Lee, Jae Hwa, Cho, Hyeonjin, Park, Sung O., Hwang, Jeong Min, Hong, Yerin, Sharma, Pankaj  ORCID: https://orcid.org/0000-0003-2319-260X, Jeon, Woo Cheol, Cho, Yongjoon, Yang, Changduk, Kwak, Sang Kyu, Moon, Hoi Ri and Jang, Ji-Wook
2021.
High performance H2O2 production achieved by sulfur-doped carbon on CdS photocatalyst via inhibiting reverse H2O2 decomposition.
Applied Catalysis B: Environmental
284
, 119690.
10.1016/j.apcatb.2020.119690
|
Abstract
Solar production of hydrogen peroxide (H2O2) from oxygen gas and water using photocatalysts is a safe, cost-effective, and eco-friendly method. However, the development of efficient photocatalysts has been impeded by their high decomposition rate of photogenerated H2O2 on the surface of photocatalysts. Here we report CdS/sulfur-doped carbon nanocomposites prepared by adopting a Cd- and S-containing metal-organic framework as a precursor. The intimate contact between the two components provoked their synergetic effect for much better H2O2 production performance than that of commercial CdS, where the hydrophobic sulfur-doped carbon prevent the approach of H2O2 and suppress its decomposition. Resultingly, it recorded H2O2 concentration of 17.1 mM under visible light irradiation in KOH solution with 2-propanol as a hole scavenger, which is the highest value among all the reported photocatalysis systems. This value is sufficiently high to be directly utilized in area of bleaching and acidic waste treatments.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Chemistry Research Institutes & Centres > Cardiff Catalysis Institute (CCI) |
| Publisher: | Elsevier |
| ISSN: | 0926-3373 |
| Date of Acceptance: | 22 October 2020 |
| Last Modified: | 10 Nov 2022 11:15 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/153560 |
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