Tailored synthesis of macroporous Pt/WO3 photocatalyst with nanoaggregates via flame assisted spray pyrolysis

被引：24

作者：

Arutanti, Osi ^{[1
]}

Arif, Aditya Farhan ^{[1
]}

Balgis, Ratna ^{[1
]}

Ogi, Takashi ^{[1
]}

Okuyama, Kikuo ^{[1
]}

Iskandar, Ferry ^{[2
]}

机构：

[1] Hiroshima Univ, Grad Sch Engn, Dept Chem Engn, 1-4-1 Kagamiyama, Higashihiroshima 7398527, Japan

[2] Inst Teknol Bandung, Dept Phys, Jl Ganesha 10, Bandung 40132, Indonesia

来源：

AICHE JOURNAL | 2016年 / 62卷 / 11期

关键词：

visible light photocatalyst; tungsten trioxide; nanostructured particle; macroporous structure; nanoaggregate; VISIBLE-LIGHT; TUNGSTEN-OXIDE; WO3; PARTICLES; PERFORMANCE; DEGRADATION; ADSORPTION; OXIDATION; OXYGEN;

D O I：

10.1002/aic.15349

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

High-surface-area macroporous WO3 particles with deposited Pt (Pt/WO3) were successfully synthesized for the first time, using flame-assisted spray pyrolysis. Nanoparticle aggregates-like structures (nanoaggregates) were formed, although a salt precursor was used for the synthesis. The macroporous structure was tailored by changing the mass ratio of the polystyrene template to ammonium tungstate pentahydrate. The cavities between the nanoaggregates formed mesopores, which increased the surface area. The presence of meso- and macro-pores in the synthesized Pt/WO3 particles improved their photocatalytic activities in visible-light-induced photodegradation of rhodamine B. The combination of a high surface area and the presence of an in situ-deposited Pt cocatalyst gave a high photodecomposition rate, approximately 9.6 times higher than that achieved with dense WO3 particles. This research provides a promising strategy for synthesizing submicron particles with high surface areas at a high production rate, and is suitable for industrial applications. (c) 2016 American Institute of Chemical Engineers AIChE J, 62: 3864-3873, 2016

引用

页码：3864 / 3873

页数：10

共 30 条

[1]

Abbott M.M., 2001, INTRO CHEM ENG THERM, V7th

[2] Experimental and theoretical approach to evaluation of nanostructured carbon particles derived from phenolic resin via spray pyrolysis [J].