Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles

A filter for providing potable water, comprising:

• (i) a housing having an inlet and an outlet;
• and
• (ii) a filter material disposed within said housing, said filter material comprising
• (a) from about 25% to about 75%, by weight, of a plurality of filter particles comprising microporous activated carbon, wherein:
• the sum of the mesopore and macropore volumes of said plurality of filter particles comprising microporous activated carbon is less than 0.12 mL/g,
• (b) from about 25% to about 75%, by weight, of a plurality of filter particles comprising mesoporous activated carbon, wherein:
• the sum of the mesopore and macropore volumes of said plurality of filter particles comprising mesoporous activated carbon is between about 0.2 mL/g and about 2 mL/g, and
• the total pore volume of said plurality of filter particles comprising mesoporous activated carbon is greater than about 0.4 mL/g and less than about 3 mL/g, and
• (c) wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm,
• (d) wherein macropore means an intra-particle pore having a diameter greater than 50 nm;
• (iii) wherein the filter has a Filter Bacteria Log Removal of greater than about 2 logs and a Filter Viruses Log Removal of greater than 1 log.

A filter for providing potable water, comprising:

• (i) a housing having an inlet and an outlet;
• and
• (ii) a filter material disposed within said housing, said filter material comprising
• (a) from about 25% to about 75%, by weight, of a plurality of filter particles comprising microporous activated carbon, wherein:
• the sum of the mesopore and macropore volumes of said plurality of filter particles comprising microporous activated carbon is less than 0.12 mL/g,
• (b) from about 25% to about 75%, by weight, of a plurality of filter particles comprising mesoporous activated carbon, wherein:
• the sum of the mesopore and macropore volumes of said plurality of filter particles comprising mesoporous activated carbon is between about 0.2 mL/g and about 2 mL/g,
• the total pore volume of said plurality of filter particles comprising mesoporous activated carbon is greater than about 0.4 mL/g and less than about 3 mL/g, and
• said plurality of filter particles comprising mesoporous activated carbon are coated at least partially or entirely with a cationic polymer, and
• (c) mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and
• (d) macropore means an intra-particle pore having a diameter greater than 50 nm;
• (iii) wherein the filter has a Filter Bacteria Log Removal of greater than about 2 logs and a Filter Viruses Log Removal of greater than 1 log.