Ko te tae whero cadmium he momo tae kore-waro i hangaia hei wairewa totoka o te cadmium sulfide (CdS) me te cadmium selenide (CdSe). Ko te nui o te selenium (x) e tohu ana i te tae, e neke ana i te tae mai i te karaka (Se iti) ki te whero hohonu (Se teitei) mā te whakaheke i te āputa roopu mai i te 2.4 eV (CdS parakore, kōwhai) ki te 1.7 eV (CdSe parakore, whero).
He uaua te tautuhi i ngā tae i roto i ngā mahi toi nā te rerekētanga o ngā ōwehenga o te selenium me te cadmium, ngā āhua ā-tinana, me ngā tae ōrite o ētahi atu tae whero. Ko te paitini o te tae selenium me te nui o te konganuku taumaha e akiaki ana i te tirotiro ture tino kaha. Ko te tātari tika i te hanganga tae e tautoko ana i te tutuki i ngā whakaritenga, te haumaru, me te pono o te tapanga.
Tae Whero Cadmium
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Ngā Mātāpono o te XRF Spectroscopy mō te Tātaritanga Tae
Mā te tirotiro hihi-X (XRF) ka whakaoho i ngā ngota i roto i te tae whero cadmium mā te whakamahi i ngā hihi-X tuatahi, ka panaia ngā irahiko o roto. Ka whakangāwari te ngota mā te tuku i ngā hihi-X tuarua (whakapūmau) e motuhake ana ō rātou kaha ki te huānga. Mō ngā tikanga tātari matū tae, ka puta ngā tihi Kα me Kβ o te selenium i te 11.2 me te 12.5 keV, ia; ka puta te cadmium i te 23.1 keV. Ka taea e te XRF te tātari i te hanganga tae o ngā totoka me te kore e kino ngā tauira. Ka whakaratohia e te XRF te tautuhi tae kounga me te rahi, ka kitea te ihirangi tae selenium ki raro ki ngā wāhanga ia miriona i roto i ngā matrices maroke. Ka puta te kitenga i roto i ngā hēkona, ka taea te mahere i ngā paparanga tae uaua i roto i ngā horopaki tiaki toi, i te whakapūmau kounga rānei.
Ngā Painga Matua of Te Matawai XRF inPigment ComtūrangaitionAnangā kupuis
Ka tutuki te XRF i ngā whakaritenga kore-whakangaro mō ngā whakamahinga o te tae whero cadmium, ka karo i te tauira moroiti e hiahiatia ana e ngā tikanga pēnei i te ICP-OES, i te AAS rānei. Ki te whakatauritea ki ngā tikanga tautuhi tae whakangaro, ka tiakina e te XRF ngā tauira tawhito me ngā tauira hou, ka tautoko i ngā tikanga tautuhi tae mō te tirotiro ture, ngā aromatawai haumaru tae rānei. He whai hua te XRF ki ngā paparanga peita totoka, ngā tae paura, me ngā mea kāore i pakaru, ka taea ai te tātari tika i te hanganga tae me te aroturuki i te paitini tae selenium i roto i ngā mahi rerekē me ngā puranga ahumahi.
Aromatawai Kounga me te Tauanga o te Selenium i roto i ngā Tae Whero Cadmium
Mā te XRF ka taea te tautuhi tika i te selenium i roto i te tae whero cadmium mā te kite i ngā tihi motuhake o te selenium Kα (11.2 keV) me te Kβ (12.5 keV). Mā te kitea o ngā rārangi cadmium Kα (23.1 keV) me te selenium Kα e whakaū ana kei roto i te tae he hanganga cadmium sulfo-selenide.
Mā te tātaritanga matimati XRF ka wehewehea te tae whero cadmium mai i ngā tae kōwhai cadmium sulfide parakore, ngā tae whero kē atu rānei kāore he selenium. Mō ngā ranunga, ngā whakarerekētanga rānei, ka whakapai ake ngā huarahi whānuitanga-katoa me te tātari matū (hei tauira, te tātaritanga wāhanga matua) i te wehewehe, ka whakaitihia ngā hua hē ina tautuhia ngā tae i roto i ngā taonga toi, i ngā taonga ahumahi rānei.
