Adsorption-photodegradation of humic acid in water by using ZnO coupled TiO2/bamboo charcoal under visible light irradiation

文献类型: 外文期刊

第一作者: Wang, Xuejiang

作者: Wang, Xuejiang;Wu, Zhen;Wang, Wei;Wang, Xin;Bu, Yunjie;Zhao, Jianfu;Wang, Yin

作者机构:

关键词: Titanium dioxide;Bamboo charcoal;Adsorption;Visible light photocatalysis;Humic acid

期刊名称:JOURNAL OF HAZARDOUS MATERIALS ( 影响因子:10.588; 五年影响因子:10.129 )

ISSN: 0304-3894

年卷期: 2013 年 262 卷

页码:

收录情况: SCI

摘要: ZnO coupled TiO2/bamboo charcoal (ZnO-TiO2/BC) was prepared using the sol-gel method combined with microwave irradiation. The ZnO-TiO2/BC and TiO2/BC were characterized by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), N-2 adsorption (BET), and UV-vis diffuse reflectance spectroscopy (UV-vis-DRS). The ZnO dopant promoted the transformation of anatase TiO2 to rutile phase, and a significant red shift of absorption edge was brought out due to the interfacial coupling effect between ZnO and TiO2 particles. The BET specific surface area and total pore volume decreased with ZnO doping, indicating that some micropores were blocked. SEM studies indicated that ZnO was almost uniformly deposited on the surface of the ZnO-TiO2/BC. The adsorption and photocatalytic degradation experiments showed that the photo-degrade efficiency for Zno-TiO2/BC was higher than that of TiO2/BC, and for both composites, the removal efficiency of HA increased as pH decreased from 10.0 to 2.0. The degradation of HA by ZnO-TiO2/BC and TiO2/BC fitted well with the Langmuir-Hinshelwood kinetics model, and HA degradation was achieved through a synergistic mechanism of adsorption and photocatalysis. ZnO-TiO2/BC could be used as an effective and alternative photocatalyst for the treatment of water contaminated by organic pollutants. (C) 2013 Elsevier B.V. All rights reserved.

分类号:

  • 相关文献

[1]Adsorption and photocatalytic degradation of phenol over TiO2/ACF. Fan, CM,Min, YQ,Hao, XG,Sun, YP,Li, XJ,Li, FB. 2003

[2]Enhanced photocatalytic activity of Ce3+-TiO2 for 2-mercaptobenzothiazole degradation in aqueous suspension for odour control. Li, FB,Li, XZ,Hou, MF,Cheah, KW,Choy, WCH.

[3]Adsorption of Cu(II) on humic acids derived from different organic materials. Ji Fan,Zhang Jin-jing,Gao Qiang,Wu Jing-gui,Zhao Lan-po,Wang Shuai,Wang Li-chun,Zheng Li-rong. 2015

[4]The effect of dietary bamboo charcoal supplementation on growth and serum biochemical parameters of juvenile common carp (Cyprinus carpio L.). Mabe, Lerato Tshepiso,Tang, Dan,Dong, Zaijie,Su, Shengyan,Zhu, Wenbin,Dong, Zaijie,Wang, Sunguo. 2018

[5]TiO2 photocatalytic antifungal technique for crops diseases control. Lu, JW,Li, FB,Guo, T,Lin, LW,Hou, MF,Liu, TX. 2006

[6]Effect of gold ion doping on the photo-catalytic properties and photo-activity of TiO2. Li, FB,Li, XZ,Li, XJ,Wan, HF. 2001

[7]Photocatalytic activity of neodymium ion doped TiO2 for 2-mercaptobenzothiazole degradation under visible light irradiation. Li, FB,Li, XZ,Cheah, KR. 2005

[8]An ionic liquid-based nanofluid of titanium dioxide nanoparticles for effervescence-assisted dispersive liquid-liquid extraction for acaricide detection. Wu, Xiaoling,Li, Xin,Yang, Miyi,Zeng, Haozhe,Zhang, Sanbing,Lu, Runhua,Gao, Haixiang,Xu, Donghui,Xu, Donghui.

[9]Characterization of the Excited State on Methanol/TiO_2(110) Interface. Hao Qunqing,Mao Xinchun,Zhou Chuanyao,Ma Zhibo,Ren Zefeng,Dai Dongxu,Yang Xueming. 2015

[10]Mechanisms underlying degradation pathways of microcystin-LR with doped TiO2 photocatalysis. Hu, Xi,Hu, Xinjiang,Tang, Chunfang,Wen, Shizhi,Wu, Xiaofu,Long, Jian,Yang, Xiong,Wang, Hui,Zhou, Lu.

[11]Preparation and Characterizations of TiO2 Nanoparticles by Sol-Gel Process using DMAC Solvent. Zhang, Panpan,Xiang, Jiaqing,Tang, Bing,Xia, Wen,Wang, Fei,Wei, Xiaoyi,Li, Jihua. 2016

[12]Interaction of TiO2 nanoparticles with the marine microalga Nitzschia closterium: Growth inhibition, oxidative stress and internalization. Xia, Bin,Chen, Bijuan,Sun, Xuemei,Qu, Keming,Ma, Feifei,Du, Meirong.

[13]Imidacloprid adsorption by soils treated with humic substances under different pH and temperature conditions. Ping, Lifeng,Zhang, Chunrong,Zhu, Yahong,Wu, Min,Dai, Fen,Hu, Xiuqing,Zhao, Hua,Li, Zhen. 2010

[14]Photoelectrocatalytic degradation of humic acid in aqueous solution using a Ti/TiO2 mesh photoelectrode. Li, XZ,Li, FB,Fan, CM,Sun, YP. 2002

[15]Thermodynamics of Cu2+ Adsorption on soil Humin. Ji, F.,Zhang, J. J.,Wang, S.,Wang, L. C.. 2015

[16]Effects of temperature on soil organic carbon fractions contents, aggregate stability and structural characteristics of humic substances in a Mollisol. Gao, Shuqing,Li, Cuilan,Zhang, Jinjing,Wang, Lichun. 2016

[17]The application of zero-water discharge system in treating diffuse village wastewater and its benefits in community afforestation. Wu, Yonghong,Xia, Lizhong,Hu, Zhengyi,Yang, Linzhang,Wu, Yonghong,Hu, Zhengyi,Liu, Shuzhi,Liu, Hongbin,Nath, Bibhash,Zhang, Naiming.

[18]Comparison of UV/hydrogen peroxide and UV/peroxydisulfate processes for the degradation of humic acid in the presence of halide ions. Lou, Xiaoyi,Xiao, Dongxue,Fang, Changling,Wang, Zhaohui,Liu, Jianshe,Guo, Yaoguang,Lu, Shuyu,Xiao, Dongxue,Guo, Yaoguang.

[19]Evaluation of humic substances during co-composting of sewage sludge and corn stalk under different aeration rates. Li, Shuyan,Li, Danyang,Li, Guoxue,Zhang, Bangxi,Li, Jijin,Zhang, Bangxi.

[20]Moisture Effect on Soil Humus Characteristics in a Laboratory Incubation Experiment. Li, Cuilan,Gao, Shuqing,Zhang, Jinjing,Zhao, Lanpo,Li, Cuilan,Gao, Shuqing,Zhang, Jinjing,Zhao, Lanpo.

作者其他论文 更多>>