Makanema a kaboni monga graphene ndi opepuka kwambiri koma olimba kwambiri okhala ndi mphamvu yogwiritsira ntchito bwino, koma amatha kukhala ovuta kupanga, nthawi zambiri amafunikira anthu ambiri komanso njira zowonongera nthawi, ndipo njira zake ndi zodula komanso zosawononga chilengedwe.
Pogwiritsa ntchito graphene yambiri, pofuna kuthana ndi mavuto omwe amakumana nawo pokhazikitsa njira zamakono zochotsera zinthu, ofufuza ku Ben Gurion University of the Negev ku Israel apanga njira "yobiriwira" yochotsera zinthu ya graphene yomwe ingagwiritsidwe ntchito m'magawo osiyanasiyana, kuphatikizapo kuwala, zamagetsi, zachilengedwe ndi sayansi ya zamoyo.
Ofufuza anagwiritsa ntchito njira yofalitsira zinthu pogwiritsa ntchito makina kuti atulutse graphene kuchokera ku striolite yachilengedwe. Anapeza kuti mineral hypophyllite ikuwonetsa mwayi wabwino wopanga graphene yofanana ndi graphene m'mafakitale.
Kuchuluka kwa mpweya mu hypophibole kungakhale kosiyana. Malinga ndi kuchuluka kwa mpweya mu hypophibole, hypophibole ikhoza kukhala ndi mphamvu zosiyanasiyana zogwiritsira ntchito. Mitundu ina ingagwiritsidwe ntchito pa mphamvu zake zoyambitsa, pomwe mitundu ina ili ndi mphamvu zopha mabakiteriya.
Kapangidwe ka hypopyroxene kamatsimikizira momwe imagwiritsidwira ntchito pochepetsa okosijeni, ndipo ingagwiritsidwenso ntchito popanga ng'anjo yophulika komanso kupanga chitsulo chopangidwa ndi ferroalloy (chopangidwa ndi silicon yambiri).
Chifukwa cha mphamvu zake zakuthupi ndi zamakaniko, kuchuluka kwake kwakukulu, mphamvu zake zabwino komanso kukana kuwonongeka, hypophyllite imathanso kunyamula zinthu zosiyanasiyana zachilengedwe, kotero ingagwiritsidwe ntchito ngati fyuluta. Yawonetsanso kuthekera kochotsa tinthu ta free radical tomwe tingadetse madzi.
Hypopyroxene imasonyeza kuthekera koyeretsa madzi ndi kuyeretsa mabakiteriya, spores, tizilombo toyambitsa matenda tosavuta komanso algae wobiriwira. Chifukwa cha mphamvu zake zochepetsera komanso zochepetsera, magnesia nthawi zambiri imagwiritsidwa ntchito ngati chokometsera madzi otayira.
(a) Kukulitsa kwa X13500 ndi (b) Chithunzi cha TEM cha kukula kwa X35000 cha chitsanzo cha hypophyllite chomwazikana. (c) Raman spectrum ya hypophyllite yochiritsidwa ndi (d) XPS spectrum ya mzere wa kaboni mu hypophyllite spectrum
Kuchotsa Graphene
Pofuna kukonzekera miyala kuti ichotsedwe mu graphene, awiriwa adagwiritsa ntchito scanning electron microscope (SEM) kuti aone kuipitsidwa kwa zitsulo zolemera komanso ma porosity m'zitsanzozo. Adagwiritsanso ntchito njira zina za labotale kuti aone kapangidwe kake komanso kupezeka kwa mchere wina mu hypophibole.
Pambuyo poti kusanthula ndi kukonzekera zitsanzo kumalizidwa, ofufuzawo adatha kuchotsa graphene kuchokera ku diorite atakonza chitsanzocho kuchokera ku Karelia pogwiritsa ntchito makina oyeretsera a digito.
Popeza zitsanzo zambiri zitha kukonzedwa pogwiritsa ntchito njira iyi, palibe chiopsezo cha kuipitsidwa kwina, ndipo njira zotsatizana zokonzera zitsanzo sizikufunika.
Popeza makhalidwe odabwitsa a graphene adziwika kwambiri m'gulu lonse la ofufuza asayansi, njira zambiri zopangira ndi kupanga zapangidwa. Komabe, njira zambirizi ndi njira zambiri kapena zimafuna kugwiritsa ntchito mankhwala ndi zinthu zamphamvu zopangitsa kuti zisawonongeke komanso kuchepetsa.
Ngakhale kuti graphene ndi mafilimu ena a kaboni awonetsa kuthekera kwakukulu kogwiritsa ntchito ndipo apambana pa kafukufuku ndi chitukuko, njira zogwiritsira ntchito zipangizozi zikupangidwabe. Gawo lina la vuto ndi kupanga kuchotsa graphene kukhala kotsika mtengo, zomwe zikutanthauza kuti kupeza ukadaulo woyenera wogawa ndiye chinsinsi.
Njira yofalitsira kapena kupanga zinthu iyi ndi yovuta komanso yowononga chilengedwe, ndipo mphamvu ya ukadaulo uwu ingayambitsenso zolakwika mu graphene yopangidwa, motero kuchepetsa khalidwe labwino kwambiri la graphene.
Kugwiritsa ntchito zotsukira za ultrasound popanga graphene kumachotsa zoopsa ndi ndalama zomwe zimagwirizanitsidwa ndi njira zambiri komanso zamakemikolo. Kugwiritsa ntchito njira imeneyi pa hypophyllite yachilengedwe ya mchere kunatsegula njira yatsopano yopangira graphene yosawononga chilengedwe.
Nthawi yotumizira: Novembala-04-2021
