Metal-free activation of H2O2 by g-C3N4 under visible light irradiation for the degradation of organic pollutants.

Content Provider	Semantic Scholar
Author	Cui, Yanjuan Ding, Zhengxin Liu, Ping Antonietti, Markus Fu, Xianzhi Wang, Xinchen
Copyright Year	2012
Abstract	Semiconducting carbon nitride materials were successfully prepared via a thermal poly-condensation of dicyandiamide as a precursor at >500 °C. The resulting materials were investigated as metal-free catalysts for the activation of H(2)O(2) with visible light under mild conditions, using the decomposition of Rhodamine B (RhB) in aqueous solution as a model reaction. Results revealed that carbon nitride catalysts can activate H(2)O(2) to generate reactive oxy-radicals under visible light irradiation without employment of any metal additives, leading to the mineralization of the dye. Factors affecting the degradation of organic compounds are pH values and the concentration of H(2)O(2). Recycling of the catalyst indicated no obvious deactivation during the entire catalytic reaction, indicating good (photo)chemical stability of metal-free polymeric carbon nitride photocatalysts for environmental purification. This study demonstrated a promising approach for the activation of green oxidant, hydrogen peroxide, by the newly-developed polymer photocatalysts for environmental remediation and oxidation catalysis.
File Format	PDF HTM / HTML
DOI	10.1039/c1cp22820j
Alternate Webpage(s)	https://pure.mpg.de/rest/items/item_1924608_2/component/file_2157531/content
PubMed reference number	22159039
Alternate Webpage(s)	https://doi.org/10.1039/c1cp22820j
Journal	Medline
Volume Number	14
Issue Number	4
Journal	Physical chemistry chemical physics : PCCP
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article