Acidic Sugar Degradation Pathways

2009 ◽  
pp. 989-997 ◽  
Author(s):  
Xianghong Qian ◽  
Mark R. Nimlos ◽  
David K. Johnson ◽  
Michael E. Himmel
Keyword(s):  
Degradation Pathways ◽  
Sugar Degradation

scholarly journals Acidic Sugar Degradation Pathways: An Ab Initio Molecular Dynamics Study

2005 ◽  
Vol 124 (1-3) ◽  
pp. 0989-0998 ◽  
Author(s):  
Xianghong Qian ◽  
Mark R. Nimlos ◽  
David K. Johnson ◽  
Michael E. Himmel
Keyword(s):  
Molecular Dynamics ◽  
Ab Initio ◽  
Ab Initio Molecular Dynamics ◽  
Degradation Pathways ◽  
Sugar Degradation

The degradation pathways of carbamazepine in advanced oxidation process: A mini review coupled with DFT calculation

2021 ◽  
Vol 779 ◽  
pp. 146498
Author(s):  
Yunyi Li ◽  
Ying Yang ◽  
Jiamin Lei ◽  
Wen Liu ◽  
Meiping Tong ◽  
...  
Keyword(s):  
Dft Calculation ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Degradation Pathways

scholarly journals UV Stimulated Manganese Dioxide for the Persulfate Catalytic Degradation of Bisphenol A

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 502
Author(s):  
Guihua Dong ◽  
Bing Chen ◽  
Bo Liu ◽  
Stanislav R. Stoyanov ◽  
Yiqi Cao ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Reaction Mechanisms ◽  
Reduction Rate ◽  
Catalytic Degradation ◽  
Gas Chromatography Mass Spectrometry ◽  
Degradation Pathways ◽  
Industrial Chemicals ◽  
Oh Groups ◽  
Long Term Adverse Effects

One of the most commonly produced industrial chemicals worldwide, bisphenol A (BPA), is used as a precursor in plastics, resins, paints, and many other materials. It has been proved that BPA can cause long-term adverse effects on ecosystems and human health due to its toxicity as an endocrine disruptor. In this study, we developed an integrated MnO2/UV/persulfate (PS) process for use in BPA photocatalytic degradation from water and examined the reaction mechanisms, degradation pathways, and toxicity reduction. Comparative tests using MnO2, PS, UV, UV/MnO2, MnO2/PS, and UV/PS processes were conducted under the same conditions to investigate the mechanism of BPA catalytic degradation by the proposed MnO2/UV/PS process. The best performance was observed in the MnO2/UV/PS process in which BPA was completely removed in 30 min with a reduction rate of over 90% for total organic carbon after 2 h. This process also showed a stable removal efficiency with a large variation of pH levels (3.6 to 10.0). Kinetic analysis suggested that 1O2 and SO4•− played more critical roles than •OH for BPA degradation. Infrared spectra showed that UV irradiation could stimulate the generation of –OH groups on the MnO2 photocatalyst surface, facilitating the PS catalytic degradation of BPA in this process. The degradation pathways were further proposed in five steps, and thirteen intermediates were identified by gas chromatography-mass spectrometry. The acute toxicity was analyzed during the treatment, showing a slight increase (by 3.3%) in the first 30 min and then a decrease by four-fold over 2 h. These findings help elucidate the mechanism and pathways of BPA degradation and provide an effective PS catalytic strategy.

scholarly journals Moisture-Driven Degradation Pathways in Prussian White Cathode Material for Sodium-Ion Batteries

2021 ◽  
Author(s):  
Dickson O. Ojwang ◽  
Mikael Svensson ◽  
Christian Njel ◽  
Ronnie Mogensen ◽  
Ashok S. Menon ◽  
...  
Keyword(s):  
Cathode Material ◽  
Sodium Ion ◽  
Degradation Pathways ◽  
Sodium Ion Batteries

Mechanistic Insight into the Degradation Pathways of P-cresol in Ozonation, Peroxone, and Ozone-persulfate Process

2020 ◽  
pp. 1-13
Author(s):  
Su-Huan Kow ◽  
Muhammad Ridwan Fahmi ◽  
Che Zulzikrami Azner Abidin ◽  
Soon-an Ong
Keyword(s):  
Degradation Pathways ◽  
Mechanistic Insight ◽  
Insight Into

scholarly journals Separation and quantification of 2-Keto-3-deoxy-gluconate (KDG) a major metabolite in pectin and alginate degradation pathways

2020 ◽  
pp. 114061
Author(s):  
Shiny MARTIS. B ◽  
Michel DROUX ◽  
Florelle DEBOUDARD ◽  
William NASSER ◽  
Sam MEYER ◽  
...  
Keyword(s):  
Major Metabolite ◽  
Degradation Pathways ◽  
Alginate Degradation

Hydroxide Degradation Pathways for Substituted Trimethylammonium Cations: A DFT Study

2012 ◽  
Vol 116 (17) ◽  
pp. 9419-9426 ◽  
Author(s):  
Hai Long ◽  
Kwiseon Kim ◽  
Bryan S. Pivovar
Keyword(s):  
Dft Study ◽  
Degradation Pathways
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