Artificial chloroplast: Au/chloroplast-morph-TiO2 with fast electron transfer and enhanced photocatalytic activity

被引:19
|
作者
Shi, Nan [1 ]
Li, Xiaohui [1 ]
Fan, Tongxiang [1 ]
Zhou, Han [1 ]
Zhang, Di [1 ]
Zhu, Hanxing [2 ]
机构
[1] Shanghai Jiao Tong Univ, Dept Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[2] Cardiff Univ, Sch Engn, Cardiff CF24 3AA, S Glam, Wales
基金
中国国家自然科学基金;
关键词
Artificial photosynthesis; Au/chloroplast-morph-TiO2; Chloroplast; Photocatalysis; Hydrogen production; INDUCED CHARGE SEPARATION; TIO2; PHOTOCATALYST; PHOTOSYNTHESIS; WATER; HYDROGEN; CHLOROPHYLLS; ARRAYS; FILMS;
D O I
10.1016/j.ijhydene.2014.01.187
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
The unique structures and functional features of chloroplasts in green plants provide a promising blueprint for greatly improving solar energy utilization efficiency. In this paper, a prototype of artificial chloroplast, Au/chloroplast-morph-TiO2 with natural chloroplasts' nanostructure and analogous functional features, is provided. The nano-layered structures of chloroplast template inherited in the chloroplast-morph-TiO2 lead to a large reaction area and fast photo-induced electron transfer; cocatalyst Au nanoparticles which work as reaction centers promote photo-induced charge separation and improve the overall photocatalytic activity in hydrogen production; Nitrogen and phosphorus self-doped from the bio-template increase visible light absorption, similar to the antenna pigment. With this new inorganic artificial photosynthetic system, we achieve effective light utilization, fast photo-induced charge separation, high electron transfer, enhanced photocatalytic activity for dye degradation rate and improved H-2 evolution efficiency. This concept provides the inspiration for constructing efficient photocatalysts by imitating the photosynthesis process from both structures and functions. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:5617 / 5624
页数:8
相关论文
共 50 条
  • [21] Understanding promotion of photocatalytic activity of TiO2 by Au nanoparticles
    Amrollahi, Rezvaneh
    Hamdy, Mohamed S.
    Mul, Guido
    JOURNAL OF CATALYSIS, 2014, 319 : 194 - 199
  • [22] Coupling immobilized TiO2 nanobelts and Au nanoparticles for enhanced photocatalytic and photoelectrocatalytic activity and mechanism insights
    Chen, Qinghua
    Liu, Huiling
    Xin, Yanjun
    Cheng, Xiuwen
    CHEMICAL ENGINEERING JOURNAL, 2014, 241 : 145 - 154
  • [23] Spiky TiO2/Au nanorod plasmonic photocatalysts with enhanced visible-light photocatalytic activity
    Sun, Hang
    Zeng, Shan
    He, Qinrong
    She, Ping
    Xu, Kongliang
    Liu, Zhenning
    DALTON TRANSACTIONS, 2017, 46 (12) : 3887 - 3894
  • [24] TiO2/Au/TiO2 plasmonic photocatalyst with enhanced photocatalytic activity and stability under visible-light irradiation
    Wang, Kunlei
    Yoshiiri, Kenta
    Rosa, Lorenzo
    Wei, Zhishun
    Juodkazis, Saulius
    Ohtani, Bunsho
    Kowalska, Ewa
    CATALYSIS TODAY, 2022, 397 : 257 - 264
  • [25] The mechanism of enhanced charge separation and photocatalytic activity for Au@TiO2 core-shell nanocomposite
    Wu, Liangpeng
    Ma, Shexia
    Chen, Peili
    Li, Xinjun
    INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, 2023, 103 (01) : 201 - 211
  • [26] TiO2 coated Au/Ag nanorods with enhanced photocatalytic activity under visible light irradiation
    Zhou, Na
    Polavarapu, Lakshminarayana
    Gao, Nengyue
    Pan, Yanlin
    Yuan, Peiyan
    Wang, Qing
    Xu, Qing-Hua
    NANOSCALE, 2013, 5 (10) : 4236 - 4241
  • [27] Enhanced photocatalytic degradation of methyl orange by Au/TiO2 nanotubes
    Gao, Yuan
    Fan, Xiao-bin
    Zhang, Wen-feng
    Zhao, Qing-shan
    Zhang, Guo-liang
    Zhang, Feng-bao
    Li, Yang
    MATERIALS LETTERS, 2014, 130 : 1 - 4
  • [28] Enhanced photocatalytic activity in TiO 2 mixed phase nanostructures
    Bamola, P.
    Bhoumik, A.
    Dwivedi, C.
    Kaushik, V
    Sharma, H.
    MATERIALS TODAY-PROCEEDINGS, 2020, 28 : 32 - 36
  • [29] Biphase TiO2 Microspheres with Enhanced Photocatalytic Activity
    Pal, Sudipto
    Laera, Anna Maria
    Licciulli, Antonio
    Catalano, Massimo
    Taurino, Antonietta
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2014, 53 (19) : 7931 - 7938
  • [30] Enhanced Photocatalytic Activity of Nb-TiO2 Nanotubes
    Song, Yo-Seung
    Kim, Yena
    Lee, Deuk Yong
    Lee, Myung-Hyun
    Kim, Bae-Yeon
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2017, 17 (11) : 7943 - 7946