Nanostructured zirconium tungstate and its bionanocomposite with chitosan: Wet peroxide photocatalytic degradation of dyes

Heterogeneous H2O2-based selective oxidations over zirconium tungstate α-ZrW2O8

“…In particular, Zr 2 W 3 O 13 •15H 2 O nanoparticles were used for the oxidation of benzyl alcohol 28 while Na 3 Zr 3 W 5 O 22 Cl was employed for the photocatalytic degradation of dyes. 31 To date, various methods have been reported for the synthesis of the phase-pure zirconium tungstate ZrW 2 O 8 , including heating and subsequent quenching of a mixture of WO 3 and ZrO 2 , 18,19,32,33 hydrothermal synthesis, [34][35][36][37] and the solgel procedure. [38][39][40] An approach to the synthesis of hierarchical mesoporous ZrW 2 O 8 has also been developed.…”

“…In particular, Zr 2 W 3 O 13 ·15H 2 O nanoparticles were used for the oxidation of benzyl alcohol 28 while Na 3 Zr 3 W 5 O 22 Cl was employed for the photocatalytic degradation of dyes. 31…”

Ampero-Photometric Method (Apm) for the Determination of Colored Solution Concentration Using a Light Dependent Resistor (Ldr)

“…Spectrophotometers are commonly used to determine concentrations of colored solutions [2−7], and follow-up decolorization when water was treated from pollutants such as Basic Orange, Methylene Blue, Methyl Orange, Eosin Yellowish [8], Ponceau 6R [9,10], cationic phenothiazine dye, anionic mono azo dye, cationic fluorescent dye [11], acid red 17 dye [12], Eosin Y [13], bromophenol dye [14], Reactive Blue-21, Reactive Red-141, Rhodamine-6G [15], methyl blue [16], and green dye [17]. Spectrophotometer works on the principle of measurement of absorption at a specified wavelength of the light by the solution.…”