Preparation and photocatalytic properties of Ti3C2-OH/Bi2WO6 composite photocatalyst

被引：0

作者：

朱源 ^{[1
,2
]}

盛绍顶 ^{[1
]}

潘育松 ^{[1
]}

潘成岭 ^{[1
,2
]}

机构：

[1] 安徽理工大学材料科学与工程学院

[2] 安徽理工大学环境友好材料与职业健康研究院(芜湖)

来源：

功能材料 | 2022年 / 04期

关键词：

水热反应; 光催化; Ti; C; -OH; Bi; WO; 染料废水;

D O I：

暂无

中图分类号：

O643.36 [催化剂]; O644.1 [光化学]; X703 [废水的处理与利用];

学科分类号：

070304 ; 081704 ; 081705 ; 083002 ;

摘要：

以硝酸铋(Bi（NO）·5HO)为铋源、钨酸钠（NaWO·2HO）为钨源以及碱性碳化钛（TiC-OH）为助催化剂，在CTAB的辅助作用下用简易的水热法成功地制备了具有光催化性能复合TiC-OH/BiWO光催化剂，在可见光（300 W氙灯）的照射下，以降解罗丹明B（RhB）染液来评估催化剂的光催化性能，并最终分析其降解机理。结果表明，纯相BiWO在可见光照射20 min后，对污染物降解效率达到了60.8%,而负载助催化剂TiC-OH后，复合物的光催化性能明显提高。具体的，当TiC-OH负载量为20 mg时，复合催化剂20 mg-TiC-OH/BiWO（简记为20 mg-TB）对RhB的降解效率在20 min内达到96%,光降解性能明显优于纯的BiWO。动力学分析表明，纯BiWO动力学常熟为K=0.0262 min,而20 mg-TB的K=0.1239 min,为纯BiWO的4.72倍。我们对催化剂晶体结构和显微形貌进行了分析。为了明确光降解过程中机理，我们进行了活性物种捕获实验，结果表明在有机物的降解过程中，起主要作用的物种为h。

引用

页码：4224 / 4229

页数：6

共 22 条

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