Publications by authors named "Si-qun Zhang"
Photocatalytic coupling technologies have emerged as popular strategies to increase the treatment efficiency of dye-containing wastewater. Herein, the Z-scheme CoO/BiOBr heterojunction (Z-CBH) was constructed and developed as a photocatalytic peroxydisulfate (PDS) activator for the degradation of high-concentration Rhodamine B (RhB). Multiple testing techniques were employed to confirm the formation of Z-CBHs.
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- Fast z-pinch technology efficiently converts electromagnetic energy into radiation, leveraging a significant current to heat plasma and emit soft x-rays.
- A study was conducted to evaluate the effectiveness of a flat spectral response x-ray diode (FSR-XRD) designed to measure x-ray power from a tungsten wire array z-pinch, ensuring careful calibration and use to avoid contamination.
- Comparison of the FSR-XRD measurements with those from a nickel bolometer showed a close agreement within uncertainty margins, indicating reliable diagnostic capabilities for assessing x-ray output across multiple shots.
An unfolding algorithm using parabolic B-splines to smoothly reconstruct the soft x-ray spectra from the measurements of a filtered x-ray diode array is proposed. This array has been fabricated for the study of the soft x ray emitted by Z-pinch plasma. Unfolding results show that for the simulated noise-free blackbody spectra with temperature ranging from 20 to 250 eV, both the spectra and the total power are accurately recovered.
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