Views: 0 Author: Site Editor Publish Time: 2026-03-26 Origin: Site
Nano-crystalline material is a non-metallic mineral that exhibits adsorptive properties toward harmful gases—such as formaldehyde, benzene, and TVOCs—generated during interior decoration, as well as toward automotive odors and general indoor pollutants. Laboratory tests have demonstrated that, over a 72-hour period, it achieves a TVOC removal rate of up to 88% and a formaldehyde removal rate of up to 85%. Its primary raw materials consist of attapulgite, sepiolite, and diatomaceous earth, which may be compounded with other natural minerals such as tourmaline and bentonite. Internally, the material features a porous honeycomb structure or an array of ordered nanoscale channels; this architecture results in a large specific surface area and rapid adsorption kinetics. Furthermore, it can be regenerated and reused repeatedly through a desorption process triggered by exposure to sunlight.
1. **Nanoscale Pore Adsorption:** Nanoscale mineral crystals possess a highly ordered microporous internal structure, with pore sizes concentrated within the range of 0.3 to 0.9 nanometers. This range precisely matches the molecular diameters of harmful gases such as formaldehyde and benzene (0.4–0.62 nanometers), thereby enabling their precise capture.
2. **Polar Molecule Selectivity:** The surfaces of the crystalline micropores carry a polar charge, exerting a selective attraction toward polar gaseous compounds present in the air (e.g., formaldehyde, ammonia, and benzene-series compounds). Consequently, their adsorption rate is significantly faster than that of ordinary non-polar adsorption materials.
3. **Synergistic Mineral Composites:** These materials are typically formulated as composites of various minerals—including sepiolite, attapulgite, and diatomaceous earth. The diatomaceous earth serves to provide adsorption channels, while the attapulgite and sepiolite are responsible for the nanoscale adsorption processes; furthermore, some product variants incorporate tourmaline to enhance catalytic decomposition capabilities.
**Purification Efficiency:** In a sealed laboratory environment, the formaldehyde removal efficiency of certain products can exceed 84.3%; they also demonstrate significant efficacy in eliminating TVOCs and odors. However, in actual home environments, their performance is heavily influenced by factors such as ventilation and temperature.
**Risk of Adsorption Saturation:** Nanocrystalline minerals are adsorption-based materials with a finite adsorption capacity limit. They may reach saturation after approximately one month of use; if not regenerated promptly, they will cease to adsorb and may even begin to re-release previously captured pollutants. **Temperature Sensitivity:** In high-temperature environments (such as a sealed vehicle interior during the summer or a heated room during the winter), adsorbed pollutants may be re-released due to intensified thermal motion. Furthermore, the moisture generated during the decomposition process can clog the material's pores, thereby reducing its subsequent purification efficiency.
**Safety Advisory:** Most reputable products have been tested and certified to be free of heavy metals and secondary pollutants. However, some sources suggest that products containing ingredients such as titanium dioxide may generate trace amounts of oxidative gases when exposed to light. **Pregnant women and individuals with allergies or sensitivities are advised to exercise caution**; priority should be given to products that rely solely on physical adsorption and contain no additives.
**Regeneration and Maintenance Cycle:** It is recommended to perform a desorption and regeneration process every **1–2 months** by exposing the product to direct sunlight for **3–6 hours**. The total service life can extend up to **3–4 years**; however, if you notice a significant decline in odor-reduction effectiveness or observe discoloration of the granules, the product should be replaced immediately.
**Usage Quantity and Application Scenarios:** Generally, it is recommended to use **100–150 grams** per square meter of space. For small enclosed spaces, such as vehicle interiors, placing **2–3 packets** is typically sufficient. For newly renovated areas or environments with high levels of pollution, the dosage should be increased, and usage should be combined with regular window ventilation.
