Preparation of a visible light catalyst of novel Bi2WO6 loaded Ag3PO4 heterojunction and its efficient removal of toluene

Preparation of a visible light catalyst of novel Bi2WO6 loaded Ag3PO4 heterojunction and its efficient removal of toluene
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新型Bi2WO6负载Ag3PO4异质结可见光催化剂的制备及其高效去除甲苯

DOI:
10.1080/26395940.2022.2146000
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发表时间:
2022-11
影响因子:
3.3
通讯作者:
Qi Xu
Qi Xu
中科院分区:
环境科学与生态学4区
文献类型:
--
作者:
Qi Zhang;Yuyu Zhu;Liangyun Yu;Xuexing Dong;Yifan Wu;Bairen Yang;Qi Xu

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本文采用水热沉淀法制备了Ag 3 PO 4/Bi 2 WO 6复合光催化剂。通过XRD、XPS、SEM、TEM、HRTEM、BET、UV-vis DRS、PL等手段对材料的结构和形貌进行了表征,并通过可见光下甲苯光催化降解实验,证明了Ag 3 PO 4/Bi 2 WO 6复合材料的光催化性能优于Ag 3 PO 4和Bi 2 WO 6单独使用时的光催化性能,这是由于复合材料有效地分离了电子-空穴对。当Ag 3 PO 4与Bi 2 WO 6的摩尔比为1:2时,在180 min内甲苯的降解率可达80%。该研究为制备廉价高效的可见光降解VOCs纳米复合材料提供了新的思路。
ABSTRACT Herein, a novel photocatalyst of Ag3PO4/Bi2WO6 was developed via hydrothermal and precipitation method. Its structure and morphology was characterized through XRD, XPS, SEM, TEM, HRTEM, BET, UV-vis DRS, PL, and so on. By employing toluene photodegradation experiment under visible light, the photocatalytic performance of Ag3PO4/Bi2WO6 was proved to be better than Ag3PO4 and Bi2WO6 alone due to the efficient separation of electron-hole pairs. When the molar ratio of Ag3PO4 to Bi2WO6 was 1:2, the degradation rate of toluene could reach 80% within 180 min. This study provided a new idea for the simple preparation of cheap and efficient nanocomposite materials for VOCs degradation by visible light.
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