In this study, a catalyst was synthesized by introduction of ZnO onto the surface of FSM-16 catalyst support (ZnO/FSM-16). Impregnation of catalyst support by ZnO proceeded through reacting of FSM-16 nanoparticles with Zn(CH3COO)2 solution followed by calcination of the product. The synthesized photocatalyst was then identified by different methods, and the optical property of the photocatalyst was studied by the DRS method. The results showed that after deposition of photocatalyst on FSM-16 support, the photocatalyst band gap was shifted to the visible region. The photoluminescence studies revealed lower recombination of electron–holes of the photocatalyst after immobilization on FSM-16. The influence of different variables on the photocatalytic performance of the samples was studied. Under optimized conditions, the high degradation efficiency of 97% was obtained by ZnO/FSM-16. The compounds produced from degradation of benzothiophene were recognized by the GC–MS method, and the products containing sulfur were properly adsorbed by MCM-41 sorbent. The photocatalyst showed high regeneration capability, and its activity was mostly preserved after six regeneration cycles.
在本研究中,通过将ZnO引入到FSM-16催化剂载体(ZnO/FSM-16)的表面来合成催化剂。 ZnO 对催化剂载体的浸渍是通过 FSM-16 纳米颗粒与 Zn(CH3COO)2 溶液反应,然后煅烧产物来进行的。然后通过不同的方法对合成的光催化剂进行了鉴定,并通过DRS方法研究了光催化剂的光学性质。结果表明,在FSM-16载体上沉积光催化剂后,光催化剂带隙移动到可见光区域。光致发光研究表明,固定在 FSM-16 上后,光催化剂的电子-空穴
重组率较低。研究了不同变量对样品光催化性能的影响。在优化条件下,ZnO/FSM-16的降解效率高达97%。 GC-MS方法识别了
苯并噻吩降解产生的化合物,并且MC
M-41吸附剂对含
硫产物进行了适当的吸附。该光催化剂表现出较高的再生能力,6次再生循环后其活性基本保持不变。