Khaello ea metsi a hloekileng ke phephetso e ntseng e eketseha e matla ntlafatsong ea sechaba. Ho tlalehoa hore karolo ea 29 lekholong ea baahi ba lefatše ha e na metsi a nooang a sireletsehileng, 'me tlhokahalo ea metsi a hloekileng e ntse e eketseha ka lebaka la kholo ea baahi le mathata a tikoloho. Metsi a hloekileng a amanang le tsamaiso ea likhoerekhoere a bohlokoa haholo molemong oa seoa sa hajoale sa lefu la coronavirus (Neocoronavirus pneumonia). Ho fetoha mouoane ha metsi a tsamaisoang ke letsatsi ho nkoa e le e 'ngoe ea mekhoa e tšepisang ka ho fetisisa ea ho hlahisa metsi a hloekileng ho tsoa metsing a leoatle le metsi a litšila ho sebelisoa khanya ea letsatsi e le eona feela mohloli oa matla. Theknoloji e itšetlehile haholo ka lisebelisoa tsa letsatsi, tse sebetsang e le mouoane ho fetola matla a letsatsi hore e be mocheso ho hlahisa mouoane. Ho finyella litekanyetso tse phahameng tsa mouoane oa metsi le matla a ho fetola mocheso oa letsatsi, lisebelisoa tse loketseng li lokela ho ba le mefuta e mengata ea ho monya ho sebelisa hantle karolo e kholo ea mahlaseli a letsatsi, ho fokotsa mocheso oa mocheso ho thibela tahlehelo ea mocheso, le litsela tse tharo (3D) tsa porous bakeng sa ho tsamaisa metsi hantle. Ho fihlela joale, bo-rasaense ba thehile lisebelisoa tse fapaneng tsa photothermal tse thehiloeng ho carbon (mohlala, graphene kapa carbon nanotubes), li-polymers, tšepe le li-oxide tsa tšepe le li-hybrids tsa tsona, joalo-joalo.
Bo-ramahlale ba ntse ba sebetsa ka thata ho batlisisa le ho etsa likhatelopele tse ngata lilemong tsa morao tjena, ka hona, a re ithuteng ho tsoa likhatisong tse 'maloa tsa lihlooho mabapi le tsoelo-pele ea lipatlisiso mabapi le pheliso ea metsi a hloekileng a futhumatsang mocheso lilemong tsa morao tjena.
- Tlhaeletsano ea Tlhaho: Makhasi a semela a susumetsa sehloekisi sa metsi se sebelisang matla a letsatsi, se sebetsang hantle haholo
Makhasi a limela tsa tlhaho tsa methapo ea mali a itšetlehile ka phapang ea khatello ea osmotic, transpiration le ho ntša metsi ho hlahisa lithane tsa metsi a hloekileng, a tsamaisoang ke khanya ea letsatsi. Ba susumelitsoe ke sena, bafuputsi sehlopheng sa Chun Li Univesithing ea Qinghua ba tlalehile ka sesebelisoa sa ho hloekisa metsi se tsamaisoang ke khanya ea letsatsi bakeng sa tlhoekiso le tlhahiso e sebetsang hantle ea metsi. Sesebelisoa sena sa ho hloekisa se tsamaisoang ke khanya ea letsatsi se na le poly(N-isopropylacrylamide) hydrogel (PN) e arabelang mocheso o mobe e khomaretsoeng mokokotlong oa foam oa melamine o nang le superhydrophilic 'me e koahetsoe ka lera la sefe la graphene (PG) le fetotsoeng ke PNIPAm ka ntle. Li-simulation tsa matla a limolek'hule le liphetho tsa liteko li bontšitse hore tlhaho ea superhydrophilic ea mokokotlo oa melamine o thata haholo e potlakisitse haholo sekhahla sa ho ruruha/ho tlosa ho ruruha ha sesebelisoa sa ho hloekisa sa PNPG-F. Tlas'a mahlaseli a tšoanang a khanya ea letsatsi, sebopeho sena se entsoeng ka bohlale se fane ka pokello ea 4.2 kg/m2/h le ho tlosoa ha ion ea > 99% bakeng sa PNPG-F e le 'ngoe ho tsoa phepong ea brine ka litlamorao tsa tšebelisano-'moho tsa mouoane le ho eketsa marotholi. Mongoli o nahana ka lits'ebetso tse kholo tse ka bang teng bakeng sa sistimi ena e sebetsang hantle haholo e tsamaisoang ke letsatsi lits'ebetsong tse fapaneng tsa kalafo ea metsi. Phuputso ena e phatlalalitsoe e le pampiri e nang le sehlooho se reng "Plant leaves e susumetsoang ke sunlight-driven purifier bakeng sa tlhahiso ea metsi a hloekileng e sebetsang hantle haholo" ho Nature subjournal Nature communications.
