Adsorption and photocatalytic study of dye degradation over the g‐C3N4/W18O49 nanocomposite. (1st April 2018)

• Record Type: Journal Article
• Authors: Xu, Le; Gu, Danxia; Chang, Xueting; Chai, Linge; Li, Zhao; Jin, Xiaokun; Sun, Shibin
• Is Part Of: Micro & nano letters. Volume 13:Number 4(2018)
• Page Start: 541
• Page End: 545
• Publication Date: 2018-04-01
• Subjects: carbon compounds -- tungsten compounds -- catalysis -- photodissociation -- nanocomposites -- nanorods -- nanofabrication -- liquid phase deposition -- X‐ray diffraction -- X‐ray photoelectron spectra -- transmission electron microscopy -- adsorption -- dyes; photocatalytic degradation -- heterogeneous nanocomposite -- nanorod coupling -- graphitic carbon nitride sheet -- solvothermal method -- X‐ray diffraction -- X‐ray photoelectron spectra -- transmission electron microscopy -- methylene blue dye -- adsorption -- time 0.5 h -- C3N4‐W18O49; Nanotechnology -- Periodicals; Nanostructures -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1049/mnl.2017.0719
• Languages: English
• ISSNs: 1750-0443

Abstract

Abstract : A heterogeneous nanocomposite (NC) of g‐C3 N4 /W18 O49 based on the coupling of W18 O49 nanorods (NRs) with the graphitic carbon nitride (g‐C3 N4 ) sheets has been synthesised via a solvothermal method. The as‐synthesised products were characterised by X‐ray diffraction, X‐ray photoelectron spectrometry, and transmission electron microscopy. The g‐C3 N4 /W18 O49 NC exhibited very strong adsorption ability towards the methylene blue (MB) dye and demonstrated a high removal efficiency of 99.14% after 0.5 h equilibration in dark. Compared to the g‐C3 N4 sheets and W18 O49 NRs, the g‐C3 N4 /W18 O49 NC exhibited higher removal efficiencies towards both the MB and methyl orange (MO) dyes via a combination of adsorption and degradation. The photocatalytic process of the g‐C3 N4 /W18 O49 NC followed the Z‐scheme photocatalytic mechanism. This work provides an efficient strategy for the synthesis of g‐C3 N4 ‐based heterogeneous photocatalysts.