|Table of Contents|

Photocatalytic Degradation of Tetracycline HydrochlorideUsing Bi2Ti2O7/TiO2 Heterojunction(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2017年02期
Page:
149-
Research Field:
·化学·
Publishing date:

Info

Title:
Photocatalytic Degradation of Tetracycline HydrochlorideUsing Bi2Ti2O7/TiO2 Heterojunction
Author(s):
Wang Qiong1; Zhang Zheng1; Cheng Zonghua1; Wang Yuping1; 2
(1.School of Chemistry and Materials Science,Nanjing Normal University,Nanjing 210097,China)(2.Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control,Nanjing 210097,China)
Keywords:
Bi2Ti2O7/TiO2 heterojunction; Tetracycline Hydrochloride; photodegradation; morphologies
PACS:
O643/X7
DOI:
10.3969/j.issn.1001-4616.2017.02.025
Abstract:
The different morphologies Bi2Ti2O7/TiO2 heterojunction(BT-0,BT-5,BT-10)were synthesized by a simple glycerol-assisted alcoholthermal method via control of the volume ratio of glycerol and ethanol. The as-prepared Bi2Ti2O7/TiO2 composites were characterized by XRD,FESEM,Zeta potential and cyclic voltammetry. The adsorption and photocatalytic degradation of tetracycline(TC)were studied by Bi2Ti2O7/TiO2 under the simulated sunlight. The influences of initial pH,the concentration and the amount of catalyst on the removal efficiency of TC were investigated. The results showed that the highest removal rate was performed by the rugby structure Bi2Ti2O7/TiO2 heterojunction(BT-5)with high specific area and pore types. The removal efficiency of 0.05 g/L TC reached 92.4%,99.8% and 97% respectively with 1 g/L BT-0,BT-5 and BT-10 heterojunction and 3h irradiation under irradiation of a 250W halogen lamp and the initial pH of TC solution 8.9. The degradation of TC using Bi2Ti2O7/TiO2 heterojunction obeys the law of apparent first-order dynamics reaction.

References:

[1] 李晓明,王飞,李建勇,等. 饮用水中抗生素污染现状及降解技术研究进展[J]. 食品安全期刊,2016(7):94-95.
[2]唐庆礼,何成达,罗亚红,等. 四环素类抗生素生产废水处理技术进展[J]. 环境科学与管理,2006,31(7):99-102.
[3]刘元望,李兆君,冯瑶,等. 微生物降解抗生素的研究进展[J]. 农业环境科学学报,2016,35(2):212-224.
[4]张方方,魏振康,霍喜. 臭氧高级氧化技术降解水体中抗生素的研究进展[J]. 四川化工,2016,19(2):27-30.
[5]于洪涛,全燮. 纳米异质结光催化材料在环境污染控制领域的研究进展[J]. 化学进展,2009,21(2/3):406-419.
[6]YAO W F,WANG H,XU X H,et al. Photocatalytic property of bismuth titanate Bi2Ti2O7[J]. Applied catalysis A:general,2004,259(1):29-33.
[7]ZHANG Z Y,JIANG C Y,DU P,et al. Synthesis and characterization of Bi2Ti2O7/TiO2 heterojunction by glycerol-assisted alcoholthermal method[J]. Ceramics international,2015,41(3):3 932-3 939.
[8]黄兵华,张晓飞,宋磊,等. TiO2光催化水处理技术综述[J]. 水处理技术,2014,40(3):11-21.
[9]徐缇,陈建林,王仪春,等. Bi2WO6可见光催化降解染料废水实验研究[J]. 环境科学学报,2007,27(9):1 439-1 443.
[10]郭琬. 铋系氧酸盐的形貌调控及其光催化性能研究[D]. 长春:东北师范大学,2015.
[11]张伦. 不同形貌的微纳米Cu2O和Ag3PO4的制备及其光催化性能研究[D]. 徐州:中国矿业大学,2015.
[12]LI J H,HAN M S,GUO Y,et al. Hydrothermal synthesis of novel flower-like BiVO4/Bi2Ti2O7 with superior photocatalytic activity toward tetracycline removal[J]. Applied catalysis A-general,2016,524:105-114.
[13]朱建,曹艳凤,卞振峰,等. 双醇诱导自组装制备多级蛋壳结构TiO2材料及其光催化性能研究[J]. 中国科学:化学,2012,42(11):1 627-1 635.
[14]ZHOU D,YANG H,TU Y F,et al. In situ fabrication of Bi2Ti2O7/TiO2 heterostructure submicron fibers for enhanced photocatalytic activity[J]. Nanoscale research letters,2016,11.
[15]LIU H,CHEN Y J,TIAN G H,et al. Visible-light-induced self-cleaning property of Bi2Ti2O7-TiO2 composite nanowire arrays[J]. Langmuir,2015,31(21):5 962-5 969.
[16]闫世成,罗文俊,李朝升,等. 新型光催化材料探索和研究进展[J]. 中国材料进展,2010,29(1):1-10.
[17]刘松脆,吕康乐,邓克俭,等. 三种不同晶型二氧化钛的制备及光催化性能研究[J]. 影像科学与光化学,2008,26(2):138-147.
[18]PAVLOVIC D M,BABIC S,HORVAT A J M,et al. Sample preparation in analysis of pharmaceuticals[J]. Trac-trends in analytical chemistry,2007,26(6):1 062-1 075.
[19]DAI Z H,LIU S Q,JU H X,et al. Direct electron transfer and enzymatic activity of hemoglobin in a hexagonal mesoporous silica matrix[J]. Biosensors and bioelectronics,2004,19(8):861-867.
[20]CAO T P,LI Y J,WANG C H,et al. Bi4Ti3O12 nanosheets/TiO2 submicron fibers heterostructures:in situ fabrication and high visible light photocatalytic activity[J]. Journal of materials chemistry,2011,21(19):6 922-6 927.
[21]WEI X X,CHEN J W,XIE Q,et al. Distinct photolytic mechanisms and products for different dissociation species of ciprofloxacin[J]. Environmental science and technology,2013,47(9):4 284-4 290.
[22]宋晨怡,胡霞林,尹大强. 四环素在光催化剂TiO2上的吸附研究[J]. 环境化学,2011,30(7):1 291-1 296.
[23]冷文华,成少安,刘鸿,等. 负载型二氧化钛光催化降解苯胺[J]. 环境科学学报,2000,20(4):499-503.
[24]JIAO S J,ZHENG S R,YIN D Q,et al. Aqueous photolysis of tetracycline and toxicity of photolytic products to luminescent bacteria[J]. Chemosphere,2008,73(3):377-382.
[25]周娅. 制备TiO2/Fe2O3/CNTs复合磁性光催化剂及光催化降解四环素类抗生素[D]. 西安:长安大学,2013.
[26]PARRA S,OLIVERO J,PULGARIN C. Relationships between physicochemical properties and photoreactivity of four biorecalcitrant phenylurea herbicides in aqueous TiO2 suspension[J]. Applied catalysis B environmental,2002,36(1):75-85.
[27]葛林科,陈景文,张思玉,等. 水中氟喹诺酮类抗生素加替沙星的光降解[J]. 科学通报,2010,55(11):996-1 001.

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Last Update: 2017-06-30