Role of CuCo2S4 in Z-scheme MoSe2/BiVO4 composite for efficient photocatalytic reduction of heavy metals
Source abstract
Abstract
Abstract The unique CuCo2S4 modified Z-scheme MoSe2/BiVO4 hybrid composites were prepared through hydrothermal method for efficient removal of heavy metals under visible light. The prepared samples showed remarkable photocatalytic properties for efficient removal of heavy metals. SEM, XRD, EDX and BET were used to determine the flower and needle like morphology, structure and elemental composition, and surface area. Whereas UV–Vis absorption and PL emission spectroscopy were found to be useful to observe the optical properties of samples. The monoclinic phase was observed and the crystallite size of the prepared photocatalyst calculated to be in the range of 15–25 nm. The band gap energy was found to be decreased due to incorporation of composite materials. This decrease in band gap could facilitate to absorb more energy in the visible range. The PL results showed that the addition of CuCo2S4 has played a significant role to inhibit the recombination of electrons/holes pair's during the photocatalysis. It was found that composite sample C/MBV-1 exhibited the 40 times higher efficiency when compared to pure sample. This outstanding photocatalytic performance of composite sample could be attributed to unique morphology, enriched absorption of visible part, large surface area and inhibited the recombination of charge-carriers to synergistic effect of CuCo2S4 and MoSe2/BiVO4.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
Show source-provided references
1. PVP capped silver nanocubes assisted removal of glyphosate from water—a photoluminescence study10.1016/j.jhazmat.2017.06.014 ↗
2. Plasmonic resonance excited dual Z-scheme BiVO 4/Ag/Cu 2 O nanocomposite: synthesis and mechanism for enhanced photocatalytic performance in recalcitrant antibiotic degradation
3. Global water pollution and human health10.1146/annurev-environ-100809-125342 ↗
4. Seiler · 1988
5. Adsorbents for the removal of arsenic, cadmium, and lead from contaminated waters10.1016/j.jhazmat.2009.05.103 ↗
6. Biosorbents for heavy metals removal and their future10.1016/j.biotechadv.2008.11.002 ↗
7. Adsorption of transition metal ions from aqueous solutions onto a novel silica gel matrix inorganic–organic composite material10.1016/j.jhazmat.2009.08.143 ↗
8. Edzwald · 2011
9. A new application of nanocrystal In2S3 in efficient degradation of organic pollutants under visible light irradiation10.1021/jp809028y ↗
10. Organic salt induced electrospinning gradient effect: achievement of BiVO4 nanotubes with promoted photocatalytic performance10.1016/j.apcatb.2017.02.058 ↗
11. Bed flow photoreactor experiments to assess the photocatalytic nitrogen oxides abatement under simulated atmospheric conditions10.1016/j.apcatb.2018.03.010 ↗
12. TiO2 nanoparticles supported on PMMA nanofibers for photocatalytic degradation of methyl orange10.1016/j.jcis.2017.08.076 ↗
13. Cu2O/TiO2 heterostructure nanotube arrays prepared by an electrodeposition method exhibiting enhanced photocatalytic activity for CO2 reduction to methanol10.1016/j.catcom.2013.11.011 ↗
14. Increased photocatalytic activity of Zn (II)/Cu (II) oxides and sulfides by coupling and supporting them onto clinoptilolite nanoparticles in the degradation of benzophenone aqueous solution10.1016/j.jhazmat.2016.05.006 ↗
15. Enhanced photocatalytic performance of visible-light active graphene-WO3 nanostructures for hydrogen production10.1016/j.mssp.2018.05.006 ↗
16. The role of Sn in enhancing the visible-light photocatalytic activity of hollow hierarchical microspheres of the Bi/BiOBr heterojunction10.1039/C5CP00184F ↗
17. Mo-doped BiVO4 and graphene nanocomposites with enhanced photoelectrochemical performance for aptasensing of streptomycin10.1016/j.carbon.2017.04.079 ↗
18. Mo-doped BiVO4 nanotextured pillars as efficient photoanodes for solar water splitting10.1016/j.jallcom.2017.07.260 ↗
