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。704Please respect copyright.PENANAx7ZgRolq8K
704Please respect copyright.PENANA4MV9wka4Hy704Please respect copyright.PENANA8DH7kRnTRV
704Please respect copyright.PENANAzNl1IDsVFM
雖然它們被稱為稀土,但事實上它們並不真的是如此稀有。704Please respect copyright.PENANAGnpvHN8KOO
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。704Please respect copyright.PENANA03qmdCXZg6
704Please respect copyright.PENANA1cOBxvhr6m
(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。704Please respect copyright.PENANAiganai0oqR
704Please respect copyright.PENANAfFmGzICXqH704Please respect copyright.PENANAiAS1RNBTOW
704Please respect copyright.PENANAZGXnHlfrS8
這蛋白質有三大特性,704Please respect copyright.PENANAdxjuI4B25F
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。704Please respect copyright.PENANAreWV4LYy3u
704Please respect copyright.PENANARajVllKy9i
2.攝氏95度下仍然正常運作。704Please respect copyright.PENANA2Kfshg65do
704Please respect copyright.PENANAHiAzFKPnNC
3.pH2.5酸性環境仍能正常運作。704Please respect copyright.PENANAfc42spPhjV
704Please respect copyright.PENANATaUjOkfYNe
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。704Please respect copyright.PENANAJO0r5HiTob
704Please respect copyright.PENANAiwctA7AeXw
(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。704Please respect copyright.PENANAjg5jidzaKr
704Please respect copyright.PENANATYxJg0XPZY704Please respect copyright.PENANA17XiMvUXZ2
704Please respect copyright.PENANAWy9uKEBdfw
704Please respect copyright.PENANAyeIn6EOyyx
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。704Please respect copyright.PENANAaZcYILFBGe
704Please respect copyright.PENANALYdo0IwY3f
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/toc704Please respect copyright.PENANAefsHEbTzbH
704Please respect copyright.PENANAbdWy22Hget
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。704Please respect copyright.PENANAZqn2PqfdQ2
704Please respect copyright.PENANAV6TtrBVcN9
Link:704Please respect copyright.PENANA4oO6vuQN9V
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio704Please respect copyright.PENANAeDftPPyKiX
704Please respect copyright.PENANAE1mNOCu9y5
704Please respect copyright.PENANAUMYSnU3GiR
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。704Please respect copyright.PENANAUKjNWSaC2q
704Please respect copyright.PENANAEBJLjHk2U2
704Please respect copyright.PENANAYZ8t4lD3T8
Ref1:https://pubmed.ncbi.nlm.nih.gov/30705185/704Please respect copyright.PENANAbnvV7zlUiD
Ref2:https://pubs.acs.org/doi/10.1021/acs.inorgchem.0c01303704Please respect copyright.PENANAdHbEGlcKig