E le mokhoa oa moshoelella oa ho sebelisa mehloli ea metsi, ho ntša letsoai letsoai letsatsing ho na le monyetla o moholo oa ho rarolla bothata ba ho haella ha mehloli ea metsi a hloekileng le ho fokotsa khaello ea metsi. Leha ho le joalo, theknoloji e tloaelehileng ea ho ntša letsoai metsing a leoatle hangata e na le mathata a kang tšebeliso e phahameng ea matla, lisebelisoa tse rarahaneng le litšenyehelo tse phahameng.
Lilemong tsa morao tjena, mahlale a macha a ho roala letsoai a thehiloeng ho li-nanomaterials butle-butle a hohetse tlhokomelo ea bafuputsi. Graphene oxide e fokotsitse graphene, joalo ka ntho e ncha ea mahlakore a mabeli, e bonts'itse monyetla o moholo oa ho ntša letsoai metsing a letsatsi.
Ha ho bapisoa le lisebelisoa tsa khale tsa ho roala letsoai, rGO e na le melemo ea conductivity e ntle haholo, sebaka se phahameng se ikhethileng le botsitso bo botle ba lik'hemik'hale, 'me e lebelletsoe ho ntlafatsa ts'ebetso ea ho ntša letsoai le ho fokotsa tšebeliso ea matla.
Leha ho le jwalo, rGO ka boyona e na le mathata a ho kopana le ho beoa ha yona, e leng se fokotsang tshebetso le botsitso ba yona. Ka hona, ho lokisa rGO hodima thepa ya foam ho etsa lesela la melamine foam / rGO composite coating e se e le tsela e sebetsang ya ho ntlafatsa bokgoni ba ho tlosa letswai le metsi le botsitso.
Ka ho fetola holim'a metsi le ho matlafatsa thepa ea thepa ea foam, re ile ra tiisa rGO ka mokhoa o ts'oanang holim'a foam ho eketsa sebaka sa eona sa ho kopana le li-ion tsa letsoai metsing. Ka nako e ts'oanang, sebopeho le botenya ba ho roala ha rGO li laoloa ho ntlafatsa ts'ebetso ea desalination le botsitso.
Ho fumana kutloisiso e tebileng ea mochine oa desalination, re boetse re lokiselitse foam e fokolitsoeng ea graphene oxide (rGO). Foam ea melamine e koahetsoeng ke graphene trioxide e na le porous microstructure le hydrophilicity, e e lumellang hore e be le mongobo o motle, 'me e ka hohela metsi sebakeng sa mouoane, e lumellang metsi ho tlatsoa kapele ha e ntse e qoba ho na ha letsoai.
The interfacial evaporation system ea foam ea graphene oxide-coated melamine foam e ka fihlela boemo bo tsitsitseng ba moea oa mouoane oa 89.6% tlas'a 1kW m−2 mafura a letsatsi. Sistimi ena ea mouoane ea sefahleho e na le matla a holimo a ho fetola mocheso ho tloha ho letsatsi ho ea ho mocheso le botsitso bo botle ba nako e telele, e bonts'ang monyetla oa ho ntša letsoai metsing a leoatle a khoebo.
Hona joale, koluoa ea lefats'e ea matla le khaello ea metsi li fetohile tšokelo e kholo tsoelo-peleng e tsitsitseng ea mokhatlo oa batho. Ho khahlametsa tlhokahalo e ntseng e hola ea matla, nts'etsopele ea mekhoa e fapaneng ea phetolo ea matla e sebetsang hantle le ea tlhoekiso ea metsi e fumane tlhokomelo e ntseng e eketseha.
Theknoloji ea solar interfacial evaporation technology
E le mohloli o tšepisang oa matla a ka nchafatsoang, matla a letsatsi a bakoa ke matla a eona a maholohali, bokahohle, bohloeki, le bokhoni ba ho fetola mesebetsi e mengata. E bonts'itse monyetla oa ho nka sebaka sa libeso tsa khale tse bolokiloeng ke mafura a khale.
Ntle le theknoloji ea letsatsi ea photovoltaic e hlahisang matla a motlakase ka ho toba, theknoloji ea ho fetola matla a letsatsi le mocheso le eona e nka matla a letsatsi le ho e fetola matla a mocheso, a nkoang e le mokhoa o bonolo le o sebetsang oa ho sebelisa matla a letsatsi.
