Kibaruyaw siratigɛ la – fɛnɲɛnamafagalanw ɲinini min bɛ ka bonya walasa ka sɔrɔ yiriwa, o bɛ ka dɔ fara gazi ɲuman (CO2) hakɛ kan fiɲɛ kɔnɔ. Hali ni cɛsiriw bɛ senna walasa ka dɔ bɔ CO2 bɔli la, o tɛ gazi min bɛ fiɲɛ kɔnɔ kaban, o nɔ juguw nɔgɔya. O la, ɲininikɛlaw ye fɛɛrɛ dafalenw Sɔrɔ walasa ka baara Kɛ ni fiɲɛ CO2 ye, n’u y’a Yɛlɛma ka Kɛ fɛn nafamaw ye i n’a fɔ asidi foromiki (HCOOH) ani mɛtanɔli. CO2 fotota dɔgɔyali ni fototalan ye ni yeelen yelen ye i n’a fɔ katalisita, o ye fɛɛrɛ ye min ka di kosɛbɛ o ɲɔgɔnna fɛn caman tigɛli la.
O sɛgɛsɛgɛli laban in na, min jirala mɛkalo tile 8 san 2023, Angewandte Chemie ka diɲɛ kɔnɔko la, Karamɔgɔ Kazuhiko Maeda n’a ka ɲininikɛla jɛkulu min bɛ Tokiyɔ Teknoloji kalanso la, olu ye ɲɛtaa caman sɔrɔ. U ye tintin (Sn) nɛgɛ-organique framework (MOF) dɔ labɛn ka ɲɛ, min bɛ CO2 fototacogo sugandilen sabati. MOF min donna kɔsa in na, o tɔgɔ dara ko KGF-10 ani a kemikaliya kɛcogo ye [SnII2(H3ttc)2.MeOH]n (H3ttc: asidi tritiyosiyanuriki, MeOH: mɛtanɔli) ye. Ni KGF-10 bɛ baara kɛ ni yeelen yelen ye, o bɛ CO2 caman tigɛli kɛ ka ɲɛ ka kɛ asidi foromiki (HCOOH) ye. Karamɔgɔ Maeda y’a ɲɛfɔ ko: “Fo ka na se bi ma, fototalan caman dilanna minnu bɛ se kosɛbɛ CO2 dɔgɔyali la, minnu sinsinnen bɛ nɛgɛw kan minnu man ca ani nɛgɛ nafamaw.Nka, ka yeelen minɛcogo ni fɛnɲɛnɛmafagalanw fara ɲɔgɔn kan ka kɛ molekiyɔmu kelen ye min bɛ kɛ ni nɛgɛ caman ye, o tora gɛlɛya ye.”. O cogo la, Sn y’a jira ko a ye mɔgɔ ɲuman ye walasa ka se sɔrɔ o gɛlɛya fila kan.”
MOFw, minnu bɛ nɛgɛw ni fɛnɲɛnamaw nafaw fara ɲɔgɔn kan, olu bɛ ka ɲinini kɛ walasa ka kɛ fɛn ye min bɛ kɛnɛya ka tɛmɛn laadala fototalanw kan minnu sinsinnen bɛ nɛgɛw kan minnu man ca. Sn, min lakodɔnnen don a jɔyɔrɔ fila fɛ i n’a fɔ katalisita ani yeelen minɛbaga fototalan baarakɛcogo la, o bɛ se ka kɛ sugandi ye min bɛ se ka kɛ fototalan minnu sinsinnen bɛ MOF kan. Hali ni MOF minnu dilannen don ni zirkoniyɔmu, nɛgɛ ani plɔmu ye, olu sɛgɛsɛgɛra kosɛbɛ, MOF minnu sinsinnen bɛ Sn kan, olu faamuyali dan ye hali bi. Kalan wɛrɛw ni kalan wɛrɛw ka kan ka kɛ walasa ka Sn-based MOFw seko ni u kɛcogo sɛgɛsɛgɛ kosɛbɛ fototalisi siratigɛ la.
Walasa ka MOF KGF-10 min sinsinnen bɛ tintin kan, ɲininikɛlaw ye H3ttc (asidi tritiyosiyanuriki), MeOH (mɛtanɔli) ani tintin kuloridi kɛ daminɛfɛnw ye. U ye 1,3-dimetil-2-fenil-2,3-dihydro-1H-benzo[d]imidazole sugandi ka kɛ ɛlektrɔniki dibaga ni idɔrɔzi sɔrɔyɔrɔ ye. Sintezi kɔfɛ, KGF-10 sɔrɔlen kɛra sɛgɛsɛgɛli fɛɛrɛ suguya caman ye. O sɛgɛsɛgɛliw y’a jira ko fɛn in bɛ ni CO2 minɛcogo hakɛ danma ye ni bandi gap ye 2,5 eV ye ani a bɛ se ka minɛ ka ɲɛ jikuruw janya yelen na.
Dɔnniyakɛlaw y’a kɛ ni dɔnniya ye min bɛ o fɛn kura in farikolo ni a ka kemikaliya cogoyaw kan, u ye baara kɛ n’a ye walasa ka gazi ɲuman dɔgɔyali kɛ yeelen yelen fɛ. Kɛrɛnkɛrɛnnenya la, ɲininikɛlaw y’a ye ko KGF-10 bɛ CO2 jiginni sɔrɔ ka kɛ format (HCOO-) ye ni sugandili ye fo ka se 99% ma ni yeelenbɔlan walima katalisita dɛmɛnan si tɛ. Ka fara o kan, KGF-10 ye kuantimɛ sɔrɔli yelenba jira min ɲɔgɔn ma deli ka kɛ fɔlɔ – o ye fotonw baaracogo ɲuman sumanikɛlan ye – ka se 9,8% ma 400 nm na. Kɛrɛnkɛrɛnnenya la, jɔcogo sɛgɛsɛgɛli min kɛra fototalan kɛcogo la, o y’a jira ko KGF-10 bɛ jɔcogo caman sɛmɛntiya walasa ka dɛmɛ don dɔgɔyali la.
Nin ɲinini in min ye dugukoloko ye, o bɛ fototalan KGF-10 jira min bɛ baara kɛ kosɛbɛ, min sinsinnen bɛ tintin kan, n’a mago tɛ nɛgɛ ɲuman na i n’a fɔ fɛɛrɛ kelen min bɛ CO2 dɔgɔya ka kɛ foromatɛri ye yeelen yelen fɛ. KGF-10 ka jogo kabakoma minnu jirala nin kalan in kɔnɔ, olu bɛ se ka fɛn caman sɛmɛntiya a baaracogo la i n’a fɔ fototalan baara suguya caman na, tile ka CO2 dɔgɔyali fana sen bɛ o la. Karamɔgɔ Maeda y’a kuncɛ ko: “An ka jaabiw b’a jira ko MOFw bɛ se ka kɛ sababu ye ka fototalan seko fisamanw yiriwa ni nɛgɛw ye minnu tɛ baga ye, minnu musaka ka dɔgɔ ani minnu ka ca, nɛgɛ minnu bɛ sɔrɔ Dugukolo kan, minnu ka teli ka kɛ nɛgɛ molekiyɔmuw ye. O sɔrɔli in bɛ sira kura da mɔgɔw ɲɛ na. horizon kuraw ye fototalisi siratigɛ la ani ka sira dabɔ Dugukolo nafolo baaracogo sabatilen ni baarakɛcogo ɲuman na.
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