Novel Sorbents of Non-Metal-Doped Spinel Co^sub 3^O^sub 4^ for the Removal of Gas-Phase Elemental Mercury

N-doping technology is introduced to improve ...'s ... removal ability and anion activation ability for the first time. The adsorption tests show that N-doped ... has a higher ... and greater ... removal ability. The reaction mechanism has been carefully studied using a number of different anal...

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Bibliographic Details
Published inEnvironmental science & technology Vol. 42; no. 2; p. 590
Main Authors Mei, Zhijian, Shen, Zhemin, Wang, Wenhua, Zhang, Yejian
Format Journal Article
LanguageEnglish
Published Easton American Chemical Society 15.01.2008
Subjects
Adsorption
Mercury
Sorbents
Sorption
Spectrum analysis
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Summary:N-doping technology is introduced to improve ...'s ... removal ability and anion activation ability for the first time. The adsorption tests show that N-doped ... has a higher ... and greater ... removal ability. The reaction mechanism has been carefully studied using a number of different analyses methods such as X-ray diffraction, Brunauer-Emmett-Teller, and X-ray photoelectron spectroscopy. The analysis results illustrate that N atoms have been doped into a ... matrix as anions and are thought to substitute for O atoms. Anions, such as ... and ..., can be activated by N-doped ... and then oxidize ... It is considered that nitrogen atoms in polycrystalline N-doped ... are responsible for the significant enhancement of ... removal ability. Different ... or ... adulteration values have been tested, and the results show that 50 mol % ... or 40 mol % ...doped ... have the highest ... removal ability. Compared with ..., N-doped ... has a longer breakthrough time and better ... antipoisoning ability. On the basis of the above analyses, possible ... oxidation mechanisms of N-doped ... are provided. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:0013-936X