Matla a futhumatsang a fetotsoeng ho tloha matla a letsatsi a ka tsamaisa lits'ebetso tsa bohlokoa tsa indasteri joalo ka liteishene tsa motlakase oa letsatsi, ho tlosa letsoai, sterilization, lisebelisoa tsa ho futhumatsa metsi a letsatsi le lits'ebetso tse ling tse amanang le mocheso. Solar desalination e fana ka tharollo e sebetsang, haholo-holo bakeng sa libaka tse haelloang ke lisebelisoa tsa motheo, hobane e ka ntša metsi a hloekileng metsing a leoatle ntle le ho kenya matla a eketsehileng.
Lilemong tsa morao tjena, theknoloji e tsamaisoang ke letsatsi e tsamaisang mouoane ka har'a letsatsi e fumana mokhoa oa ho fetola mocheso oa letsatsi sebakeng sa mouoane oa metsi 'me e fetohile theknoloji e ncha ea tšebeliso ea matla a letsatsi. Ha ho bapisoa le mokhoa o tloaelehileng oa ho futhumatsa, mekhoa ea ho fetoha mouoane ka har'a sefahleho e bonts'a matla a holimo a mouoane le karabelo e potlakileng ea mocheso 'me ke mokhoa o mong o ka bang teng oa ho ntša letsoai metsing a leoatle.
Ho fihlela hajoale, liphuputso tse ngata li entsoe mabapi le ho ntlafatsa ts'ebetso ea mocheso oa litsamaiso tsa mouoane oa sefahleho. Mokhoa o tloaelehileng oa moea oa letsatsi o tsamaisoang ke letsatsi o na le likarolo tse tharo tsa bohlokoa:
Mokelikeli oa letsatsi o nang le mocheso o phahameng oa letsatsi 'me o fetola mahlaseli a letsatsi hore e be matla a mocheso; insulator e fetisetsang mocheso o fetotsoeng metsing a mangata; le tsela ea phepelo ea metsi e tsoelang pele ho hula metsi ho tloha metsing a mangata ho ea holim'a sesebelisoa sa letsatsi.
Lithutong tse fetileng, bafuputsi ba bangata ba inehetse ho ntlafatseng bokgoni ba phetoho ya letsatsi ho tloha mouoaneng ho ya ho mouoane ka ho kopanya disebediswa tse monyang matla a letsatsi ka tsela e pharaletseng le e monyang matla a letsatsi, ho ntlafatsa moralo wa ditsela tse ntjha tsa phepelo ya metsi, le ho ntlafatsa meaho ya ho kwahela mocheso.
Ho fihlela hajoale, litsamaiso tse tsamaisoang ke letsatsi li 'nile tsa sebelisoa mekhoeng e mengata ea liindasteri, li-solar distillation, sterilization ea solar, solar desalination le tlhahiso ea matla a letsatsi. Ho fihlella ts'ebetso e phahameng ea mouoane oa sistimi, ke habohlokoa ho hlahloba ho kenngoa ha Broadband ho pholletsa le mahlaseli a letsatsi a lisebelisoa tse monyang letsatsi.
Thepa ea letsatsi e monyang matla a letsatsi e ntlafalitsoeng le ho hlahlojoa lits'ebetsong tsa moea tse tsamaisoang ke letsatsi haholo-holo li kenyelletsa lisebelisoa tsa carbonaceous, likaroloana tsa plasmonic le lisebelisoa tse monyang ka mokhoa o ikhethileng. Har'a tsona, lisebelisoa tsa tlhaho tse ntšo le tsa carbonaceous li na le matla a matla a ho fetola mocheso oa letsatsi 'me li loketse li-broadband le li-absorber tse matla haholo tsa letsatsi.
Ka lebaka la tekanyo e phahameng ea ho monya ha letsatsi, theko e tlaase, le botsitso bo botle, ho 'nile ha ithutoa li-absorer tse ngata tse thehiloeng ho carbon-based, ho akarelletsa le carbon nanotubes, graphite, le ho fokotsa graphene oxide. Ka mor'a lilemo tsa nts'etsopele, ts'ebetso ea ts'ebetso ea ho fetola letsatsi ho ea ho mouoane tlas'a motšehare e fihlile ho feta 90%.
Leha ho bile le lintlafatso tse kholo ho nts'etsopele lisebelisoa tse monyang matla a letsatsi le ho rala meaho ea mouoane ea sefahleho, lisebelisoa tse ngata tse tlalehiloeng tsa ho tlosa letsoai holim'a letsatsi li bile teng ka lebaka la ho bokellana ha letsoai holim'a mouoane nakong ea ts'ebetso ea ho ntša letsoai. Letsoai le bokelletsoeng le thibela ho monya ha letsatsi le ho thibela mouoane o porous, e leng se bakang ts'ebetso e tlase ea matla a letsatsi ho ea ho mocheso le ts'ebetso e mpe ea mouoane.
