Ụkọ mmiri dị ọcha bụ ihe ịma aka na-esiwanye ike na mmepe obodo. A na-akọ na 29% nke ndị bi n'ụwa niile enweghị mmiri ọṅụṅụ dị ọcha, na ọchịchọ maka mmiri dị ọcha ka na-abawanye n'ihi mmụba ọnụ ọgụgụ mmadụ na nsogbu gburugburu ebe obibi. Mmiri dị ọcha jikọtara ya na ịdị ọcha dị mkpa karịsịa n'ihe gbasara ntiwapụ nke ọrịa coronavirus ugbu a (Neocoronavirus na oyi baa). A na-ahụta evaporation mmiri nke sitere na anyanwụ dị ka otu n'ime teknụzụ kachasị mma maka imepụta mmiri dị ọcha site na mmiri mmiri na mmiri mkpofu site na iji ìhè anyanwụ dị ka naanị ntinye ike. Nkà na ụzụ na-adabere kpamkpam na anyanwụ absorbers, nke na-eme dị ka evaporators iji tọghata anyanwụ ike n'ime okpomọkụ na-emepụta uzuoku. Iji nweta oke mmiri evaporation ọnụego na anyanwụ okpomọkụ ntụgharị arụmọrụ, ezigbo ihe kwesịrị inwe a dịgasị iche iche nke absorbance na-arụ ọrụ nke ọma nagide a nnukwu akụkụ nke anyanwụ ụdịdị dị iche iche, ala thermal conductivity iji kwụsị okpomọkụ ọnwụ, na atọ akụkụ (3D) porous ọwa maka ịrụ ọrụ nke ọma mmiri njem. Ka ọ dị ugbu a, ndị ọkà mmụta sayensị emepụtala ihe dị iche iche nke photothermal dabere na carbon (dịka ọmụmaatụ, graphene ma ọ bụ carbon nanotubes), polymers, metals na metal oxides na ngwakọ ha, wdg.
Ndị ọkà mmụta sayensị na-agbasi mbọ ike ịchọpụta na ime ọtụtụ ihe ịga nke ọma n'afọ ndị na-adịbeghị anya, ya mere, ka anyị mụta n'ọtụtụ akwụkwọ akụkọ gbasara ọganihu nyocha na ọgbọ mmiri dị ọcha nke photothermal n'afọ ndị na-adịbeghị anya.
- Nkwukọrịta okike: Akwụkwọ osisi na-akpali ike anyanwụ na-asachapụ mmiri dị elu
Akwụkwọ osisi vaskụla sitere n'okike na-adabere na ọdịiche dị na nrụgide osmotic, mmịpụta na mwepụta iji mepụta ọtụtụ mmiri dị ọcha, nke ìhè anyanwụ na-akwado. Site n'ike mmụọ nsọ nke a, ndị nchọpụta na otu Chun Li na Mahadum Qinghua akọpụtala ihe nhicha nke anyanwụ na-akwalite iji mee ka mmiri dị ọcha ma mepụta nke ọma. Ihe nhicha a nke anyanwụ na-akwalite nwere hydrogel poly(N-isopropylacrylamide) (PN) nke na-anabata okpomọkụ na-adịghị mma nke etinyere na azụ melamine foam superhydrophilic ma kpuchie ya na akpụkpọ nzacha graphene (PG) PNIPAm-modified n'èzí. Ihe ngosi molekul na nsonaazụ nnwale gosiri na ọdịdị superhydrophilic nke azụ melamine siri ike mere ka ọnụego ọzịza/mwepụ nke ihe nhicha PNPG-F dịkwuo ngwa ngwa. N'okpuru otu ọkụ anyanwụ ahụ, usoro a nke ejiri ezi uche mee nyere nchịkọta 4.2 kg/m2/h na mwepụ ion > 99% maka otu PNPG-F site na nri brine site na mmetụta synergistic nke ikuku na mgbakwunye ntapụ. Onye dere akwụkwọ a na-eche echiche maka ojiji dị ukwuu maka usoro a nke na-eji anyanwụ eme ihe nke ọma n'ọtụtụ ngwa ọgwụgwọ mmiri. E bipụtara ọmụmụ ihe a dị ka akwụkwọ akpọrọ "Akwụkwọ osisi na-eme ka anyanwụ dị ọcha nke na-eji akwụkwọ osisi emepụta maka mmepụta mmiri dị ọcha nke ọma" na akwụkwọ akụkọ Nature communications.
- Ọganihu Sayensị: Netwọk polymer hydratable nke ukwuu nke hydrogels na-anata ọkụ maka ịsacha mmiri anyanwụ.
