Cov kws tshawb fawb tam sim no tau tsim lub qhov rai qhov rai uas yuav pab tiv thaiv cov pa phem hauv tsev hauv nroog xws li Beijing.Ib txoj kev tshawb fawb tsis ntev los no tau ua nyob rau hauv lub nroog tau pom tias cov ntxaij vab tshaus - uas tau txau nrog pob tshab, muaj kuab lom-tapping nanofibers - tau txais txiaj ntsig zoo hauv kev khaws cov pa phem sab nraud, Scientific American qhia.

Cov nanofibers yog tsim los ntawm cov khoom siv nitrogen-muaj polymers.Cov ntxaij vab tshaus yog txau nrog cov fibers siv txoj kev tshuab-spinning, uas tso cai rau ib txheej nyias nyias los npog cov ntxaij vab tshaus.

Cov cuab yeej tiv thaiv kev ua qias tuaj yog lub tswv yim ntawm cov kws tshawb fawb los ntawm Tsinghua University hauv Beijing thiab Stanford University.Raws li cov kws tshawb fawb, cov khoom muaj peev xwm lim tau ntau dua 90 feem pua ​​​​ntawm cov pa phem uas yuav mus los ntawm qhov rais qhov rais.

Cov kws tshawb fawb tau sim tawm cov tshuaj tiv thaiv kev ua qias tuaj hauv Beijing thaum hnub smoggy heev nyob rau lub Kaum Ob Hlis.Thaum lub sijhawm kuaj 12-teev, ib lub qhov rais ib-los ntawm ob-meter tau nruab nrog lub qhov rais screen txheej nrog cov pa phem nanofibers.Lub vijtsam ntse lim tawm 90.6 feem pua ​​​​ntawm cov khoom phom sij.Thaum kawg ntawm qhov kev sim, cov kws tshawb fawb tau yooj yim tuaj yeem so cov khoom phom sij ntawm lub vijtsam.

Cov qhov rais no tuaj yeem tshem tawm, lossis tsawg kawg txo, qhov xav tau rau cov khoom siv hluav taws xob kim, tsis muaj hluav taws xob tsis zoo, tsim nyog hauv cov nroog xws li Beijing.