Mekhoa e tloaelehileng ea 'mele e kang maqhubu a ultrasonic le ho qoelisoa metsing ka kakaretso e sebelisoa ho tlosa letsoai le bokelletsoeng, empa mekhoa ena e ka baka tšenyo ea sebopeho sa mouoane habonolo.
Ho fokotsa ho bokellana ha letsoai litsamaisong tsa mouoane oa sefahleho, lithuto tse ngata li tsepamisitse maikutlo ho nts'etsopele ea mouoane oa hydrophobic. Leha ho le joalo, li-evaporator tsa hydrophobic li fokotsa phepelo ea metsi sebakeng se kaholimo, ka hona li fokotsa ts'ebetso ea mouoane ea sistimi. Tsela e 'ngoe ea ho rarolla bothata bona ke ho sebelisa evaporator ea hydrophilic, e tsamaisang letsoai le feteletseng ho tloha holimo ho ea metsing a mangata.
Ho fihlela joale, liphuputso tse ngata li tsepamisitse maikutlo ho rala li-evaporator tsa hydrophilic, tse kang li-membrane tsa lesela la hydrophilic cellulose, li-membrane tsa hydrophilic tse thehiloeng pampiring, le li-evaporator tse bululetsoeng ke bio. Empa ho theha tsamaiso ea nako e telele e tsitsitseng le e sebetsang hantle haholo e tsamaisoang ke letsatsi e fetoha mouoane ka har'a sefahleho e ntse e le phephetso e kholo.
Thutong ena, re bonts'a foam e hananang le letsoai, e sebetsang hantle haholo e monyang letsatsi le e arabelang ka potlako mocheso e fokotsehileng ea graphene oxide (rGO) bakeng sa ho ntša letsoai ka har'a letsatsi tlas'a khanya ea letsatsi e tlaase ea fluorescence.
Sebopehong se secha se nang le masoba, foam ea melamine e phelang metsing (MF) e khethiloe e le motheo, e seng feela e atolosang sebaka sa bokaholimo bakeng sa ho monngoa ke letsatsi empa hape e ntlafatsa ho hasana ho hongata.
Bokaholimo ba hydrophilicity le porosity ea foam e fokotsehileng ea graphene oxide-coated melamine foam e fana ka metsi a lekaneng le ho kopanngoa ha sebaka sa phetoho ea mocheso oa letsatsi, hammoho le ho tlatsa metsi ka potlako, ha ho ntse ho qoba ho bokella letsoai.
Ho nka monyetla ka ts'ebetso e phahameng ea foam e fokotsehileng ea graphene oxide-coated melamine foam, sistimi e sebelisang matla a letsatsi e khona ho fetolela sekhahla sa solar-to-steam sa 89.6%.
Ho feta moo, ka ho kopanya foam e fokotsehileng ea graphene oxide-coated melamine ho matla a letsatsi a khoebo, re ile ra qapa le ho etsa sesebelisoa sa ho ntša letsoai metsing a leoatle se tsamaisoang ke letsatsi se nang le matla a ho fetolela letsatsi ho ea ho metsi a 56.4% motšehare. Ka lebaka la desalination ea letsatsi, metsi a hloekileng a bokelloang ke a tlhokahalo ea boleng bo nooang.
Ka ts'ebetso e phahameng ea mouoane le ho fokotseha ha lisebelisoa tsa ho fetola mocheso ho tloha ho letsatsi ho ea ho mocheso, mokhoa ona oa ho ntša letsoai metsing a leoatle a tsamaisoang ke letsatsi o fana ka menyetla e pharaletseng ea ts'ebeliso ea ts'ebeliso e sebetsang ea ho ntša letsoai metsing a leoatle.
Scalability ea solar desalination mocheso phetiso thepa
Sistimi ea mouoane ea sefahleho e thehiloeng holim'a foam ea melamine e koahetsoeng ke graphene oxide. Ter graphene oxide-coated melamine foam e bohareng 'me e phuthetsoe ke lera la polyethylene (PE) foam ka ntle ho aha "self-bubble interfacial evaporation system".
