The enhanced photoactivity of nanosized Bi{sub 2}WO{sub 6} catalyst for the degradation of 4-chlorophenol

Journal Article · Thu Oct 02 04:00:00 EDT 2008 · Materials Research Bulletin

OSTI ID:21143933

Hongbo, Fu ^[1]; Wenqing, Yao; Liwu, Zhang ^[1]

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1. Department of Chemistry, Tsinghua University, Beijing 100084 (China)

Nanosized Bi{sub 2}WO{sub 6} catalyst exhibited the enhanced photoactivity for the degradation of 4-chlorophenol (4-CP) under visible irradiation compared to the sample prepared by high-temperature solid reaction. The photoactivity of the catalyst was sensitive to pH variation of the suspension. Nanosized Bi{sub 2}WO{sub 6} catalyst showed the highest activity at pH 7.2. The photodegradation of 4-CP by nanosized Bi{sub 2}WO{sub 6} catalyst followed a pseudo-first-order reaction. After three recycling runs for the photodegradation of 4-CP, the activity of the catalyst did not show any significant loss, suggesting that the catalyst was stable under visible irradiation.

• OSTI ID: 21143933
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 10 Vol. 43; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BISMUTH COMPOUNDS
CATALYSTS
IRRADIATION
NANOSTRUCTURES
OXIDES
PH VALUE
SEMICONDUCTOR MATERIALS
SURFACE PROPERTIES
TUNGSTEN COMPOUNDS