Hollow mesoporous titania microspheres: New technology and enhanced photocatalytic activity
Source abstract
Abstract
Abstract Hollow titania microspheres (HTS) were fabricated via a sol–gel process by coating the hydrolysis product of titanium tetrabutoxide (TBOT) onto the amino (–NH 2 ) modified porous polystyrene cross-linked divinyl benzene (PS-DVB) microspheres under changing atmospheric pressure, followed by calcination in nitrogen and air atmosphere. Particularly, the atmospheric pressure was continuously and regularly changed during the formation process of PS-DVB@TiO 2 microspheres. Then the TiO 2 particles were absorbed into the pores and onto the surface of PS-DVB as well. The resultant HTS (around 2 μm in diameter) featured a high specific surface area (84.37 m 2 /g), anatase crystal and stable hollow microsphere structure, which led to high photocatalysis activity. The photocatalytic degradation of malachite green (MG) organic dye solution was conducted under ultraviolet (UV) light irradiation, which showed a high photocatalytic ability (81% of MG was degraded after UV irradiation for 88 min). Therefore, it could be potentially applied for the treatment of wastewater contaminated by organic pollutants.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Covalent Organic Framework Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Emerging organic contaminants in groundwater: a review of sources, fate and occurrence10.1016/j.envpol.2011.12.034 ↗
2. Low cost adsorbents for the removal of organic pollutants from wastewater10.1016/j.jenvman.2012.08.028 ↗
3. Mophology-modulations of TiO2 nanostructures for enhanced photocatalytic performance10.1016/j.apsusc.2015.01.052 ↗
4. Enhanced photocatalytic activity of nitrogen and indium co-doped mesoporous TiO2 nanocomposites for the degradation of 2,4-dinitrophenol under visible light10.1016/j.apsusc.2015.03.017 ↗
5. Dielectric constant controlled solvothermal synthesis of a TiO2 photocatalyst with tunable crystallinity: a strategy for solvent selection10.1002/ejic.200900199 ↗
6. Hollow TiO2 hemispheres obtained by colloidal templating for application in dye-sensitized solar cells10.1002/adma.200701808 ↗
7. Improved-performance dye-sensitized solar cells using Nb-doped TiO2 electrodes: efficient electron injection and transfer10.1002/adfm.200901292 ↗
8. Preparation and electrochemical properties of TiO2 hollow spheres as an anode material for lithium-ion batteries10.1016/j.jpowsour.2009.02.056 ↗
9. Wavelength-sensitive photocatalytic degradation of methyl orange in aqueous suspension over iron (III)-doped TiO2 nanopowders under UV and visible light irradiation10.1021/jp060082z ↗
10. A simple sol–gel processing for the development of high-temperature stable photoactive anatase titania10.1021/cm070980n ↗
11. Development of water-soluble single-crystalline TiO2 nanoparticles for photocatalytic cancer-cell treatment10.1002/smll.200600488 ↗
12. Size-and shape-dependent transformation of nanosized titanate into analogous anatase titania nanostructures10.1021/ja0607483 ↗
13. Mesoporous hollow TiO2 microspheres with enhanced photoluminescence prepared by a smart amino acid template10.1039/c0jm03628e ↗
14. Radially oriented mesoporous TiO2 microspheres with single-crystal-like anatase walls for high-efficiency optoelectronic devices10.1126/sciadv.1500166 ↗
15. Ordered mesoporous black TiO2 as highly efficient hydrogen evolution photocatalyst10.1021/ja504802q ↗
16. Mesoporous titania spheres with tunable chamber structure and enhanced photocatalytic activity10.1021/ja072191c ↗
17. Coupling of titania inverse opals to nanocrystalline titania layers in dye-sensitized solar cells10.1021/jp802692u ↗
18. Microscale fish bowls: a new class of latex particles with hollow interiors and engineered porous structures in their surfaces10.1021/la702324q ↗
19. Shape-controlled synthesis of TiO2 hollow structures and their application in lithium batteries10.1039/C1JM14637H ↗
20. Fabrication and application of inorganic hollow spheres10.1039/c1cs15103g ↗
21. Thermal evolution of structure and photocatalytic activity in polymer microsphere templated TiO2 microbowls10.1016/j.apsusc.2014.04.082 ↗
22. Nanoengineering of inorganic and hybrid hollow spheres by colloidal templating10.1126/science.282.5391.1111 ↗
23. Facile preparation method of SiO2/PS/TiO2 multilayer core–shell hybrid microspheres10.1021/la062220h ↗
24. Synthesis of raspberry-like particles using polyelectrolyte multilayer-coated particles10.1039/b712455d ↗
25. Preparation of a three-dimensional ordered macroporous titanium dioxide material with polystyrene colloid crystal as a template10.1002/app.27433 ↗
26. Room temperature deposition of a TiO2 thin film from aqueous peroxotitanate solution10.1039/b208681f ↗
27. Hollow mesoporous titania microsphere with low shell thickness/diameter ratio and high photocatalysis10.1016/j.apsusc.2012.04.176 ↗
28. Multilayered titania, silica, and laponite nanoparticle coatings on polystyrene colloidal templates and resulting inorganic hollow spheres10.1021/cm001175a ↗
29. Effective gel for gold nanoparticle formation, support and metal oxide templating10.1039/b704825d ↗
30. Preparation and characterization of titania-coated polystyrene spheres and hollow titania shells10.1021/la001604j ↗
31. Preparation and application of partially porous poly(styrene-divinylbenzene) particles for lipase immobilization10.1002/1097-4628(20010404)80:1<39::AID-APP1072>3.0.CO;2-# ↗
32. Preparation of diazotized polystyrene latex and its use in agglutination assays10.1016/0022-1759(89)90348-7 ↗
33. Chemical modifications on polystyrene latex: preparation and characterization for use in immunological applications10.1002/(SICI)1099-1581(199701)8:1<44::AID-PAT613>3.0.CO;2-1 ↗
34. Hollow mesoporous titania microsphere with low shell thickness/diameter ratio and high photocatalysis10.1016/j.apsusc.2012.04.176 ↗
35. Structured polymer grafts on diamond10.1021/ja075378c ↗
36. Chemical modifications on polystyrene latex: preparation and characterization for use in immunological applications10.1002/(SICI)1099-1581(199701)8:1<44::AID-PAT613>3.0.CO;2-1 ↗
37. Tube-in-tube TiO2 nanotubes with porous walls: fabrication, formation mechanism, and photocatalytic properties10.1002/smll.201001849 ↗
38. Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984)10.1351/pac198557040603 ↗