Thiourea assisted one-pot easy synthesis of CdS/rGO composite by the wet chemical method: Structural, optical, and photocatalytic properties
Source abstract
Abstract
Abstract We report on the synthesis of CdS/reduced graphene oxide (rGO) composite by a wet chemical method. Thiourea was used both as a sulfur source and as a reducing agent to convert graphene oxide to rGO. The structural and morphological confirmation for the reduction of graphene oxide and the formation of the CdS/rGO composite was demonstrated by X-ray diffractometry, Raman spectroscopy, Fourier transform infrared spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy analyses. Photoluminescence spectra of the composite exhibited a more efficient luminescence quenching in comparison with pure CdS nanoparticles. The composite demonstrated 99% photodegradation of methyl orange under UV irradiation, which is much superior than the photodegradation of methyl orange under similar conditions exhibited by CdS nanoparticles (72%).
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Quantum Dots Synthesis And Properties · 2D Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (58)
Show source-provided references
1. A green approach to the synthesis of graphene nanosheets10.1021/nn900227d ↗
2. Hydrothermal dehydration for the green reduction of exfoliated graphene oxide to graphene and demonstration of tunable optical limiting properties10.1021/cm9006603 ↗
3. Folded structured graphene paper for high performance electrode materials10.1002/adma.201104691 ↗
4. Processable aqueous dispersions of graphene nanosheets10.1038/nnano.2007.451 ↗
5. Carbon-based electronics10.1038/nnano.2007.300 ↗
6. Synthesis and photoelectrical properties of b-cyclodextrin functionalized graphene materials with high bio-recognition capability10.1016/j.cplett.2010.08.060 ↗
7. Transparent, conductive graphene electrodes for dye-sensitized solar cells10.1021/nl072838r ↗
8. Graphene-based composite materials10.1038/nature04969 ↗
9. Graphene-based electrochemical supercapacitors10.1007/s12039-008-0002-7 ↗
10. Enhanced acidity and pH-dependent surface charge characterization of successively oxidized graphite oxides10.1016/j.carbon.2005.08.005 ↗
11. Ultrathin graphite oxide–polyelectrolyte composites prepared by self-assembly: transition between conductive and non-conductive states10.1002/adma.19960080806 ↗
12. Comparing graphene–TiO2 nanowire and graphene–TiO2 nanoparticle composite photocatalysts10.1021/am300772t ↗
13. Semiconductor clusters, nanocrystals, and quantum dots10.1126/science.271.5251.933 ↗
14. Two-phase route to high quality ZnO quantum dots with high stability of dispersity, structure and optical properties10.1166/sam.2012.1406 ↗
15. Double-shelled nanocapsules of V2O5-based composites as high-performance anode and cathode materials for Li ion batteries10.1021/ja9053256 ↗
16. Synthesis and characterization of nearly monodisperse CdE (E=sulfur, selenium, tellurium) semiconductor nanocrystallites10.1021/ja00072a025 ↗
17. Tailoring anisotropic morphology at the nanoregime: surface bonding motif determines the morphology transformation of ZnO nanostructures10.1021/jp401170j ↗
18. Band gap engineering of crystal materials: band gap estimation of semiconductors via electronegativity10.1142/S1793604712600028 ↗
19. MoO2/reduced graphene oxide composite electrode with improved cycling performance and high capacitance for supercapacitors10.1166/jnan.2013.1112 ↗
20. CoO/graphene composite for high performance Li-ion battery anode10.1166/mat.2012.1025 ↗
21. Synthesis of Cu2O nanocrystals and Cu2O/graphene composite paper for lithium-ion battery anode materials10.1166/eef.2012.1006 ↗
22. MoO2 nanocrystals decorated reduced graphene oxide sheets as high capacity electrode for supercapacitor applications10.1166/jnan.2012.1092 ↗
23. Flexible composite electrodes upon aerogel derived graphene paper towards lithium-ion batteries10.1166/eef.2012.1012 ↗
24. Graphene–nanocrystalline metal sulphide composites produced by a one-pot reaction starting from graphite oxide10.1016/j.carbon.2009.03.055 ↗
