ʻO Kawanishi, Iapana, Nowemapa 15, 2022 /PRNewswire/ — Ke hoʻonui nei nā pilikia kaiapuni e like me ka loli o ke aniau, ka hoʻopau ʻana i nā kumuwaiwai kūlohelohe, ka pau ʻana o nā ʻano, ka haumia plastik a me ka luku ʻāina a puni ka honua ma muli o ka pahū ʻana o ka heluna kanaka.
He kinoea ʻōmaʻomaʻo ka carbon dioxide (CO2) a ʻo ia kekahi o nā kumu nui o ka loli o ke aniau. Ma kēia ʻano, hiki i kahi hana i ʻike ʻia ʻo "artificial photosynthesis (CO2 photoreduction)" ke hana i nā mea hānai organik no nā wahie a me nā kemika mai CO2, ka wai a me ka ikehu o ka lā, e like me ka hana a nā mea kanu. I ka manawa like, hoʻemi pū lākou i nā hoʻokuʻu CO2, ʻoiai ua hoʻohana ʻia ʻo CO2 ma ke ʻano he mea hānai no ka hana ʻana i ka ikehu a me nā kumuwaiwai kemika. No laila, ua manaʻo ʻia ka photosynthesis artificial kekahi o nā ʻenehana ʻōmaʻomaʻo hou loa.
ʻO nā MOF (Metal Organic Frameworks) he mau mea ultraporous i haku ʻia me nā hui o nā metala inorganic a me nā mea hoʻopili organik. Hiki ke hoʻomalu ʻia lākou ma ka pae molekala ma ka pae nanometer a he ʻili nui ko lākou. Ma muli o kēia mau waiwai, hiki ke hoʻohana ʻia nā MOF i ka mālama ʻana i ke kinoea, ka hoʻokaʻawale ʻana, ka adsorption metala, ka catalysis, ka lawe ʻana i nā lāʻau lapaʻau, ka mālama ʻana i ka wai, nā sensor, nā electrodes, nā kānana, a me nā mea ʻē aʻe. I kēia manawa, ua ʻike ʻia he hiki i nā MOF ke hopu i ka CO2 hiki ke hoʻemi ʻia ka CO2, ʻo ia hoʻi, ka photosynthesis artificial.
ʻO nā kiko Quantum, ma ka ʻaoʻao ʻē aʻe, he mau mea lahilahi loa (0.5–9 nm) nona nā waiwai optical e kūlike me nā lula o ke kemika quantum a me ka mechanics quantum. Ua kapa ʻia lākou he "nā ʻātoma hana a i ʻole nā ​​​​mole hana" no ka mea ʻo kēlā me kēia kiko quantum he mau tausani wale nō a he mau ʻātoma a i ʻole mau mole. Ma kēia pae nui, ʻaʻole e hoʻomau hou nā pae ikehu o nā electrons a ua hoʻokaʻawale ʻia ma muli o kahi hanana kino i ʻike ʻia ʻo ka hopena quantum confinement. I kēia hihia, e hilinaʻi ka nalu o ke kukui i hoʻopuka ʻia ma ka nui o nā kiko quantum. Hiki ke hoʻopili ʻia kēia mau kiko quantum i ka photosynthesis hana ma muli o ko lākou hiki ke hoʻomoʻa i ka mālamalama kiʻekiʻe, ka hiki ke hoʻoulu i nā exciton he nui a me ka ʻili nui.
Ua hoʻohui ʻia nā MOF a me nā kiko quantum ma lalo o ka Green Science Alliance. Ma mua, ua hoʻohana pono lākou i nā mea hui MOF quantum dot e hana i ka waikawa formic ma ke ʻano he mea hoʻoulu kūikawā no ka photosynthesis artificial. Eia nō naʻe, aia kēia mau mea hoʻoulu i ke ʻano pauka a pono e hōʻiliʻili ʻia kēia mau pauka hoʻoulu ma o ka kānana ʻana i kēlā me kēia kaʻina hana. No laila, ʻoiai ʻaʻole mau kēia mau kaʻina hana, he paʻakikī ke hoʻopili no ka hoʻohana ʻoihana pono.
I ka pane ʻana, ua hoʻohana ʻo Mr. Tetsuro Kajino, ʻo Mr. Hirohisa Iwabayashi, a me Kauka Ryohei Mori o Green Science Alliance Co., Ltd. i kā lākou ʻenehana e hoʻopaʻa i kēia mau mea hoʻoulu photosynthesis hana kūikawā ma nā pepa lole makepono a hoʻomohala i kahi kaʻina hana hou no ka hana ʻana o ka waikawa formic, hiki ke hana mau i nā noi ʻoihana kūpono. Ma hope o ka pau ʻana o ka hopena photosynthesis hana, hiki ke lawe ʻia ka wai i loaʻa ka waikawa formic no ka unuhi ʻana, a hiki ke hoʻohui ʻia ka wai hou i loko o ka pahu e hoʻomau i ka photosynthesis hana.
Hiki i ka waikawa formic ke pani i ka wahie hydrogen. ʻO kekahi o nā kumu nui e pale ai i ka laha ʻana o kahi kaiāulu hydrogen a puni ka honua, ʻo ia ka hydrogen ka ʻātoma liʻiliʻi loa ma ke ao holoʻokoʻa, no laila he paʻakikī ke mālama iā ia, a ʻo ka hana ʻana o kahi pahu hydrogen me ka hopena sila kiʻekiʻe e pipiʻi loa. Eia kekahi, hiki i ke kinoea hydrogen ke pahū a hoʻoweliweli i ka palekana. ʻOiai he wai ka waikawa formic, ʻoi aku ka maʻalahi o ka mālama ʻana ma ke ʻano he wahie. Inā pono, hiki ke hoʻohana ʻia ka waikawa formic e hoʻoulu i ka hana ʻana o ka hydrogen ma kahi. Eia kekahi, hiki ke hoʻohana ʻia ka waikawa formic ma ke ʻano he mea maka no nā kemika like ʻole.
ʻOiai ke haʻahaʻa nei ka pono o ka photosynthesis artificial, e hoʻomau ka Green Science Alliance i ka paio no nā hoʻomaikaʻi ʻana i ka pono e hoʻokumu i nā noi kūpono no ka photosynthesis artificial.