Mmiri mmiri anwụ maka ịsacha mmiri bụ nkà na ụzụ na-ekwe nkwa maka mmepụta mmiri ọhụrụ. Otú ọ dị, ọgbọ vapor nke anyanwụ na-eme ka ike dị ike, na-ebute mmepụta mmiri dị ala n'okpuru ìhè ehihie. Ya mere, ọ dị nnukwu mkpa ịmepụta ihe ọhụrụ nke nwere ike ibelata ume ike maka ikpochapụ mmiri ma mee ka mmiri dị ọcha nke anyanwụ. Otu Prọfesọ Guihua Yu na Austin, Texas, USA, kọrọ otu hydrogel nke na-amịpụta ìhè nke ukwuu (h-LAH) nke mejupụtara mmanya polyvinyl na chitosan dị ka ọkpụkpụ hydration na polypyrrole dị ka ihe na-ekpo ọkụ, nke nwere ike iji obere ume (<50% nke olu mmiri) wepụ mmiri. E gosipụtara na ịbawanye ikike hydration nke h-LAH nwere ike ịgbanwe ọnọdụ mmiri ma mee ka mmiri rụọ ọrụ nke ọma, si otú a na-eme ka mmiri na-ekpo ọkụ. h-LAH mụbara mmepụta vapor anyanwụ na ọnụego ndekọ nke ~ 3.6 kg / m2 / h na 1 anyanwụ. evaporation mmiri nke anyanwụ dabere na h-LAH gosikwara ịdịte aka ogologo oge yana ihe mgbochi mgbochi megide mmetọ ionic dị mgbagwoju anya. E bipụtara nyocha ahụ n'akwụkwọ isiokwu ya bụ "Ihe ọkụkụ na-ahapụ mmụọ nsọ nke ìhè anyanwụ na-eme ka ọ dị ọcha maka mmepụta mmiri dị ọcha dị elu" na Science subjournal Science Advances.
- Angew: Ihe COF nwere superhydrophilicity yana mmịnye ọkụ dị ogologo maka ikuku mmiri photothermal.
Hydrophobicity dị n'ime ya na mmịnye ọkụ dị ntakịrị nke porous organic polymers, karịsịa na mpaghara infrared dị nso (NIR), bụ ihe mgbochi abụọ na-egbochi ngwa ha na ọgbọ uzuoku anyanwụ (SSG). Ndị na-eme nchọpụta na otu Xiaoli Yan na Mahadum Jilin ewepụtala usoro ihe ọkụkụ na-emepụta ihe (COF) nke dabeere na 1,4,5,8 tetrakis (phenylamino) anthracene-9,10-dione (TPAD) (TPAD-COF), nke e ji mara superhydrophilicity na nnukwu absorption nke na-ekpuchi SSG site na mpaghara NIR niile. TPAD-COF, dị ka ihe ngbanwe nke photothermal na-arụ ọrụ nke ọma na-enweghị ihe mgbakwunye ọ bụla, na-egosipụta ezigbo evaporation mmiri nke 1.42 kg / m2 / h ma nweta oke ike ntụgharị ike nke 94% n'okpuru otu irradiation nke anyanwụ. Enwetara mgbatị ọzọ nke nsonye ọkụ COF dabere na TPAD site na ngbanwe nke mkpụrụ ndụ BF2 chepụtara echedoro. Nnwale njikwa usoro na nyocha na-akwado na hydrophilicity nke ihe ngbanwe nke fotothermal na-arụ ọrụ kachasị na COF nke dabeere na TPAD ugbu a na-eji maka ikpochapụ mmiri ọkụ. Ọrụ nyocha ahụ, nke akpọrọ "Superhydrophilic2D Covalent Organic Frameworks dị ka Broadband Absorbers for Efficient Solar Steam Generation," ka ebipụtara n'akwụkwọ akụkọ mba ụwa kachasị elu Angewise. E bipụtara ọrụ ahụ n'akwụkwọ akụkọ mba ụwa kacha elu Angew. Chem. Int. Ed.
- JACS: Hydrophilic-hydrophobic dual-regional COF/graphene hydrogel maka ikpochapụ mmiri ọkụ.
