化工新型材料

化工新型材料 ›› 2026, Vol. 54 ›› Issue (10) : 164-170. DOI: 10.19817/j.cnki.issn1006-3536.2026.10.013

新材料与新技术

WO₃/g-C₃N₄纳米复合材料的制备以及光催化性能研究

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Preparation and photocatalytic performance of WO₃/g-C₃N₄ nanocomposites

Mu Tianyu, Shen Fanbo, Wang Rui, Huang Xiaoqiang, Fu Xiaonan

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Received
2025-10-31
Issue Date	Revised Date
2026-10-13	2025-10-31

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摘要

采用热聚合法制备石墨相氮化碳(g-C₃N₄),并以所制g-C₃N₄为基底,通过水热法调控三氧化钨(WO₃)的负载量,制备WO₃/g-C₃N₄(简称WCN)复合光催化材料。利用各种测试手段对样品的结构、形貌及光学性能进行了表征和测试。结果表明:在光照40min时,g-C₃N₄和WO₃的光降解效率分别为67.51%和24.22%,而WCN系列复合样品的降解率均超过了g-C₃N₄和WO₃,达到了90%以上。因此,适量WO₃的引入可以提高样品的光吸收能力,并在一定程度上降低了光生电子-空穴对的复合率,从而提升了光催化性能。

Abstract

Graphitic phase carbon nitride (g-C₃N₄) was prepared by thermal polymerization.Using g-C₃N₄ as the substrate,the loading amount of tungsten trioxide (WO₃) was regulated by the hydrothermal method to prepare WO₃/g-C₃N₄ (referred to as WCN) composite photocatalysts.The structure,morphology and optical properties of the samples were characterized and tested using various testing methods.The results showed that the photodegradation efficiencies of WCN series composite samples exceeded those of g-C₃N₄ and WO₃,reaching more than 90%,while those of g-C₃N₄ and WO₃ were 67.51% and 24.22% after 40 minutes of illumination,respectively.Analysis of experimental results showed that the introduction of an appropriate amount of WO₃ could improve the light absorption capacity of the samples and reduce the recombination rate of photogenerated electron-hole pairs to a certain extent,thereby improving the photocatalytic performance.

关键词

g-C₃N₄ / WO₃/g-C₃N₄复合光催化剂 / 热聚合法 / 水热法 / 光催化降解

Key words

g-C₃N₄ / WO₃/g-C₃N₄ composite photocatalyst / thermal polymerization method / hydrothermal method / photocatalytic degradation

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WO₃/g-C₃N₄纳米复合材料的制备以及光催化性能研究[J]. 化工新型材料, 2026, 54(10): 164-170 DOI:10.19817/j.cnki.issn1006-3536.2026.10.013

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