Nkibyuma byingenzi bya gaze ya gaze, ibyuma bya gaze ya nano ibyuma bya semiconductor bikoreshwa cyane mubikorwa byinganda, kugenzura ibidukikije, ubuvuzi ndetse nizindi nzego kugirango ziyumve neza, igiciro gito cyo gukora no gupima ibimenyetso byoroshye.Kugeza ubu, ubushakashatsi ku kunoza imiterere ya gaze yerekana ibikoresho bya nano ibyuma bya nano byuma byibanda cyane cyane ku iterambere rya oxyde ya nanoscale, nka nanostructure no guhindura doping.

Ibikoresho bya Nano metal oxyde semiconductor yunvikana cyane cyane SnO2, ZnO, Fe2O3, VO2, In2O3, WO3, TiO2, nibindi.

Kugeza ubu, icyerekezo nyamukuru cyubushakashatsi nugutegura nanomateriali yubatswe hamwe nubuso bunini bwihariye, nka nanotubes, nanorod array, nanoporous membrane, nibindi kugirango hongerwe ingufu za adsorption ya gaze nigipimo cyo gukwirakwiza gaze, bityo bitezimbere ibyiyumvo byihuta nigisubizo kuri gaze y'ibikoresho.Doping yibanze ya oxyde yicyuma, cyangwa kubaka sisitemu ya nanocomposite, ibyinjijwe bya dopant cyangwa ibiyigize bishobora kugira uruhare rwa catalitiki, kandi birashobora no kuba umutabazi wubwubatsi bwa nanostructure, bityo bikazamura imikorere rusange ya gaze yo kumva. ibikoresho.

1. Ibikoresho byerekana gaze byakoreshejwe Nano Tin Oxide (SnO2)

Amabati (SnO2)) ni ubwoko rusange bwibikoresho bya gaze byoroshye.Ifite ibyiyumvo byiza kuri gaze nka Ethanol, H2S na CO.Icyuka cyayo cya gaze biterwa nubunini bwagace hamwe nubuso bwihariye.Kugenzura ingano ya nanopowder ya SnO2 nurufunguzo rwo kunoza gaze.

Abashakashatsi bashingiye kuri porojeri ya mesoporous na macroporous nano tin oxyde, abashakashatsi bateguye ibyuma bifata ibyuma bifata ibyuma bifite ibikorwa byinshi bya catalitiki ya okiside ya CO, bivuze ko ibikorwa bya gaze byiyongera.Byongeye kandi, imiterere ya nanoporous yahindutse ahantu hashyushye mugushushanya ibikoresho byumva gaze kubera SSA nini, ikwirakwizwa rya gaze ikungahaye hamwe numuyoboro wohereza.

2. Ibikoresho byo kumva gaze byakoreshejwe Nano Iron Oxide (Fe2O3)

Okiside y'icyuma (Fe2O3)ifite uburyo bubiri bwa kristu: alfa na gamma, byombi bishobora gukoreshwa nkibikoresho byerekana gaze, ariko imiterere ya gaze ya gaze ifite itandukaniro rinini.α-Fe2O3 ni iyimiterere ya corundum, imiterere yumubiri irahagaze.Uburyo bwacyo bwo kumva gaze bugenzurwa hejuru, kandi ibyiyumvo byayo ni bike.Fe-Fe2O3 ni imiterere ya spinel kandi irashoboka.Uburyo bwayo bwo kwiyumvisha gazi ahanini ni ukurwanya umubiri.Bufite sensibilité nziza ariko butajegajega, kandi biroroshye guhinduka kuri α-Fe2O3 no kugabanya ubukana bwa gaze.

Ubushakashatsi buriho bwibanze ku kunoza imiterere ya synthesis kugirango igenzure morphologie ya nanoparticles ya Fe2O3, hanyuma igenzure ibikoresho bikenerwa na gaze, nka α-Fe2O3 nanobeams, poro α-Fe2O3 nanorods, monodisperse α-Fe2O3 nanostructures, mesopores α-Fe2O3 nanomaterial, nibindi

3. Ibikoresho byerekana gaze byakoreshejwe Nano Zinc Oxide (ZnO)
Zinc oxyde (ZnO)ni ibintu bisanzwe bigenzurwa na gaze-yunvikana.Sensor ya ZnO ishingiye kuri sensor ifite ubushyuhe bwo hejuru bwo gukora no guhitamo nabi, bigatuma idakoreshwa cyane kuruta SnO2 na Fe2O3 nanopowders.Kubwibyo rero, gutegura imiterere mishya ya ZnO nanomaterial, guhindura doping ya nano-ZnO kugirango igabanye ubushyuhe bwimikorere no kunoza guhitamo nibyo byibandwaho mubushakashatsi kubikoresho bya gaze ya nano ZnO.

Kugeza ubu, iterambere rya kristu imwe ya nano-ZnO yerekana ibyuka ni kimwe mu byerekezo byimbibi, nka ZnO imwe ya kirisiti ya nanorodoro.

