Porous p-NiO/n-Nb2O5 nanocomposites prepared by an EISA route with enhanced photocatalytic activity in simultaneous Cr(VI) reduction and methyl orange decolorization under visible light irradiation

Synthesis and Structural Properties of Niobium Pentoxide Powders: A Comparative Study of the Growth Process

“…The interest in studying the Nb 2 O 5 is due to its remarkable physicochemical properties and structural isotropy suitable for a wide range of applications in the construction of gas sensing, electrochromics display and photoelectrodes, as well as in field-emission displays and microelectronics [1][2][3][4][5][6] . Studies were conducted in the past on the use of Nb 2 O 5 nanoparticles for environmental remediation in water through of photocatalytic processes.…”

Highly effective and stable Ag3PO4–WO3/MWCNTs photocatalysts for simultaneous Cr(VI) reduction and orange II degradation under visible light irradiation

“…The coexistence of heavy metal ion (e.g., Cr(VI), Hg(II), Pb(II)) and organic matter (e.g., azo dyes) in wastewater is a common phenomenon [1]. These pollutants are discharged together in industrial processes such as wood preserving, metal finishing, petroleum refining, leather tanning and finishing, paint and ink formulation, and manufacturing of automobile parts [2].…”

Photocatalytic remediation of ionic pollutant

“…Oxalic acid could increase the reduction rate of Cr(VI) by inhibiting the recombination of electron-hole pairs. Porous NiO/Nb 2 O 5 nanocomposites with different Ni/Nb molar ratio have been obtained via the evaporation-induced self-assembly (EISA) route using P123 copolymer as organic template [77]. The photocatalytic activities of the nanocomposites were investigated by reducing Cr(VI) as well as degrading MO.…”