| Title of Article |
Insight into the photocatalytic reduction of hexavalent chromium using photodeposited metal nanoparticle-TiO2 photocatalysis |
| Date of Acceptance |
4 December 2022 |
| Journal |
| Title of Journal |
Environmental Science and Pollution Research |
| Standard |
ISI |
| Institute of Journal |
Springer Nature |
| ISBN/ISSN |
ISSN1614-7499 |
| Volume |
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| Issue |
|
| Month |
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| Year of Publication |
2022 |
| Page |
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| Abstract |
Hexavalent chromium (Cr(VI)) is carcinogenic to organisms. It is widely used in several industries. In this work, we investigated the Cr(VI) photocatalytic reaction with a scavenger on Pt and Cu-TiO2 photocatalysts. Metal-deposited TiO2 was
successfully synthesized by a photodeposition method. TEM-EDX, XRD, and UV-DR were analyzed to study the changes in
morphology, crystallinity, and the electronic properties of photocatalysts. The rate of charge recombination during reduction
and photoluminescence (PL) spectroscopy was used to examine the catalysts in depth. Cu-TiO2 demonstrates the highest
photocatalytic activity for 63.74% of Cr(VI) removal. To understand the photoreduction of Cr(VI), the fate transformation
of Cr species during the adsorption and reaction was investigated using in situ XANES. The results demonstrated that the
Cr(III) was noticeably main component adsorbed over the catalyst, particularly in Cu˗TiO2. The presence of humic acid can
boost the Cr(VI) removal efciency and enhanced the Cr(VI) reduction to Cr(III). We believe that the extensive research
on Cr(VI) photoreduction on metal-TiO2 heterojunction will provide a comprehensive understanding of catalytic behaviors,
paving the way for rationally designed novel Cr reduction catalysts. |
| Keyword |
CO2 photoreduction; artificial photosynthesis; photodeposition; TiO2; IMPS; charge recombination |
| Author |
|
| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ได้รับการตอบรับให้ตีพิมพ์ |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| ใช้สำหรับสำเร็จการศึกษา |
ไม่เป็น |
| Attach file |
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| Citation |
0
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Publication
Journal Publication
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