Adsorbent for adsorbing virus and/or bacterium, carbon/polymer composite and adsorbent sheet

Patent metadata

Field	Value
Publication number	US-2016236168-A1
Application number	US-201615137351-A
Country	US
Kind code	A1
Filing date	Apr 25, 2016
Priority date	Feb 21, 2011
Publication date	Aug 18, 2016
Grant date	—

Abstract

[Object] To provide an adsorbent, an adsorbent sheet, and a carbon/polymer composite for adsorbing a virus having further improved virus adsorption capability.
[Solving Means] An adsorbent for adsorbing a virus according to the present invention has a specific surface area value as measured by the nitrogen BET method of 10 m 2 /g or more and a pore volume as measured by the BJH method of 0.1 cm 3 /g or more. An adsorbent sheet for adsorbing a virus according to the present invention includes a porous carbonaceous material having a specific surface area value as measured by the nitrogen BET method of 10 m 2 /g or more and a pore volume as measured by the BJH method of 0.1 cm 3 /g or more. A carbon/polymer composite for adsorbing a virus according to the present invention includes a porous carbonaceous material having a specific surface area value as measured by the nitrogen BET method of 10 m 2 /g or more and a pore volume as measured by the BJH method of 0.1 cm 3 /g or more; and a binder.

First claim

1 - 13 . (canceled)

14 . A method, comprising:
providing a porous carbonaceous material comprising pores having diameters in a range from 1×10 −9 m to 5×10 −7 m, wherein the porous carbonaceous material has a specific surface area of 10 m 2 /g or more as measured by a nitrogen BET method and a total pore volume of 0.1 cm 3 /g or more as determined by Non Localized Density Functional Theory; and adsorbing a virus and/or a bacterium to the porous carbonaceous material.

15 . The method according to claim 14 , wherein the porous carbonaceous material has at least one peak in a pore diameter distribution in a range from 3 nm to 20 nm as determined by Non Localized Density Functional Theory, and a ratio of the volume of pores with diameters in the range from 3 nm to 20 nm to the total pore volume of 0.2 or more.

16 . The method according to claim 15 , wherein the porous carbonaceous material comprises mesopores having a pore diameter in a range of about 2 nm to about 50 nm and macropores having a pore diameter greater than about 50 nm.

17 . The method according to claim 16 , wherein the porous carbonaceous material further comprises micropores having a pore diameter less than about 2 nm.

18 . The method according to claim 14 , wherein the porous carbonaceous material has a pore volume of 0.5 cm 3 /g or more as measured by a BJH method.

19 . The method according to claim 14 , wherein the porous carbonaceous material has a pore volume of 4.12 cm 3 /g or more as measured by a mercury intrusion method.

20 . The method according to claim 14 , wherein the porous carbonaceous material has a pore volume of 0.515 cm 3 /g or more as measured by an MP method.

21 . The method according to claim 14 , wherein:
the porous carbonaceous material is made from a plant-based material; and the plant-based material comprises chaff, straws, coffee beans, tea leaves, sugar canes, corns, fruit peels, reeds, and/or Wakame seaweed stems.

22 . A method, comprising:
providing a carbon/polymer composite, wherein the carbon/polymer composite comprises:
a porous carbonaceous material comprising pores having diameters in a range from 1×10 −9 m to 5×10 −7 m, wherein the porous carbonaceous material has a specific surface area of 10 m 2 /g or more as measured by a nitrogen BET method, a total pore volume of 0.1 cm 3 /g or more as determined by Non Localized Density Functional Theory, at least one peak in a pore diameter distribution in a range from 3 nm to 20 nm as determined by Non Localized Density Functional Theory, and a ratio of the volume of pores with diameters in the range from 3 nm to 20 nm to the total pore volume of 0.2 or more; and
a binder; and
adsorbing a virus and/or a bacterium to the carbon/polymer composite.

23 . The method according to claim 22 , wherein the porous carbonaceous material comprises mesopores having a pore diameter in a range of about 2 nm to about 50 nm and macropores having a pore diameter greater than about 50 nm.

24 . The method according to claim 23 , wherein the porous carbonaceous material further comprises micropores having a pore diameter less than about 2 nm.

25 . The method according to claim 22 , wherein the porous carbonaceous material has a pore volume of 0.5 cm 3 /g or more as measured by a BJH method.

26 . The method according to claim 22 , wherein the porous carbonaceous material has a pore volume of 4.12 cm 3 /g or more as measured by a mercury intrusion method.

27 . The method according to claim 22 , wherein the porous carbonaceous material has a pore volume of 0.515 cm 3 /g or more as measured by an MP method.

28 . The method according to claim 22 , wherein:
the porous carbonaceous material is made from a plant-based material; and the plant-based material comprises chaff, straws, coffee beans, tea leaves, sugar canes, corns, fruit peels, reeds, and/or Wakame seaweed stems.

29 . A method, comprising:
providing an adsorbent sheet, wherein the adsorbent sheet comprises:
a porous carbonaceous material comprising pores having diameters in a range from 1×10 −9 m to 5×10 −7 m, wherein the porous carbonaceous material has a specific surface area of 10 m 2 /g or more as measured by a nitrogen BET method, a total pore volume of 0.1 cm 3 /g or more as determined by Non Localized Density Functional Theory, at least one peak in a pore diameter distribution in a range from 3 nm to 20 nm as determined by Non Localized Density Functional Theory, and a ratio of the volume of pores with diameters in the range from 3 nm to 20 nm to the total pore volume of 0.2 or more; and
a support member; and
adsorbing a virus and/or a bacterium to the adsorbent sheet.

30 . The method according to claim 29 , wherein the porous carbonaceous material comprises mesopores having a pore diameter in a range of about 2 nm to about 50 nm and macropores having a pore diameter greater than about 50 nm.

31 . The method according to claim 30 , wherein the porous carbonaceous material further comprises micropores having a pore diameter less than about 2 nm.

32 . The method according to claim 29 , wherein:
the porous carbonaceous material is made from a plant-based material; and the plant-based material comprises chaff, straws, coffee beans, tea leaves, sugar canes, corns, fruit peels, reeds, and/or Wakame seaweed stems.

33 . The method according to claim 29 , wherein the support member is composed of a non-woven fabric.

Assignees

• Sony Corp

Inventors

• Iida Hironori
• Yamanoi Shun
• Minatoya Machiko
• Tabata Seiichiro
• Yamada Shinichiro

Classifications

• C01B32/318

  characterised by the starting materials · CPC title

• B01J20/2808

  being less than 2 nm, i.e. micropores or nanopores · CPC title

• B01J20/28088

  Pore-size distribution · CPC title

• B01J20/28069

  Pore volume, e.g. total pore volume, mesopore volume, micropore volume · CPC title

• B01J2220/4825

  Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton · CPC title