▎ 摘　　要

NOVELTY - Moisture power generating device based on regenerated waste fiber comprises cellulose/graphene film (2) is clamped between the two parallel stainless steel net (1) are fixed by screw. The cellulose/graphene film comprises waste paper cellulose/graphene film, old clothes cellulose/graphene film, coconut shell cellulose/graphene film or peanut shell cellulose/graphene film. USE - Used as moisture power generating device based on regenerated waste fiber. ADVANTAGE - The moisture power generating device based on regenerated waste fiber: solves difficulty in large-scale preparation of existing wet gas power generation materials, high cost, complex device structure, and low recycling rate of waste cellulose used as raw material for wet gas power generation; can dissolve, purify and activate solid waste cellulose through a simple method, and adds conductive agent graphene to prepare a regenerated cellulose/graphene film; makes the hydrophilic cellulose and the hydrophobic conductive graphene form a concentration gradient through simple physical mixing, and drives the ionized ions in the moisture power generation film to move in a directional direction thus generates voltage and current output; and reduces the greenhouse gas generated during incineration or landfill of waste cellulose with low recycling rate. DETAILED DESCRIPTION - Moisture power generating device based on regenerated waste fiber comprises cellulose/graphene film (2) is clamped between the two parallel stainless steel net (1) are fixed by screw. The cellulose/graphene film comprises waste paper cellulose/graphene film, old clothes cellulose/graphene film, coconut shell cellulose/graphene film or peanut shell cellulose/graphene film. The preparation of the waste paper cellulose/graphene film comprises (i) mixing the sodium hydroxide, urea and distilled water to prepare solution, freezing the solution to -12 to -15degrees Celsius for 24-48 hours with little ice crystal, adding waste paper into the product, stirring rapidly by glass rod until dissolving to obtain waste paper cellulose gel, the mass ratio of the sodium hydroxide to the distilled water is (7-9):81, the urea to the distilled water is (4-5):27 and the mass ratio of the waste paper to the frozen product is (1-2): 24; (ii) adding graphene oxide hydrogel and hydrazine hydrate into the waste paper cellulose gel, stirring and mixing uniformly in the ventilation cabinet by glass rod to prepare waste paper cellulose/graphene mixed gel, the mass fraction of the graphene oxide in the graphene oxide hydrogel is 0.02-0.021%, the quality of the graphene oxide hydrogel is equal to that of the waste paper cellulose gel and the mass ratio of the volume of the hydrazine hydrate and the graphene oxide hydrogel is (1-2 ml):20 g; (iii) using deionized water to centrifugally wash the waste paper cellulose/graphene mixed gel prepared for 3-4 times, collecting the precipitate, rolling the precipitate into sheet with thickness of 1-1.5 mm by glass rod, freezing and drying sheet for 24-48 hours in the freeze drier to obtain the waste paper cellulose/graphene film. The preparation of the old clothes cellulose/graphene film comprises (1) mixing the sodium hydroxide, urea and distilled water to prepare solution, freezing the solution to -12 to -15degrees Celsius for 24-48 hours to obtain the product with little ice crystal, cutting the old clothes of pure cotton into 2x2 cm2 of small block, adding the product, the mass ratio of the old clothes of pure cotton and the product after freezing is (1-2):24, using glass rod to stir for 2-3 minutes, centrifuging and collecting the precipitate, adding de-ionized water to centrifugally wash for 3-4 times to obtain the primary dissolved short fiber, drying in 60-65degrees Celsius of oven, adding the dried product into the product after freezing, using glass rod to stir for 2-3 minutes to obtain uniformly regenerated old clothes fiber gel, the mass ratio of the dried product to the frozen product is (1-2):24, the mass ratio of the sodium hydroxide to the distilled water is (7-9):81 and the mass ratio of the urea to the distilled water is (4-5):27; (2) adding graphene oxide hydrogel and hydrazine hydrate into the uniformly regenerated old clothes fiber gel, stirring for 30-35 minutes in the ventilation cabinet by glass rod to prepare old clothes cellulose/graphene mixed gel, the mass fraction of the graphene oxide in the graphene oxide hydrogel is 0.02-0.021 %, the quality of the graphene oxide hydrogel is equal to that of the waste paper cellulose gel and the mass ratio of the volume of the hydrazine hydrate and the graphene oxide hydrogel is (1-2 ml): 20g; and (3) using de-ionized water to centrifugally wash the old clothes cellulose/graphene mixed gel for 3-4 times, collecting the precipitate after centrifuging, using glass rod to precipitate, rolling into sheet with thickness of 1-1.5 mm, freezing and drying the sheet for 24-48 hours in the freeze drier to obtain the old clothes cellulose/graphene film. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic representation of the moisture power generating device based on regenerated waste fiber according to the first embodiment. Stainless steel net (1) Cellulose/graphene film (2)