Enhanced photocatalytic degradation of ciprofloxacin by black Ti3+/N-TiO2 under visible LED light irradiation: Kinetic, energy consumption, degradation pathway, and toxicity assessment

2020 ◽  
Vol 137 ◽  
pp. 261-272 ◽  
Author(s):  
Mansour Sarafraz ◽  
Morteza Sadeghi ◽  
Ahmadreza Yazdanbakhsh ◽  
Mostafa M. Amini ◽  
Mohsen Sadani ◽  
...  
2017 ◽  
Vol 92 ◽  
pp. 108-115 ◽  
Author(s):  
Kezhen Qi ◽  
Sreejith Karthikeyan ◽  
Woolcheol Kim ◽  
Faisal Al Marzouqi ◽  
Ibrahim Said Al-Khusaibi ◽  
...  

2020 ◽  
Vol 383 ◽  
pp. 123148 ◽  
Author(s):  
Xin Zhong ◽  
Kai-Xin Zhang ◽  
Di Wu ◽  
Xiao-Yu Ye ◽  
Wei Huang ◽  
...  

Toxins ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 481
Author(s):  
Pengzhen He ◽  
Zhiyong Zhao ◽  
Yanglan Tan ◽  
Hengchao E ◽  
Minghui Zuo ◽  
...  

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.


2013 ◽  
Vol 726-731 ◽  
pp. 2372-2375
Author(s):  
Dong Dong Zhang ◽  
Rong Liang Qiu ◽  
Shi Zhong Wang

Under visible light irradiation, the photocatalytic degradation of Br-THMs was successfully achieved. It suggested that Br-THMs were de-bromized in a stepwise manner. The more bromine substituted in Br-THMs, the more easily it can be degraded, due to C-Br bond is easier destroyed than C-Cl. A proposed degradation pathway through a series of free radical reactions was also discussed.


2019 ◽  
Vol 279 ◽  
pp. 232-240 ◽  
Author(s):  
Layegh Pirinejad ◽  
Afshin Maleki ◽  
Behzad Shahmoradi ◽  
Hiua Daraei ◽  
Jae-Kyu Yang ◽  
...  

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