[1]蔡云东,吴磊,邵云,等.泡沫陶瓷负载N掺杂TiO2光降解啶酰菌胺实验研究[J].东南大学学报(自然科学版),2016,46(5):1027-1031.[doi:10.3969/j.issn.1001-0505.2016.05.022]
 Cai Yundong,Wu Lei,Shao Yun,et al.Experimental study on photocatalytic degradation of boscalid using N-doped TiO2 loaded on foam ceramic[J].Journal of Southeast University (Natural Science Edition),2016,46(5):1027-1031.[doi:10.3969/j.issn.1001-0505.2016.05.022]
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泡沫陶瓷负载N掺杂TiO2光降解啶酰菌胺实验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第5期
页码:
1027-1031
栏目:
化学化工
出版日期:
2016-09-20

文章信息/Info

Title:
Experimental study on photocatalytic degradation of boscalid using N-doped TiO2 loaded on foam ceramic
作者:
蔡云东吴磊邵云王玲玉汤桂勤
东南大学能源与环境学院, 南京 210096
Author(s):
Cai Yundong Wu Lei Shao Yun Wang Lingyu Tang Guiqin
School of Energy and Environment, Southeast University, Nanjing 210096, China
关键词:
水环境修复 二氧化钛 光催化 氮掺杂 啶酰菌胺
Keywords:
water environmental restoration TiO2 photocatalysis nitrogen doping boscalid
分类号:
TQ031.7
DOI:
10.3969/j.issn.1001-0505.2016.05.022
摘要:
利用泡沫陶瓷为载体负载掺氮TiO2作为环境修复材料,对水环境中啶酰菌胺进行降解,以缩短啶酰菌胺在环境中的降解周期.以尿素为氮源,钛酸四异丙酯为Ti源,采用溶胶凝胶法制备掺氮TiO2,负载在表面积较大的泡沫陶瓷上,以300 W氙灯模拟日光光源进行了农药啶酰菌胺的光催化降解实验.考察了煅烧温度、煅烧时间、氮掺杂量、催化剂用量、pH及啶酰菌胺初始浓度对啶酰菌胺降解率的影响,并用XRD,UV-vis对掺氮TiO2样品进行了表征.结果表明,初始浓度为5 mg/L的啶酰菌胺在投加1.0 g/L的掺氮TiO2光催化反应3 h的降解率可达52.35%.掺氮TiO2的制备条件为:氮掺杂量20%,煅烧温度500 ℃,煅烧时间4 h,此时掺氮TiO2呈锐钛矿型.
Abstract:
To shorten the degradation cycle of boscalid in the environment, boscalid in water environment was degradated by using nitrogen-doped TiO2 loaded on foam ceramic as the environmental remediation materials. Taking urea as nitrogen source and tetraisopropyl titanate as Ti source, nitrogen-doped TiO2 loaded on ceramic foam with lager surface area was prepared by sol-gel method, and 300 W xenon lamp was used to simulate sunlight in order to study the process of photocatalytic degradation of boscalid. The effects of calcination temperature, calcination time, nitrogen doping amount, the amount of catalyst, pH and the initial concentration of boscalid on the degradation rate of boscalid were studied, and the nitrogen-doped TiO2 samples were characterized by XRD and UV-vis.The results show that the degradation rate of boscalid with the initial concentration of 5 mg/L can reach 52.35% after the reaction time of 3 h when the dosage of nitrogen-doped TiO2 is 1.0 g/L. The preparation conditions of nitrogen-doped TiO2 are as follows: the nitrogen doped amount is 20%, the calcination temperature is 500 ℃, the calcining time is 4 h, and then the nitrogen-doped TiO2 is anatase.

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备注/Memo

备注/Memo:
收稿日期: 2016-02-22.
作者简介: 蔡云东(1990—),男,硕士生;吴磊(联系人),男,副教授,wulei@seu.edu.cn.
基金项目: “十二五”国家科技支撑计划资助项目(2013BAJ10B12-02).
引用本文: 蔡云东,吴磊,邵云,等.泡沫陶瓷负载N掺杂TiO2光降解啶酰菌胺实验研究[J].东南大学学报(自然科学版),2016,46(5):1027-1031. DOI:10.3969/j.issn.1001-0505.2016.05.022.
更新日期/Last Update: 2016-09-20