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
作者其他论文 更多>>
-
The impact of tea polyphenols on the oxidative stability in Antarctic krill meal during storage: phenomena, substances, and potential mechanism
作者:Yang, Liu;Zhang, Shuaishuai;Wang, Xin;Yang, Liu;Zheng, Yao;Zhang, Quantong;Zhang, Shuaishuai;Guo, Quanyou;Zhang, Quantong
关键词:Tea polyphenols; Addition methods; Lipid oxidation; Molecular docking; Antarctic krill (Euphausia superba)
-
Antibacterial mechanism of vitamin C against Staphylococcus aureus, reduction of toxicity of metabolites and its application in pasteurized milk
作者:Tian, Lei;Huang, Chunyang;Liu, Xing;Zhang, Yuxin;Zhang, Chunling;Wang, Xin;Zhou, Ting;Yu, Ying;Pan, Hu;Dai, Yanna;Pu, Jifeng;Fu, Chengyu;Zhang, Pengfei
关键词:Vitamin C; Staphylococcus aureus; Antibacterial mechanism; Pasteurized milk
-
Whole genome and transcriptome analyses in dairy goats identify genetic markers associated with high milk yield
作者:Zhao, Jianqing;Shi, Chenbo;Kamalibieke, Jiayidaer;Mu, Yuanpan;Zhu, Lu;Wang, Wei;Luo, Jun;Gong, Ping;Lv, Xuefeng
关键词:Dairy goat; Selective signal analysis; Genome-wide association study; Transcriptomic analyses; Milk yield
-
Knockdown of tyrosine hydroxylase gene affects larval survival, pupation and adult eclosion in Plagiodera versicolora
作者:Liu, Xiaolong;Wang, Xin;Zhang, Qi;Lu, Min;Ze, Longji;Zhang, Hainan
关键词:cuticle tanning; mortality;
Plagiodera versicolora ; RNA interference; tyrosine hydroxylase -
Application of stable isotopes and mineral elements fingerprinting for beef traceability and authenticity in inner mongolia of China
作者:Bai, Yang;Wang, Xin;Ha, Liya;Dong, Xin;Guo, Jun;Zhao, Yan;Ao, Qier
关键词:Beef; Stable isotope; Mineral element; Traceability; Authenticity
-
Detection and characterization of bovine hepacivirus in cattle and sheep from Hulunbuir, northeastern China
作者:Ma, Jingge;Liu, Ziyan;Liu, Ning;Wang, Zedong;Ma, Jingge;Wei, Feng;Wei, Zhiwei;Zheng, Xiangyu;Li, Liang;Liu, Ziyan;Wang, Wei
关键词:bovine hepacivirus (BovHepV); sheep; cattle; phylogenetic evolution; China
-
Insect residual streams supplement improves chili pepper growth: Insights into the role of rhizosphere soil microbiome and metabolome
作者:Zhou, Hanghai;Zheng, Xusong;Shen, Qi;Yao, Xiaohong;Sun, Hong;Wang, Xin;Wu, Yifei;Tang, Jiangwu;Zhu, Zhigang;Yang, Chenghu;Li, Hua;Liu, Yuxue;Jiang, Lijia;Zhang, Chunfang
关键词:Insect farming; Insect residual stream; Chili pepper; Plant growth; Rhizosphere microbial community; Metabolic profile