Sol-gel synthesis of Er3+:Y3Al5O12/TiO2-Ta2O5/MoO2 composite membrane for visible-light driving photocatalytic hydrogen generation

被引：9

作者：

Zhou, Ying ^{[1
]}

Wei, Shengnan ^{[1
]}

Li, Siyi ^{[1
]}

Liu, Xudong ^{[1
]}

Shu, Xiaoqing ^{[1
]}

Zhang, Xu ^{[1
]}

Zhao, Cheng ^{[1
]}

Qu, Zepeng ^{[2
]}

Fang, Dawei ^{[1
]}

Zhang, Zhaohong ^{[2
]}

Wang, Jun ^{[1
]}

机构：

[1] Liaoning Univ, Coll Chem, Shenyang 110036, Peoples R China

[2] Liaoning Univ, Coll Environm, Shenyang 110036, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 26期

基金：

美国国家科学基金会;

关键词：

Er3+.:Y3Al5O12/TiO2-Ta2O5/MoO2; composite membrane; Visible-light driven photocatalyst; Photocatalytic hydrogen generation; Sol-gel synthesis; Water splitting; THIN-FILMS; TIO2; NANOBELTS; WATER; EVOLUTION; PHOTOANODES; PERFORMANCE; ARRAYS; AU;

D O I：

10.1016/j.ijhydene.2017.05.213

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：

By using TiO2 and Ta2O5 colloids, a stable and efficient visible-light driven photocatalyst, Er3+:Y3Al5O12/TiO2-Ta2O5/MoO2 composite membrane, was successfully prepared via sol-gel dip coating method at room temperature. The XRD, FTIR, SEM, TEM and EDX results confirm that approximately spherical Er3+:Y3Al5O12 nanoparticles were embedded in TiO2-Ta2O5 matrix. UV-vis absorption and PL spectra of Er3+ :Y3Al5O12 were also determined to confirm the visible absorption and ultraviolet emission. The photocatalytic hydrogen generation was carried out by using methanol as sacrificial reagent in aqueous solution under visible-light irradiation. Furthermore, some main influence factors such as heat-treated temperature, heat-treated time and molar ratio of TiO2 and Ta2O5 on visible-light photocatalytic hydrogen generation activity of Er3+:Y3Al5O12/TiO2-Ta2O5/MoO2 composite membrane were studied in detail. The experimental results showed that the photocatalytic hydrogen generation activity of Er3+:Y3Al5O12/TiO2-Ta2O5/MoO2 composite membrane heat-treated at 550 degrees C for 3.0 h was highest when the molar ratio of TiO2 and Ta2O5 was adopted as 1.00:0.50. And that a high level photocatalytic activity can be still maintained after four cycles. In addition, a possible mechanism for the visible -light photocatalytic hydrogen generation of the Er3+:Y3Al5O12/TiO2-Ta2O5/MoO2 membrane was proposed based on PL spectra. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：16362 / 16374

页数：13

共 39 条

[1] A novel photoelectrode from TiO2-WO3 nanoarrays grown on FTO for solar water splitting [J].

Ali, Heba ;

Ismail, Nahla ;

Hegazy, Aiat ;

Mekewi, Mohamed .

ELECTROCHIMICA ACTA, 2014, 150 :314-319

[2] Facile one-pot controlled synthesis of Sn and C codoped single crystal TiO2 nanowire arrays for highly efficient photoelectrochemical water splitting [J].

Aragaw, Belete Asefa ;

Pan, Chun-Jern ;

Su, Wei-Nien ;

Chen, Hung-Ming ;

Rick, John ;

Hwang, Bing-Joe .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 163 :478-486

[3] Semiconductor-based Photocatalytic Hydrogen Generation [J].

Chen, Xiaobo ;

Shen, Shaohua ;

Guo, Liejin ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2010, 110 (11) :6503-6570

[4] Efficient photocatalytic hydrogen evolution from methanol/water splitting over Tm3+,Yb3+:NaYF4-Er3+:Y3Al5O12/MoS2-NaTaO3 nanocomposite particles under infrared-visible light irradiation [J].

Chen, Yang ;

Lu, Chunxiao ;

Tang, Liang ;

Wei, Shengnan ;

Song, Yahui ;

Wang, Jun .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2016, 149 :128-136

[5] Ta2O5-based high-K dielectric thin films from solution processed at low temperatures [J].

Frunza, Raluca C. ;

Kmet, Brigita ;

Jankovec, Marko ;

Topic, Marko ;

Malic, Barbara .

MATERIALS RESEARCH BULLETIN, 2014, 50 :323-328

[6] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].

FUJISHIMA, A ;

HONDA, K .

NATURE, 1972, 238 (5358) :37-+

[7] Enhancement of visible-light photocatalytic activity of Pt supported potassium niobate (Pt-KNbO3) by up-conversion luminescence agent (Er3+:Y3A15O12) for hydrogen evolution from aqueous methanol [J].

Guo, Yuwei ;

Li, Yun ;

Li, Shuguang ;

Zhang, Lei ;

Li, Ying ;

Wang, Jun .

ENERGY, 2015, 82 :72-79

[8] TiO2 modification by gold (Au) for photocatalytic hydrogen (H2) production [J].

Gupta, Bhavana ;

Melvin, Ambrose A. ;

Matthews, Tom ;

Dash, S. ;

Tyagi, A. K. .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2016, 58 :1366-1375

[9] Novel-CdS-nanorod with stacking fault structures: Preparation and properties of visible-light-driven photocatalytic hydrogen production from water [J].

He, Kai ;

Wang, Meng ;

Guo, Liejin .

CHEMICAL ENGINEERING JOURNAL, 2015, 279 :747-756

[10] Recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting [J].

Hisatomi, Takashi ;

Kubota, Jun ;

Domen, Kazunari .

CHEMICAL SOCIETY REVIEWS, 2014, 43 (22) :7520-7535

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