Mita Roro XRFSeleniumaNgā Whakatakotoranga Matua o te Kaitātari
Ka kitea e ngā tātaritanga XRF Lonnmeter te cadmium, te selenium, me ētahi atu konganuku tae matua i roto i ngā tauira tae totoka, paura, me ngā tauira tae peita. Ko te roa o te tātaritanga mai i te 30 hēkona ki te70hēkona. Ko te whakataunga teitei o te hihi me te whakatikatika matatau ka puta he tika o te ine e tika ana mō te tātari hanganga tae me te tirotiro i ngā whakaritenga mō ngā whakamahinga tae whero cadmium me ngā tae selenium. Ka tautokohia e te atanga mata pa ngā tikanga tautuhi tae me ngā aratau kua whakaritea i mua, te whakaaturanga hihi ora, me ngā pūrongo whakamātautau whakarite. Ka taea te kaweake raraunga mā te USB, Wi-Fi rānei. Ka whakaaetia e te whakahaere tauira ngā paura pēhia, ngā totoka ōrite, ngā paparanga peita rānei; kāore e hiahiatia he whakarite tauira whakangaro. Ko ngā hononga haumaru irahiko ā-roto me te hoahoa kiato (<(2 kg te taumaha) kia haumaru, kia whai hua hoki ngā mahi.
Spūoko nekehanga iliconof Ka tautokohia e te tātaritanga XRF a Lonnmeter ngā tikanga tātari matū tae tere, tika hoki, me te āheinga ki te tāruarua ine. Kei roto i ngā āhuatanga atanga te arotake i te whānuitanga me ngā tikanga tautuhi tae hanganga e hototahi ana ki ngā mahi toi, hangahanga, me te rangahau.
Te Tono i tētahi Tāpaetanga me ngā Mahi e Whai Ake Nei
Ka whakarite te tūāpapa i ngā taunakitanga i runga i ngā whakaritenga motuhake mō te tono, tae atu ki ngā whakamahinga o te tae whero cadmium, te paitini o te tae selenium, me ngā tikanga tātari matū tae. Ka ārahi ngā ratonga kōrero i ngā kōwhiringa whakaritenga mō ngā pūnaha tae uaua, te tutuki rānei i ngā ture haumaru tae. Kei roto i ngā whirihoranga katoa ngā kōwhiringa whakahaere tauira e hototahi ana ki ngā paura, ngā pirepire pēhia, me ngā taonga peita.
Ko te whakaurunga whānui e kapi ana i te whakarite tauira, te whiriwhiri rauemi tohutoro kua whakamanahia, me ngā tikanga whakahaere paerewa mō ngā tikanga tautuhi tae. Kei roto i te tautoko tonu ko te whakatikatika anō i ngā taputapu mō te tātari hanganga tae, te rapurongoā mō te tohu iti, te haruru nui rānei, me ngā tikanga haumaru mō te whakahaere i ngā tae cadmium me te selenium.
Ngā Pātai Auau
He aha te tae whero cadmium, ā, he aha te wāhi o te selenium i roto i tōna hanganga?
Ko te tae whero cadmium he cadmium sulfoselenide, kei roto ko te cadmiumwhanarikime te 10–25% cadmium selenide. Ka noho ngā katote selenium ki ngā wāhi whatu, ka puta he rerekētanga tae mai i te karaka ki te whero hohonu mā te whakarerekē i te ōwehenga CdS:CdSe. Ka whakarite te matihiko tioata i te kaha me te pumau o te tae. Ka whakarei ake te selenium i te kanapa o te tae, ka roa ake te mau o te tae, he mea nui mō ngā tae toi pumau, mārama me ngā rauemi ahumahi.
He pēhea te āwhina a te mātai ira XRF ki te tautuhi i ngā tae?
Mā te tirotiro XRF ka kitea tika te cadmium me te selenium i roto i ngā matrices pigment totoka hei tātari matū pigment kore-whakangaro. Mā ngā tihi huānga, tae atu ki te cadmium Kα (23.2 keV) me te selenium Kα (11.2 keV), ka taea te tautuhi tere i te hanganga pigment. Mā te tikanga ka wehewehe tika i ngā pigments selenium mai i ētahi atu momo, me ngā rohe kitenga i raro i te 50 ppm i runga i te hanganga matrices me te āhua o te tauira.
He aha te hiranga o te kimi i te nui o te selenium i roto i ngā tae?
Me tuhi te ihirangi o te selenium mō te haumaru o te tae, te ōritetanga o te whakaputanga, me te tutuki i ngā ture ā-ao mō te taiao me te pānga o ngā kaimahi. Ka whakanui ake te nui o te selenium i te mōrearea o te paitini o te tae, ā, ka pā ki te kaha ki te whakaputa anō i te atarangi. Mā ngā hanganga tae selenium kua whakahaeretia ka whakarite kia tutuki i ngā ture me te mahi pai o te tae i roto i ngā mahi toi,ngā paninga, me ngā kirihou.
Wā tuku: Maehe-09-2026
