The synthesis of CdS hierarchical micro-nanostructures with different pore structure and their influence on the photocatalytic ethanol transformation

Author:

Miao Jingjing1,Niu Lu2,Zhang Wanggang2,Li Xiaohong1,Wang Jian2,Liu Yiming2

Affiliation:

1. Taiyuan University of Technology030024

2. Taiyuan University of Technology

Abstract

Abstract Photocatalytic ethanol conversion into high-valuable chemicals while realizing hydrogen production is attractive and challenging. In this study, flower-like, porous flower-like, and net-like CdS nanostructures were prepared by solvothermal technique and used to study the effect of morphology on ethanol conversion. It was found by characterization that the one-dimensional net-like CdS had the best crystallinity and the largest specific surface area, which provided more active sites and possessed superior ethanol conversion activity. The ethanol conversion was 4.7% in 10 h with a hydrogen production rate of 1.32 mmol g− 1 h− 1 and an acetaldehyde (AA) production rate of 1.96 mmol g− 1 h− 1 with a selectivity of 51%. In comparison, 2,3-butanediol(2,3-BDO) was produced at a rate of 0.61 mmol g− 1 h− 1 with a selectivity of 32%. The pore structure of one-dimensional net-like CdS with predominantly large mesopores showed better selectivity for 2,3-BDO, indicating that the pore size of the catalyst plays an important role in the C-C coupling reaction. On this basis, the catalysts were modified by depositing Pt nanoparticles on net-like CdS. Both photocatalytic ethanol conversion performances of the catalysts were substantially improved.

Publisher

Research Square Platform LLC

Reference46 articles.

1. Z. Gao, J. Mu, J. Zhang, Z. Huang, X. Lin, N. Luo and F. Wang J Am Chem Soc 144, 41 (2022)

2. L. Wang, Z. Huang, S. Xie, Q. Zhang, H. Wang and Y. Wang Catalysis Communications 153, (2021)

3. J.-Y. Li, Y.-H. Li, M.-Y. Qi, Q. Lin, Z.-R. Tang and Y.-J. Xu ACS Catalysis 10, 11 (2020)

4. N.M. Eagan, M.D. Kumbhalkar, J.S. Buchanan, J.A. Dumesic and G.W. Huber Nature Reviews Chemistry 3, 4 (2019)

5. X. Cui, R. Huang and D. Deng EnergyChem 3, 1 (2021)

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3