| 학회 | 한국공업화학회 |
| 학술대회 | 2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 | 19권 1호 |
| 발표분야 | 무기재료_포스터 |
| 제목 | Synthesis of SBA-15 in a flow-reactor |
| 초록 | SBA-15, one of mesoporous silica materials, was synthesized from tri-block-copolymer (P123) as a template, tetraethyl orthosilicate (TEOS) as a silica precursor, and hydrochloric acid as a catalyst in a small-size flow reactor. The experimental variables for the reaction were pH (1 - 3), reaction time, temperature, and concentration of P123. The synthesized silica materials were characterized by nitrogen adsorption/desorption experiments at 77 K to obtain BET surface area, average pore size, and pore size distributions. The morphology of the synthesized silica was checked by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HR-TEM). Among all the reaction conditions, the most important ones seem to be pH and reaction time. The synthesis is not successful yet since the formation of (110) and (200) peaks is not complete based on the SBA-15 obtained from a batch reactor. However the BET surface area was sufficiently large comparing with those for conventional silica materials reported in literature. Such results are also partially confirmed by HR-TEM results. |
| 저자 | 이종환, 류성철, 문희 |
| 소속 | 전남대 |
| 키워드 | SBA-15; synthesis of mesoporous silica; small-size flow reactor; characterization; surface morphology |