25. A facile one-step method to produce graphene–CdS quantum dot nanocomposites as promising optoelectronic materials10.1002/adma.200901920 ↗
26. Solvothermal synthesis of CdS nanowires templated by polyethylene glycol10.1016/j.ceramint.2009.03.024 ↗
27. Photophysical properties of spherical aggregations of CdS nanocrystals capped with a chromophoric surface agent10.1039/c2dt30622k ↗
28. Hydrothermal synthesis of CdS nanoparticle-decorated TiO2 nanobelts for solar cell10.1166/jnn.2011.4963 ↗
29. CdS–ZnO composite nanorods: synthesis, characterization and application for photocatalytic degradation of 3,4-dihydroxy benzoic acid10.1016/j.apsusc.2008.05.268 ↗
30. Novel method of fabrication of polyaniline–CdS nanocomposites: structural, morphological and optoelectronic properties10.1016/j.ceramint.2012.01.056 ↗
31. Progress in graphene-based photoactive nanocomposites as a promising class of photocatalyst10.1039/c2nr31699d ↗
32. Preparation of graphitic oxide10.1021/ja01539a017 ↗
33. Room temperature in situ chemical synthesis of Fe3O4/graphene10.1016/j.ceramint.2012.05.014 ↗
34. Highly durable N-doped graphene/CdS nanocomposites with enhanced photocatalytic hydrogen evolution from water under visible light irradiation10.1021/jp2023617 ↗
35. Solvothermal synthesis and characterization of sandwich-like graphene/ZnO nanocomposites10.1016/j.apsusc.2009.11.034 ↗
36. Non-covalent functionalization of graphene sheets by sulfonated polyaniline10.1039/b821805f ↗
37. Facile synthesis of CdS nanoparticles photocatalyst with high performance10.1016/j.ceramint.2012.07.098 ↗
38. Graphene-wrapped TiO2 hollow structures with enhanced lithium storage capabilities10.1039/c1nr10162e ↗
39. Microwave-assisted synthesis of BiOBr/graphene nanocomposites and their enhanced photocatalytic activity10.1039/c2dt31088k ↗
40. ZnS–graphene nanocomposite: synthesis, characterization and optical properties10.1016/j.jssc.2012.02.048 ↗
41. Raman spectra of graphite oxide and functionalized graphene Sheets10.1021/nl071822y ↗
42. Optical properties of CdS nanoparticles and the energy transfer from CdS nanoparticles to Rhodamine 6G10.1016/j.cplett.2005.07.088 ↗
43. Flexible graphene films via the filtration of water-soluble noncovalent functionalized graphene sheets10.1021/ja800745y ↗
44. Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide10.1016/j.carbon.2007.02.034 ↗
45. CSA doped polyaniline/CdS organic–inorganic nanohybrid: physical and gas sensing properties10.1016/j.ceramint.2012.03.064 ↗
46. A low-temperature method to produce highly reduced graphene oxide10.1038/ncomms2555 ↗
47. Synthesis, characterization and photocatalytic application of bovine serum albumin capped cadmium sulphide nanoparticles
48. Blue photoluminescence from chemically derived graphene oxide10.1002/adma.200901996 ↗
49. Preparation and characterization of graphene/CdS nanocomposites10.1016/j.apsusc.2010.07.058 ↗
50. Fast interfacial charge separation in chemically hybridized CdS–PVK nanocomposites studied by photoluminescence and photoconductivity measurements10.1016/S0009-2614(00)01391-9 ↗
51. Cadmium (II) pyrrolidine dithiocarbamate complex as single source precursor for the preparation of CdS nanocrystals by microwave irradiation and conventional heating process10.1016/j.apsusc.2010.10.055 ↗
52. Water-dispersible magnetite-graphene-LDH composites for efficient arsenate removal10.1039/c1jm12678d ↗
53. C.D. Wanger, W.M. Riggs, L.E. Davis, J.F. Moulder, G.E.Muilenberg, Handbook of X-ray Photoelectron Spectroscopy, Perkin-Elmer Corp., Physical Electronics Division, Eden Prairie, Minnesota, USA, 1979, pp. 114.
54. Thermal behaviour of CdS nanoparticles investigated by high resolution photoelectron spectroscopy10.1002/(SICI)1521-396X(199905)173:1<253::AID-PSSA253>3.0.CO;2-W ↗
55. Growth of CdS nanocrystallites on graphene oxide Langmuir–Blodgett monolayers10.1088/0957-4484/23/32/325605 ↗
56. Graphene oxide as a photocatalytic material10.1063/1.3599453 ↗
57. Ultrafast graphene photodetector10.1038/nnano.2009.292 ↗
58. Reduced graphene oxide/CdS for efficiently photocatalystic degradation of methylene blue10.1016/j.jallcom.2012.02.058 ↗