One‐Pot Hydrothermal Synthesis of Visible‐Light‐Responsive MoS₂/g‐CNO Heterostructures for Organic‐Pollutant Degradation

Abstract

MoS2/g‐CNO (g‐CNO = oxidized graphitic carbon nitride) heterostructures were synthesized by a one‐step low‐temperature hydrothermal route. The hydrolysis and oxidation reactions during the hydrothermal synthesis provide a fivefold increase in the surface area of the carbon nitride matrix. The heterostructure formation between MoS2 and the g‐CNO matrix induced reduced recombination effects, and 1 wt.‐% MoS2/g‐CNO composites showed the highest photocatalytic activity towards the degradation of organic pollutants under visible‐light irradiation. Moreover, owing to the presence of groups with negative inductive effects in g‐CNO and g‐CNO‐based composites, the photocatalytic activities were higher than that of bare g‐C3N4. Recyclability studies on the synthesized catalysts indicated no loss of efficiency after four cycles. Thus, these MoS2/g‐CNO heterostructures are promising photocatalysts for the degradation of organic pollutants.

Conductive Regenerated Cellulose Fibers by Electroless Plating

“…Compared to UCF (spectrum "a"), the spectra of coated fibers presented changes, particularly peaks between 1200 and 800 cm −1 , and bands between 3000 and 2800 cm −1 , indicated by arrows. For the 15 and 45 min immersion times, a peak appeared around 1060 cm −1 which can probably be ascribed to the vibration of the Sn-OH bond [14]. This peak disappeared for the 90 min immersion time, which indicates that no more free Sn-Pd molecules were present over the surface of the fiber, and copper is present at all the activated sites.…”

Modulating Electrochemical Performance of Interfacially Polymerized, MoS2 Decorated Polyaniline Composites for Electrochemical Capacitor Applications

“…The BET surface area of MoS 2 , PANI, and composite is tabulated in Table , and the N 2 adsorption–desorption isotherms are plotted in Figure S6. The results show type II isotherms with H3 hysteresis . The hysteresis indicated the presence of slit-like pores mostly due to the loose stacking of the sheets and the formation of gaps between the sheets .…”

“…The results show type II isotherms with H3 hysteresis. 47 The hysteresis indicated the presence of slit-like pores mostly due to the loose stacking of the sheets and the formation of gaps between the sheets. 48 The surface area of the composite has increased to 18 m 2 /g compared to 2 m 2 /g for the MoS 2 .…”

Molybdenum Disulfide-Based Nanomaterials for Visible-Light-Induced Photocatalysis

“…Joy et al achieved 85% degradation of methylene blue within 30 min and up to 95% degradation of para-nitrophenol after 5 h under irradiation of light using a heterostructure comprising MoS 2 and g-CNO (oxidized graphitic carbon nitride) as a photocatalyst. 71 Wang et al successfully prepared multilayered MoS 2 -coated TiO 2 hollow spheres using a hydrothermal method. TiO 2 /MoS 2 exhibited high photocatalytic activities and managed to degrade about 78% of phenol after 150 min.…”

“…The synthesized materials exhibited a narrow band gap energy of 1.55 eV, which enables it to utilize visible light efficiently, and showed complete degradation within 20 min. Joy et al achieved 85% degradation of methylene blue within 30 min and up to 95% degradation of para-nitrophenol after 5 h under irradiation of light using a heterostructure comprising MoS 2 and g-CNO (oxidized graphitic carbon nitride) as a photocatalyst . Wang et al successfully prepared multilayered MoS 2 -coated TiO 2 hollow spheres using a hydrothermal method.…”