公开(公告)号：US09731227B2

公开(公告)日：2017-08-15

申请号：US14501058

申请日：2014-09-30

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Jifan Li ,  Yee Man Ho ,  Ka Chun Lee ,  Wai Yan Chan

IPC: C02F1/28 ,  C02F1/42 ,  B01D24/00 ,  C02F101/00 ,  C02F101/12 ,  C02F101/32 ,  C02F101/20

CPC classification number: B01D24/001 ,  C02F1/281 ,  C02F1/283 ,  C02F1/286 ,  C02F1/288 ,  C02F1/42 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2001/427 ,  C02F2101/006 ,  C02F2101/12 ,  C02F2101/20 ,  C02F2101/322 ,  C02F2303/04

Abstract: The present invention relates to a filter element for disinfecting, cleaning and purifying household water, by removing pollutants such as heavy metals, bacteria, VOCs, and even radioactive substance. The present filter element comprises activated carbon, ion exchange resins (cationic and anionic), biopolymer and transitional metal oxide. Said biopolymer and transitional metal oxide are both in particle form and said transitional metal oxide particle can be either incorporated into the biopolymer particle or directly incorporated into the present filter element as individual particle. Maximum capacity of the present filter element can reach up to 150 L of household water. Some of the pollutants can be removed by up to 99% by the present filter element. A method of preparing the present filter element is also disclosed herein.

公开(公告)号：US09980484B2

公开(公告)日：2018-05-29

申请号：US14501059

申请日：2014-09-30

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Jifan Li ,  Yee Man Ho ,  Ka Chun Lee ,  Wai Yan Chan ,  Mui Chan ,  Kai Ming Yeung

IPC: A01N43/16 ,  B01J21/06 ,  B01J20/30 ,  B01J20/28 ,  B01J20/26 ,  B01D39/16

CPC classification number: A01N43/16 ,  B01D39/1676 ,  B01D2239/10 ,  B01J20/267 ,  B01J20/28083 ,  B01J20/28085 ,  B01J20/3085 ,  B01J21/063

Abstract: A self-regenerating chitosan based filter medium for disinfecting and purifying organic pollutants and other pollutants in a gas or liquid is disclosed herein. Porosity and surface charge of said filter medium is manipulative/tunable by varying one or more of the following parameter(s): concentration of chitosan, crosslinking density, amount of copolymers and additives, freezing temperature, freezing profile, and/or types of crosslinker used. The present filter medium is capable of self-regenerating under exposure to ultra-violet light for sufficient time and removing over 90% of the pollutants from each influent flowing through the filter medium.

公开(公告)号：US08852333B2

公开(公告)日：2014-10-07

申请号：US13717734

申请日：2012-12-18

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Ka Wai Wong ,  Xinghua Li ,  Yee Man Ho ,  Wing Yee Cheng ,  Ka Cheong Luk

IPC: C09D183/00 ,  C08K3/34

CPC classification number: C08K3/34 ,  C09D4/00

Abstract: A new generation environmental friendly water-based coating composition which exhibits excellent coating film properties is disclosed. Said water-based coating composition comprises mesoporous silica nanoparticles in organosilica, water, and a film-forming catalyst, and optionally with a small amount of ethanol. Method for manufacturing said water-based coating composition and the use thereof are also disclosed.

Abstract translation: 公开了一种显示出优异的涂膜性能的新一代环保水性涂料组合物。 所述水性涂料组合物包括有机二氧化硅中的介孔二氧化硅纳米颗粒，水和成膜催化剂，以及任选地少量的乙醇。 还公开了制备所述水性涂料组合物的方法及其用途。