通过ZnO/Zn(OH)宏观结构光催化剂从甲醇水溶液中制氢。

Hydrogen production from methanol aqueous solution by ZnO/Zn(OH) macrostructure photocatalysts.

作者信息

Wu Yilun, Zeng Shan, Dong Yanhui, Fu Yunhao, Sun Hang, Yin Shengyan, Guo Xingyuan, Qin Weiping

机构信息

State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University Changchun Jilin 130012 China

Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University Changchun Jilin 130022 P. R. China.

出版信息

RSC Adv. 2018 Mar 22;8(21):11395-11402. doi: 10.1039/c8ra00943k. eCollection 2018 Mar 21.

DOI:10.1039/c8ra00943k

PMID:35542792

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9079143/

Abstract

Photocatalytic H generation was studied for a series of ZnO/Zn(OH) macrostructure photocatalysts. Different ZnO/Zn(OH) macrostructures were prepared through a one-step hydrothermal method by adjusting the pH values of the solution and the concentration of dodecyl sulfate. Three different morphologies of the ZnO/Zn(OH) macrostructure were synthesized and studied using SEM and XRD. The reflectance spectra revealed that the cone shaped ZnO/Zn(OH) macrostructure (ZnO-C) had the lowest reflectivity of UV light. It was found that the photoelectronic properties depend on the morphology of the ZnO/Zn(OH) macrostructures. The photocatalytic activity of these ZnO/Zn(OH) macrostructure hybrids (about 0.070 mmol g h) were higher than that observed for ZnO nanorods (0.050 mmol g h). These results suggest the substantial potential of metal oxide materials with macrostructures in photocatalytic water splitting applications.

摘要

对一系列ZnO/Zn(OH)宏观结构光催化剂的光催化产氢性能进行了研究。通过一步水热法，通过调节溶液的pH值和十二烷基硫酸盐的浓度，制备了不同的ZnO/Zn(OH)宏观结构。利用扫描电子显微镜（SEM）和X射线衍射（XRD）合成并研究了ZnO/Zn(OH)宏观结构的三种不同形态。反射光谱表明，锥形ZnO/Zn(OH)宏观结构（ZnO-C）对紫外光的反射率最低。发现光电子性质取决于ZnO/Zn(OH)宏观结构的形态。这些ZnO/Zn(OH)宏观结构杂化物的光催化活性（约0.070 mmol g-1 h-1）高于ZnO纳米棒（0.050 mmol g-1 h-1）。这些结果表明，具有宏观结构的金属氧化物材料在光催化水分解应用中具有巨大潜力。