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.
Department of Chemical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (SAR-PR China).
Koon Fung
KF
Lam
Xinqing
X
Chen
Chi Mei
CM
Fong
King Lun
KL
Yeung
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