Preparation of a Bi2WO6 catalyst and its catalytic performance in an alpha alkylation reaction under visible light irradiation
作者:Xiaoling Liu、Haiying Li、Jingjing Ma、Xiujuan Yu、Yan Wang、Jingyi Li
DOI:10.1016/j.mcat.2019.01.018
日期:2019.4
valence states of the catalysts. Then, the catalysts were used to catalyze the alpha alkylation reaction of benzyl alcohol and acetophenone to obtain 1,3-diphenyl-1-propenone under visible light irradiation, and the photocatalytic reaction conditions were optimized. To expand the applicable range of alpha alkylation, the influence of different alcohols and different ketone derivatives on the photocatalytic
在这项研究中,使用Bi(NO 3)3 •5H 2 O和Na 2 WO 4 •2H 2通过水热法合成了不同类型的Bi 2 WO 6催化剂。以O为前体,以及各种表征方法,例如X射线衍射(XRD),X射线光电子能谱(XPS),扫描电子显微镜(SEM),透射电子显微镜(TEM),紫外-可见漫反射光谱(UV) –vis DRS),Brunauer-Emmett-Teller(BET)比表面积测量和光致发光(PL)分析,用于表征催化剂的形态,结构和价态。然后,在可见光照射下,用该催化剂催化苯甲醇与苯乙酮的α烷基化反应,得到1,3-二苯基-1-丙烯酮,并优化了光催化反应条件。为了扩大α烷基化的适用范围,确定了不同的醇和不同的酮衍生物对光催化反应的影响。Ò 2 - ),空穴(h +)和电子(e -的反应过程中产生的))进行了测试。