Kawanishi, Japan, Nov. 15, 2022 /PRNewswire/ — Tindzaba temvelo letifana nekushintja kwesimo selitulu, kucinywa kwemnotfo wemvelo, kucinywa kwetinhlobo tetilwane, kungcola kwemapulasitiki kanye nekugawulwa kwemahlatsi kuya ngekuba kubi emhlabeni wonkhe ngenca yekukhula kwebantfu.
I-Carbon dioxide (i-CO2) igesi ye-greenhouse futsi ngulenye yetimbangela letiyinhloko tekugucuka kwesimo selitulu. Kuloku, inchubo leyatiwa ngekutsi “i-photosynthesis yekufakelwa (CO2 photoreduction)” ingakhicita kudla lokuphilako kwemafutsa kanye nemakhemikhali kusuka ku-CO2, emanti kanye nemandla elanga, njengoba nje titjalo tenta. Ngesikhatsi lesifanako, tiphindze futsi tinciphise kukhishwa kwe-CO2, njengoba i-CO2 isetjentiswa njengekudla kwekukhicita emandla kanye nemitfombolusito yemakhemikhali. Ngako-ke, i-photosynthesis yekufakelwa itsatfwa njengalenye yetintfo takamuva tebuchwepheshe lobuluhlata.
Ema MOF (Tinhlaka Tetinsimbi Letiphilako) tintfo letinema ultraporous letakhiwe ngemacembu etinsimbi letingaphili kanye netihlanganisi tetilwane. Tingaphatfwa ezingeni le-molecule ebangeni le-nanometer futsi tibe nendzawo lenkhulu lesetulu. Ngenca yaletimphahla, ema MOF angasetjentiswa ekugcineni igesi, kwehlukanisa, kutsatsa insimbi, ku catalysis, kuletsa tidzakamiva, kuhlanta emanti, tinzwa, ema electrodes, ema filter, njll.
Emachashazi e-quantum, ngakulolunye luhlangotsi, tintfo letincane kakhulu (0.5–9 nm) letinetimphawu tekubuka letihambisana nemitsetfo yekhemikhali ye-quantum kanye nemakhemikhali e-quantum. Tibitwa ngekutsi “ema-athomu lakhiwe nobe ema- molecule lakhiwe” ngobe lichashazi ngalinye le- quantum linema- atom nobe ema- molecule latinkhulungwane letimbalwa nobe letimbalwa kuphela. Kulelibanga lebukhulu, emazinga emandla ema electrons akasachubeki futsi ahlukana ngenca yesimo lesibonakalako lesatiwa ngekutsi ngumphumela wekuvalelwa kwe quantum. Kulesi simo, budze begagasi lekukhanya lokukhishwako butawuncika ebukhuluni bemachashazi e-quantum. Lamachashazi equantum angaphindze asetjentiswe ku photosynthesis yekufakelwa ngenca yemandla awo laphakeme ekutsatsa kukhanya, likhono lekukhicita ema exciton lamaningi kanye nendzawo lenkhulu lesetulu.
Bobabili ema-MOF kanye nemachashazi e-quantum ahlanganiswe ngaphansi kweMfelandzawonye Wesayensi Leluhlata. Ngaphambilini, basebentise ngemphumelelo tintfo letihlangene te-MOF quantum dot kukhicita i-formic acid njengesikhutsato lesikhetsekile se-photosynthesis yekufakelwa. Nomakunjalo, lama catalysts asesimeni se powder futsi lama catalyst powders kumele ahlanganiswe ngekuhlunga kulenchubo ngayinye. Ngako-ke, njengoba letinchubo tingachubeki, kumatima kutifaka sicelo sekusetjentiswa kwetimboni letisebentako.
Ngekuphendvula, Mnumzane Tetsuro Kajino, Mnumzane Hirohisa Iwabayashi, kanye naDkt. lekungasebenta njalo etincenyeni letisebentako tetimboni. Ngemuva kwekucedvwa kwekuphendvula kwe photosynthesis yekufakelwa, emanti lacuketse iformic acid angakhishwa kutsi akhishwe, bese emanti lamasha lahlobile angafakwa emuva esitjeni kwentela kuchubeka nekucala kuphindze kwentiwe kwe photosynthesis yekufakelwa.
I-esidi ye-formic ingatsatsa sikhundla sephethiloli ye-hydrogen. Lesinye setizatfu letinkhulu letivimbela kusakateka kwemmango we-hydrogen emhlabeni wonkhe kutsi i-hydrogen yi-athomu lencane kakhulu endzaweni yonkhe, ngako-ke kumatima kuyigcina, futsi kukhicita lithange le-hydrogen lelinemtselela lomkhulu wekuvala kutawubita kakhulu. Ngetulu kwaloko, igesi ye-hydrogen ingaqhuma futsi ibe yingoti yekuphepha. Njengoba i-formic acid ingemanti, kulula kuyigcina njengephethiloli. Uma kudzingeka, i-formic acid ingasetjentiswa kwenta kutsi kukhicitwe i-hydrogen endzaweni. Ngekwengeta, i-formic acid ingasetjentiswa njengentfo leluhlata yemakhemikhali lehlukahlukene.
Nanobe kusebenta kahle kwe-photosynthesis yekufakelwa kusesephansi, i-Green Science Alliance itawuchubeka nekulwela kwenta ncono kusebenta kahle kute kusungulwe ticelo letisebentako te-photosynthesis yekufakelwa.