Kawanishi, Japan, Mbudzi 15, 2022 /PRNewswire/ — Matambudziko ezvakatipoteredza akadai sekushanduka kwemamiriro ekunze, kupera kwezviwanikwa zvechisikigo, kutsakatika kwemarudzi, kusvibiswa kwepurasitiki uye kuparadzwa kwemasango zviri kuwedzera pasi rose nekuda kwehuwandu hwevanhu.
Kabhoni dhayokisaidhi (CO2) imhepo inokonzera greenhouse uye chimwe chezvikonzero zvikuru zvekuchinja kwemamiriro ekunze. Panyaya iyi, nzira inozivikanwa se "artificial photosynthesis (CO2 photoreduction)" inogona kugadzira organic feedstock yemafuta nemakemikari kubva kuCO2, mvura nesimba rezuva, sezvinoita zvirimwa. Panguva imwe chete, inoderedzawo kuburitswa kweCO2, sezvo CO2 ichishandiswa sefeedstock yekugadzira simba nemakemikari. Saka, artificial photosynthesis inoonekwa seimwe yetekinoroji dzemazuva ano dzegreen.
MOFs (Metal Organic Frameworks) zvinhu zvine maburi akawanda zvinoumbwa nesimbi dzisina kugadzirwa uye organic linkers. Zvinogona kudzorwa padanho remamorekuru mu nanometer range uye zvine nzvimbo yakakura pamusoro. Nekuda kwehunhu uhwu, MOFs dzinogona kushandiswa mukuchengetedza gasi, kupatsanura, kunyudza simbi, catalysis, kuendesa mishonga, kurapa mvura, masensa, maelectrode, mafirita, nezvimwewo. Munguva pfupi yapfuura, MOFs dzakawanikwa dziine kugona kubata CO2 kunogona kuderedzwa ne photoreduced CO2, kureva, artificial photosynthesis.
Kune rumwe rutivi, madotsi eQuantum zvinhu zvakatetepa zvakanyanya (0.5–9 nm) zvine hunhu hwemaziso hunoenderana nemitemo yequantum chemistry uye quantum mechanics. Anodaidzwa kuti "maatomu ekugadzira kana mamorekuru ekugadzira" nekuti dotsi rega rega requantum rine maatomu kana mamorekuru mashoma kana zviuru zvishoma. Muhukuru uhwu, huwandu hwesimba remaerekitironi hahuchaenderere mberi uye hunoparadzaniswa nekuda kwechiitiko chepanyama chinozivikanwa sequantum confinement effect. Muchiitiko ichi, kureba kwechiedza chinoburitswa kunoenderana nehukuru hwemadotsi equantum. Aya madotsi equantum anogona zvakare kushandiswa mu artificial photosynthesis nekuda kwekugona kwawo kupinza chiedza zvakanyanya, kugona kugadzira exciton yakawanda uye nzvimbo yakakura.
Zvese MOFs nema quantum dots zvakagadzirwa pasi peGreen Science Alliance. Kare, vakashandisa MOF quantum dot composite materials 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. Saka, sezvo maitiro aya asingarambe achienderera mberi, zvakaoma kushandisa kuti ashandiswe mumaindasitiri.
Vachipindura, VaTetsuro Kajino, VaHirohisa Iwabayashi, naDr. Ryohei Mori veGreen Science Alliance Co., Ltd. vakashandisa tekinoroji yavo kudzivirira macatalyst aya ekugadzira photosynthesis pamachira asingadhuri uye vakagadzira nzira itsva yekugadzira formic acid. Iyo inogona kushanda nguva dzose mumaindasitiri. Mushure mekupedzwa kwe artificial photosynthesis reaction, mvura ine formic acid inogona kutorwa kuti ibudiswe, uye mvura itsva inogona kuwedzerwa mumudziyo kuti irambe ichienderera mberi ne artificial photosynthesis.
Asidhi yeFormic inogona kutsiva mafuta ehydrogen. Chimwe chezvikonzero zvikuru zvinodzivirira kupararira kwenharaunda yehydrogen pasi rose ndechekuti hydrogen ndiyo atomu diki pane zvese zvakasikwa, saka zvakaoma kuichengeta, uye kugadzirwa kwetangi rehydrogen rine simba guru rekuvhara kuchadhura zvikuru. Pamusoro pezvo, gasi rehydrogen rinogona kuputika uye kukonzera njodzi yekuchengetedza. Sezvo formic acid iri mvura, zviri nyore kuichengeta semafuta. Kana zvichidikanwa, formic acid inogona kushandiswa kukurudzira kugadzirwa kwehydrogen in situ. Pamusoro pezvo, formic acid inogona kushandiswa sezvinhu zvemakemikari akasiyana-siyana.
Kunyangwe kushanda zvakanaka kwe artificial photosynthesis kuchiri kuderera, Green Science Alliance icharamba ichirwira kuvandudzwa kwekushanda zvakanaka kuti ione mashandisirwo anoitwa artificial photosynthesis.