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Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab (ATOMS)
Research Interests
  • Optoelectronic materials synthesis/organic electronics, functionalization of carbonaceous solids, advanced materials chemistry, macromolecular chemistry

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High performance H2O2 production achieved by sulfur-doped carbon on CdS photocatalyst via inhibiting reverse H2O2 decomposition

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Title
High performance H2O2 production achieved by sulfur-doped carbon on CdS photocatalyst via inhibiting reverse H2O2 decomposition
Author
Lee, Jae HwaCho, HyeonjinPark, Sung OHwang, Jeong MinHong, YerinSharma, PankajJeon, Woo CheolCho, YongjoonYang, ChangdukKwak, Sang KyuMoon, Hoi RiJang, Ji-Wook
Issue Date
2021-05
Publisher
ELSEVIER
Citation
APPLIED CATALYSIS B: ENVIRONMENTAL, v.284, pp.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.
URI
https://scholarworks.unist.ac.kr/handle/201301/49843
URL
https://www.sciencedirect.com/science/article/pii/S0926337320311073
DOI
10.1016/j.apcatb.2020.119690
ISSN
0926-3373
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ECHE_Journal Papers
CHM_Journal Papers
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