Catalytic ozonation of thymol in reverse osmosis concentrate with core/shell Fe 3 O 4 @SiO 2 @Yb 2 O 3 catalyst: Parameter optimization and degradation pathway

2017 ◽  
Vol 25 (5) ◽  
pp. 665-670 ◽  
Author(s):  
Liang Wang ◽  
Anqi Liu ◽  
Zhaohui Zhang ◽  
Bin Zhao ◽  
Yingming Xia ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Parameter Optimization ◽  
Degradation Pathway ◽  
Catalytic Ozonation ◽  
Core Shell

Catalytic ozonation of high concentrations of catechol over TiO2@Fe3O4 magnetic core-shell nanocatalyst: Optimization, toxicity and degradation pathway studies

2018 ◽  
Vol 192 ◽  
pp. 597-607 ◽  
Author(s):  
Majid Kermani ◽  
Babak Kakavandi ◽  
Mahdi Farzadkia ◽  
Ali Esrafili ◽  
Sevda Fallah Jokandan ◽  
...  
Keyword(s):  
Degradation Pathway ◽  
Magnetic Core ◽  
Catalytic Ozonation ◽  
Core Shell ◽  
High Concentrations

Treatment of Landfill Leachate Reverse Osmosis Concentrate from by Catalytic Ozonation with γ-Al2O3

2018 ◽  
Vol 35 (5) ◽  
pp. 501-511 ◽  
Author(s):  
Yongli He ◽  
Heng Zhang ◽  
JingJing Li ◽  
Yunhong Zhang ◽  
Bo Lai ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Landfill Leachate ◽  
Catalytic Ozonation

Insights into mechanism of catalytic ozonation of cinnamyl alcohol over core-shell Fe3O4@SiO2@La2O3 catalyst

2021 ◽  
pp. 119969
Author(s):  
Jinshan Song ◽  
Nengwei Ma ◽  
Wenqing Chen ◽  
Jianmeng Chen ◽  
Qizhou Dai
Keyword(s):  
Catalytic Ozonation ◽  
Core Shell ◽  
Cinnamyl Alcohol

scholarly journals Degradation of Bisphenol-A: A Contaminant of Emerging Concern Using Catalytic Ozonation By Activated Carbon Impregnated Nanocomposite-Bimetallic Catalyst

2021 ◽  
Author(s):  
Hariprasad Pokkiladathu ◽  
Salman Farissi ◽  
Anbazhagi Sakkarai ◽  
Muthukumar Muthuchamy
Keyword(s):  
Activated Carbon ◽  
Bisphenol A ◽  
Bimetallic Catalyst ◽  
Degradation Pathway ◽  
Catalytic Ozonation ◽  
Toc Removal ◽  
Treated Sample ◽  
Aromatic Degradation ◽  
Exponential Population Growth ◽  
Pollution Events

Abstract Rampant water pollution events and rising water demand caused by exponential population growth and depleting freshwater resources speak of an impending water crisis. The inability of conventional wastewater treatment systems to remove Contaminants of Emerging Concern (CEC) such as Bisphenol-A (BPA) beckons for new and efficient technologies to remove them from wastewater and water sources. Advanced oxidation processes such as ozonation are primarily known for their capability to oxidize and degrade organic entities in water but optimum mineralization levels were hard to achieve. In this study, we synthesized an activated carbon impregnated nanocomposite-bimetallic catalyst (AC/CeO2/ZnO) and used it along with ozonation to remove BPA from water. The catalyst was characterized using BET, XRD, FESEM, Raman spectra, and DLS studies. Catalytic ozonation achieved TOC removal 25% higher than non-catalytic ozonation process. The degradation pathway of BPA was proposed using LC-MS/LC-Q-TOF studies that found six main aromatic degradation byproducts. Catalytic ozonation and non-catalytic ozonation followed similar degradation pathways. The formation of persistent aliphatic acidic byproducts in the treated sample made TOC removal above 61% difficult.

Mineralization of salicylic acid via catalytic ozonation with Fe-Cu@SiO2 core-shell catalyst: A two-stage first order reaction

Chemosphere ◽  
2019 ◽  
Vol 235 ◽  
pp. 470-480 ◽  
Author(s):  
Weirui Chen ◽  
Yixiang Bao ◽  
Xukai Li ◽  
Jun Huang ◽  
Yiming Tang ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Catalytic Ozonation ◽  
Order Reaction ◽  
First Order Reaction ◽  
Core Shell ◽  
Two Stage ◽  
First Order
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