Oxidative degradation of dinitro butyl phenol (DNBP) utilizing hydrogen peroxide and solar light over a Al2O3-supported Fe(III)-5-sulfosalicylic acid (ssal) catalyst

PHOTO-FENTON REACTION OF DYES WITH Fe(III)-TREATED HYDROXYAPATITES AS HETEROGENEOUS CATALYSTS IN WATER

“…[3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Photo-Fenton reaction is one of advanced oxidation processes, 19 which are essentially used for removal of natural organic matter from drinking water.…”

“…9 From a viewpoint of smoothing and recycling usage, or running cost in future water purification plants, a heterogeneous system must be superior to homogenous one. As heterogeneous catalysts, iron oxides (Fe 2 O 3 , FeOOH), 3,13 Fe(III)-immobilized zeolites, 4,11,12 Fe(III)-immobilized silica, 5,16 Fe(III)-immobilized clay, [6][7][8][9]14,17 Fe(III)-immobilized Al 2 O 3 , 10 Prussian blue colloids, 15 and tungstate salt 18 were employed so far.…”

In Situ Construction of Dye-Sensitized BiOCl/Rutile-TiO2 Nanorod Heterojunctions with Highly Enhanced Photocatalytic Activity for Treating Persistent Organic Pollutants

“…The BiOCl/R-TiO 2 heterojunctions exhibited enhanced photocatalytic degradation performance when compared with single R-TiO 2 nanorods and BiOCl, and complete degradation of RhB could be achieved within 80 min. Apart from RhB, the as-prepared samples were also used to photodegrade DNBP, one of the most important alkyl dinitro phenols, , under the same conditions to verify the universal applicability of the fabricated photocatalysts (Figure b). Obviously, the photocatalytic degradation of DNBP using the prepared catalysts displayed similar variation trends to that of RhB but with very different degradation efficiencies.…”

“…Organic dyes and polynitrophenols, typical biorefractory organic compounds, are among the most common ubiquitously stubborn pollutants in contaminated wastewater, − which have imposed a serious threat on ecosystems and cannot be effectively decomposed by traditional wastewater treatment techniques. Therefore, it is imperative to develop reliable, efficient, and cost-effective techniques for the elimination of organic dyes and polynitrophenols as refractory organic contaminants …”

Advanced Heterogeneous Fenton Treatment of Coalbed Methane-Produced Water Containing Fracturing Fluid

“…Figure 5, three spectral lines exhibited broad absorption peaks at 500 cm −1 to 600 cm −1 , which is the stretching vibration peak of the Al-O bond in the catalyst carrier γ-Al 2 O 3 . Compared with pure γ-Al 2 O 3 (Figure 5a), synthetic catalysts of Fe/γ-Al 2 O 3 and Fe-Co/γ-Al 2 O 3 exhibited evident absorption peaks at 3444 and 1557 cm −1 to 1410 cm −1 , which correspond to the stretching vibration peak and the bending vibration peak of the hydroxyl group, respectively [41][42][43][44]. Combined with the presence of the hydroxyl group deformation vibration at 890 cm −1 , the absorption peaks at these two positions corresponded to the hydroxyl group on the catalyst surface instead of bound water.…”