RETRACTED: Enhanced photocatalytic activity of La and N co-doped TiO2/diatomite composite (Retracted Article)

被引：43
作者：
Chen, Yan [1 ]
Wu, Qiong [1 ]
Zhou, Chao [1 ]
Jin, Qiutong [1 ]
机构：
[1] Liaoning Univ, Coll Environm, Shenyang 110036, Liaoning, Peoples R China
来源：
POWDER TECHNOLOGY | 2017年 / 322卷
基金：
国家高技术研究发展计划(863计划);
关键词：
La/N co-doped; TiO2; Diatomite; Visible light; VISIBLE-LIGHT; TIO2; NITROGEN; IDENTIFICATION; ADSORPTION; ZEOLITES; SURFACES;
D O I：
10.1016/j.powtec.2017.09.026
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
To hinder the recombination process of light-induced electron-hole pairs, as well as extending the absorption edge to visible light region, TiO2 was co-doped by lanthanum (La) and nitrogen (N) elements, and immobilized onto diatomite (LNT/D) via a facile sol-gel method. Its physicochemical-properties such as light absorption range, phase structure and morphology were systematically analyzed. The synergy between two dopants, as well as diatomite and TiO2 were studied. The introduction of La and N narrowed the bandgap of TiO2 and thus extended its light absorption range to visible light region. The adsorption capability of carrier diatomite promoted the overall photodegradation efficiency by attracting target pollutants around photocatalyst TiO2. The photoactivity of LNT/D was evaluated by degradating Rhodamine B (RhB) under visible light. Its photocatalytic mechanism was investigated. LNT/D also indicated excellent photo-stability and recyclability, showing its great potential to be applied in wastewater remediation process. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：296 / 300
页数：5
相关论文
共 15 条
[1]   Visible-light photocatalysis in nitrogen-doped titanium oxides [J].
Asahi, R ;
Morikawa, T ;
Ohwaki, T ;
Aoki, K ;
Taga, Y .
SCIENCE, 2001, 293 (5528) :269-271
[2]   Nitrogen-Doped Titanium Dioxide as Visible-Light-Sensitive Photocatalyst: Designs, Developments, and Prospects [J].
Asahi, Ryoji ;
Morikawa, Takeshi ;
Irie, Hiroshi ;
Ohwaki, Takeshi .
CHEMICAL REVIEWS, 2014, 114 (19) :9824-9852
[3]   Identification of Vertical and Horizontal Configurations for BPE Adsorption on Silver Surfaces [J].
Chen, Tao ;
Pal, Amrita ;
Gao, Jie ;
Han, Yun ;
Chen, Hui ;
Sukhishvili, Svetlana ;
Du, Henry ;
Podkolzin, Simon G. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2015, 119 (43) :24475-24488
[4]   RETRACTED: Magnetic Ce-doped TiO2/NiFe2O4/diatomite ternary composite: Enhanced visible-light-driven photocatalytic performance (Retracted Article) [J].
Chen, Yan ;
Liu, Kuiren .
POWDER TECHNOLOGY, 2017, 313 :44-53
[5]   RETRACTED: Preparation of granulated N-doped TiO2/diatomite composite and its applications of visible light degradation and disinfection (Retracted Article) [J].
Chen, Yan ;
Liu, Kuiren .
POWDER TECHNOLOGY, 2016, 303 :176-191
[6]   Spectroscopic and Computational Study of Cr Oxide Structures and Their Anchoring Sites on ZSM-5 Zeolites [J].
Gao, Jie ;
Zheng, Yiteng ;
Tang, Yadan ;
Jehng, Jih-Mirn ;
Grybos, Robert ;
Handzlik, Jaroslaw ;
Wachs, Israel E. ;
Podkolzin, Simon G. .
ACS CATALYSIS, 2015, 5 (05) :3078-3092
[7]   Identification of molybdenum oxide nanostructures on zeolites for natural gas conversion [J].
Gao, Jie ;
Zheng, Yiteng ;
Jehng, Jih-Mirn ;
Tang, Yadan ;
Wachs, Israel E. ;
Podkolzin, Simon G. .
SCIENCE, 2015, 348 (6235) :686-690
[8]   Controlling Acetylene Adsorption and Reactions on Pt-Sn Catalytic Surfaces [J].
Gao, Jie ;
Zhao, Haibo ;
Yang, Xiaofang ;
Koel, Bruce E. ;
Podkolzin, Simon G. .
ACS CATALYSIS, 2013, 3 (06) :1149-1153
[9]   Preparation of a visible-light-active TiO2 photocatalyst by RF plasma treatment [J].
Ihara, T ;
Miyoshi, M ;
Ando, M ;
Sugihara, S ;
Iriyama, Y .
JOURNAL OF MATERIALS SCIENCE, 2001, 36 (17) :4201-4207
[10]   Synthesis and characterization of thermally stable Sm,N co-doped TiO2 with highly visible light activity [J].
Ma, Yunfei ;
Zhang, Jinlong ;
Tian, Baozhu ;
Chen, Feng ;
Wang, Lingzhi .
JOURNAL OF HAZARDOUS MATERIALS, 2010, 182 (1-3) :386-393
12