Influence of Sr-doping on the photocatalytic activities of CdS-ZnS solid solution photocatalysts

被引：129
|
作者：
Zhang, Kai [1 ]
Jing, Dengwei [1 ]
Chen, Qingyun [1 ]
Guo, Liejin [1 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shanxi Province, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2010年 / 35卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Photocatalyst; Sr-doped; Charge transfer; Hydrogen production; VISIBLE-LIGHT IRRADIATION; HYDROGEN-PRODUCTION; H-2; EVOLUTION; WATER; ENERGY; TIO2; NATAO3; O-2;
D O I：
10.1016/j.ijhydene.2009.12.143
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Alkaline earth metal Sr was successfully doped into CdS-ZnS solid solutions for the first time The as-prepared photocatalysts were characterized by X-ray Diffraction (XRD), Brunauer-Emmett-Teller (BET) surface areas, UV-vis diffuse reflectance spectra (UV-vis), photoluminescence spectra (PL), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), etc BET characterization indicated that all the prepared samples possessed mesoporous structures with large specific surface areas Photocatalytic H-2 evolution results showed that Sr-doping can efficiently improve the photocatalytic activities while the molar ratio of Zn was greater than 20% in the absence of noble metal as co-catalyst. The correlation between the Zn/Cd ratio of solid solution and the Sr-doping amount was investigated in detail Results showed that the recombination of photoelectrons and holes could be efficiently suppressed by doping metal ions on the shallow surface of CdS-ZnS, which could become the centers of shallow electrons or holes traps, thus significantly improve the efficiency of charge separation (C) 2009 Professor T. Nejat Veziroglu Published by Elsevier Ltd All rights reserved
引用
收藏
页码：2048 / 2057
页数：10
相关论文
共 50 条
  • [21] Size, zeta potential, and semiconductor properties of hybrid CdS-ZnS nanoparticles in a stable aqueous colloidal solution
    Kuznetsova, Yu. V.
    Rempel, A. A.
    RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2017, 91 (06) : 1105 - 1108
  • [22] Large shift in the photoluminescent properties of Mn2+-doped nanosized CdS-ZnS solid solutions
    Arora, Sonia
    Manoharan, Sundar
    SOLID STATE COMMUNICATIONS, 2007, 144 (7-8) : 319 - 323
  • [23] Hydrothermal synthesis of Ni-doped ZnS solid solution photocatalysts for photocatalytic H2 production
    Zhongping Yao
    Xianjin Hou
    Yaqiong He
    Dongqi Li
    Zhaohua Jiang
    Research on Chemical Intermediates, 2019, 45 : 4927 - 4940
  • [24] Hydrothermal synthesis of Ni-doped ZnS solid solution photocatalysts for photocatalytic H2 production
    Yao, Zhongping
    Hou, Xianjin
    He, Yaqiong
    Li, Dongqi
    Jiang, Zhaohua
    RESEARCH ON CHEMICAL INTERMEDIATES, 2019, 45 (10) : 4927 - 4940
  • [25] SILAR synthesis of CdS-ZnS/TiO2 NTs for photocatalytic H2 evolution and dye degradation
    Zheng, Zongneng
    Liu, Di
    Sun, Xinming
    Geng, Ziqian
    Wang, Qingyao
    Hou, Junwei
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2025, 707
  • [26] Solid solutions of CdS and ZnS: Comparing photocatalytic activity and photocurrent generation
    Markovskaya, Dina, V
    Zhurenok, Angelina, V
    Cherepanova, Svetlana, V
    Kozlova, Ekaterina A.
    APPLIED SURFACE SCIENCE ADVANCES, 2021, 4
  • [27] Band energy levels and compositions of CdS-based solid solution and their relation with photocatalytic activities
    Zhang, Guan
    Monllor-Satoca, Damian
    Choi, Wonyong
    CATALYSIS SCIENCE & TECHNOLOGY, 2013, 3 (07) : 1790 - 1797
  • [28] Photocatalytic H2 production of CdS-ZnS over MgO and Al2O3 supported oxides
    Tambwekar, SV
    Reddy, GS
    Kumari, VD
    Subrahmanyam, M
    RECENT ADVANCES IN BASIC AND APPLIED ASPECTS OF INDUSTRIAL CATALYSIS, 1998, 113 : 337 - 340
  • [29] Enhanced photocatalytic degradation of tetracycline antibiotics by reduced graphene oxide-CdS/ZnS heterostructure photocatalysts
    Tang, Yanfeng
    Liu, Xinlin
    Ma, Changchang
    Zhou, Mingjun
    Huo, Pengwei
    Yu, Longbao
    Pan, Jianming
    Shi, Weidong
    Yan, Yongsheng
    NEW JOURNAL OF CHEMISTRY, 2015, 39 (07) : 5150 - 5160
  • [30] MECHANISM OF SOLID-SOLUTION FORMATION IN SYSTEM ZNS-CDS
    DMITRIENKO, AO
    ABALDUEV, BV
    BOLSHAKOV, AF
    KNYAZEV, YV
    INORGANIC MATERIALS, 1977, 13 (11) : 1578 - 1580
12345