Preparation and photocatalytic degradation performance of AgI/4A molecular sieves

AgI/4A molecular sieves photocatalysts with different mass ratios were prepared by depositing the silver iodide on the 4A molecular sieve by ion exchange method. When the mass ratio of silver iodide and 4A molecular sieve was 2:1, AgI/4A molecular sieves exhibited enhancing photocatalytic activity than pure AgI and 4A molecular sieves. The degradation rate of methyl orange (MO) dye reached 96.4% at 20 min. The possible mechanism of photodegradation by AgI/4A molecular sieves was proposed.