Photocatalytic and toxicity evaluation of local dyeing wastewater by aluminium/boron doped WO3 nanoparticles

Nitrogen-Doped WO3 Nanoparticles as Electrode Materials in All-in-One Supercapacitor Devices

“…The optical band gap was evaluated from the UV–vis absorption spectra (see inset of Figure ) using Tauc’s equation and considering that WO 3 is a semiconductor with an indirect band gap . The (α h ν) 1/2 vs photon energy plots and the obtained WO 3 band gap energy values are illustrated in Figure .…”

Column adsorption of biological oxygen demand, chemical oxygen demand and total organic carbon from wastewater by magnetite nanoparticles-zeolite A composite

“…Owing to the increasing demand for environmental protection, several conventional treatment methods have been reported by researchers to effectively remove pollutants from wastewater. For instance, ion exchange [ 10 ], reverse osmosis [ 11 ], nanofiltration [ 12 ], biological technique [ 13 ], coagulation/flocculation [ 14 ], reverse osmosis [ 15 ], chemical precipitation [ 16 ], photocatalysis [ 17 , 18 ], membrane processes [ 19 ], advanced oxidation processes [ 8 ] and adsorption process [ 20 ]. However, some of the highlighted methods have their limitations that are either require frequent maintenance, high cost of operation, longer degradation time, generation of sludge in large amounts and the use of expensive chemicals [ 21 , 22 ].…”

Construction of yolk‐shell structural polydopamine@WO3 micro/nanospheres for enhanced photocatalytic degradation

“…However, the low conduction band edge (∼0.8 eV vs NHE (Normal Hydrogen Electrode)), rapid carrier recombination, [19] low electron transport capacity and limited light response range [20,21] of WO 3 make its photocatalytic ability be hindered. To solve the above problems, several strategies have been proposed, such as constructing heterojunctions with other types of semiconductors, [22] or metal/nonmetal doping [23] . Organic conductive polymers with π‐electron conjugated structures are potential candidates to enhance photocatalytic performance of metal oxide semiconductor and have also drawn attention.…”

“…To solve the above problems, several strategies have been proposed, such as constructing heterojunctions with other types of semiconductors, [22] or metal/nonmetal doping. [23] Organic conductive polymers with π-electron conjugated structures are potential candidates to enhance photocatalytic performance of metal oxide semiconductor and have also drawn attention. For example, Oxygen-rich carbon-nitride quantum dot conjugated polymers modify WO 3 surfaces by chemisorption, this process facilitates charge separation and hole transfer.…”