Inombolo Yemodeli | I-KAR-F18 |
Igama Lomkhiqizo | Al-Fum |
Usayizi wezinhlayiya | 5-20 mm |
Indawo ethile engaphezulu | ≥900 ㎡/g |
Usayizi we-Pore | 0.3~1 nm |
I-Al-Fumaric Acid MOF, evame ukubizwa ngokuthi i-Al-FUM, iyi-Metal Organic Framework (MOF) ebonakala ngefomula yayo yamakhemikhali ethi Al(OH)(fum).xH2O, lapho u-x ecishe abe ngu-3.5 futhi i-FUM imele i-ion ye-fumarate. I-Al-FUM yabelana ngesakhiwo se-isoreticular ne-MIL-53(Al)-BDC edumile, ne-BDC emele i-1,4-benzenedicarboxylate. Le MOF yakhiwe ngamaketango e-octahedra yensimbi eyabelana ekhoneni exhunywe ama-fumarate ligands, yakha izimbotshana ezimise okwelozenge ezinohlangothi olulodwa (1D) ezinobukhulu bamahhala obungaba ngu-5.7×6.0 Å2.
Enye yezinzuzo ezibalulekile zama-Al-MOF, okuhlanganisa i-Al-FUM, ukuzinza kwawo okukhethekile kwe-hydrothermal kanye namakhemikhali, okwenza kube lula ukukhiqizwa kwawo okukhulu futhi kuwenze afanelekele uhla lwezinhlelo zokusebenza zezimboni. Ikakhulukazi, zihamba phambili emkhakheni we-liquid adsorption, ukuhlukaniswa, kanye ne-catalysis, lapho ukuzinza kwazo nobuqotho besakhiwo kubaluleke kakhulu.
Ukuzinza kwamanzi okuvelele kwe-Al-FUM kuyimpahla ebalulekile ekukhiqizeni amanzi aphuzwayo. Ingasetshenziselwa ukujiya kanye nezinqubo zokuhlanza ukuze kuqinisekiswe ukuphepha kanye nekhwalithi yamanzi okuphuza. Lesi sici sibaluleke kakhulu ezifundeni lapho ukufinyelela kwamanzi ahlanzekile kukhawulelwe khona noma lapho imithombo yamanzi ingcoliswe khona.
Ngaphezu kwalokho, ukuguqulwa kwe-Al-FUM ibe ulwelwesi olusekelwe ku-MOF kuveza ithuba elijabulisayo lokwandisa ububanzi bokusebenza kwayo. Lawa ma-membrane angasetshenziswa ezinhlelweni zokucwenga nanokuhlunga kanye nokukhipha usawoti emanzini, kube negalelo emzamweni womhlaba wonke wokubhekana nokushoda kwamanzi kanye nokwenza ngcono izinga lamanzi.
Imvelo engenabo ubuthi ye-Al-FUM, ehambisana nokuchichima kwayo kanye nokusebenza kahle kwezindleko, iyibeka njengento ethembisayo yokusetshenziswa kwezokuphepha kokudla. Ukusetshenziswa kwayo kungase kuthuthukise ukuphepha kochungechunge lokuhlinzekwa kokudla ngokunikeza indlela yokuthola nokususa ukungcola okuyingozi.
Ngokuphathelene nezakhiwo ezibonakalayo, i-Al-FUM itholakala njengempushana enhle enosayizi wezinhlayiyana ezingaphansi noma ezilingana no-20 μm. Lo sayizi wezinhlayiyana, uhlanganiswe nendawo ethile engaphezu kuka-800 ㎡/g, unomthelela kumthamo wawo ophezulu wokukhangisa. Usayizi wembotshana ongu-0.4 kuya ku-0.8 nm uvumela ukusefa okunembile kwamangqamuzana kanye nokukhangiswa okukhethiwe, okwenza i-Al-FUM ibe ikhandidethi elifanele lezinqubo ezihlukahlukene zokuhlukanisa.
Kafushane, i-Al-FUM iyi-MOF eguquguqukayo futhi eqinile enezinhlobonhlobo zezinhlelo zokusebenza ezingase zibe khona, kusukela ekuhlanzeni nasekuhlanzweni kwamanzi kuya ekwakhiweni kolwelwesi oluthuthukisiwe lokuhlunga nokukhipha usawoti emanzini. Ubunjalo bayo obungenabo ubuthi, buchichima, futhi obuthengekayo buyenza ibe ikhandidethi eliqinile elingasetshenziswa embonini yokudla, ithuthukisa ukuphepha nekhwalithi. Ngocwaningo nentuthuko eqhubekayo, i-Al-FUM ikulungele ukudlala indima ebalulekile ekubhekaneni nezinselele ezicindezela kakhulu emhlabeni, ikakhulukazi ezindaweni zamanzi kanye nokuphepha kokudla.