公开(公告)号：US20220162469A1

公开(公告)日：2022-05-26

申请号：US17667196

申请日：2022-02-08

Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS

Inventor： Pradeep Thalappil ,  Avijit Baidya ,  Mohd. Azhardin Ganayee ,  Swathy Jakka Ravindran

IPC: C09D101/02 ,  C09D7/63 ,  C09D7/61 ,  C08B15/05 ,  C08B15/06 ,  C09D101/08 ,  C09D5/16

Abstract: The present invention relates to adurable and multifunctional superhydrophobic coating composition and water based fabrication method of producing the durable and multifunctional superhydrophobic coating composition via chemical modification and functionalization of hydrophilic material by silanes under room temperature without any organic solvents. Synthesis of chemically modified cellulose nanofibers or clay in water forms excellent water repelling thin films upon coating over various substrates. The super hydrophobic materials are used as additive for paints, pigments, paper, varnish and, textile and used for various industrial applications such as construction of buildings and other super structures.

公开(公告)号：US11242468B2

公开(公告)日：2022-02-08

申请号：US16163325

申请日：2018-10-17

Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS

Inventor： Pradeep Thalappil ,  Avijit Baidya ,  Mohd. Azhardin Ganayee ,  Swathy Jakka Ravindran

IPC: C09D101/00 ,  C09D101/02 ,  C09D7/63 ,  C09D7/61 ,  C08B15/05 ,  C08B15/06 ,  C09D101/08 ,  C09D5/16 ,  C08K3/34 ,  C08K9/06

Abstract: The present invention relates to adurable and multifunctional superhydrophobic coating composition and water based fabrication method of producing the durable and multifunctional superhydrophobic coating composition via chemical modification and functionalization of hydrophilic material by silanes under room temperature without any organic solvents. Synthesis of chemically modified cellulose nanofibers or clay in water forms excellent water repelling thin films upon coating over various substrates. The super hydrophobic materials are used as additive for paints, pigments, paper, varnish and, textile and used for various industrial applications such as construction of buildings and other super structures.

公开(公告)号：US11351508B2

公开(公告)日：2022-06-07

申请号：US16757411

申请日：2018-10-18

Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)

Inventor： Pradeep Thalappil ,  Depanjan Sarkar ,  Anirban Som ,  Biswajit Mondal ,  Swathy Jakka Ravindran

IPC: B01D67/00 ,  B01D61/02 ,  B01D69/10 ,  B01D69/14 ,  B01D71/02 ,  B01J27/051 ,  B01J35/00 ,  B01J35/10 ,  B01J37/34 ,  C01G39/06 ,  C02F1/30 ,  C02F1/44

Abstract: The present invention relates to a new method for creating nanopores in single layer molybdenum disulfide (MoS2) nanosheets (NSs) by the electrospray deposition (ESD) of silver ions on a water suspension of the former. Electrospray deposited silver ions react with the MoS2 NSs at the liquid-air interface resulting in Ag2S nanoparticles (NPs) which goes into the solution leaving the NSs with holes of 3-5 nm diameter. Specific reaction with the S of MoS2 NSs leads to Mo-rich edges. Such Mo-rich defects are highly efficient for the generation of active oxygen species such as H2O2, under visible light, which causes efficient disinfection of water. The holey MoS2 NSs shows 105 times higher efficiency in disinfection compared to normal MoS2 NSs. Developed a conceptual prototype and tested with multiple bacterial strains and a viral strain, demonstrating the utility of the method for practical applications.

公开(公告)号：US20190112494A1

公开(公告)日：2019-04-18

申请号：US16163325

申请日：2018-10-17

Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS

Inventor： Pradeep Thalappil ,  Avijit Baidya ,  Mohd. Azhardin Ganayee ,  Swathy Jakka Ravindran

IPC: C09D101/02 ,  C09D7/61 ,  C09D7/63

Abstract: The present invention relates to adurable and multifunctional superhydrophobic coating composition and water based fabrication method of producing the durable and multifunctional superhydrophobic coating composition via chemical modification and functionalization of hydrophilic material by silanes under room temperature without any organic solvents. Synthesis of chemically modified cellulose nanofibers or clay in water forms excellent water repelling thin films upon coating over various substrates. The super hydrophobic materials are used as additive for paints, pigments, paper, varnish and, textile and used for various industrial applications such as construction of buildings and other super structures.