Facile synthesis of Cu3Se2/Cu2Se/Cu2O hollow microspheres by sacrificial template method at room temperature and excellent photodegradation activity
Source abstract
Abstract
Abstract Cu3Se2/Cu2Se/Cu2O hollow microspheres with Cu3Se2 as the main component have been synthesized successfully for the first time by a facile sacrificial template method at room temperature, using Cu2O microspheres as the template. The Cu3Se2/Cu2Se/Cu2O product was characterized and its formation mechanism was explored based on series of control experiments. UV–vis diffuse reflectance absorption spectrum and photoluminescence (PL) spectrum were measured to study optical properties of the Cu3Se2/Cu2Se/Cu2O hollow microspheres. The photocatalytic activities were assessed by photodegradations of three organic dye solutions in the presence of a drop of H2O2. The results show that the Cu3Se2/Cu2Se/Cu2O hollow microspheres possess high crystallinity and large ratio of hollow-sphere-diameter: wall-thickness, which can be formed at an optimal reaction condition via a dissolution-recrystallization regime. The Cu3Se2/Cu2Se/Cu2O catalyst exhibits excellent photodegradation activity to a high concentration of methyl blue solution.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · Copper-based nanomaterials and applications · Chalcogenide Semiconductor Thin Films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Cu2Se nanoparticles with tunable electronic properties due to a controlled solid-state phase transition driven by copper oxidation and cationic conduction10.1021/ja106254h ↗
2. Physical, optical and electrical properties of copper selenide (CuSe) thin films deposited by solution growth technique at room temperature10.1016/j.jallcom.2007.03.068 ↗
3. Chemical bath deposition of cubic copper (I) selenide and its room temperature transformation to the orthorhombic phase10.1016/S0040-6090(97)00021-7 ↗
4. Large-scale synthesis of long crystalline Cu2-xSe nanowire bundles by water-evaporation-induced self-assembly and their application in gas sensing10.1002/adfm.200801430 ↗
5. Template synthesis of Cu2-xSe nanoboxes and their gas sensing properties10.1039/c2ce06752h ↗
6. One-step room temperature rapid synthesis of Cu2Se nanostructures, phase transformation, and formation of p-Cu2Se/p-Cu3Se2 heterojunctions10.1039/C6CE00370B ↗
7. Chemical synthesis of p-type nanocrystalline copper selenide thin films for heterojunction solar cells10.1016/j.apsusc.2006.04.012 ↗
8. Thermoelectric properties of copper selenide with ordered selenium layer and disordered copper layer10.1016/j.nanoen.2012.02.010 ↗
9. Cu3Se2 nanostructure as a counter electrode for high efficiency quantum dot-sensitized solar cells10.1039/C6TC02309F ↗
10. Room temperature facile synthesis of Cu2Se hexagonal nanoplates array film and its high photodegradation activity to methyl blue with the assistance of H2O210.1016/j.matlet.2016.07.155 ↗
11. Synthesis and characterization of cuprous selenide nanocrystals at room temperature10.1016/j.cclet.2007.03.023 ↗
12. Synthesis and characterization of Cu2Se prepared by hydrothermal co-reduction10.1016/j.jallcom.2009.05.014 ↗
13. Conversion of SILAR deposited Cu3Se2 thin films to Cu2-xSe by annealing10.1016/j.matlet.2015.12.030 ↗
14. A novel solid–liquid route for the preparation of Cu3Se2 and Ag2Se nanocrystals10.1016/S1387-7003(02)00673-1 ↗
15. Fabrication and phase variation in annealed Cu3Se2 nanowire arrays10.1016/j.apsusc.2009.04.161 ↗
16. Microwave-enhanced synthesis of Cu3Se2 nanoplates and assembly of photovoltaic CdTe-Cu3Se2 Clusters10.1021/jp0702301 ↗
17. Synthesis and characterization of hexagonal CuSe nanotubes by templating against trigonal Se nanotubes10.1021/cg0604430 ↗
18. Conversion of Cu2O nanocrystals into hollow Cu2-xSe nanocages with the preservation of morphologies10.1039/B609848G ↗
19. Morphosynthesis of rhombododecahedral silver cages by self-assembly coupled with precursor crystal templating10.1002/anie.200461859 ↗
20. Templated photocatalytic synthesis of well-defined platinum hollow nanostructures with enhanced catalytic performance for methanol oxidation10.1021/nl201799x ↗
21. Modified Kirkendall effect for fabrication of magnetic nanotubes10.1039/b922134d ↗
22. Synthesis of hierarchically porous TiO2, nanomaterials using alginate as soft templates10.1016/j.materresbull.2016.07.014 ↗
23. Engineering nonspherical hollow structures with complex interiors by template-engaged redox etching10.1021/ja107871r ↗
24. One-pot template-free preparation of mesoporous TiO2, hollow spheres and their photocatalytic activity10.1016/j.materresbull.2012.08.046 ↗
25. Enhanced photocatalytic performance under visible and near-infrared irradiation of Cu1.8Se/Cu3Se2 composite via a phase junction10.3390/nano7010019 ↗
26. Aqueous preparation of surfactant-free copper selenide nanowires10.1016/j.jcis.2014.11.052 ↗
27. Visible light photocatalytic H2-production activity of CuS/ZnS porous nanosheets based on photoinduced interfacial charge transfer10.1021/nl202587b ↗
28. Ion-exchange synthesis and enhanced visible-light photoactivity of CuS/ZnS nanocomposite hollow spheres10.1021/jp101816c ↗
29. Study of PbSe layer oxidation and oxide dissolution10.1016/S0169-4332(98)00606-0 ↗
30. Ambient facile synthesis of gram-scale copper selenide nanostructures from commercial copper and selenium powder10.1021/acsami.5b01085 ↗
31. Rapid synthesis and characterization of nearly dispersed marcasite CuSe2 and berzelianite Cu2Se crystallites using the chemical reduction process10.1016/j.materresbull.2017.08.052 ↗
32. Hydrothermal synthesis of copper selenides with controllable phases and morphologies from an ionic liquid precursor10.1039/c1nr10833f ↗
33. Effect of air exposure on surface properties, electronic structure, and carrier relaxation in PbSe nanocrystals10.1021/nn100131w ↗
34. S-doping effects on optical properties and highly enhanced photocatalytic performance of Cu3Se2 nanoparticles under solar-light irradiation10.1016/j.ceramint.2017.08.018 ↗