| 학회 |
한국화학공학회 |
| 학술대회 |
2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터) |
| 권호 |
27권 2호, p.2248 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
A study on the influence of platinum loading methods on oxidized graphitic carbon nitride photocatalysts in photocatalytic hydrogen evolution reaction |
| 초록 |
In this study, we prepared chemically oxidized Pt-containing graphitic carbon nitride (g-C3N4) catalysts by different Pt loading methods and applied them for photocatalytic hydrogen evolution tests. The hydrogen production rate of the chemically oxidized Pt/g-C3N4 photocatalysts prepared by hydrogen reduction (1152.8 µmol/g.h) was highest in comparison with those prepared by chemical reduction (409.9 µmol/g.h) and photodeposition (583.7 µmol/g.h). The different essences of reduction agents in the decoration of Pt on chemically oxidized g-C3N4 can bring about the difference in Pt/g-C3N4 catalysts‘ properties, such as contents of oxygen-containing functional groups, the separation efficiency of photo-excited charges over Pt/g-C3N4, distribution of Pt nanoparticles on the g-C3N4 surface, and valences of Pt co-catalyst. The higher portion of the Pt2+ distribution of Pt particles enhanced the hydrogen evolution rate by suppressing the reversible reaction route of H2 to 2H+ and provided plentiful active sites for H2 evolution reaction. |
| 저자 |
Nguyen Phuong Anh, Dao Duc Quang, 웬티킴안, 왕명연, 김상윤, 신은우
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| 소속 |
울산대 |
| 키워드 |
촉매; 화학공정
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| E-Mail |
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| 원문파일 |
초록 보기 |