Foam ea melamine e koahetsoeng ka tellurium-reduced graphene oxide e sebelisetsoa ho monya mahlaseli a letsatsi ka potlako, ho fetola matla a letsatsi hore e be mocheso, le ho hlahisa matla a susumetsang bakeng sa mouoane oa sefahleho. Ka lehlakoreng le leng, foam ea hydrophilic e fokotsehileng ea graphene oxide-coated melamine foam e ka lula e hulela brine sebakeng sa mouoane.
Sebopeho sa porous sa graphene trioxide-coated melamine foam se lumella mouoane o hlahisoang hore o kene tikolohong, o khothalletsa ho ts'oaroa ha khanya ea letsatsi 'me kahoo o eketsa bokhoni ba ho fetola mocheso oa letsatsi ho ea ho mocheso. Foam e fokotsehileng ea graphene oxide-coated melamine foam e na le masoba ebile e na le hydrophilic, e e lumellang ho hula metsi ka har'a sebopeho sa mouoane se hlalositsoeng ka holimo ha ka nako e le 'ngoe e phunya letsoai le lengata hape ka metsing a leoatle a mangata.
Nakong ea ts'ebetso ea mouoane, mahloriso a letsoai foam a phahame ho feta mahloriso a metsi a leoatle a ka tlase. Liphetoho mahlorisong li etsa hore letsoai le qhalane ho ea metsing a mangata. Ho phaella moo, foam ea polyethylene e potolohileng ha e fokotse feela foam ea melamine e koahetsoeng ke graphene oxide , empa hape e bokellana ka tlhaho holim'a metsi, e thibela tahlehelo ea mocheso e bakoang ke metsi a letsoai a potolohileng.
Sistimi ea mouoane ea sefahleho e ka sebetsa ka mokhoa o tsoelang pele le ka bokhabane holim'a metsi ntle le tlhoko ea meralo e rarahaneng ea kaho. Ho feta moo, kaha mouoane o hlaha sehokelong sa mokelikeli oa khase, sistimi ea mouoane ea sefahleho e ka itsamaela e ikemela ha sebopeho se theoha.
Tellurium-e fokotsehileng graphene oxide-coated melamine foam ke karolo ea bohlokoa ea tsamaiso ea motsoako oa mouoane. Foam ea melamine e ile ea qoelisoa ka har'a graphene oxide colloidal suspension ho lokisa foam e fokotsehileng ea graphene oxide-coated melamine foam, ebe graphene oxide ea fokotsoa hore e be graphene oxide e fokotsehileng e sebelisa mokhoa oa hydrothermal.
Foam e fokotsehileng ea graphene oxide-coated melamine foam e bophara ba 3.5 cm le botenya ba 1.6 cm e bonolo ho etsoa mme 'mala oa eona o botsho bo tebileng.
Bokhopo ba bokaholimo ba thepa e phokolitsoeng ea foam ea graphene oxide-coated melamine foam e bonoang ho sebelisoa maekorosekoupo ea mahlakore a mararo e bonts'itse phapang ea bolelele ba ho feta 300 μm. Sebopeho sa bokaholimo ba likarolo tsa phetoho ea mocheso oa letsatsi se hlahisoa haholo ke sebopeho sa porous ea foam ea melamine, 'me graphene oxide e fetotsoeng e boetse e eketsa bokaholimo ba bokaholimo.
Bokhopo ba bokaholimo bo holisa sebaka sa ho monya ha letsatsi ha bo ntse bo eketsa ho hasana ka makhetlo a mangata ha khanya ea letsatsi, ka hona ho ntlafatsa ts'ebetso e nepahetseng ea ho fetola mocheso oa letsatsi ho ea ho mocheso. Microstructure ea foam e lokisitsoeng ea melamine ka magnification a fapaneng. Sebaka sa foam sa graphene oxide-coated melamine foam se bonts'a sebopeho sa marang-rang se sosobaneng le se hokahaneng.
Boholo ba pore ea foam ea melamine e koahetsoeng ke rGO e pakeng tsa 20 le 40 μm. Sebopeho sa pore se bulehileng le bokaholimo bo sosobaneng bo thusa ho beoa ha graphene oxide. Foam e fokotsehileng ea graphene oxide-coated melamine foam e na le metsi a matle a mongobo ka lebaka la hydrophilicity ea porous melamine foam.
Hang ha lerotholi la metsi le ama bokaholimo ba foam ea melamine e phokolitsoeng ea graphene oxide-coated, e kenella ka botlalo nakong ea metsotsoana e 0.5. Sebaka sa hydrophilic sa likarolo tse fokotsehileng tsa graphene oxide li ka tataisa metsi ka potlako ka har'a sebopeho sa porous. The porosity ea phokotseho ea graphene oxide-coated melamine foam e ile ea khethoa ka ho bapisa liphetoho tse ngata pele le ka mor'a ho monngoa ha metsi.
