Lee, Jewon Seong, Sicheon Jin, Soyeong Kim, Jaeyong Jeong, Youngdo Noh, Jaegeun 2024-01-19T11:33:10Z 2024-01-19T11:33:10Z 2022-08-18 2022-07 2079-4991 https://pubs.kist.re.kr/handle/201004/114869 Photocatalysis driven by natural sunlight is an attractive approach to removing pollutants from wastewater. Although TiO2-based photocatalysts using various support nano-materials with high catalytic activity and reusability have been developed for purifying wastewater, the centrifugal separation methods used for the nanocatalysts limit their use for treating large amounts of water. Here, we prepared a TiO2 nano-catalyst supported on a halloysite nanotube (HNT)-encapsulated alginate capsule (TiO2@HNT/Alcap) to recapture the catalysts rapidly without centrifugation. The structure of TiO2@HNT/Alcap was characterized by X-ray diffraction, SEM, and TGA. In our system, the combination of HNTs and alginate capsules (Alcaps) improved the efficiency of adsorption of organic pollutants to TiO2, and their milli = meter scale structure allowed ultra-fast filtering using a strainer. The TiO2@HNT/Alcaps showed similar to 1.7 times higher adsorption of rhodamine B compared to empty alginate capsules and also showed similar to 10 and similar to 6 times higher degradation rate compared to the HNT/Alcaps and TiO2/Alcaps, respectively. English MDPI Strainer-Separable TiO2 on Halloysite Nanocomposite-Embedded Alginate Capsules with Enhanced Photocatalytic Activity for Degradation of Organic Dyes Article 10.3390/nano12142361 1 Nanomaterials, v.12, no.14 Nanomaterials 12 14 Y scie scopus 000834447200001 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article LOW-TEMPERATURE SYNTHESIS WASTE-WATER AQUEOUS-SOLUTION METHYLENE-BLUE NANOTUBES ADSORPTION STABILITY LANTHANUM REMOVAL BEHAVIOR photocatalyst halloysite nanotubes titanium oxide alginate capsule strainer separation photocatalytic effect degradation organic dyes