期刊
MATERIALS
卷 15, 期 18, 页码 -出版社
MDPI
DOI: 10.3390/ma15186325
关键词
photoelectrochemical hydrogen generation; zeolite; serpentine; nanocomposites; hydrothermal approach
类别
资金
- Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia [PNURSP2022R16]
- King Khalid University [RGP.2/156/43]
In this study, a low-cost, high-yield hydrothermal treatment was used to produce nanozeolite, nanoserpentine, and Zeo/Serp nanocomposites. The generated nanostructures showed various morphologies such as nanofibers, nanorods, and hybrid nanofibril/nanorods. The Zeo/Serp (2:1) composite exhibited superior performance as a photoelectrochemical catalyst for solar hydrogen generation compared to its constituents. This research opens up new possibilities for low-cost materials in efficient solar hydrogen production.
In this work, a low-cost, high-yield hydrothermal treatment was used to produce nanozeolite (Zeo), nanoserpentine (Serp), and Zeo/Serp nanocomposites with weight ratios of 1:1 and 2:1. At 250 degrees C for six hours, the hydrothermal treatment was conducted. Various methods are used to explore the morphologies, structures, compositions, and optical characteristics of the generated nanostructures. The morphological study revealed structures made of nanofibers, nanorods, and hybrid nanofibril/nanorods. The structural study showed clinoptilolite monoclinic zeolite and antigorite monoclinic serpentine with traces of talcum mineral and carbonates. As a novel photoelectrochemical catalyst, the performance of the Zeo/Serp (2:1) composite was evaluated for solar hydrogen generation from water splitting relative to its constituents. At -1 V, the Zeo/Serp (2:1) composite produced a maximum current density of 8.44 mA/g versus 7.01, 6.74, and 6.6 mA/g for hydrothermally treated Zeo/Serp (1:1), Zeo, and Serp, respectively. The Zeo/Serp (2:1) photocatalysts had a solar-to-hydrogen conversion efficiency (STH) of 6.5% and an estimated hydrogen output rate of 14.43 mmole/h.g. Consequently, the current research paved the way for low-cost photoelectrochemical catalytic material for efficient solar hydrogen production by water splitting.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据