磷钨酸掺杂二氧化钛光催化剂的吸附性能及光催化活性

doi:10.11949/j.issn.0438-1157.20150815

化工学报 ›› 2015, Vol. 66 ›› Issue (9): 3456-3461.DOI: 10.11949/j.issn.0438-1157.20150815

• 催化、动力学与反应器 • 上一篇下一篇

磷钨酸掺杂二氧化钛光催化剂的吸附性能及光催化活性

姚淑华, 陈爽, 邹沛宸, 石磊, 石中亮

沈阳化工大学应用化学学院, 辽宁沈阳 110142

收稿日期:2015-06-03 修回日期:2015-06-13 出版日期:2015-09-05 发布日期:2015-09-05
通讯作者: 石中亮
基金资助:
国家自然科学基金项目(41373127)。

Adsorption performance and photocatalytic activity of H₃PW₁₂O₄₀ doped titanium dioxide photocatalyst

YAO Shuhua, CHEN Shuang, ZOU Peichen, SHI Lei, SHI Zhongliang

College of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, Liaoning, China

Received:2015-06-03 Revised:2015-06-13 Online:2015-09-05 Published:2015-09-05
Supported by:
supported by the National Natural Science Foundation of China (41373127).

摘要/Abstract

摘要：

以钛酸四丁酯和无水乙醇为原料,采用溶胶-凝胶法制备了磷钨酸掺杂二氧化钛(H₃PW₁₂O₄₀-TiO₂)光催化剂,并利用XRD、SEM、DRS等对掺杂前后二氧化钛的结构进行了表征。在光催化实验初期的暗反应之后,发现H₃PW₁₂O₄₀-TiO₂光催化剂的吸附效果很好。对H₃PW₁₂O₄₀-TiO₂光催化剂的吸附性能进行了研究,结果表明,相比于Freundlich方程,Langmuir方程能更好地描述其吸附平衡。H₃PW₁₂O₄₀-TiO₂光催化剂与纯TiO₂相比有更好的吸附性能,吸附时间为70 min的条件下H₃PW₁₂O₄₀-TiO₂对亚甲基蓝(MB)的脱色率可达90%以上。通过自行设计的光催化反应器考察了光催化剂用量、磷钨酸掺杂量等因素对光催化降解MB性能的影响。结果表明:H₃PW₁₂O₄₀-TiO₂在紫外和可见光区域有较强的吸收,对MB溶液具有更好的光催化降解效果,而且该复合材料有较高的循环回收利用率。

关键词: 磷钨酸, 二氧化钛, 亚甲基蓝, 吸附, 催化, 光催化活性, 实验验证

Abstract:

A series of titanium dioxide (TiO₂) photocatalysts doped with H₃PW₁₂O₄₀ were synthesized by sol-gel method using tetrabutyltitanate [Ti(OC₄H₉)₄] and H₃PW₁₂O₄₀ as precursors. The as-prepared photocatalyst was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-vis adsorption spectroscopy. The adsorption performances and photocatalytic activities of the prepared samples were estimated by measuring the adsorption and degradation rate of methyl blue (MB) in an aqueous solution. The results of MB adsorption showed that H₃PW₁₂O₄₀-doped TiO₂ exhibited higher adsorption performance than pure TiO₂ and the adsorption isotherm of MB on photocatalyst could be described better by Langmuir equation than Freundlich equation. The effects of catalyst dosage and H₃PW₁₂O₄₀-doped content on the photocatalytic degradation of MB were studied. It was shown that the H₃PW₁₂O₄₀-doped TiO₂ had a stronger absorption and could thus be used as an effective catalyst in photo-oxidation reactions. In addition, the possibility of cyclic usage of H₃PW₁₂O₄₀-doped TiO₂ was also confirmed. The photocatalytic activity of the photocatalyst remained was above 88% of that of the fresh sample after being used four times.

Key words: H₃PW₁₂O₄₀, titanium dioxide, methyl blue, adsorption, catalysis, photocatalytic activity, experimental validation

中图分类号:

O643
TB43.1

姚淑华, 陈爽, 邹沛宸, 石磊, 石中亮. 磷钨酸掺杂二氧化钛光催化剂的吸附性能及光催化活性[J]. 化工学报, 2015, 66(9): 3456-3461.

