Journal
APPLIED SURFACE SCIENCE
Volume 357, Issue -, Pages 759-765Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2015.09.108
Keywords
Hollow titania microspheres; Modified porous PS-DVB; Changing atmospheric pressure; Photocatalytic degradation
Categories
Funding
- National Natural Science Foundation of China (NSFC) [21246002]
- Technology Innovation Foundation of MOST [11C26223204581]
- Natural Science Foundation of Jiangsu Province [BK2011328]
- 333 Talent project of Jiangsu Province
- Minjiang Scholarship of Fujian Province
Ask authors/readers for more resources
Hollow titania microspheres (HTS) were fabricated via a sol-gel process by coating the hydrolysis product of titanium tetrabutoxide (TBOT) onto the amino (-NH2) 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@TiO2 microspheres. Then the TiO2 particles were absorbed into the pores and onto the surface of PS-DVB as well. The resultant HTS (around 2 pm 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. (C) 2015 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available