| dc.creator |
Elma, Muthia |
|
| dc.date.accessioned |
2020-06-15T04:00:23Z |
|
| dc.date.available |
2020-06-15T04:00:23Z |
|
| dc.identifier |
http://eprints.ulm.ac.id/4381/1/Muthia-zhang2018.pdf |
|
| dc.identifier |
Elma, Muthia Rapid thermally processed hierarchical titania-based hollow fibres with tunable physicochemical and photocatalytic properties. Separation and Purification Technology. |
|
| dc.identifier.uri |
https://repo-dosen.ulm.ac.id//handle/123456789/11713 |
|
| dc.description |
A B S T R A C T
A series of photocatalytic TiO2–carbon composite hollow fibres (HFs) was prepared in this study by a wet-dry
phase inversion spinning method followed by a rapid thermal processing (RTP). The RTP method consists of two
stages: (1) calcination at 800 °C for 15 min encased in a quartz tube followed by (2) a short open heating
exposure at 800 °C for 0 to 7.5 min in air. The innovative two-stage RTP method led to a time saving of more than
90%. Results revealed that the pyrolysis conditions during the second stage of HF fabrication were essential to
the final physical and chemical properties of resultant TiO2-carbon HFs, such as TiO2 crystallinity and carbon
content, mechanical, textural and electronic properties, as well as photocatalytic reactivity. The best results
show that HFs pyrolysed for a short duration (< 2 min) in the second stage produced a high microporous surface
area of 217.8m2·g−1, a good mechanical strength of 11 MPa and a TiO2 anatase-to-rutile (A/R) ratio of 1.534 on
the HF surface. The HFs also achieved a 68% degradation of acid orange 7 dye with a kapp of 0.0147 min−1 based
on a Langmuir-Hinshelwood model during the photocatalysis under UV light. Thus, this work provides a new
synthesis protocol with significant time and cost savings to produce high-quality HFs for wastewater treatment. |
|
| dc.format |
text |
|
| dc.relation |
https://www-sciencedirect-com.ezproxy.snhu.edu/science/article/pii/S1383586618301084 |
|
| dc.relation |
http://eprints.ulm.ac.id/4381/ |
|
| dc.subject |
AI Indexes (General) |
|
| dc.title |
Rapid thermally processed hierarchical titania-based hollow fibres with tunable physicochemical and photocatalytic properties |
|
| dc.type |
Article |
|
| dc.type |
PeerReviewed |
|