Negative ion release type activated carbon composite purification material and preparation method thereof
By introducing core-shell structured upconversion nanoparticles and bismuth iodide/bismuth ferrite heterojunctions into activated carbon composite materials, near-infrared light is used to excite photogenerated charges and improve separation efficiency. This solves the problem of catalytic stagnation of traditional activated carbon composite materials under light-free conditions, and achieves all-weather, high-efficiency pollutant degradation.
CN121490518BActive Publication Date: 2026-07-21BEIJING ZHONGOU PURUI TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING ZHONGOU PURUI TECH CO LTD
- Filing Date
- 2025-11-13
- Publication Date
- 2026-07-21
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Abstract
The application provides a kind of negative ion release type activated carbon composite purification material and its preparation method, belongs to activated carbon composite purification material technical field.The application constructs a kind of efficient composite purification material: first, porous and after nitrogen doped modification aerogel base is responsible for efficient adsorption of pollutants and as firm load platform.Subsequently, up-conversion nanoparticles convert near-infrared light in the environment into high-energy ultraviolet / blue light as an internal light source to excite piezoelectric heterojunction to generate photo-generated charges.Under the disturbance of air flow, the piezoelectric effect in the heterojunction generates a strong electric field, which improves the separation efficiency of photo-generated charges;finally, the efficiently separated electrons reduce oxygen to superoxide silver ions and other negative active species, which synergistically degrade the adsorbed pollutants. Efficiently utilize the low-quality light energy and mechanical energy in the environment.
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