Porosity ea graphene oxide-coated melamine foam e ka fihla ho 85.55%. Ho monya matla a letsatsi ka phokotseho ea melamine foam e nang le graphene oxide-coated melamine e ama ka kotloloho ts'ebetso ea ho fetola mocheso oa letsatsi ho ea ho mocheso oa sistimi. Ho lekola khanyetso ea letsoai, foam e fokolitsoeng ea graphene oxide-coated melamine e kentsoe ka har'a sodium chloride solution (3.5 wt%).
Joale 3 g ea sodium chloride e tiileng e ile ea behoa ka holim'a metsi 'me foam ea melamine e koahetsoeng ke Tergo e ile ea behoa ka matla a letsatsi a 1 kW m-2. Palo ea letsoai le tiileng le qhibiliha butle-butle ka mor'a metsotso e 120.
Ha khanya ea letsatsi e chabela holim'a foam ea melamine e koahetsoeng ka rGO , mocheso oa foam ea melamine e koahetsoeng ka rGO o nyoloha ka potlako ka metsotso e seng mekae 'me o lula ho 35°C nakong eohle ea ts'ebetso ea mouoane. Kaha ho qhibiliha ha letsoai ho itšetlehile ka mocheso, ha mocheso o phahame, letsoai le qhibiliha kapele 'me ka hona tšepe ea letsoai e ka qhibilihisoa hape metsing a holim'a metsi.
Ka foam e fokotsehileng ea graphene oxide-coated melamine, e nang le li-pores tse ngata tse nang le matla a phahameng a ho monya metsi a ka fanang ka phepelo e tsoelang pele ea metsi ho ea holimo, matsoai a ka tloha holimo holimo ho ea tlase ho metsi. Liphetoho tsa mocheso li lebisa phetohong ea letsoai lipakeng tsa bokaholimo ba mouoane le 'mele.
E le ho fumana marang-rang a marang-rang le ho monya matla a letsatsi, foam ea melamine e ile ea fetoloa ka porous hydrophilic melamine foam, kahoo e eketsa sebaka sa ho monya ha letsatsi le ho eketsa ho hasana hangata.
The solar interfacial evaporation system e thehiloeng holim'a melamine foam e koahetsoeng ke rGO e bonts'a karabelo e potlakileng ea mocheso maemong a matla a letsatsi a 1 kW m-2, e fihlela boemo bo tsitsitseng ba phetoho ea mocheso oa letsatsi oa 89.6%.
Qetellong, re ile ra kopanya evaporator ea foam ea foam ea graphene oxide-coated melamine foam ho setsi sa letsatsi, se ka hlahisang metsi a nooang a 56.4% ka ho bokella letsoai ho 1 kW m−2.
Re nahana hore sesebelisoa sena sa ho ntša letsoai sefahlehong se tsamaisoang ke letsatsi se ka sebelisoa lihlekehlekeng tse ka thōko kapa maoatleng ho bokella metsi a nooang a tsoang metsing a mangata a leoatle kapa mehloling e meng ea metsi a letsoai.
fihlela qeto e
Desalination rGO-coated melamine foam, e le theknoloji e ncha le e sebetsang ea ho ntša letsoai letsoai, e na le menyetla e meholo le menyetla ea ts'ebeliso. E ke ke ea fana feela ka mehloli e tšepahalang ea metsi a hloekileng bakeng sa libaka tse haelloang ke metsi, empa hape e fokotsa ho itšetleha ka matla a setso, ho fokotsa tšebeliso ea matla le tšilafalo ea tikoloho.
Liphetho tsa phuputso ena li tla kenya letsoho tabeng ea ho rarolla bothata ba khaello ea metsi a hloekileng lefatšeng ka bophara le ho khothalletsa ho phethahala ha nts'etsopele ea moshoelella.
Bakeng sa tlhahisoleseling e batsi ka SINOYQX Melamine Foam, ka kopo ikopanye le rona ho [email protected] kapa o re bolelle: +86-28-8411-1861.
Lits'oants'o tse ling le litemana li hlahisoa hape ho tsoa Marang-rang, 'me litokelo tsa molao ke tsa mongoli oa pele. Haeba ho na le tlolo ea molao, ka kopo ikopanye le rona ho hlakola.