A novel ternary mica-titania@rGO composite pearlescent pigment for the photocatalytic degradation of gaseous acetaldehyde

doi:10.1016/j.cej.2020.125312

SIC OpenIR

	A novel ternary mica-titania@rGO composite pearlescent pigment for the photocatalytic degradation of gaseous acetaldehyde
	Fang, XM; Lu, GH; Mahmood, A; Wang, Y; Wang, X; Xie, XF; Tang, ZH; Sun, J
	2020-09-15
Source Publication	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
Subtype	Article
Abstract	The photocatalytic application of TiO2 is limited due to low light harvesting abilities in the whole solar spectrum and fast recombination of the photoinduced electron-hole pairs. Herein, we report a TiO2-based ternary composite photocatalyst (MT@rGO-x;x = 0.05-0.2) with a pearlescent color effect, which incorporates a mica reflection core and a rGO multifunctional shell as cocatalysts. The micro flake composites were synthesized by a facile precipitation route and applied first to photodegrade gaseous acetaldehyde. MT@rGO-0.1 composite has optimal performance, which is 2.5 times photodegradation efficiency and 3 times CO2 mineralization efficiency higher than those of pure TiO2. The enhanced photocatalytic performance of MT@rGO composite is associated with effectively improved light harvesting of TiO2 by mica reflection. The presence of rGO facilitates the separation of electron-hole pairs and pollutant absorption. In addition, the superoxide radical was proved as the decisive active species for the photodegradation of acetaldehyde by electron spin resonance analyses and radical quenching tests. Our MT@rGO photocatalyst is expected to be applied as a functional and decorative additive of car paint, which is subject to photodegradation due to air pollutants.
DOI	10.1016/j.cej.2020.125312
WOS Keyword	VOLATILE ORGANIC-COMPOUNDS ; VISIBLE-LIGHT PHOTOACTIVITY ; GRAPHENE OXIDE ; FACILE SYNTHESIS ; TIO2 ; PHOTODEGRADATION ; PERFORMANCE ; OXIDATION ; VOCS ; ENHANCEMENT
Language	英语
WOS Research Area	Engineering
Publisher	ELSEVIER SCIENCE SA
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/27754
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Fang, XM,Lu, GH,Mahmood, A,et al. A novel ternary mica-titania@rGO composite pearlescent pigment for the photocatalytic degradation of gaseous acetaldehyde[J]. CHEMICAL ENGINEERING JOURNAL,2020.
APA	Fang, XM.,Lu, GH.,Mahmood, A.,Wang, Y.,Wang, X.,...&Sun, J.(2020).A novel ternary mica-titania@rGO composite pearlescent pigment for the photocatalytic degradation of gaseous acetaldehyde.CHEMICAL ENGINEERING JOURNAL.
MLA	Fang, XM,et al."A novel ternary mica-titania@rGO composite pearlescent pigment for the photocatalytic degradation of gaseous acetaldehyde".CHEMICAL ENGINEERING JOURNAL (2020).

Files in This Item:
There are no files associated with this item.

If you have any objections to this item, please fill out the form below and the administrator will contact you as soon as possible.
Content:
Email：	*
Institution:
Verification Code:	Refresh

Any comments and suggestions are welcomed.
Title:	*
Content:
Email：	*
Verification Code:	Refresh

中国科学院上海硅酸盐研究所机构知识库