Patent SG-11201810081X-A (SG)
Title: Multifunctional superhydrophilic and underwater superoleophobic activated glass derived from waste glass
Inventor: ZHANG HUA
IPC: B01D39/06
Filed: 2017-08-04
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 11111111111011101 HIM 01101001110101111011001 211011111011110111111 Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\" WO 2018/026328 Al 08 February 2018 (08.02.2018) WIP0 I PCT (51) International Patent Classification: MA, Qinglang; c/o Nanyang Technological University, 50 BOlD 71/04 (2006.01) BOlD 17/022 (2006.01) Nanyang Avenue, Singapore 639798 (SG). BOlD 39/06 (2006.01) CO2F 1/40 (2006.01) (74) Agent: VIERING, JENTSCHURA & PARTNER LLP; (21) International Application Number: P.O Box 1088, Rochor Post Office, Rochor Road, Singapore PCT/5G2017/050393 911833 (SG). (22) International Filing Date: (81) Designated States (unless otherwise indicated, for every 04 August 2017 (04.08.2017) kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (25) Filing Language: English CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, (26) Publication Language: English DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (30) Priority Data: HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, 10201606456U 04 August 2016 (04.08.2016) SG KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, (71) Applicant: NANYANG TECHNOLOGICAL OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, UNIVERSITY [SG/SG]; 50 Nanyang Avenue, Singapore SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 639798 (SG). TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (72) Inventors: ZHANG, Hua; c/o Nanyang Technological (84) Designated States (unless otherwise indicated, for every University, 50 Nanyang Avenue, Singapore 639798 (SG). kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, Title: MULTIFUNCTIONAL SUPERHYDROPHILIC AND UNDERWATER SUPEROLEOPHOBIC ACTIVATED GLASS _ (54) DERIVED FROM WASTE GLASS FIG. 1 Glass Slide Glass Powder Glass dispersion 1Milling SHIMS° M esh SS Mesh Brush 1 / 4 •; ;; \ \ Coating K V ' * , • h Hydrothermal , \''N • Treatment \ : 4 1-1 (57) : In present invention, a glass material which is superhydrophilic at least in air and superoleophobic when submerged GO in water is provided. Additionally, a process for making the glass material from waste glass through a green and sustainable route is en ei provided. The process comprises crushing the waste glass to form powder through ball milling, dispersing the crushed waste glass in a solvent to form a dispersion, coating said dispersion onto a substrate, drying the coated substrate and subjecting the dried substrate C to a hydrothermal treatment for less than 24 hours in the presence of an aqueous medium (e.g. deionized water). The resultant glass ---, comprises a porous layer comprising interconnected silica-based fibers and exhibit excellent performance in the selective separation *t of a wide range of oil/water mixtures, even under various harsh conditions. Furthermore, the glass material can remove water-soluble 1-1 C contaminants simultaneously during the oil/water separation process, leading to multifunctional water purification. ei C [Continued on next page] WO 2018/026328 Al IMEDIMOMMIDIRDERIONEEHEINIOnlinINIE UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))