scholarly journals Solvent effects on photodegradation of CI Reactive Orange 16 by simulated solar light

2008 ◽  
Vol 62 (5) ◽  
pp. 275-281 ◽  
Author(s):  
Dusan Mijin ◽  
Dragana Zlatic ◽  
Gordana Uscumlic ◽  
Petar Jovancic

Organic solvents may appear in wastewaters and other industrial waste streams containing dyes, therefore, their photodegradation catalyzed by TiO2 should be investigated. Solvent effect on photodegradation of CI Reactive Orange 16 has been studied using simulated solar light and P-25 TiO2. Methyl, ethyl and isopropyl alcohol as well as acetone were used as solvents. Photodegradation reaction was faster in methyl than in ethyl alcohol while in water was the slowest. RO16 photodegradation efficiency and reaction rate decreased in the presence of small concentration of ethanol. Higher photodegradation efficiency was observed for higher ethanol concentration. For acetone, photodegradation decreased as concentration of acetone increased. It seems that protic solvents at higher concentrations promote reaction, while at low concentrations slow down reaction. Aprotic solvents slow down reaction.

2007 ◽  
Vol 13 (4) ◽  
pp. 179-185 ◽  
Author(s):  
Dusan Mijin ◽  
Marina Radulovic ◽  
Dragana Zlatic ◽  
Petar Jovancic

The photodegradation of C.I. Reactive Orange 16 (RO16), commonly used as a textile dye, was investigated using TiO2 as a catalyst and the sun lamp. The experiments showed that TiO2 and simulated solar light are necessary for the effective photodegradation, although a low degradation/adsorption was observed when only the simulated solar light or TiO2 was used. The effect of some parameters such as the initial concentration of the catalyst, the initial dye concentration, the initial Na2CO2 and NaCl concentrations, pH, and the presence of H2O2 on photodegradation of RO16 was examined. The photodegradation efficiency was highest at the catalyst concentration of 2.0 g/l. The degradation was faster in the acidic than in alkaline pH range. High adsorption of the dye was observed at low pH, while at high pH almost no adsorption was detected. A lower concentration of Na2CO2 decreased the photodegradation of RO16, while a higher concentration increased the photodegradation. The presence of NaCI led to the inhibition of the photodegradation process. The low concentration of H2P2 increased the RO16 photodegradation efficiency, while at higher concentration of H2O2 inhibition was observed.


2019 ◽  
Vol 669 ◽  
pp. 194-204 ◽  
Author(s):  
Jiaxin Lv ◽  
Xuemin Liu ◽  
Peicong Li ◽  
Wei Jin ◽  
Jiang Xu ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (51) ◽  
pp. 32120-32125 ◽  
Author(s):  
Lirong Huang ◽  
Yinghao Yu ◽  
Chao Fu ◽  
Haiyang Guo ◽  
Xuehui Li

The photodegradation efficiency of imidazolium ILs reach 95% with DCQ-TiO2/SiO2 as the photocatalyst under simulated solar light.


Author(s):  
Manuel Peñas-Garzón ◽  
Wael H.M. Abdelraheem ◽  
Carolina Belver ◽  
Juan J. Rodriguez ◽  
Jorge Bedia ◽  
...  

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 76
Author(s):  
Thanh-Lieu Thi Le ◽  
Lam Tan Nguyen ◽  
Hoai-Hue Nguyen ◽  
Nguyen Van Nghia ◽  
Nguyen Minh Vuong ◽  
...  

Nanostructures of titanium nitride (TiN) have recently been considered as a new class of plasmonic materials that have been utilized in many solar energy applications. This work presents the synthesis of a novel nanostructure of TiN that has a nanodonut shape from natural ilmenite ore using a low-cost and bulk method. The TiN nanodonuts exhibit strong and spectrally broad localized surface plasmon resonance absorption in the visible region centered at 560 nm, which is well suited for thermoplasmonic applications as a nanoscale heat source. The heat generation is investigated by water evaporation experiments under simulated solar light, demonstrating excellent solar light harvesting performance of the nanodonut structure.


Author(s):  
Shuang-Yang Zhao ◽  
Cheng-Xin Chen ◽  
Jie Ding ◽  
Shan-Shan Yang ◽  
Ya-Ni Zang ◽  
...  

2021 ◽  
pp. 100726
Author(s):  
F. Ruscasso ◽  
I. Cavello ◽  
M. Butler ◽  
E. Lopez Loveira ◽  
G. Curutchet ◽  
...  

2004 ◽  
Vol 43 (24) ◽  
pp. 7865-7869 ◽  
Author(s):  
S. W. Won ◽  
S. B. Choi ◽  
B. W. Chung ◽  
D. Park ◽  
J. M. Park ◽  
...  

2017 ◽  
Vol 135 ◽  
pp. 547-553 ◽  
Author(s):  
Zhihui Xu ◽  
Hongmei Jiang ◽  
Yaqun Yu ◽  
Jiangyan Xu ◽  
Jianru Liang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document