- Tsoelo-pele ea Saense: Marang-rang a phahameng a hydratable polymer a li-hydrogel tse monyang khanya bakeng sa tlhoekiso ea metsi a letsatsi.
Mouoane oa metsi a letsatsi bakeng sa tlhoekiso ea metsi ke theknoloji e tšepisang bakeng sa tlhahiso ea metsi a hloekileng. Leha ho le joalo, tlhahiso ea mouoane oa letsatsi ke matla a matla, e leng se bakang tlhahiso ea metsi a fokolang tlas'a khanya ea letsatsi la tlhaho. Ka hona, ho na le tlhokahalo e kholo ea ho hlahisa lisebelisoa tse ncha tse ka fokotsang tlhoko ea matla bakeng sa ho fetoha mouoane oa metsi le ho potlakisa tlhoekiso ea metsi a letsatsi. Sehlopha sa Moprofesa Guihua Yu se Austin, Texas, USA, se tlalehile hydrogel (h-LAH) e nang le metsi a mangata e monyang khanya e nang le metsi a mangata e entsoeng ka joala ea polyvinyl le chitosan e le mokokotlo oa hydration le polypyrrole e le mochine o monyang khanya, o ka sebelisang matla a fokolang (<50% ea molumo oa metsi) ho fetoha mouoane oa metsi. Ho ile ha bontšoa hore ho eketsa matla a hydration ea h-LAH ho ka fetola boemo ba metsi le ho kenya metsi ka mokhoa o sa fellang, kahoo ho nolofatsa moea oa metsi. h-LAH e ekelitse tlhahiso ea mouoane oa letsatsi ho isa tekanyong ea rekoto ea ~ 3.6 kg/m2/h ka letsatsi le le leng. Mouoane oa metsi oa letsatsi o thehiloeng ho h-LAH o ile oa boela oa bontša ho tšoarella ha nako e telele le thepa ea antifouling khahlanong le litšila tse rarahaneng tsa ionic. Liphuputso li ile tsa hatisoa pampiring e nang le sehlooho se reng "Makhasi a limela a bululetsoeng ho hloekisa letsatsi bakeng sa tlhahiso e phahameng ea metsi a hloekileng" ho Science subjournal Science Advances ".
- Angew: Lisebelisoa tsa COF tse nang le superhydrophilicity le khanya e pharalletseng ea wavevelength bakeng sa mouoane oa metsi a photothermal.
