Synthesis and Characterization of CdS Photocatalyst with Different Morphologies: Visible Light Activated Dyes Degradation Study


如何引用文章

全文:

开放存取 开放存取
受限制的访问 ##reader.subscriptionAccessGranted##
受限制的访问 订阅存取

详细

CdS nanoparticles (CdS NPs) and CdS nanoslabs (CdS NSs) were synthesized from the single source (SS) and multi-source (MS) precursors, respectively. Our target was to observe any change in morphology by altering the synthetic route. CdS NPs with spherical morphology (0.2–0.5 µm in diameter) were obtained by using the SS precursor route via the formation of a Cd-complex. CdS NSs (100–200 nm in length, 50–100 nm wide and 25–50 nm in thickness) were obtained by using the MS precursors, by direct addition of the ligand to metal salt. Both NPs and NSs were used for the degradation of four different cationic organic dyes viz., malachite green (MG), methylene blue (MB), rhodamine B (RhB) and methyl violet (MV) under visible light. CdS NPs synthesized from SS precursor exhibited higher photocatalytic activity than CdS NSs fabricated via MS precursor due to spherical morphologies (small size of particles increases the surface area) and higher band gap. On the other hand, CdS NSs show sheet or cube like morphologies. The kinetic study proved that the rate constants for the MG, MB, MV, and RhB degradation by CdS NPs (1.65 × 10–2, 1.25 × 10–2, 1.2 × 10–2, and 1.24 × 10–2 min–1, respectively) are higher than those for CdS NSs (1.45 × 10–2, 1.13 × 10–2, 1.05 × 10–2, 1.14 × 10–2 min–1, respectively). The precursors were characterized by 1H and 13C nuclear magnetic resonance. Phase pattern and composition of CdS were confirmed by X-ray diffraction and energy dispersive X-ray spectroscopy. Morphology and size were confirmed by transmission electron microscopy and scanning electron microscopy.

作者简介

W. Hussain

Department of Chemistry, Quaid-i-Azam University

编辑信件的主要联系方式.
Email: wajidhussain5741@gmail.com
巴基斯坦, Islamabad, 45320

H. Malik

Department of Chemistry, Quaid-i-Azam University

Email: aminbadshah@qau.edu.com
巴基斯坦, Islamabad, 45320

A. Bahadur

Department of Chemistry, Quaid-i-Azam University

Email: aminbadshah@qau.edu.com
巴基斯坦, Islamabad, 45320

R. Hussain

Department of Chemistry, Quaid-i-Azam University

Email: aminbadshah@qau.edu.com
巴基斯坦, Islamabad, 45320

M. Shoaib

Department of Chemistry, Quaid-i-Azam University

Email: aminbadshah@qau.edu.com
巴基斯坦, Islamabad, 45320

Sh. Iqbal

International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering,
Xi’an Jiaotong University

Email: aminbadshah@qau.edu.com
中国, Shaanxi, 710049

H. Hussain

University of Nizwa Chair of Oman’s Medicinal Plants and Marine Natural Products

Email: aminbadshah@qau.edu.com
阿曼, Birkat Al Mauz, P/O Box 33

I. Green

Department of Chemistry and Polymer Sciences, University of Stellenbosch Private Bag X1

Email: aminbadshah@qau.edu.com
南非, MatielandStellenbosch, 7600

A. Badshah

Department of Chemistry, Quaid-i-Azam University

编辑信件的主要联系方式.
Email: aminbadshah@qau.edu.com
巴基斯坦, Islamabad, 45320

H. Li

Key Laboratory of Cluster Sciences of Ministry of Education Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology

Email: aminbadshah@qau.edu.com
中国, Beijing, 102488

补充文件

附件文件
动作
1. JATS XML

版权所有 © Pleiades Publishing, Ltd., 2018