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

Patent metadata

Field	Value
Publication number	US-2017341053-A1
Application number	US-201715681826-A
Country	US
Kind code	A1
Filing date	Aug 21, 2017
Priority date	Feb 21, 2011
Publication date	Nov 30, 2017
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 . An adsorbent comprising:
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, and one or more peaks between 70 nm and 180 nm in a pore diameter distribution as determined by Non Localized Density Functional Theory.

15 . The adsorbent of claim 1 , 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 adsorbent of claim 2 , 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 adsorbent of claim 3 , wherein the porous carbonaceous material further comprises micropores having a pore diameter less than about 2 nm.

18 . The adsorbent of claim 1 , 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 adsorbent of claim 1 , 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 adsorbent of claim 1 , 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 adsorbent of claim 1 , wherein the porous carbonaceous material is made from a plant-based material; and the plant-based material comprises at least one material selected from the group consisting of chaff, straws, coffee beans, tea leaves, sugar canes, corns, fruit peels, reeds and Wakame seaweed stems.

22 . A carbon/polymer composite comprising:
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, one or more peaks between 70 nm and 180 nm in a pore diameter distribution 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.

23 . The carbon/polymer composite of claim 9 , 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 carbon/polymer composite of claim 10 , wherein the porous carbonaceous material further comprises micropores having a pore diameter less than about 2 nm.

25 . The carbon/polymer composite of claim 9 , 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 carbon/polymer composite of claim 9 , 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 carbon/polymer composite of claim 9 , 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 carbon/polymer composite of claim 9 , wherein the porous carbonaceous material is made from a plant-based material; and the plant-based material comprises at least one material selected from the group consisting of chaff, straws, coffee beans, tea leaves, sugar canes, corns, fruit peels, reeds and Wakame seaweed stems.

29 . An adsorbent sheet, comprising:
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, one or more peaks between 70 nm and 180 nm in a pore diameter distribution 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.

30 . The adsorbent sheet of claim 16 , 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 adsorbent sheet of claim 17 , wherein the porous carbonaceous material further comprises micropores having a pore diameter less than about 2 nm.

32 . The adsorbent sheet of claim 16 , wherein the porous carbonaceous material is made from a plant-based material; and the plant-based material is at least one material selected from the group consisting of chaff, straws, coffee beans, tea leaves, sugar canes, corns, fruit peels, reeds and Wakame seaweed stems.

33 . The adsorbent sheet of claim 16 , wherein the support member comprises 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

• B01J20/30

  Processes for preparing, regenerating, or reactivating · CPC title

• B01J2220/485

  Plants or land vegetals, e.g. cereals, wheat, corn, rice, sphagnum, peat moss · CPC title

• B01J20/28057

  Surface area, e.g. B.E.T specific surface area · CPC title

• B01J2220/4875

  the starting material being a waste, residue or of undefined composition · CPC title