Mmiri mmiri nke anyanwụ bụ teknụzụ ọgwụgwọ mmiri na-adịgide adịgide nke nwere ike inye aka belata ụkọ mmiri zuru ụwa ọnụ. Otú ọ dị, nkà na ụzụ a na-eche ihe ịma aka dị ukwuu ihu n'ihi oke ike oriri na obere ikuku evaporation nke mmiri evaporation. Otu Prọfesọ Arne Thomas na Technical University of Berlin, Germany, na-akọ otu covalent organic framework (COF)/graphene dual-region hydrogel nke nwere ma hydrophilic na hydrophobic mpaghara n'otu ihe site na mfe na ọnọdụ uto atụmatụ. COF hydrophilic na-ekpuchi akụkụ nke mpaghara graphene hydrophobic. Site na njikwa nke ọma nke mpaghara mmiri mmiri abụọ ahụ, ngwakọ hydrogel na-egosi iwepụta ọkụ dị irè, ike wetability, nke kachasị mma nke mmiri, yana belata mkpa ike nke ikuku mmiri. Dị ka ihe na-ekpo ọkụ nke anyanwụ, hydrogel nke mpaghara abụọ na-enweta ọnụọgụ vapor nke ruru 3.69 kg / m2 / h maka 1 irradiation anyanwụ (1kw / m2), nke yiri ihe ndị ọzọ dị elu. Tụkwasị na nke a, a pụrụ iji evaporator hydrogel a na-emepụta mmiri a na-eri eri site na mmiri mmiri na nsị, na-egosipụta ike nke ọgwụgwọ mmiri. E bipụtara ọrụ nyocha ahụ n'akwụkwọ akụkọ JACS dị ka "A Covalent Organic Framework/Graphene Dual-Region Hydrogel for Enhanced Solar-Driven Water Generation", JACS, akwụkwọ akụkọ mba ụwa kachasị elu.
- Ọganihu Sayensị: Nhazi agụba mmiri lily na-eme ka ikuku mmiri na-ekpo ọkụ na-arụ ọrụ nke ọma dị elu.
N'afọ ndị na-adịbeghị anya, ọgbọ vapor anyanwụ nke ihu ihu egosiwo nnukwu ikike iji nweta nrụpụta ike dị elu maka ịsa mmiri na ọgwụgwọ mmiri. Otú ọ dị, enweghi ike ịnọgide na-enwe ọnụ ọgụgụ dị elu nke evaporation n'ihi nchịkọta nke ihe na-adịghị mma ma ọ bụ nnu na-ekpuchi anyanwụ. A na-emeziwanye mmebi iwu ka mkpokọta solute na-abawanye. Iji dozie nsogbu a, Prọfesọ Jia Zhu otu na Nanjing University, nke sitere n'ike mmụọ nsọ na Ọdịdị nke mmiri lily epupụta, haziri a multi-stage Ọdịdị (Water-lily-inspired Hierarchical Structure (WHS) photothermal-vapor ntụgharị ngwaọrụ, nke nwere ike nweta 80% photothermal ntughari arụmọrụ mgbe a na-emeso 10 wt% nke mmiri n'efu na-ekwu banyere oké mkpofu mmiri 30.wt. Ntughari nke photothermal adịghị ebelata nke ukwuu n'oge ọgwụgwọ nke brine na-etinye uche nke ukwuu na mmiri mkpofu ruo mgbe evaporation zuru ezu (ie, "efu efu"), na elu na-anọgide na-adị ọcha.
- Ike Nano: Molybdenum disulfide maka ikpochapu mmiri nke photothermal
Ndị nchọpụta na otu Lifeng Wan na Deakin University's Institute for Frontier Materials emepụtala usoro mgbanwe metal disulfide na nitride bara ụba na nitrogen maka ikuku mmiri site na mgbanwe kristal nkebi. Karịsịa, heterostructures 2D ndị a dị elu na-egosipụta mmụba spectral na oke infrared na nkwụsi ike kemịkalụ dị mma na ngwọta dị iche iche, gụnyere mmiri, asịd na ntọala. Ihe kacha mkpa bụ na n'ihi mmụba nke ike nnabata spectral na mbelata okpomọkụ, ngwaọrụ okpomọkụ anyanwụ MoS2-Mo5N6/ melamine foam (MF) na-egosipụta oke ikuku mmiri (2.31 kg m-2h-1) na arụmọrụ ntụgharị (106.6%), nke dị okpukpu 1.4 na 4.7 karịa nke ngwaọrụ anyanwụ MoS2/MF na MF/water, n'otu n'otu. Ọrụ a na-enye usoro heterostructures 2D-2D TMDs-nitrogen-rich heterostructures nwere arụmọrụ photothermal dị mma maka mmepụta mmiri anyanwụ. E bipụtara ọrụ a na Nano energy, akwụkwọ akụkọ mba ụwa kachasị elu, dị ka "Advanced 2D-2D heterostructures of transition metal dichalcogenides and nitrogen-rich nitrides for solar water production".
A na-atụ anya na teknụzụ evaporation mmiri na-ekpo ọkụ nke anyanwụ ga-edozi ụkọ mmiri dị ọcha zuru ụwa ọnụ, ihe a ga-edozi ugbu a bụ nkwadebe dị ọnụ ala nke ihe ọkụkụ fotothermal, arụmọrụ dị elu, yana nkwụsi ike na obere ihe eji eme ihe na gburugburu ngwa ngwa, na-atụ anya ka ọ pụta ìhè n'ọdịnihu maka abamuru mbụ nke ihe a kpọrọ mmadụ!
Maka ozi ndị ọzọ gbasara Melamine Foam, biko kpọtụrụ anyị na [email protected] ma ọ bụ kpọọ anyị oku: +86-28-8411-1861.
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