Treatment of nano-sized rutile TiO2 powder in hydrogen peroxide under microwave irradiation and investigation on its sonocatalytic activity

2009 ◽  
Vol 45 (6) ◽  
pp. 651-658 ◽  
Author(s):  
Jun Wang ◽  
Zhao Hong Zhang ◽  
Jia Li ◽  
Ying Peng Xie ◽  
Zhe Jiang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Microwave Irradiation ◽  
Tio2 Powder ◽  
Rutile Tio2

Degradation of humic acid using hydrogen peroxide activated by CuO-Co3O4@AC under microwave irradiation

2017 ◽  
Vol 330 ◽  
pp. 783-791 ◽  
Author(s):  
Xiaosheng Yao ◽  
Qintie Lin ◽  
Lingze Zeng ◽  
Jiangxin Xiang ◽  
Guangcai Yin ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Humic Acid ◽  
Microwave Irradiation

scholarly journals Investigation on transition crystal of ordinary rutile TiO2 powder and its sonocatalytic activity

2007 ◽  
Vol 14 (2) ◽  
pp. 246-252 ◽  
Author(s):  
Jun Wang ◽  
Teng Ma ◽  
Zhaohong Zhang ◽  
Xiangdong Zhang ◽  
Yuefeng Jiang ◽  
...  
Keyword(s):  
Tio2 Powder ◽  
Rutile Tio2

scholarly journals Assessment of Degradation Behavior for Acetylsalicylic Acid Using a Plasma in Liquid Process

Catalysts ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 965 ◽  
Author(s):  
Hye-Jin Bang ◽  
Heon Lee ◽  
Young-Kwon Park ◽  
Hyung-Ho Ha ◽  
Young Hyun Yu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Acetylsalicylic Acid ◽  
Degradation Rate ◽  
Electrical Power ◽  
Initial Increase ◽  
Tio2 Powder ◽  
Plasma Generation ◽  
Pharmacologically Active ◽  
Decomposition Efficiency ◽  
Plasma In Liquid

Acetylsalicylic acid (ASA) is a pharmacologically active compound. In this study, ASA was decomposed effectively using a plasma in liquid phase process with hydrogen peroxide and TiO2 photocatalyst. Increasing the electrical power conditions (frequency, applied voltage, and pulse width) promoted plasma generation, which increased the rate of ASA decomposition. The added hydrogen peroxide increased the rate of ASA degradation, but injecting an excess decreased the degradation rate due to a scavenger effect. Although there was an initial increase in the decomposition efficiency by the addition of TiO2 powder, the addition of an excessive amount inhibited the generation of plasma and decreased the degradation rate. The simultaneous addition of H2O2 and TiO2 powder resulted in the highest degradation efficiency. We suggest that ASA is converted to salicylic acid through demethylation by hydroxyl radicals and is finally mineralized to carbon dioxide and water via 2,4-dihydroxy benzoic acid and low molecular acids.

scholarly journals Crystalline phase regulation of anatase–rutile TiO2 for the enhancement of photocatalytic activity

RSC Advances ◽  
2020 ◽  
Vol 10 (71) ◽  
pp. 43592-43598
Author(s):  
Kuang Wang ◽  
Yan Zhuo ◽  
Jiayi Chen ◽  
Dawei Gao ◽  
Yu Ren ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Photocatalytic Activity ◽  
Nitric Acid ◽  
Crystalline Phase ◽  
Crystalline Phases ◽  
Rutile Tio2 ◽  
Potassium Titanate ◽  
Phase Regulation ◽  
Calcination Method

Biphasic TiO2 with adjustable crystalline phases was prepared by the hydrothermal-calcination method assisted by nitric acid (HNO3) and hydrogen peroxide (H2O2), using potassium titanate oxalate (K2TiO(C2O4)2) as the titanium source.

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