KAWANISH, Japan, Mbudzi 15, 2022 /PRNewswire/ — Matambudziko ezvakatipoteredza akadai sekushanduka kwemamiriro ekunze, kupera kwezviwanikwa, kutsakatika kwemarudzi, kusvibiswa kwepurasitiki uye kuparadzwa kwemasango kunokonzerwa nekuwedzera kwevanhu pasi rose kuri kuwedzera.
Kabhoni dhayokisaidhi (CO2) imhepo inokonzera greenhouse uye chimwe chezvikonzero zvikuru zvekuchinja kwemamiriro ekunze. Panyaya iyi, nzira inonzi "artificial photosynthesis (photoreduction of carbon dioxide)" inogona kugadzira zvinhu zvemafuta nemakemikari kubva kucarbon dioxide, mvura nesimba rezuva, sezvinoita zvirimwa. Panguva imwe chete, inoderedza kuburitswa kweCO2, iyo inoshandiswa senzvimbo yekudyara simba nekugadzirwa kwemakemikari. Nokudaro, photosynthesis yekugadzira inozivikanwa seimwe yetekinoroji yepamusoro-soro yegirini.
MOFs (metal-organic frameworks) zvinhu zvine maburi akawanda zvinoumbwa nesimbi dzisina kugadzirwa uye organic linkers. Zvinogona kudzorwa padanho remamorekuru mu nano range ine nzvimbo yakakura pamusoro. Nekuda kwehunhu uhwu, MOFs dzinogona kushandiswa mukuchengetedza gasi, kupatsanura, kunyudza simbi, catalysis, kuendesa mishonga, kurapa mvura, sensors, electrodes, filters, nezvimwewo. MOFs dzichangobva kuwanikwa kuti dzine kugona kubata CO2, iyo inogona kushandiswa kugadzira zvinhu zvakasikwa kuburikidza neCO2 photoreduction, inozivikanwawo se artificial photosynthesis.
Kune rumwe rutivi, madotsi eQuantum zvinhu zvidiki-diki (0.5–9 nanometers) zvine hunhu hwe optical hunotevedzera mitemo ye quantum chemistry uye quantum mechanics. Anodaidzwa kuti "maatomu ekugadzira kana mamorekuru ekugadzira" nekuti dotsi rega rega reQuantum rine maatomu kana mamorekuru mashoma kusvika kuzviuru. Muhukuru uhwu, huwandu hwesimba remaerekitironi hahuchaenderere mberi uye hunoparadzaniswa nekuda kwechiitiko chepanyama chinozivikanwa se quantum confinement effect. Muchiitiko ichi, kureba kwechiedza chinoburitswa kunoenderana nehukuru hwedotsi reQuantum. Aya madotsi eQuantum anogonawo kushandiswa mu artificial photosynthesis nekuda kwekugona kwawo kupinza chiedza zvakanyanya, kugona kugadzira exciton yakawanda uye nzvimbo yakakura.
Zvese MOFs nema quantum dots zvakagadzirwa neGreen Science Alliance. Kare, vakashandisa MOF-quantum dot composites kugadzira formic acid sechinhu chakakosha chekugadzira photosynthesis. Zvisinei, ma catalysts aya ari muchimiro cheupfu uye ma catalyst powders aya anofanira kuunganidzwa nekusefa mukuita kwega kwega. Nokudaro, zvakaoma kuashandisa mumaindasitiri chaiwo nekuti maitiro aya haasi enguva dzose.
Vachipindura, VaKajino Tetsuro, VaIwabayashi Hirohisa, naDr. Mori Ryohei veGreen Science Alliance Co., Ltd. vakashandisa tekinoroji yavo kudzivirira ma "artificial photosynthesis catalysts" aya pajira remachira risingadhuri uye vakavhura fekitari itsva ye "formic acid". Maitiro aya anogona kuitwa nguva dzose mumaindasitiri. Mushure mekupedzwa kwe "artificial photosynthesis reaction", mvura ine "formic acid" inogona kutorwa yobviswa, uye mvura itsva inogona kuwedzerwa mumudziyo kuti photosynthesis irambe ichitangwazve.
Asidhi yehydrogen inogona kutsiva mafuta ehydrogen. Chimwe chezvikonzero zvikuru zvinodzivisa kugamuchirwa kwenyika yose kwenharaunda ine hydrogen ndechekuti hydrogen, atomu diki pane zvese zvakasikwa, inonetsa kuchengeta, uye zvaizodhura zvikuru kuvaka dura rehydrogen rakavharwa zvakanaka. Pamusoro pezvo, gasi rehydrogen rinogona kuputika uye kuisa njodzi yekuchengetedza. Zviri nyore kuchengetedza maasidhi eformic semafuta nekuti imvura. Kana zvichidikanwa, formic acid inogona kukonzera reaction kuti igadzire hydrogen in situ. Pamusoro pezvo, formic acid inogona kushandiswa sezvinhu zvemakemikari akasiyana-siyana.
Kunyangwe kushanda zvakanaka kwe artificial photosynthesis pari zvino kuchiri kuderera zvakanyanya, Green Science Alliance icharamba ichirwisa kuwedzera kushanda zvakanaka uye kuisa artificial photosynthesis inoshandiswa zvechokwadi.