Journal
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
Volume 34, Issue 1, Pages 39-43Publisher
HIGHER EDUCATION PRESS
DOI: 10.1007/s40242-017-7245-0
Keywords
Persulfate; Biochar; p-Nitrophenol
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Funding
- National Natural Science Foundation of China [51608276]
- Natural Science Foundation of Jiangsu Province, China [BK20150978]
- Natural Science Foundation of the Higher Education Institutions of Jiangsu Province, China [15KJB610008]
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Three biochars from wheat straw(WSC), chicken manure(CMC) and rice husk(RHC) were prepared as persulfate(PS) activators for p-nitropheol(PNP) removal. RHC exhibitted the best adsorption performance, followed by WSC and CMC, which was consistant with the surface area value. PS addition further promoted the PNP removal, indicating that a synergistic effect existed in the biochar/PS combined system. The composition and textual properties of biochar had a significant effect on the reactivity of activator and the function groups containing oxgygen or nitrogen might play important roles in the reaction. WSC could perform efficiently over a pH range from 4.4 to 10.4. The decrease in activation performance in cycle experiments was possiblely related to the loss of oxgygen-containing groups.
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