19. Synthesis of BiVO4/P25 composites for the photocatalytic degradation of ethylene under visible light10.1016/j.cej.2016.11.164 ↗
20. Fabrication of Ni-doped BiVO4 semiconductors with enhanced visible-light photocatalytic performances for wastewater treatment10.1016/j.apsusc.2017.04.056 ↗
21. Preparation and characterization of Mo doped in BiVO4 with enhanced photocatalytic properties10.3390/ma10080976 ↗
22. Hydrothermal synthesis of phosphate-doped BiVO4 with exposed (010) facets and enhanced sunlight-driven photocatalytic properties10.1016/j.matlet.2016.01.146 ↗
23. Construction of pn heterojunction β-Bi2O3/BiVO4 nanocomposite with improved photoinduced charge transfer property and enhanced activity in degradation of ortho-dichlorobenzene10.1016/j.apcatb.2017.07.052 ↗
24. Double-diffusion-based synthesis of BiVO 4 mesoporous single crystals with enhanced photocatalytic activity for oxygen evolution10.1039/C6CC02737G ↗
25. Enhanced surface area, high Zn interstitial defects and band gap reduction in N-doped ZnO nanosheets coupled with BiVO4 leads to improved photocatalytic performance10.1016/j.apsusc.2017.03.189 ↗
26. Carbon nanodots and rare metals (RM = La, Gd, Er) doped tungsten oxide nanostructures for photocatalytic dyes degradation and hydrogen production10.1016/j.seppur.2018.07.029 ↗
27. Synthesized MoSe2/TiO2 heterogeneous structure as the promising photocatalytic material: studies from theory to experiment10.1063/1.4974911 ↗
28. Construction of network-like and flower-like 2H-MoSe2 nanostructures coupled with porous g-C3N4 for noble-metal-free photocatalytic H2 evolution under visible light10.1016/j.apcatb.2018.03.102 ↗
29. TiO2: Si nanotube/1T-MoSe2 nanosheet hybrids with highly efficient hydrogen evolution catalytic activity10.1016/j.jcis.2018.03.068 ↗
30. Layered MoSe2/Bi2WO6 composite with PN heterojunctions as a promising visible-light induced photocatalyst10.1016/j.apsusc.2018.03.072 ↗
31. Two-step hydrothermal synthesis of peanut-shaped molybdenum diselenide/bismuth vanadate (MoSe2/BiVO4) with enhanced visible-light photocatalytic activity for the degradation of glyphosate10.1016/j.jcis.2018.07.142 ↗
32. Metal sulphide semiconductors for photocatalytic hydrogen production10.1039/c3cy00018d ↗
33. Removal of acetylsalicylate and methyl-theobromine from aqueous environment using nano-photocatalyst WO3 -TiO2@g-C3 N4 composite10.1016/j.jhazmat.2018.09.055 ↗
34. Enhancement of photocatalytic H2 evolution on CdS by loading MoS2 as cocatalyst under visible light irradiation10.1021/ja8007825 ↗
35. Synthesis of nanostructured based WO3 materials for photocatalytic applications10.1007/s10904-017-0714-6 ↗
36. Efficient hydrogen/oxygen evolution and photocatalytic dye degradation and reduction of aqueous Cr (VI) by surfactant free hydrophilic Cu 2 ZnSnS 4 nanoparticles10.1039/C4TA06551D ↗
37. Photocatalytic hydrogen evolution from CdS–ZnO–CdO systems under visible light irradiation: effect of thermal treatment and presence of Pt and Ru cocatalysts10.1016/j.ijhydene.2008.05.048 ↗
38. Role of MoSe2 on nanostructures WO3-CNT performance for photocatalytic hydrogen evolution10.1016/j.ceramint.2018.01.081 ↗
39. Effects of surface oxide films on hydrogen permeation and susceptibility to embrittlement of X80 steel under hydrogen atmosphere10.1016/j.ijhydene.2017.12.170 ↗
40. Morphology tailored synthesis of C-WO3 nanostructures and its photocatalytic application10.1007/s10904-017-0720-8 ↗
41. A new synthesis and adsorption mechanism of ZrO2 based metal-organic frames for efficient removal of mercury ions from aqueous solution10.1016/j.ceramint.2019.04.246 ↗
42. One-pot hydrothermal synthesis of CuCo2S4/RGO nanocomposites for visible-light photocatalytic applications10.1016/j.jpcs.2018.08.011 ↗
43. Synthesis of lignosulfonate-assisted flower-like titanate nanostructures and their excellent performance for heavy metal removal10.1016/j.ceramint.2016.02.096 ↗