Hydrophobicity ea tlhaho le ho monyeha ha leseli le lekanyelitsoeng la li-porous organic polymers, haholo-holo sebakeng se haufi le infrared (NIR), ke litšitiso tse peli tse sitisang ts'ebeliso ea tsona molemong oa tlhahiso ea mouoane oa letsatsi (SSG). Bafuputsi sehlopheng sa Xiaoli Yan Univesithing ea Jilin ba thehile "covalent organic framework" (COF) e thehiloeng ho 1,4,5,8 tetrakis(phenylamino)anthracene-9,10-dione (TPAD) (TPAD-COF), e khetholloang ka superhydrophilicity le khanya e pharaletseng e koahelang SSG e bonahalang sebakeng sohle sa UV / UV. TPAD-COF, e le sesebelisoa se sebetsang sa ho fetola photothermal ntle le li-additives, e bonts'a mouoane o babatsehang oa metsi oa 1.42 kg / m2 / h 'me e finyella katleho e phahameng ea ho fetola matla a 94% tlas'a mahlaseli a le mong a matla a letsatsi. Katoloso e 'ngoe ea letoto la ho monya leseli la COF e thehiloeng ho TPAD e fihletsoe ka phetoho ea morao-rao ea limolek'hule tsa chelated BF2. Liteko le tlhahlobo ea taolo e hlophisitsoeng li tiisa hore hydrophilicity ea sesebelisoa sa phetoho ea photothermal e phetha karolo e kholo ho feta li-COF tse thehiloeng ho TPAD tse sebelisetsoang ho fetoha mouoane oa metsi a photothermal. Mosebetsi oa lipatlisiso, o nang le sehlooho se reng "Superhydrophilic2D Covalent Organic Frameworks as Broadband Absorbers for Efficient Solar Steam Generation," e hatisitsoe koranteng ea machaba ea boemo bo holimo ea Angewise. Mosebetsi o ile oa hatisoa koranteng ea machaba ea Angew. Chem. Int. Mong.
- JACS: Hydrophilic-hydrophobic dual-region COF/graphene hydrogel bakeng sa mouoane oa metsi a photothermal
Mouoane oa metsi a letsatsi ke theknoloji e tšoarellang ea ho hloekisa metsi e ka thusang ho fokotsa khaello ea metsi lefatšeng ka bophara. Leha ho le joalo, theknoloji ena e tobane le mathata a maholo ka lebaka la tšebeliso e phahameng ea matla le sekhahla se tlase sa mouoane oa metsi. Sehlopha sa Prof. Arne Thomas oa Technical University of Berlin, Germany, o tlaleha a covalent organic framework (COF)/graphene dual-region hydrogel e nang le libaka tse peli tsa hydrophilic le hydrophobic boitsebisong bo le bong ka leano le bonolo la ho hōla ha situ. Hydrophilic COF e akaretsa karolo ea sebaka sa hydrophobic graphene. Ka taolo e nepahetseng ea libaka tse peli tsa ho koloba, hydrogel e nyalisitsoeng e bonts'a kotulo e bobebe e sebetsang, ho nosetsa ho ka khonehang, metsi a ntlafalitsoeng, le tlhoko e fokotsehileng ea matla bakeng sa moea oa metsi. Joalo ka mokelikeli oa letsatsi, hydrogel ea libaka tse peli e fihlella sekhahla sa ho hlahisa mouoane ho fihla ho 3.69 kg/m2/h bakeng sa 1 ea mahlaseli a letsatsi (1kw/m2), e ka bapisoang le lisebelisoa tse ling tse tsoetseng pele. Ho feta moo, evaporator ena ea hydrogel e ka sebelisoa ho hlahisa metsi a nooang ho tsoa metsing a leoatle le likhoerekhoere, ho bontša bokhoni ba ho hloekisa metsi. Mosebetsi oa lipatlisiso o ile oa hatisoa koranteng ea JACS e le "A Covalent Organic Framework/Graphene Dual-Region Hydrogel bakeng sa Moloko oa Metsi o Matlafalitsoeng oa Solar", JACS, koranta e phahameng ea machaba.
