Mafirimu ekabhoni akadai segraphene zvinhu zvakareruka asi zvakasimba uye zvine mukana wakanaka wekushandisa, asi zvinogona kuoma kugadzira, zvinowanzoda vanhu vakawanda uye nzira dzinotora nguva yakawanda, uye nzira dzacho dzinodhura uye hadzina njodzi kune zvakatipoteredza.
Nekugadzirwa kwehuwandu hwakawanda hwe graphene, kuitira kukunda matambudziko anosangana nawo mukushandisa nzira dziripo dzekubvisa, vaongorori veBen Gurion University of the Negev muIsrael vakagadzira nzira yekubvisa graphene "yakasvibira" inogona kushandiswa munzvimbo dzakasiyana-siyana, kusanganisira optics, electronics, ecology uye biotechnology.
Vaongorori vakashandisa nzira yekubvisa graphene kubva mu striolite. Vakaona kuti mineral hypophyllite inoratidza mikana yakanaka yekugadzira graphene yezvinhu zvakaita se graphene nemaindasitiri.
Huremu hwekabhoni mu hypophibole hunogona kusiyana. Zvichienderana nehuwandu hwekabhoni, hypophibole inogona kuva nemasimba akasiyana ekushandisa. Mamwe marudzi anogona kushandiswa pakuita kuti zvinhu zvishande zvakanaka, nepo mamwe marudzi aine hunhu hwekuuraya utachiona.
Hunhu hwemaumbirwo ehypopyroxene hunosarudza mashandisirwo adzo mukuderedza oxidation, uye inogona zvakare kushandiswa mukugadzira blast furnace uye kugadzira ferroalloy yesimbi yakakandwa (high silicon).
Nekuda kwehunhu hwayo hwepanyama uye hwemakanika, huwandu hwayo hwakawanda, simba rayo rakanaka uye kuramba kwayo kupfeka, hypophyllite ine kugonawo kunyudza zvinhu zvakasiyana-siyana zvechisikigo, saka inogona kushandiswa sesefa. Yakaratidzawo kugona kwayo kubvisa zvidimbu zvefree radical zvinogona kusvibisa manyuko emvura.
Hypopyroxene inoratidza kugona kwayo kuchenesa mvura kubva kubhakitiriya, spores, tumbuyu tudiki uye algae yebhuruu-girini. Nekuda kwesimba rayo guru rekugadzirisa uye kuderedza, magnesia inowanzoshandiswa semushonga wekuchenesa mvura yakasviba.
(a) Kukura kweX13500 uye (b) Mufananidzo weTEM wekuwedzera weX35000 wemuenzaniso wehypophyllite yakapararira. (c) Raman spectrum yehypophyllite yakarapwa uye (d) XPS spectrum yemutsara wekabhoni muhypophyllite spectrum
Kubviswa kweGraphene
Kuti vagadzirire matombo ekutorwa kwegraphene, vaviri ava vakashandisa scanning electron microscope (SEM) kuti vaongorore tsvina yesimbi inorema uye maburi ari musampuli. Vakashandisawo dzimwe nzira dzemurabhoritari kuti vaongorore chimiro chemuviri uye kuvapo kwezvimwe zvicherwa muhypomphibole.
Mushure mekunge ongororo yemuenzaniso yapera uye kugadzirira kwapera, vaongorori vakakwanisa kubvisa graphene kubva mu diorite mushure mekugadzirisa sampuro kubva kuKarelia vachishandisa muchina wekuchenesa wedhijitari we ultrasonic.
Sezvo huwandu hwakawanda hwesamples huchigona kugadziriswa uchishandisa nzira iyi, hapana njodzi yekusvibiswa kwechipiri, uye nzira dzinotevera dzekugadzirisa samples hadzidiwi.
Sezvo hunhu hunoshamisa hwegraphene hwave huchizivikanwa zvikuru munharaunda yakakura yekutsvagisa kwesainzi, nzira dzakawanda dzekugadzira nekugadzira dzakagadziridzwa. Zvisinei, nzira zhinji idzi dzine matanho akawanda kana kuti dzinoda kushandiswa kwemakemikari uye zvinhu zvine simba zvekuoxidation nekuderedza.
Kunyangwe graphene nemamwe mafirimu ekabhoni akaratidza kugona kukuru kushandiswa uye akawana kubudirira kweR&D, maitiro ekushandisa zvinhu izvi achiri kugadzirwa. Chikamu chedambudziko ndechekuita kuti kubviswa kwegraphene kuve nyore, zvinoreva kuti kuwana tekinoroji yekupararira kwayo ndiyo kiyi.
Nzira iyi yekupararira kana kugadzira zvinhu yakaneta uye haina hushamwari kune nharaunda, uye kusimba kwetekinoroji idzi kunogonawo kukonzera zvikanganiso mu graphene inogadzirwa, nokudaro zvichideredza kunaka kwe graphene kunotarisirwa.
Kushandiswa kwe ultrasonic cleaners mukugadzira graphene kunobvisa njodzi nemitengo inokonzerwa nenzira dze multi-step uye chemical. Kushandisa nzira iyi kune natural mineral hypophyllite kwakavhura nzira itsva yekugadzira graphene isingakuvadzi nharaunda.
Nguva yekutumira: Mbudzi-04-2021
