<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pham, A.L.T.</style></author><author><style face="normal" font="default" size="100%">Sedlak, D.L.</style></author><author><style face="normal" font="default" size="100%">Doyle, F.M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Dissolution of mesoporous silica supports in aqueous solutions: Implications for mesoporous silica-based water treatment processes</style></title><secondary-title><style face="normal" font="default" size="100%">Applied Catalysis B: Environmental</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Advanced Oxidation Processes</style></keyword><keyword><style  face="normal" font="default" size="100%">Alkaline pH</style></keyword><keyword><style  face="normal" font="default" size="100%">Alkalinity</style></keyword><keyword><style  face="normal" font="default" size="100%">Batch experiments</style></keyword><keyword><style  face="normal" font="default" size="100%">Catalytic active sites</style></keyword><keyword><style  face="normal" font="default" size="100%">Column experiments</style></keyword><keyword><style  face="normal" font="default" size="100%">Dissolution</style></keyword><keyword><style  face="normal" font="default" size="100%">Dissolved silica</style></keyword><keyword><style  face="normal" font="default" size="100%">Experiments</style></keyword><keyword><style  face="normal" font="default" size="100%">Fenton reactions</style></keyword><keyword><style  face="normal" font="default" size="100%">Functionalized SBA-15</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydrogen peroxide</style></keyword><keyword><style  face="normal" font="default" size="100%">Initial mass</style></keyword><keyword><style  face="normal" font="default" size="100%">Iron oxides</style></keyword><keyword><style  face="normal" font="default" size="100%">Mesoporous</style></keyword><keyword><style  face="normal" font="default" size="100%">Mesoporous materials</style></keyword><keyword><style  face="normal" font="default" size="100%">Mesoporous Silica</style></keyword><keyword><style  face="normal" font="default" size="100%">Mesoporous silica materials</style></keyword><keyword><style  face="normal" font="default" size="100%">Metallic compounds</style></keyword><keyword><style  face="normal" font="default" size="100%">Oxide surface</style></keyword><keyword><style  face="normal" font="default" size="100%">Silica</style></keyword><keyword><style  face="normal" font="default" size="100%">Silica dissolution</style></keyword><keyword><style  face="normal" font="default" size="100%">Solutions</style></keyword><keyword><style  face="normal" font="default" size="100%">Water treatment process</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.scopus.com/inward/record.uri?eid=2-s2.0-84864817642&amp;doi=10.1016%2fj.apcatb.2012.07.018&amp;partnerID=40&amp;md5=d5d016655ea33a833d45dd210cca2f1b</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">126</style></volume><pages><style face="normal" font="default" size="100%">258-264</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Under pH 7-10 conditions, the mesoporous silica supports proposed for use in water treatment are relatively unstable. In batch experiments conducted in pH 7 solutions, the commonly used support SBA-15 dissolved quickly, releasing approximately 30mg/L of dissolved silica after 2h. In column experiments, more than 45% of an initial mass of 0.25g SBA-15 dissolved within 2 days when a pH 8.5 solution flowed through the column. In a mixed iron oxide/SBA-15 system, the dissolution of SBA-15 changed the iron oxide reactivity toward H 2O 2 decomposition, because dissolved silica deposited on iron oxide surface and changed its catalytic active sites. As with SBA-15, other mesoporous silica materials including HMS, MCM-41, four types of functionalized SBA-15, and two types of metal oxide-containing SBA-15 also dissolved under circumneutral pH solutions. The dissolution of mesoporous silica materials raises questions about their use under neutral and alkaline pH in aqueous solutions, because silica dissolution might compromise the behavior of the material. © 2012 Elsevier B.V.</style></abstract><notes><style face="normal" font="default" size="100%">cited By 26</style></notes></record></records></xml>