I-cadmium red pigment luhlobo lwee-inorganic pigments ezenziwe njengezisombululo eziqinileyo ze-cadmium sulfide (CdS) kunye ne-cadmium selenide (CdSe). Umxholo we-selenium ochanekileyo (x) ulawula umbala, utshintsha umbala ukusuka kwi-orenji (i-Se ephantsi) ukuya kubomvu obunzulu (i-Se ephezulu) ngokunciphisa i-bandgap ukusuka kwi-2.4 eV (i-CdS ecocekileyo, etyheli) ukuya kwi-1.7 eV (i-CdSe ecocekileyo, ebomvu).
Ukuchonga imibala kubugcisa kuyinkimbinkimbi ngenxa yemilinganiselo ye-selenium kunye ne-cadmium eguquguqukayo, iimeko ezibonakalayo, kunye nemibala ehambelanayo yeminye imibala ebomvu. Ubuthi be-selenium pigment kunye nomxholo we-heavy metal kuqhuba uphononongo olungqongqo lwemithetho. Uhlalutyo oluchanekileyo lokwakheka kwemibala luxhasa ukuthotyelwa, ukhuseleko, kunye nokuthembeka kweelebheli.
I-Cadmium Red Pigment
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Imigaqo ye-XRF Spectroscopy yoHlalutyo lwePigment
I-X-ray fluorescence (XRF) spectroscopy ivuselela ii-athomu kwi-cadmium red pigment isebenzisa ii-X-rays eziphambili, ikhupha ii-electron zangaphakathi. I-athomu iyaphumla ngokukhupha ii-X-rays zesibini (ezikhanyayo) ezinamandla azo axhomekeke kwi-element. Kwiindlela zohlalutyo lweekhemikhali ze-pigment, iincopho ze-Kα kunye ne-Kβ ze-selenium zenzeka kwi-11.2 kunye ne-12.5 keV, ngokulandelelana; i-cadmium ibonakala kwi-23.1 keV. I-XRF ivumela uhlalutyo lokwakheka kwe-pigment yezinto eziqinileyo ngaphandle kokonakalisa iisampuli. I-XRF ibonelela ngokuchongwa kwe-pigment esemgangathweni kunye neyobuninzi, ifumanisa umxholo we-selenium pigment ukuya kwiindawo ngesigidi kwi-matrices eyomileyo. Ukufunyanwa kwenzeka ngemizuzwana, okuvumela ukumapha iileya ze-pigment ezintsonkothileyo kulondolozo lobugcisa okanye kwiimeko zokuqinisekisa umgangatho.
Iingenelo eziphambili of I-XRF Spectroscopy inPigment Comiposiiti-ionAnaukukhanyais
I-XRF ihambelana neemfuno ezingatshabalalisiyo zokusetyenziswa kwe-cadmium red pigment, ithintela ukufunyaniswa kwesampulu ezincinci ezifunekayo ngeendlela ezifana ne-ICP-OES okanye i-AAS. Xa kuthelekiswa neendlela zokuchonga i-pigment ezitshabalalisayo, i-XRF igcina iisampulu zembali nezanamhlanje, ixhasa iindlela zokuchonga i-pigment zokuhlola okulawulayo okanye uvavanyo lokhuseleko lwe-pigment. I-XRF iyasebenza ngeeleya ezipeyintiweyo eziqinileyo, ii-powder pigments, kunye nezinto ezingasebenziyo, ivumela uhlalutyo oluchanekileyo lokwakheka kwe-pigment kunye nokulandelela ubuthi be-selenium pigment kwimisebenzi eyahlukeneyo kunye neebhetshi zemizi-mveliso.
Uvavanyo loMgangatho noBuninzi beSelenium kwiCadmium Red Pigments
I-XRF ivumela ukuchongwa ngokuthe ngqo kwe-selenium kwi-cadmium red pigment ngokufumanisa iincopho ze-selenium Kα (11.2 keV) kunye ne-Kβ (12.5 keV). Ukubakho kwemigca ye-cadmium Kα (23.1 keV) kunye ne-selenium Kα kuqinisekisa ukuba i-pigment inesakhiwo se-cadmium sulfo-selenide.
Uvavanyo lweminwe lwe-XRF spectrum lwahlula umbala obomvu we-cadmium kwi-yellows ye-cadmium sulfide ecocekileyo okanye ezinye ii-pigment ezibomvu ezingenayo i-selenium. Kwimixube okanye utshintsho, iindlela ze-full-spectrum kunye nohlalutyo lwe-chemometric (umz., uhlalutyo lwe-principal component) ziphucula ucalucalulo, zinciphisa iziphumo ezingezizo xa zichonga imibala kwizinto zobugcisa okanye zoshishino.
