▎ 摘　　要

NOVELTY - Modified ZSM-5 molecular sieve comprises graphene oxide and zirconia, where the shape is axial guide hollow column. The relative crystallinity of the modified ZSM-5 molecular sieve is 85 to 120 %, preferably 100 % to 120 %. USE - The modified ZSM-5 molecular sieve is useful for absorbing and removing nitrogen oxides and toluene in waste gas, where the waste gas is used in printing, tar and other industries. ADVANTAGE - The modified ZSM-5 molecular sieve has high nitrogen oxide and toluene removing efficiency. The method is simple, environment-friendly and pollution-free. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of modified ZSM- molecular sieve. DESCRIPTION OF DRAWING(S) - The drawing shows a transmission electron microscope (TEM) of the product.