YAO Shuhua, CHEN Shuang, ZOU Peichen, SHI Lei, SHI Zhongliang. Adsorption performance and photocatalytic activity of H₃PW₁₂O₄₀ doped titanium dioxide photocatalyst[J]. CIESC Journal, 2015, 66(9): 3456-3461.

参考文献 15

[1]	Zhao D Y, Sengupta A K. Ultimate removal of phosphate from wastewater using a new class of polymeric ion exchangers [J]. Water Research, 1998, 32(5): 1613-1625.
[2]	Asahi R, Morikawa T, Ohwaki T, Aoki K, Taga Y. Visible light photocatalysis in nitrogen-doped titanium oxides [J]. Science, 2001, 293: 269-271.
[3]	Kurinobu S, Surusaki K, Natui Y. Decomposition of pollutants in waste water using magnetic photocatalyst particles [J]. Journal of Magnetism and Magnetic Materials, 2007, 310: 1025-1027.
[4]	Fujishima A, Rao T N, Tryk D A. Titanium dioxide photocatalysis [J]. Journal of Photochemistry and Photobiology C, 2000, 1: 1-21.
[5]	Ao C H, Lee S C, Yu Y Z, Xu J H. Photodegradation of formaldehyde by photocatalyst TiO2: effects on the presences of NO, SO2 and VOCs [J]. Applied Catalysis B, 2004, 54: 41-50.
[6]	Wu X H, Qin W, Ding X B, et al. Photocatalytic activity of Eu-doped TiO2 ceramic films prepared by microplasma oxidation method [J]. Physics and Chemistry of Solids, 2007, 68(12): 2387-2393.
[7]	Yao S H, Wang X X, Guo M, Shi Z L. Preparation and photocatalytic activity of mesoporous TiO2 photocatalyst Co-doped with Fe and H3PW12O40 [J]. Journal of the Chinese Chemical Society, 2015, 62(2): 163-169.
[8]	Wu J C, Chen C H. A visible-light response vanadium-doped titania nanocatalyst by sol-gel method [J]. Journal of Photochemistry and Photobiology A, 2004, 163: 509-515.
[9]	Xu J, Lu M, Guo X, Li H. Zinc ions surface-doped titanium dioxide nanotubes and its photocatalysis activity for degradation of methyl orange in water [J]. Journal of Molecular Catalysis A, 2005, 226: 123-127.
[10]	Wang C, Böttcher C, Bahnemann D W, Dohrmann J K. In situ electron microscopy investigation of Fe(Ⅲ)-doped TiO2 nanoparticles in an aqueous environment [J]. Journal of Nanoparticle Research, 2004, 6: 119-122.
[11]	Li Songtian(李松田), Wu Chundu(吴春笃), Yan Yongsheng(闫勇胜), et al.Photodegradation of organic contaminant by heteropoly acid [J]. Progress of Chemisstry(化学进展), 2008, 20(5): 690-697.
[12]	Tao Guozhong(陶国忠), Qin Juan(秦娟), Chen Aiping(陈爱平). Preparation and photocatalytic activity of supported phosphotungstic acid catalyst [J]. Technology of Water Treatment(水处理技术), 2011, 37(10): 32-36.
[13]	Chen Y X, Wang K, Lou L P. Photodegradation of dye pollutants on silica gel supported particles under visible light irradiation TiO2 [J]. Journal of Photochemistry and Photobiology A, 2004, 163(1/2): 281-287.
[14]	Zhu Y, Xu S, Yi D. Photocatalytic degradation of methyl orange using polythiophene/titanium dioxide composite [J]. Reactive Functional Polymers, 2010, 70(5): 282-287.
[15]	Yao Shuhua(姚淑华), Hua Li(华丽), Shi Zhongliang(石中亮). Preparation and photocatalytic performance of TiO2-coated natural zeolite in degradation of papermaking wastewater [J]. Chinese Journal of Process Engineering(过程工程学报), 2007, 7(4): 712-717.

