Al-Incorporated Mesoporous Silica Supported ZnFe2O4 for Photocatalytic Hydrogen Evolution

被引：2

作者：

Chen, Dan ^{[1
]}

Zhang, Yingying ^{[1
]}

Wang, Daoyuan ^{[1
]}

Wang, Weide ^{[2
]}

Xu, Yao ^{[1
]}

Qian, Guangren ^{[1
]}

机构：

[1] Shanghai Univ, Sch Environm & Chem Engn, 99 Shangda Rd, Shanghai 200444, Peoples R China

[2] Shandong Ind Tech Sch, Dept Marine Biochem, 6789 West Ring Rd, Weifang 261053, Peoples R China

来源：

CHEMISTRYSELECT | 2021年 / 6卷 / 34期

关键词：

Al-MCM-41; Hydrogen; Non-noble metal; Photocatalysis; ZnFe2O4; EFFICIENT PHOTODRIVEN REDUCTION; HIERARCHICAL NANOSTRUCTURE; CARBON NANOFIBERS; MODIFIED MCM-41; MICROSPHERES; FERRITE; WATER; DEGRADATION; COCATALYSTS; PERFORMANCE;

D O I：

10.1002/slct.202102163

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Non-noble metal photocatalysts have received widespread attention with the popularity of photocatalytic hydrogen evolution. Here, a brand-new series of ZnFe2O4/Al-MCM-41 photocatalysts were synthesized with a simple hydrothermal strategy and analyzed through various characterizations. The results revealed that 40 % loading of Zinc ferrite (ZnFe2O4) showed the most remarkable hydrogen evolution effect without noble metal decorated. It has a maximum photocatalytic hydrogen evolution of 4525.4 mu mol g(-1) in 3 h, which is about 5.4 times higher than that of pure ZnFe2O4. These results are mainly owing to the loading of Al-MCM-41, which can provide more surface reaction sites and delay the recombination of charges and holes. Moreover, the composite shows good cyclability and stability, with a high hydrogen evolution after three repeated cycles.

引用

页码：9112 / 9119

页数：8

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