- Tsoelo-pele ea Saense: Mohaho oa metsi oa lily blade-e bululetsoeng ka katleho e phahameng ea photothermal water evaporator
Lilemong tsa morao tjena, ho hlahisoa ha mouoane oa letsatsi ho bonts'itse monyetla o moholo oa ho finyella katleho e phahameng ea ho fetola matla bakeng sa ho ntša letsoai le ho hloekisa metsi a litšila. Leha ho le joalo, litekanyetso tse phahameng tsa mouoane li ke ke tsa bolokoa ka lebaka la ho bokellana ho bonahalang ho ke keng ha qojoa ha litšila kapa letsoai holim'a sesebelisoa sa letsatsi. Ho senyeha hoa potlakisa ha mahloriso a solute a ntse a eketseha. Ho sebetsana le bothata bona, sehlopha sa Prof. Jia Zhu Univesithing ea Nanjing, se susumelitsoeng ke sebopeho sa makhasi a likhahla tsa metsi, se ile sa etsa moralo oa mekhahlelo e mengata (Metsi-lily-inspired Hierarchical Structure (WHS) photothermal-vapor conversion device, e ka finyellang katleho ea 80% ea ho fetola photothermal ha ho phekoloa 10 wt 30% ea letsoai le metsi a bohlokoa haholo. ho bolela hore matla a ho fetola photothermal ha a fokotsehe haholo nakong ea phekolo ea brine e teteaneng haholo le metsi a litšila ho fihlela mouoane o felile (ke hore, "zero discharge"), 'me bokaholimo bo lula bo hloekile tlas'a sehlooho se reng "Morero o Hlophisitsoeng oa Metsi-Lily-Inspired Hierarchical for Stable and Efficient Solar Evaporation of High Sallinity.
- Nano energy: Molybdenum disulfide bakeng sa mouoane oa metsi a photothermal
Bafuputsi sehlopheng sa Lifeng Wan Setsing sa Deakin University sa Lisebelisoa tsa Frontier ba thehile letoto la disulfide tsa tšepe tse fetohang le di-heterostructures tsa nitride tse nang le naetrojene e ngata bakeng sa ho fetoha ha metsi ka letsatsi ka phetoho e sa fellang ya kristale. Haholo-holo, di-heterostructure tsena tse tswetseng pele tsa 2D di bontsha ho monya ha spectral ho eketsehileng ka har'a mefuta ya infrared le botsitso bo botle ba dikhemikhale ditharollong tse fapaneng, ho kenyeletswa metsi, di-acid le metheo. Habohlokoa le ho feta, ka lebaka la matla a ho monya ha spectral a eketsehileng le tahlehelo e fokotsehileng ya mocheso, sesebediswa sa mocheso wa letsatsi sa MoS2-Mo5N6/ melamine foam (MF) se bontsha sekgahla se phahameng sa ho monya (2.31 kg m-2h-1) le bokgoni ba phetoho (106.6%), tse phahameng ka makgetlo a 1.4 le 4.7 ho feta tsa disebediswa tsa letsatsi tsa MoS2/MF le MF/water, ka ho latellana. Mosebetsi ona o fana ka letoto la di-heterostructures tsa nitride tse nang le naetrojene tse nang le tshebetso e ntle ya photothermal bakeng sa tlhahiso ya metsi ka letsatsi. Mosebetsi ona o phatlalalitsoe ho Nano energy, koranta e holimo ea machaba, e le "Li-heterostructures tse tsoetseng pele tsa 2D-2D tsa dichalcogenides tsa tšepe ea phetoho le li-nitride tse nang le naetrojene e ngata bakeng sa tlhahiso ea metsi a letsatsi".
Solar photothermal evaporation thekenoloji ea metsi e lebelletsoe ho rarolla khaello ea lefats'e ea metsi a hloekileng, se lokelang ho rarolloa hona joale ke ho lokisoa ka theko e tlase ha thepa ea photothermal, ts'ebetso e sebetsang hantle, hammoho le botsitso le ho nkeha ha ts'ebeliso maemong a ts'ebeliso e sebetsang, re lebelletse liphetho tse ling nakong e tlang molemong oa pele oa batho bohle!
Bakeng sa tlhahisoleseling e batsi ka Melamine Foam, ka kopo ikopanye le rona ho [email protected] kapa o re bolelle: +86-28-8411-1861.
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