稀土泛指17種特性相似的金屬,較常用在作醫療設備之上,其中一種 (Promethium, Pm)為具放射性的物質。555Please respect copyright.PENANAuuv5N7Good
555Please respect copyright.PENANArUT4VfYuR3
555Please respect copyright.PENANAvcZ4uHAIxK
555Please respect copyright.PENANAJ3E39b2Ooh
雖然它們被稱為稀土,但事實上它們並不真的是如此稀有。555Please respect copyright.PENANAOroQfSjJ1s
圖1圖中的圓點為各種稀土金屬蘊藏量,大部份與錫的含量相約,且遠高於大自然間的水銀含量。555Please respect copyright.PENANANkH29xuZxE
555Please respect copyright.PENANAv2861KEtOx
(圖2)近日有科學家發表文章(Ref2),從需要攝取稀土金屬才能運作的細菌中抽取一種名為Lanmodulin的蛋白質。555Please respect copyright.PENANAWYaf7fbllw
555Please respect copyright.PENANAHoUeukU6h2
555Please respect copyright.PENANA6TdOmEgk6Y
555Please respect copyright.PENANAGI9FKdjKSM
這蛋白質有三大特性,555Please respect copyright.PENANA2donsyWgIx
1.能夠選擇性地黏上稀土金屬,不會黏上銅鋅鎂等非稀土金屬。555Please respect copyright.PENANA87IfDuCBA2
555Please respect copyright.PENANAfQ2fhwBde1
2.攝氏95度下仍然正常運作。555Please respect copyright.PENANA5BwXY0fB2N
555Please respect copyright.PENANAWc0KMFC9WU
3.pH2.5酸性環境仍能正常運作。555Please respect copyright.PENANAPGE4NRQZDm
555Please respect copyright.PENANA2o6jTLYzRU
對比常用的一種金屬提取物質EDTA,Lanmodulin不但之對稀土金屬更具選擇性,而且親和力更高出5-10倍或以上。555Please respect copyright.PENANAR6f1dh6dcT
555Please respect copyright.PENANAuhanCNyFb0
(圖3)電子廢物普遍會溶解在pH3.0的酸性環境使金屬呈離子狀態,有著Lanmodulin的幫助下,舊有的繁複及高能源消耗的提取稀土金屬辦法亦將能逐漸退出市場,各國亦能更有效從各電子儀器中回收稀土金屬,再進一步減少對中國的依賴。555Please respect copyright.PENANA9Ge7lLXJbL
555Please respect copyright.PENANA9irHymddpO
555Please respect copyright.PENANANolVGJ05R6
555Please respect copyright.PENANAZxjMwvKQNl
555Please respect copyright.PENANAEUJEnxTGS3
如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。555Please respect copyright.PENANAqNxLwyRItF
555Please respect copyright.PENANAQqUwOflaMa
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc555Please respect copyright.PENANA8fthtwlyfu
555Please respect copyright.PENANAMdHHHrOjFf
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。555Please respect copyright.PENANAjOQqx7Ulvi
555Please respect copyright.PENANAT6CzStPN9v
Link:555Please respect copyright.PENANAOb2bsap9nW
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio555Please respect copyright.PENANAuLPbePXHSA
555Please respect copyright.PENANAJ2VbqoemcX
555Please respect copyright.PENANAkSMMGaKCVT
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。555Please respect copyright.PENANA9Hfv0wQWMr
555Please respect copyright.PENANAqzkehDbMLt
555Please respect copyright.PENANAiNLEROsbG4
Ref1:https://pubmed.ncbi.nlm.nih.gov/30705185/555Please respect copyright.PENANAyuBW6GfWQm
Ref2:https://pubs.acs.org/doi/10.1021/acs.inorgchem.0c01303555Please respect copyright.PENANAxD7A2Cnb2x