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TeO 2 Nanoparticle Loaded Graphitic Carbon Nitride Hybrids: Their Preparation and Catalytic Activities in the Thermal Decomposition of Ammonium Perchlorate
Author(s) -
Li Qi,
He Yi,
Peng Rufang
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500507
Subject(s) - chemistry , calcination , ammonium perchlorate , thermal decomposition , catalysis , inorganic chemistry , nanoparticle , lewis acids and bases , graphitic carbon nitride , decomposition , nitride , nuclear chemistry , chemical engineering , organic chemistry , layer (electronics) , photocatalysis , engineering
TeO 2 nanoparticle‐loaded graphitic carbon nitride hybrids (TeO 2 NPs/g‐C 3 N 4 ) were successfully prepared by a calcination strategy. Various characterization and detection techniques were used to analyze its structure and properties. It was found that upon the addition of 10 wt.‐% of the as‐prepared hybrids, the onset decomposition temperature of ammonium perchlorate (AP) decreased by 104.4 °C. In addition, the addition of TeO 2 NPs resulted in an increase in the surface area up to 8.8 m 2 g –1 for g‐C 3 N 4 , which is three times larger than that of the bulk g‐C 3 N 4 (2.8 m 2 g –1 ). Furthermore, g‐C 3 N 4 reacted with HClO 4 by Lewis acid–base interaction, which resulted in separation of HClO 4 from AP lattice. Notably, the separation of the HClO 4 gas molecule led to continued decomposition of AP, as this decomposition reaction is reversible. With this in mind, a catalytic mechanism based on Lewis acid–base interaction was proposed to illustrate the catalytic process in the thermal decomposition of AP.