Hydrothermal synthesis of CdS sub-microspheres for photocatalytic degradation of pharmaceuticals
Source abstract
Abstract
Abstract Visible light active CdS were synthesised through a hydrothermal method followed by evaluation of their efficiency in the photodegradation of acetaminophen and levofloxacin. The microspheres were characterised by various physico-chemical techniques such as SEM, UV–Vis, XRD and XPS. The microspheres of about 0.5 µm size were observed to have lower band gap energy of about 2.26 eV. XPS analysis confirmed the formation of impurity-free CdS microspheres. Photocatalytic degradation studies using visible light from LEDs (455 nm) showed high degradation of the two drugs. Up to 85% of the acetaminophen and 70% of the levofloxacin were degraded in 240 min. CdS microspheres are promising visible light active photocatalyts for the degradation of pharmaceuticals such as acetaminophen and levofloxacin in water.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Quantum Dots Synthesis And Properties · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
Show source-provided references
1. A critical assessment of the photodegradation of pharmaceuticals in aquatic environments: defining our current understanding and identifying knowledge gaps10.1039/c3em00615h ↗
2. A comprehensive study on electrochemical and photocatalytic activity of SnO2-ZnO/clinoptilolite nanoparticles10.1016/j.molcata.2016.11.011 ↗
3. Immobilized TiO2-reduced graphene oxide nanocomposites on optical fibers as high performance photocatalysts for degradation of pharmaceuticals10.1016/j.cej.2016.04.024 ↗
4. Degradation of pharmaceuticals in wastewater using immobilized TiO2 photocatalysis under simulated solar irradiation10.1016/j.apcatb.2015.09.015 ↗
5. EPA, Drinking water contaminant candidate List 3 (2011).10.1016/S1359-6128(11)70308-1 ↗
6. Effect of the supported ZnO on clinoptilolite nano-particles in the photodecolorization of semi-real sample bromothymol blue aqueous solution10.1016/j.mssp.2014.10.006 ↗
7. Influence of methanol when used as a water-miscible carrier of pharmaceuticals in TiO2 photocatalytic degradation experiments10.1016/j.jece.2017.08.048 ↗
8. Heterogeneous photodecolorization of Eriochrome Black T using Ni/P zeolite catalyst10.1016/j.desal.2010.05.047 ↗
9. Sunlight assisted photodecolorization of crystal violet catalyzed by CdS nanoparticles embedded on zeolite A10.1016/j.desal.2011.08.050 ↗
10. Investigation of the photocatalytic activity of supported ZnO–TiO2 on clinoptilolite nano-particles towards photodegradation of wastewater-contained phenol10.1080/19443994.2014.922443 ↗
11. Hot-electron-mediated photochemical reactions: principles, recent advances, and challenges10.1002/adom.201700004 ↗
12. Controlled growth and photocatalytic properties of CdS nanocrystals implanted in layered metal hydroxide matrixes10.1021/jp054400q ↗
13. Homogeneously distributed CdS nanoparticles in nafion membranes: preparation, characterization, and photocatalytic properties10.1021/la051072c ↗
14. Synthesis of submicrometer-sized CdS hollow spheres in aqueous solutions of a triblock copolymer10.1021/la034994t ↗
15. Efficient utilization of photogenerated electrons and holes for photocatalytic selective organic syntheses in one reaction system using a narrow band gap CdS photocatalyst10.1039/C6GC00572A ↗
16. Highly sensitive photosensor based on in situ synthesized CdS nanowires10.1016/j.snb.2015.06.154 ↗
17. Synthesis, optical, structural, and electrical properties of single-crystalline CdS nanobelts10.1007/s00339-017-0923-4 ↗
18. Facile synthesis of three dimensional CdS nanoflowers with high photocatalytic performance10.1016/j.jallcom.2015.10.064 ↗
