Selective mesoporous adsorbents for Ag+/Cu2+ separation.
Three different approaches, including (1) manipulating the site chemistry, (2) controlling the spacing between neighbouring sites and (3) altering the adsorbates by the use of chelates, were successfully used to prepare MCM-41 adsorbents with excellent selectivity for silver adsorption from solutions containing copper.
Lam
Koon Fung
KF
Department of Chemical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (SAR-PR China).
Chen
Xinqing
X
Fong
Chi Mei
CM
Yeung
King Lun
KL
D000327:Adsorption; D002412:Cations / Q000737:chemistry; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003300:Copper / Q000737:chemistry / Q000302:isolation & purification*; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry; D012834:Silver / Q000737:chemistry / Q000302:isolation & purification*
D002412:Cations; D012834:Silver; D012822:Silicon Dioxide; D003300:Copper