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纳米ZnO薄膜的制备及其光催化性能郑磊1,鲁道荣1,黄长萍1,吴素贞1(1.安徽省合肥市合肥工业大学化学工程学院)摘 要:采用溶胶-凝胶法制备纳米ZnO,用X射线衍射仪和透射电镜表征纳米ZnO的结构和形貌,制成薄膜研究其光催化性能.结果表明,在450~650℃范围内,随着焙烧温度增加,ZnO的结晶度和晶粒尺寸均增大.纳米ZnO的光催化性能在焙烧温度为650℃时较好.ZnO薄膜(4 cm×2 cm)光催化氧化降解苯酚溶液的适宜条件为苯酚溶液初始浓度0.145g/L,H2O2(30%)用量70.0mL/L,膜的纳米......
掺杂稀土金属对含钛高炉渣光催化性能影响周密1,杨合1,卜二军1,薛向欣1,杨泽健1(1.辽宁省沈阳市东北大学材料与冶金学院)摘 要:含钛高炉渣作为一种光催化材料其量子利用率以及对太阳能的利用率都很低,考虑到稀土元素由于其特殊的电子结构在形成氧化物时具有良好的半导体特性,其金属氧化物的掺杂能在一定程度上改良含钛高炉渣的光催化性能的特点,将掺杂稀土氧化物的含钛高炉渣用于紫外线照射条件下亚甲基蓝溶液的降解试验中,并通过射线衍射(XRD),扫描电子显微镜(SEM)等分析手段检测寻找最佳稀土元素掺杂量.试验结果表明:稀土......
,and the photocatalytic activity of the BiOCl catalyst is comparable to the TiO2-P25 catalyst under the same experiment condition. Key words: BiOCl; photocatalysis; xenon lamp; methyl orange (MO) 1 Introduction Heterogeneous photocatalysis of photocatalyst as an ideal "green" technology, has been attracting increasing interest because of many applications related with H2 production from water......
of photocatalysis and presence of TiO2. TiO2 also had an impact on cement hydration, which was studied by thermal analysis. With 300 W UV illuminations, formaldehyde and benzene were degraded... based materials were fabricated and the degradation efficiency of formaldehyde was measured on building roof under sunlight illumination. Formaldehyde in glass chamber can be degraded thoroughly......
Environmental Photocatalysis, Changsha University2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology摘 要:sunlight, the asprepared Bi2O3/TiO2 nanofibers considerably outperformed Bi2O3 nanoparticles and TiO2......
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High value-added fluorescence upconversion agents-assisted nanosemiconductors for efficient wide spectral response photocatalysis:Exerting energy transfer effect and applicationsKailian Zhang1,Man... Normal University),Fujian Province University5. Research Institute of Photocatalysis,State Key Laboratory of Photocatalysis on Energy and Environment,Fuzhou University摘 要:
demonstrated that was the main active radical in photocatalytic reaction process. Key words: g-C3N4; TiO2; WS2; photocatalysis; liquid-exfoliation; solvothermal method 1 Introduction TiO2 has... using degradation of MO under simulated sunlight irradiation. The photocatalytic degradation mechanism was also tentatively analyzed. 2 Experimental 2.1 Materials All reagents used in the experiments......
of methyl orange and inactivation of Escherichia coli in suspension under the irradiation of the simulated sunlight. The effects of compositions, calcination temperatures, concentration of photocatalysts... calcined at 600 °C is 1.0 g/L, the maximum photocatalytic degradation rate of 98.5% can be obtained in 50 min under the irradiation of the simulated sunlight. Under the same conditions, an inactivation......