دورية أكاديمية
أعرض في EDS

Enhanced photocatalytic H 2 production under visible light on composite photocatalyst (CdS/NiSe nanorods) synthesized in aqueous solution.

التفاصيل البيبلوغرافية
العنوان: Enhanced photocatalytic H 2 production under visible light on composite photocatalyst (CdS/NiSe nanorods) synthesized in aqueous solution.
المؤلفون: Irfan RM; Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, China. Electronic address: Irfan45@mail.ustc.edu.cn., Tahir MH; Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, China., Khan SA; College of Physics and Optoelectronics Engineering, Shenzhen University, Nanhai Avenue, 3688, Shenzhen, Guandong 518060, China. Electronic address: sayedali@szu.edu.cn., Shaheen MA; University of Sargodha, Sargodha 40100, Pakistan., Ahmed G; University of Sargodha, Sargodha 40100, Pakistan., Iqbal S; School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China.
المصدر: Journal of colloid and interface science [J Colloid Interface Sci] 2019 Dec 01; Vol. 557, pp. 1-9. Date of Electronic Publication: 2019 Sep 04.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Academic Press Country of Publication: United States NLM ID: 0043125 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-7103 (Electronic) Linking ISSN: 00219797 NLM ISO Abbreviation: J Colloid Interface Sci Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة: Publication: Orlando, FL : Academic Press
Original Publication: New York.
مستخلص: Cocatalysts play a critical role in the activity and stability of photocatalytic systems. Currently, efficient cocatalysts mainly comprise of expensive noble metals. Herein we report a composite photocatalyst consisting of CdS nanorods (NRs) and noble-metal-free cocatalyst NiSe, which efficiently enhances the hydrogen production activity of CdS NRs under visible light. NiSe was synthesized through a facile aqueous solution method and CdS/NiSe NRs composites were prepared by in situ deposition of NiSe on CdS NRs. This provides increased contact between cocatalyst and photosensitizer leading to enhanced electron transfer at the interface of NiSe and CdS. The current photocatalytic system gave the highest hydrogen evolution rate of 340 µmol h -1 under optimal conditions. The enhanced stability of the system was observed for 30 h of irradiation resulting in 14 mmol of hydrogen evolution. The highest AQY of 12% was observed using the 420 nm monochromatic light. In addition, CdS/NiSe NRs showed significant higher H 2 evolution rate than that of 1.0 wt% loaded CdS/Pt NRs proving NiSe as highly efficient cocatalyst. Photoluminescence spectra and the photocurrent response were used to confirm the efficient charge transfer at the interface of NiSe and CdS nanorods. The work presented here demonstrates the successful use of an inexpensive, non-noble-metal cocatalyst for enhanced photocatalytic hydrogen production.
(Copyright © 2019 Elsevier Inc. All rights reserved.)
فهرسة مساهمة: Keywords: CdS/NiSe; Charge transfer; Cocatalysts; Hydrogen production; Photocatalysis
تواريخ الأحداث: Date Created: 20190911 Date Completed: 20191028 Latest Revision: 20191028
رمز التحديث: 20240513
DOI: 10.1016/j.jcis.2019.09.014
PMID: 31505332
قاعدة البيانات: MEDLINE
الوصف
تدمد:1095-7103
DOI:10.1016/j.jcis.2019.09.014