A Facile Method for the Synthesis of a MoS₂/g‐C₃N₄ Photocatalyst

Abstract

A MoS2/g‐C3N4 composite was synthesized by a significantly simple method using Na2MoO4 and thiourea as precursors, without the need for a hydrothermal or an ultrasound step. The photocatalytic activity of the synthesized material was evaluated by the degradation of rhodamine B (RhB) in aqueous solution under blue light. The composites with low content of MoS2 performed better than pure g‐C3N4. Using a low‐power light‐emitting diode light source, an improvement of two orders of magnitude in the photochemical space‐time yield was achieved, proving enhanced energy efficiency and productivity compared to earlier studies. The degradation pathway of organic pollutants was confirmed by the effects of selective scavengers.

Fe2O3/TiO2/Activated Carbon Nanocomposite with Synergistic Effect of Adsorption and Photocatalysis

“…However, TiO 2 application is limited by relatively large band gap energy and low adsorption ability which lead to a very low photocatalytic activity specially under visible light irradiation [8]. Many attempts including doping with metal ions have been made to decrease the band gap energy of semiconductors and increase the visible light utilization [9]. TiO 2 modification with various metals, e.g., Fe, Cr, Sn, Pt, and V, is of great interest.…”

Facile fabrication of embedded g-C3N4/MoS2 nano-adsorbent for the removal of persistent rhodamine B contaminant in aqueous solution

“…After cooling, the black powder MoS 2 was collected. 32 2.2.2 Synthesis of the g-C 3 N 4 /MoS 2 composite. g-C 3 N 4 / MoS 2 (1 : 1 wt%, CNM) was prepared by an intermixingcalcination technique.…”

Evolution of the Electronic Properties and Photocatalytic Activity of z-Type g-C3N4@MoS2 Heterostructures Prepared by a One-Step Calcination Method

“…Researchers have done many efforts to improve the efficiency of the g-C 3 N 4 photocatalyst, where the construction of g-C 3 N 4 heterojunctions has been regarded as one of the most efficient tools to improve the photocatalytical activities, as the heterojunction photocatalysts can not only increase the active sites of the catalyst but also act as the medium of electrons or holes to promote the separation of photogenerated carriers. − Therefore, g-C 3 N 4 coated with MoS 2 composites have been widely used in photocatalytic hydrogen production. − For example, Zhou et al and Jin et al . have obtained photocatalytic hydrogen rates of 17.18 and 2.99 μmol·g –1 ·h –1 with calcining melamine and urea as precursors at 500 °C, respectively.…”