The invention provides a method for preparing magnetic
cellulose aerogel from wastepaper, and relates to an
aerogel preparation method. The invention aims at providing a method for preparing regenerated magnetic
cellulose aerogel from the wastepaper. According to the method, the wastepaper material in life is used as a
raw material for preparing a green, ultralight and
highly porous aerogel oil absorbing material. The method comprises the following steps: step one. preparing
regenerated cellulose from wastepaper; step two. preparing
regenerated cellulose aerogel; step three. carrying out hydrophobic modification on the
regenerated cellulose aerogel; and step four. preparing the regenerated magnetic
cellulose aerogel oil absorbing material. The method has the advantages that the magnetic cellulose aerogel oil absorbing material is prepared from the wastepaper in life, the material can be greatly saved, the waste is turned into wealth, the regenerated magnetic cellulose aerogel is simple in a preparation technology, low in cost, convenient to use, capable of effectively absorbing multiple organic solvents and oil matters leaked in water, and high in
absorption rate, the
oil absorption is thorough, the oil absorbing material is nontoxic and harmless and causes very little secondary
pollution, and an adopted magnetic collection method is simple, convenient and easy to use.