磷钨酸掺杂二氧化钛光催化剂的吸附性能及光催化活性

Adsorption performance and photocatalytic activity of H₃PW₁₂O₄₀ doped titanium dioxide photocatalyst

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 15

相关文章 15

编辑推荐

Metrics

本文评价

[1]	晁京伟, 许嘉兴, 李廷贤. 基于无管束蒸发换热强化策略的吸附热池的供热性能研究[J]. 化工学报, 2023, 74(S1): 302-310.
[2]	李艺彤, 郭航, 陈浩, 叶芳. 催化剂非均匀分布的质子交换膜燃料电池操作条件研究[J]. 化工学报, 2023, 74(9): 3831-3840.
[3]	程业品, 胡达清, 徐奕莎, 刘华彦, 卢晗锋, 崔国凯. 离子液体基低共熔溶剂在转化CO₂中的应用[J]. 化工学报, 2023, 74(9): 3640-3653.
[4]	陈杰, 林永胜, 肖恺, 杨臣, 邱挺. 胆碱基碱性离子液体催化合成仲丁醇性能研究[J]. 化工学报, 2023, 74(9): 3716-3730.
[5]	范孝雄, 郝丽芳, 范垂钢, 李松庚. LaMnO₃/生物炭催化剂低温NH₃-SCR催化脱硝性能研究[J]. 化工学报, 2023, 74(9): 3821-3830.
[6]	杨学金, 杨金涛, 宁平, 王访, 宋晓双, 贾丽娟, 冯嘉予. 剧毒气体PH₃的干法净化技术研究进展[J]. 化工学报, 2023, 74(9): 3742-3755.
[7]	吴雷, 刘姣, 李长聪, 周军, 叶干, 刘田田, 朱瑞玉, 张秋利, 宋永辉. 低阶粉煤催化微波热解制备含碳纳米管的高附加值改性兰炭末[J]. 化工学报, 2023, 74(9): 3956-3967.
[8]	杨欣, 彭啸, 薛凯茹, 苏梦威, 吴燕. 分子印迹-TiO₂光电催化降解增溶PHE废水性能研究[J]. 化工学报, 2023, 74(8): 3564-3571.
[9]	高燕, 伍鹏, 尚超, 胡泽君, 陈晓东. 基于双流体喷嘴的磁性琼脂糖微球的制备及其蛋白吸附性能探究[J]. 化工学报, 2023, 74(8): 3457-3471.
[10]	闫琳琦, 王振雷. 基于STA-BiLSTM-LightGBM组合模型的多步预测软测量建模[J]. 化工学报, 2023, 74(8): 3407-3418.
[11]	盛冰纯, 于建国, 林森. 铝基锂吸附剂分离高钠型地下卤水锂资源过程研究[J]. 化工学报, 2023, 74(8): 3375-3385.
[12]	张瑞航, 曹潘, 杨锋, 李昆, 肖朋, 邓春, 刘蓓, 孙长宇, 陈光进. ZIF-8纳米流体天然气乙烷回收工艺的产品纯度关键影响因素分析[J]. 化工学报, 2023, 74(8): 3386-3393.
[13]	杨菲菲, 赵世熙, 周维, 倪中海. Sn掺杂的In₂O₃催化CO₂选择性加氢制甲醇[J]. 化工学报, 2023, 74(8): 3366-3374.
[14]	李凯旋, 谭伟, 张曼玉, 徐志豪, 王旭裕, 纪红兵. 富含零价钴活性位点的钴氮碳/活性炭设计及甲醛催化氧化应用研究[J]. 化工学报, 2023, 74(8): 3342-3352.
[15]	陈吉, 洪泽, 雷昭, 凌强, 赵志刚, 彭陈辉, 崔平. 基于分子动力学的焦炭溶损反应及其机理研究[J]. 化工学报, 2023, 74(7): 2935-2946.

磷钨酸掺杂二氧化钛光催化剂的吸附性能及光催化活性

Adsorption performance and photocatalytic activity of H3PW12O40 doped titanium dioxide photocatalyst

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 15

相关文章 15

编辑推荐

Metrics

本文评价

Adsorption performance and photocatalytic activity of H₃PW₁₂O₄₀ doped titanium dioxide photocatalyst