Materials Science in Semiconductor Processing· 2026Q1
Dual-functional (NiPS3 NSs + BP QDs)@In2O3 heterojunction for synergistic photocatalytic degradation of antibiotics and hydrogen evolution
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- Q1SCImago
- 2026year
Short summary
A novel (NiPS3 NSs + BP QDs)@In2O3 composite heterojunction significantly enhances antibiotic degradation and hydrogen production compared to bare In2O3.
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Key points
- A composite photocatalyst, (NiPS3 NSs + BP QDs)@In2O3, was successfully constructed with multi-component heterostructures.
- The composite shows improved visible-light absorption and carrier separation efficiency.
- Optimal degradation rates achieved were 93.8% for sulfamethoxazole (60 min), 96.9% for ampicillin (70 min), and 94.4% for ofloxacin (90 min).
- Mott–Schottky and VB-XPS analyses confirm fast interfacial charge transfer and clarify carrier migration routes.
AI-generated from the title and abstract; the full text is not read.
Abstract
The elimination of emerging organic contaminants and the exploitation of clean hydrogen energy are critical research topics in environmental remediation. Indium oxide (In 2 O 3 ) serves as a promising dual-functional photocatalyst with low resistivity and high catalytic activity, yet bare In 2 O 3 suffers severe recombination of photogenerated carriers to limit its practical performance. In this study, a ternary composite photocatalyst, (NiPS 3 NSs + BP QDs)@In 2 O 3 , was successfully constructed by co-modifying In 2 O 3 with two-dimensional NiPS 3 nanosheets and zero-dimensional black phosphorus quantum dots (BP QDs). A full set of characterizations delivers solid evidence for the formation of multi-component heterostructures. Photocatalytic tests confirm the composite strengthens visible-light absorption and accelerates carrier separation efficiency. Regarding degradation performance, (NiPS 3 NSs(20%) + BP QDs(4%))@In 2 O 3 exhibited optimal activity: the degradation rates of sulfamethoxazole, ampicillin, and ofloxacin reached 93.8% within 60 min, 96.9% within 70 min, and 94.4% within 90 min, respectively. Regarding hydrogen evolution performance, (NiPS 3 NSs(5%) + BP QDs(4%))@In 2 O 3 displayed the highest activity. A noticeable mismatch exists between the optimal cocatalyst dosages for degradation and hydrogen evolution, which reflects distinct functional demands of the two reactions. Mott–Schottky and VB-XPS results indicate fast interfacial charge transfer, and flat-band derived band alignment diagrams are supplied to clarify carrier migration routes.
The authors' abstract, as published at the source. Materials Science in Semiconductor Processing, 2026 · DOI ↗
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Field: Renewable Energy, Sustainability and the Environment
Renewable Energy, Sustainability and the EnvironmentEnergy