creativity, in which computational creativity extends – rather than replaces – human creativity, by expanding the space of creative possibilities.


2016 ◽  
Vol 18 (17) ◽  
pp. 4725-4732 ◽  
Author(s):  
Ting Lu ◽  
Muge Niu ◽  
Yucui Hou ◽  
Weize Wu ◽  
Shuhang Ren ◽  
...  

In this work, the most frequently-used heteropoly acid H5PV2Mo10O40 was employed with a pH “modifier” of H2SO4 in aqueous solution for the catalytic oxidation of cellulose to formic acid.


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