recycling of rare earth elements from electronic waste. It was demonstrated that SiO2-PdCA can be used for selective recovery of rare earth elements (Y, Eu, Tb) from waste fluorescent lamps. SiO2-PdCA demonstrates high selectivity that allows complete (>95%) recovery of all REE in the presence of 50-fold excess of Ba 2+ ions that is used for analytical determination of REE traces by ICP-MS. Also, SiO2-PdCA is useful for selective adsorption of REE from environmental objects since 200-fold excess of such ions as