Method for producing hollow activated carbon nanofiber for activating peroxymonosulfate, catalyst for purifying water, and method for purifying water
AssigneeUIF (University Industry Foundation), Yonsei University
InventorsJung Ho Hwang, Sang Mo Kang, Hyeong Rae Kim
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Abstract
The present invention relates to a method for producing hollow activated carbon nanofibers for activating peroxymonosulfate used in water purification; a catalyst for water purification comprising the hollow active carbon nanofibers produced by the method; and a method for purifying contaminated water using the catalyst. The production method of the present invention can easily produce hollow activated carbon nanofibers capable of rapidly purifying contaminated water by highly efficiently activating peroxymonosulfate used for water purification.
Claims13
A method for producing hollow activated carbon nanofibers for activating peroxymonosulfate (PMS), comprising:
- electrospinning two different materials in a concentric cross-section such that a material comprising at least one of manganese acetate and cobalt acetate and polymethyl methacrylate (PMMA) is disposed on the inside and a material comprising peroxyacetyl nitrate (PAN) is disposed on the outside;
- performing a first thermal treatment on the structure formed by the electrospinning until a first predetermined temperature in an air atmosphere;
- performing a second thermal treatment on the first thermally treated structure until a second predetermined temperature in a nitrogen atmosphere;
- and
- activating the second thermally treated structure by applying a predetermined gas or water vapor.
A catalyst for purifying water, comprising hollow activated carbon nanofibers for activating peroxymonosulfate, wherein the hollow activated carbon nanofibers are formed of a carbon material body formed into a tubular shape in which a hollow is formed on the inside, and a plurality of fine pores are formed in the body, CoxMn3-xO4 is distributed in at least one of the hollow and the fine pores, and x in CoxMn3-xO4 is 0 to 3.
Dependencies are inferred from the claim text.