title: Facile synthesis of mesoporous silica and titania supraparticles by a meniscus templating route on a superhydrophobic surface and their application to adsorbents.
abstract: Mesoporous silica and titania supraparticles with controllable pore size, particle size, and macroscopic morphology were readily synthesized by a novel synthetic pathway using meniscus templating on a superhydrophobic surface, which is much simpler than well-known emulsion systems. Moreover, we first report that despite the very large radius of droplet curvature on a millimeter scale, supraparticles kept the round cap morphology due to addition of sucrose as a shape preserver as well as a pore-forming agent. In addition, mesoporous silica and titania supraparticles provided good adsorption performance for Acid Blue 25 and Cr(VI), and were easily separated from the solution by using a scoop net after adsorption tests.
authors.affiliation: Energy Materials and Convergence Research Department, Korea Institute of Energy Research (KIER), 152 Gajeongro, Yuseong, Daejeon 305-343, Republic of Korea. dwlee99@kier.re.kr deodor@kier.re.kr.
authors.forename: Dong-Wook
authors.initials: DW
authors.lastname: Lee
authors.forename: Min-Ho
authors.initials: MH
authors.lastname: Jin
authors.forename: Chun-Boo
authors.initials: CB
authors.lastname: Lee
authors.forename: Duckkyu
authors.initials: D
authors.lastname: Oh
authors.forename: Shin-Kun
authors.initials: SK
authors.lastname: Ryi
authors.forename: Jong-Soo
authors.initials: JS
authors.lastname: Park
authors.forename: Jong-Soo
authors.initials: JS
authors.lastname: Bae
authors.forename: Young-Joo
authors.initials: YJ
authors.lastname: Lee
authors.forename: Se-Joon
authors.initials: SJ
authors.lastname: Park
authors.forename: Young-Chan
authors.initials: YC
authors.lastname: Choi
mesh_terms: D000327:Adsorption; D000880:Anthraquinones / Q000737:chemistry; D002857:Chromium / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D049329:Nanostructures / Q000737:chemistry; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
chemical_list: C542340:1-amino-9,10-dihydro-9,10-dioxo-4-(phenylamino)-2-anthracenesulfonic acid; D000880:Anthraquinones; D002857:Chromium; C009495:titanium dioxide; C074702:chromium hexavalent ion; D012822:Silicon Dioxide; D014025:Titanium