4. Ibikoresho byerekana gaze byakoreshejwe Nano Indium Oxide (In2O3)
Indium oxyde (In2O3)ni uburyo bugaragara n-ubwoko bwa semiconductor gas sensing material.Ugereranije na SnO2, ZnO, Fe2O3, nibindi, ifite intera nini ya bande, irwanya rito hamwe nigikorwa kinini cya catalitiki, hamwe no kumva neza CO na NO2.Nanomateriali nini ihagarariwe na nano In2O3 nimwe mubushakashatsi bwa vuba.Abashakashatsi bashushanyije ibikoresho bya mesoporous In2O3 bakoresheje uburyo bwo kwigana mesoporous silica.Ibikoresho byabonetse bifite umutekano muke uri hagati ya 450-650 ° C, kubwibyo bikwiranye na sensor ya gaze ifite ubushyuhe bwinshi bwo gukora.Zumva metani kandi zirashobora gukoreshwa mugukurikirana ibisasu bijyanye no guturika.

5. Ibikoresho byerekana gaze byakoreshejwe Nano Tungsten Oxide (WO3)
WO3 nanoparticlesni inzibacyuho yicyuma cya semiconductor ibikoresho byizwe cyane kandi bigashyirwa mubikorwa byiza bya gaze.Nano WO3 ifite imiterere ihamye nka triclinic, monoclinic na orthorhombic.Abashakashatsi bateguye WO3 nanoparticles hakoreshejwe uburyo bwa nano-casting bakoresheje mesoporous SiO2 nk'icyitegererezo.Byagaragaye ko monoplinic WO3 nanoparticles ifite impuzandengo ya 5 nm ifite imikorere myiza yo kumva gaze, kandi sensor ebyiri zabonetse kubwo gukwirakwiza amashanyarazi ya WO3 nanoparticles Ubushyuhe buke bwa NO2 bufite igisubizo kinini.

Ikwirakwizwa rya homogeneous icyiciro cya mpande esheshatu WO3 nanoclusters yashizwemo nuburyo bwo guhanahana-hydrothermal uburyo.Ibisubizo by'ibizamini bya gaze byerekana ko sensor ya gaze ya WO3 ifite ubushyuhe buke bwo gukora, ibyiyumvo byinshi kuri acetone na trimethylamine hamwe nigihe cyiza cyo gukira, bikagaragaza ibyifuzo byiza byibikoresho.

6. Ibikoresho byerekana gaze byakoreshejwe Nio Titanium Dioxide (TiO2)
Dioxyde ya Titanium (TiO2)ibikoresho byo kumva gaze bifite ibyiza byo gutuza neza hamwe nuburyo bworoshye bwo gutegura, kandi buhoro buhoro byahindutse ikindi kintu gishyushye kubashakashatsi.Kugeza ubu, ubushakashatsi kuri sensor ya gaze ya nano-TiO2 yibanda kuri nanostructure no gukora ibikoresho bya sensor ya TiO2 ukoresheje nanotehnologiya igaragara.Kurugero, abashakashatsi bakoze fibre ya micro-nano-nini ya TiO2 ya tekinoroji ya coaxial electrospinning.Ukoresheje tekinoroji ya flame ihagaze, electrode yambukiranya ishyirwa inshuro nyinshi mumuriro wahagaritswe hamwe na titanium tetraisopropoxide nkibibanziriza, hanyuma igahita ikura kugirango ibe membrane membrane hamwe na TiO2 nanoparticles, ikaba ari igisubizo cyoroshye kuri CO. nanotube array by anodisation kandi irayikoresha mugushakisha SO2.

7. Nano oxyde igizwe nibikoresho byumva gaze
Imyuka ya gaze ya nano metal oxyde ya poro ya porojeri yunvikana irashobora kunozwa hakoreshejwe doping, idahindura gusa amashanyarazi yumuriro wibikoresho, ahubwo inatezimbere ituze no guhitamo.Gukoporora ibintu by'agaciro by'icyuma ni uburyo busanzwe, kandi ibintu nka Au na Ag bikunze gukoreshwa nka dopants kugirango tunoze imikorere ya gaze ya poro ya nano zinc.Ibikoresho bya Nano oxyde yibikoresho bya gaz birimo cyane cyane Pd ikoporora SnO2, Pt-ikoporora γ-Fe2O3, hamwe nibintu byinshi byongewemo In2O3 hollow sphere sensing material, bishobora kugerwaho mugucunga inyongeramusaruro hamwe nubushyuhe bwo kumenya kugirango hamenyekane neza NH3, H2S na CO . Byongeye kandi, firime ya WO3 nano yahinduwe hamwe na V2O5 kugirango itezimbere imiterere yimiterere ya firime ya WO3, bityo itezimbere ibyiyumvo bya NO2.

Kugeza ubu, graphene / nano-icyuma cya oxyde ya oxyde yahindutse ahantu h'ibikoresho bya sensororo ya gaze.Graphene / SnO2 nanocomposite yakoreshejwe cyane nko gutahura ammonia hamwe nibikoresho bya NO2.