19. Preparation, characterization and photocatalytic activity of flowerlike cadmium sulfide nanostructure10.1016/j.seppur.2009.04.007 ↗
20. Synthesis and photocatalytic activity of hollow CdS microspheres10.1039/C6CY01896C ↗
21. Optical sensor based on a single CdS nanobelt10.3390/s140407332 ↗
22. Synthesis and characterizations of polycrystalline walnut-like CdS nanoparticle by solvothermal method with PVP as stabilizer10.1016/j.matchemphys.2008.03.020 ↗
23. Rapid synthesis of CdS nanowire mesh via a simplistic wet chemical route and its NO2 gas sensing properties10.1039/C7NJ04593J ↗
24. Influence of the solvent on the structure, morphology and performance for H2 evolution of CdS photocatalysts prepared by solvothermal method10.1016/j.apcatb.2016.10.073 ↗
25. Morphology-dependent photocatalytic H2-production activity of CdS10.1016/j.apcatb.2014.03.013 ↗
26. Synthesis of self-assembled CdS nanospheres and their photocatalytic activities by photodegradation of organic dye molecules10.1016/j.cej.2014.07.041 ↗
27. Performance improvement of perovskite solar cells by employing a CdSe quantum dot/PCBM composite as an electron transport layer10.1039/C7TA00203C ↗
28. A comparison between the efficiency of CdS nanoparticles/zeolite A and CdO/zeolite A as catalysts in photodecolorization of crystal violet10.1016/j.desal.2011.06.006 ↗
29. Synthesis of CdS nanoparticles with enhanced optical properties10.1016/j.matchar.2010.10.009 ↗
30. Spontaneous formation of wurzite-CdS/zinc blende-CdTe heterodimers through a partial anion exchange reaction10.1021/ja2078224 ↗
31. Modified Scherrer equation to estimate more accurately nano-crystallite size using XRD10.4236/wjnse.2012.23020 ↗
32. New understanding on the different photocatalytic activity of wurtzite and zinc-blende CdS10.1016/j.apcatb.2016.03.058 ↗
33. An article on optics of paint layers
34. New contributions to the optics of intensely light-scattering materials. Part I10.1364/JOSA.38.000448 ↗
35. 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 ↗
36. Increased photocatalytic activity of NiO and ZnO in photodegradation of a model drug aqueous solution: effect of coupling, supporting, particles size and calcination temperature10.1016/j.jhazmat.2016.09.056 ↗
37. Enhanced photocatalytic activity of nickel oxide supported on clinoptilolite nanoparticles for the photodegradation of aqueous cephalexin10.1016/j.mssp.2015.03.042 ↗
38. Klabunde · 2001 · vol. 1035
39. Cauliflower-like CdS microspheres composed of nanocrystals and their physicochemical properties10.1021/la1032288 ↗
40. CdS microspheres composed of nanocrystals and their photocatalytic activity10.1166/jnn.2011.3760 ↗
41. Highly stable CdS-modified short TiO2 nanotube array electrode for efficient visible-light hydrogen generation10.1016/j.ijhydene.2010.09.089 ↗
42. In situ deposition of Sn-doped CdS thin films by chemical bath deposition and their characterization10.1088/0022-3727/39/22/006 ↗
43. An X-ray photoelectron spectroscopy investigation of O impurity chemistry in CdS thin films grown by chemical bath deposition10.1063/1.364054 ↗
44. High-energy heavy-ion induced physical and surface-chemical modifications in polycrystalline cadmium sulfide thin films10.1007/s00339-008-4866-7 ↗
45. Effect of a nano-sized natural clinoptilolite modified by the hexadecyltrimethyl ammonium surfactant on cephalexin drug delivery10.1016/j.crci.2013.07.009 ↗
46. Enhanced activity of clinoptilolite-supported hybridized PbS–CdS semiconductors for the photocatalytic degradation of a mixture of tetracycline and cephalexin aqueous solution10.1016/j.molcata.2015.07.017 ↗