Amagesi amahleikripton kanyexenonzingakwesokudla kakhulu kuthebula le-periodic futhi zinokusetshenziswa okungokoqobo nokubalulekile. Isibonelo, zombili zisetshenziselwa ukukhanyisa.I-Xenoniyona ewusizo kakhulu kokubili, ukuba nezicelo ezengeziwe kwezokwelapha nobuchwepheshe benuzi.
Ngokungafani negesi yemvelo, eningi ngaphansi komhlaba,ikriptonifuthixenonzakha ingxenye encane kuphela yomkhathi womhlaba. Ukuze uwaqoqe, amagesi kumelwe adlule emijikelezweni eminingana yenqubo edinga amandla ebizwa ngokuthi i-cryogenic distillation, lapho kuthathwa khona umoya bese upholiswa wehle ufike cishe ku--300 degrees Fahrenheit. Lokhu kupholisa okwedlulele kwehlukanisa amagesi ngokwezinga lawo abilayo.
Okushaikriptonifuthixenonubuchwepheshe bokuqoqa obulondoloza amandla nemali bufiseleka kakhulu. Abacwaningi manje bakholelwa ukuthi bathole inqubo enjalo, futhi indlela yabo ichazwe kabanzi ku-Journal of the American Chemical Society.
Iqembu lihlanganise i-silicoaluminophosphate (SAPO), ikristalu equkethe izimbotshana ezincane kakhulu. Ngezinye izikhathi ubukhulu bembotshana buphakathi kobukhulu be-athomu ye-krypton kanye ne-axenoni-athomu. Encaneikriptoniama-athomu angadlula kalula ezimbotsheni kuyilapho ama-athomu amakhulu e-xenon ebhajwa. Ngakho, i-SAPO isebenza njengesisefo samangqamuzana. (Bheka isithombe.)
Besebenzisa insimbi yabo entsha, ababhali babonise lokhoikriptoniisakazeka ngokushesha izikhathi ezingama-45 kunexenon, okubonisa ukusebenza kahle kwayo ekuhlukaniseni igesi ngezinga lokushisa elilingana negumbi. Olunye ucwaningo lwabonisa ukuthi i-xenon ayizange igcine ngokuzabalaza ukungena kulezi zimbotshana ezincane, kodwa futhi ijwayele ukukhanga kumakristalu e-SAPO.
Engxoxweni ne-ACSH, ababhali bathi ukuhlaziya kwabo kwangaphambilini kubonise ukuthi indlela yabo inganciphisa amandla adingekayo ukuqoqaikriptonikanye ne-xenon cishe ngamaphesenti angama-30. Uma lokhu kuyiqiniso, khona-ke ososayensi bezimboni kanye nabathandi bokukhanya kwe-fluorescent bayoba nokuningi abangaziqhenya ngakho.
Umthombo: Xuhui Feng, Zhaowang Zong, Sameh K. Elsaidi, Jacek B. Jasinski, Rajamani Krishna, Praveen K. Tallapally, kanye no-Moises A. Carreon. “Kr/Xe separation on chabazite zeolite membranes”, J. Am. Amakhemikhali. Idethi yokushicilela (I-inthanethi): Julayi 27, 2016 I-athikili ngokushesha ngangokunokwenzeka DOI: 10.1021/jacs.6b06515
UDkt. Alex Berezov uyisazi se-PhD microbiologist, umbhali wesayensi nesikhulumi esigxile ekuxazululeni i-pseudoscience yoMkhandlu waseMelika Wesayensi Nezempilo. Uphinde abe yilungu lebhodi lababhali be-USA TODAY futhi uyisikhulumi esivakashile e-Insight Bureau. Ngaphambilini, wayengumhleli ongumsunguli we-RealClearScience.
UMkhandlu WaseMelika Wesayensi Nezempilo uyinhlangano yocwaningo nezemfundo esebenza ngaphansi kwesigaba 501(c)(3) seKhodi Yemali Engenayo Yangaphakathi. Iminikelo ayikhokhiswa intela ngokuphelele. I-ACSH ayinayo iminikelo. Siqoqa imali ikakhulukazi kubantu ngabanye nasezisekelweni minyaka yonke.
Isikhathi sokuthumela: Jun-15-2023