I-Lonnmeter XRFSi-eleniumIinkcukacha zeSihluthulelo seAnalyzer
Abahlalutyi beLonnmeter XRF bafumana i-cadmium, iselenium, kunye nezinye iintsimbi eziphambili zepigment kwiisampuli zepigment eziqinileyo, eziluthuli, nezipeyintiweyo. Ixesha lohlalutyo liqala kwimizuzwana engama-30 ukuya kuthi ga70imizuzwana. Isisombululo esiphezulu se-spectral kunye nokuchaneka kwe-calibration yield quantity efanelekileyo kuhlalutyo lokwakheka kwe-pigment kunye nokuhlolwa kokuhambelana nokusetyenziswa kwe-cadmium red pigment kunye ne-selenium pigments. I-interface yesikrini sokuchukumisa ixhasa iindlela zokuchonga i-pigment ngeendlela ezicwangcisiweyo kwangaphambili, umboniso we-spectrum ophilayo, kunye neengxelo zovavanyo ezinokwenziwa ngokwezifiso. Idatha ingathunyelwa ngaphandle nge-USB okanye i-Wi-Fi. Ukuphathwa kwesampulu kwamkela iipowders ezicinezelweyo, izinto eziqinileyo ezifanayo, okanye iileya zepeyinti; ukulungiswa kwesampulu etshabalalisayo akufuneki. Unxibelelwano lwangaphakathi lwemitha kunye noyilo oluncinci (<2 kg eziphathwa ngesandla) ziqinisekisa imisebenzi ekhuselekileyo nesebenzayo.
Sisixhobo sokutsala i-iconof I-XRF analyzer kaLonnmeter ixhasa iindlela zokuhlalutya iikhemikhali zepigment ezikhawulezayo nezichanekileyo kunye nokuphindaphinda kwemilinganiselo. Iimpawu zonxibelelwano ziquka uphononongo lwe-spectrum kunye neendlela zokuchonga i-pigment ezicwangcisiweyo ezihambelana nemisebenzi yobugcisa, yokuvelisa, kunye neyophando.
Ukucela iKoteshini kunye namanyathelo alandelayo
Eli qonga lenza iingcebiso ngokusekelwe kwiimfuno ezithile zesicelo, kubandakanya ukusetyenziswa kwe-cadmium red pigment, ubuthi be-selenium pigment, kunye neendlela zohlalutyo lweekhemikhali ze-pigment. Iinkonzo zokubonisana zikhokela iindlela zokwenza ngokwezifiso iinkqubo ze-pigment ezintsonkothileyo okanye ukuthobela imigaqo yokhuseleko lwe-pigment. Zonke iindlela zokucwangcisa ziquka iindlela zokuphatha iisampulu ezihambelana neempuphu, ii-pellets ezicinezelweyo, kunye nezinto ezipeyintiweyo.
Ukufakwa ngokupheleleyo kwezixhobo kubandakanya ukulungiswa kwesampulu, ukukhethwa kwezinto ezingqinisisiweyo, kunye neenkqubo zokusebenza ezisemgangathweni zobugcisa bokuchonga umbala. Inkxaso eqhubekayo ibandakanya uhlengahlengiso lwezixhobo zohlalutyo lokwakheka kombala, ukusombulula ingxaki yesandi esiphantsi okanye ingxolo ephezulu, kunye neenkqubo zokhuseleko zokuphatha i-cadmium kunye ne-selenium pigments.
Imibuzo ebuzwa qho
Yintoni i-cadmium red pigment kwaye ibandakanyeka njani i-selenium ekwakhiweni kwayo?
I-cadmium pigment ebomvu yi-cadmium sulfoselenide, equlathe i-cadmiumi-sulfidekunye ne-10–25% ye-cadmium selenide. Ii-ion ze-selenium zihlala kwiindawo ze-lattice, zivelisa umahluko wemibala ukusuka kwi-orenji ukuya kubomvu obunzulu ngokutshintsha umlinganiselo we-CdS:CdSe. I-crystalline matrix iqinisekisa amandla aphezulu okuthambisa kunye nozinzo. I-selenium iphucula ukukhanya kombala kwaye yandisa ukuqina kombala, ibaluleke kakhulu kwimibala engapheliyo, ekhaphukhaphu yomculi kunye nezixhobo zoshishino.
I-XRF spectroscopy inceda njani ekuchongeni umbala?
I-XRF spectroscopy ibona i-cadmium kunye ne-selenium ngokuthe ngqo kwiimatrices ze-pigment eziqinileyo ukuze kuhlalutywe iikhemikhali ze-pigment ezingatshabalalisiyo. Iincopho ze-elemental, kuquka i-cadmium Kα (23.2 keV) kunye ne-selenium Kα (11.2 keV), zivumela ukuchongwa ngokukhawuleza kokwakheka kwe-pigment. Le ndlela yahlula ngokuchanekileyo ii-pigment ze-selenium kwezinye iintlobo, kunye nemida yokuchongwa engaphantsi kwe-50 ppm kuxhomekeke kwisakhiwo se-matrix kunye ne-geometry yesampuli.
Kutheni kubalulekile ukubona umxholo we-selenium kwii-pigment?
Ukubhala umxholo we-selenium kuyimfuneko ukuze kukhuseleke umbala, ukuhambelana kwemveliso, kunye nokuthobela imithetho yehlabathi jikelele malunga nokuvezwa kwendalo kunye nomsebenzi. I-selenium egqithisileyo inyusa umngcipheko wetyhefu yombala kwaye ichaphazela ukuphinda ivele kombala. Iifomyula ze-selenium ezilawulwayo ziqinisekisa ukuthotyelwa kwemithetho kunye nokusebenza kakuhle kombala kubugcisa,iingubo zokwalekakunye neeplastiki.
Ixesha lokuthumela: Matshi-09-2026
