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Preparation of the TiO2photocatalyst using pressurized ammonia

100%

Wawrzyniak B. , Janus M. , Grzmil B. , Morawski A.

Polish Journal of Chemical Technology

2007

tom 9

nr 1

51-56

The industrial hydrated amorphous titanium dioxide (TiO2ċ xH2O) was modified by treatment inside a chemical reactor under elevated pressure at low temperatures for 4 hours in an ammonia atmosphere. On the basis of the FTIR/DRS analysis the presence of nitrogen was confirmed. The XRD patterns of all of the catalysts exhibit mainly the diffraction lines of anatase phases. The photocatalytic activity of the modified photocatalysts was determined and compared to TiO2-P25 (Degussa, Germany). The high rate of phenol and dye degradation was obtained for the catalysts modified at 180°/15atm. TiO2-P25 showed similar activity in phenol decomposition like TiO2-15bar, whereas it was more active in dye decomposition.

Textile azo dye decolorization and detoxification using bacteria isolated from textile effluents

75%

Karnwal A.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

2019

tom 100

nr 4

Optimization of culture conditions for improved green biodecolorization of methylene blue by Rhodococcus pyridinivorans strain UCC 0003

63%

Maniyam M. N. , Hari M.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

2021

tom 102

nr 2

Functional and transcriptomic characterization of a dye-decolorizing fungus from Taxus rhizosphere

63%

Hao D. C. , Song S. M. , Cheng Y. , Qin Z. Q. , Ge G. B. , An B. L. , Xiao P. G.

Polish Journal of Microbiology

2018

tom 67

nr 4

We isolated three laccase-producing fungus strains from Taxus rhizosphere. Myrotheium verrucaria strain DJTU-sh7 had the highest laccase activity of 216.2 U/ml, which was increased to above 300 U/ml after optimization. DJTU-sh7 had the best decolorizing effect for three classes of reactive dyes. The DJTU-sh7-containing fungal consortium displayed the robust decolorizing ability. Both color removal efficiency and chemical oxygen demand were increased in the consortium mediated biotransformation. Transcriptome changes of M. verrucaria elicited by azo dye and phenolic were quantified by the high throughput transcriptome sequencing, and the activities of the selected oxidases and reductases were determined. The possible involvement of oxidases and reductases, especially laccase, aryl alcohol oxidase, and ferric reductase in the biotransformation of dye and phenolic compounds was revealed at both transcriptomic and phenotypic levels. Revealing the transcriptomic mechanisms of fungi in dealing with organic pollutants facilitates the fine-tuned manipulation of strains in developing novel bioremediation and biodegradation strategies.

Preparation of the TiO2 photocatalyst using pressurized ammonia

63%

Wawrzyniak B. , Janus M. , Grzmil B. , Morawski A. W.

Polish Journal of Chemical Technology

2007

tom Vol. 9, nr 1

51-56

The industrial hydrated amorphous titanium dioxide (TiO2 ź xH2O) was modified by treatment inside a chemical reactor under elevated pressure at low temperatures for 4 hours in an ammonia atmosphere. On the basis of the FTIR/DRS analysis the presence of nitrogen was confirmed. The XRD patterns of all of the catalysts exhibit mainly the diffraction lines of anatase phases. The photocatalytic activity of the modified photocatalysts was determined and compared to TiO2-P25 (Degussa, Germany). The high rate of phenol and dye degradation was obtained for the catalysts modified at 180°/5atm. TiO2-P25 showed similar activity in phenol decomposition like TiO2-15bar, whereas it was more active in dye decomposition.