Enhanced photocatalytic degradation of gaseous toluene and liquidus tetracycline by anatase/rutile titanium dioxide with heterophase junction derived from materials of Institut Lavoisier-125(Ti): Degradation pathway and mechanism studies

2021 ◽  
Vol 588 ◽  
pp. 122-137
Author(s):  
Xiaodong Zhang ◽  
Jinfeng Chen ◽  
Shuntong Jiang ◽  
Xialu Zhang ◽  
Fukun Bi ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Degradation ◽  
Degradation Pathway ◽  
Gaseous Toluene ◽  
Rutile Titanium Dioxide

scholarly journals Photocatalytic Degradation of Deoxynivalenol Using Cerium Doped Titanium Dioxide under Ultraviolet Light Irradiation

Toxins ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 481
Author(s):  
Pengzhen He ◽  
Zhiyong Zhao ◽  
Yanglan Tan ◽  
Hengchao E ◽  
Minghui Zuo ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Degradation ◽  
Ultraviolet Light ◽  
Degradation Mechanism ◽  
Sol Gel ◽  
Degradation Pathway ◽  
Pure Tio2 ◽  
Light Irradiation ◽  
Ultraviolet Light Irradiation ◽  
Doped Titanium Dioxide

Deoxynivalenol (DON) is a major mycotoxin with high toxicity that often contaminates grains, foods and feeds. The traditional approaches for DON removal are difficult to meet industry and agriculture demands due to the high stability of the DON molecule. Therefore, there is an urgent need to develop green and effective strategies for DON degradation. In this study, a batch of photocatalytic nanomaterials of cerium (Ce) doped titanium dioxide (TiO2) were successfully prepared by sol-gel method. The catalysts were systematically characterized by XRD, HRTEM, FT-IR, UV-Vis and XPS. The catalyst 0.5Ce-TiO2 showed superior photocatalytic activity for DON degradation in aqueous solution under ultraviolet light irradiation, better than that of traditional photocatalyst pure TiO2, and 96% DON with initial concentration of 5.0 mg/L could be degraded in 4 h. In addition, the two possible degradation intermediate products C5H8O3 and C17H18O6 were identified, the photocatalytic degradation mechanism and degradation pathway were studied. The results indicate that Ce doped TiO2 photocatalyst can be used to reduce DON effectively.

Potassium and iodide codoped mesoporous titanium dioxide for enhancing photocatalytic degradation of phenolic compounds

2021 ◽  
Vol 767 ◽  
pp. 138367
Author(s):  
Hengjun Gai ◽  
Haozhong Wang ◽  
Lei Liu ◽  
Bingxiao Feng ◽  
Meng Xiao ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Phenolic Compounds ◽  
Photocatalytic Degradation ◽  
Mesoporous Titanium Dioxide
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