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Rapid Discovery of a Photocatalyst for Air Purification by High‐Throughput Screening
Author(s) -
Sun Song,
Zhang Fan,
Qi Zeming,
Ding Jianjun,
Bao Jun,
Gao Chen
Publication year - 2014
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201402332
Subject(s) - photocatalysis , air purification , toluene , mineralization (soil science) , materials science , high throughput screening , catalysis , chemical engineering , nanotechnology , chromatography , chemistry , organic chemistry , mechanical engineering , nitrogen , engineering , biochemistry
Despite several decades of intensive studies, only a few commercial photocatalysts have been discovered by means of the conventional one‐at‐a‐time synthesis and characterization. Herein, a high‐throughput screening of photocatalysts for air purification using an infrared microscope, equipped with a set of homemade in situ gas reaction cells and a gas dosing system, is described. 1.0 % La 3+ /0.4 % Nd 3+ ‐TiO 2 was rapidly selected as an active photocatalyst for toluene degradation with a mineralization rate of 93.4 % at a humidity level of 70 % in 2 h. The excellent agreement between our combinatorial results and those of the bulk samples confirms the reliability of the developed rapid screening method. In addition, the investigation of the effects of pretreatment with NH 3 and H 2 S on the photocatalytic activity also offers some information about the surface modification for air purification.