Adsorptive and Photocatalytic Performance of TiO2/Layered Double Hydroxides in the Removal of Dimthyl Phthalate

详细信息    查看全文 | 下载全文 | 推荐本文 |

• 作者：HUAN Zhu-jianPing-xiao
• 会议时间：2013-10-01
• 关键词：Layered double hydroxides ; TiO2 ; XPS ; Adsorption ; Photocatalysis
• 作者单位：HUAN Zhu-jian(College of Environmental Science and Engineering,South China University of Technology,Guangzhou 510006,China;The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters,Ministry of Education,Guangzhou 510006,China)Ping-xiao(College of Environmental Science and Engineering,South China University of Technology,Guangzhou 510006,China;The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters,Ministry of Education,Guangzhou 510006,China;The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions,China)
• 母体文献：第十一届全国博士生学术年会专题——节能环保与污染防治技术分会场论坛论文集
• 会议名称：第十一届全国博士生学术年会专题——节能环保与污染防治技术分会场论坛
• 会议地点：成都
• 主办单位：中国环境科学学会
• 语种：chi

摘要

The organic layered double hydroxides (LHDs)/TiO2 composites with various mass ratios were prepared by the reconstruction of mixed metal oxides to photodegrade dimethyl phthalate (DMP).The physicochemical properties of the obtained products were analyzed by X-ray diffraction (XRD) spectra,X-ray photoelectron spectra (XPS),UV-vis diffuse reflectance spectroscope and scanning electron microscope (SEM).The results showed that the Ti02 particles and the organic LDHs were combined together through chemical bonds,and TiO2 particles were well distributed on the surface of the interconnecting organic LDHs nano-flakes.According to the experimental results of adsorptive and photodegradation of DMP,the organic LDHs with flaky structure could effectively adsorb the DMP molecules and the adsorption isotherm by the composites modeled well with the Langmuir equation.The enrichment of DMP onto the composites and the external hydroxyl groups of the composites produce a synergistic effect leading to greatly enhance the rate of DMP photocatalytic degradation by the obtained composites.