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[期刊论文]

Hollow mesoporous titania microspheres: New technology and enhanced photocatalytic activity

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author:

Feng, Z. (Feng, Z..) [1] | Wei, W. (Wei, W..) [2] | Wang, L. (Wang, L..) [3] | Unfold

Indexed by:

Scopus

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. © 2015 Elsevier B.V. All rights reserved.

Keyword:

Changing atmospheric pressure; Hollow titania microspheres; Modified porous PS-DVB; Photocatalytic degradation

Community:

  • [ 1 ] [Feng, Z.]School of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Wei, W.]School of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Wang, L.]School of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Hong, R.]School of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Hong, R.]College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Organic Synthesis of Jiangsu Province, Soochow University, SIP, Suzhou, 215123, China

Reprint 's Address:

  • [Hong, R.]School of Chemical Engineering, Fuzhou UniversityChina

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Source :

Applied Surface Science

ISSN: 0169-4332

Year: 2015

Volume: 357

Page: 759-765

3 . 1 5

JCR@2015

6 . 3 0 0

JCR@2023

ESI HC Threshold:335

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 10

30 Days PV: 0

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