| CdS/C-TiO2复合光催化剂光催化还原CO2性能研究 |
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| 引用本文： | 李贤达,单雯妍,白雪峰.CdS/C-TiO2复合光催化剂光催化还原CO2性能研究[J].化学与粘合,2012(5):13-16,21. |
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| 作者姓名： | 李贤达 单雯妍 白雪峰 |
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| 作者单位： | [1]黑龙江大学化学化工与材料学院,黑龙江哈尔滨150080 [2]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040 |
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| 基金项目： | 黑龙江省科学院科研基金项目 |
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| 摘 要： | 采用沉淀-水热法制备了CdS/C-TiO2系列复合光催化剂,通过XRD、UV-Vis、FESEM、XPS等分析手段对催化剂晶体结构、形貌及光电性能进行了表征,考察了柠檬酸(CA)/TiO2质量比R对CdS/C-TiO2复合光催化剂光催化性能的影响。实验结果表明,碳掺杂影响催化剂的晶体结构及其微观形貌,掺杂后光催化活性显著提高。在紫外光照射下进行光催化还原CO2反应,当CA/TiO2质量比R=3/1时,催化活性最高,还原产物HCOOH和HCHO总收率达到533μmol/(g.h)。
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| 关 键 词： | 碳掺杂 光催化 还原CO2 |
Photocatalytic Reduction of CO2 by CdS/C-TiO2 Composite Photocatalyst |
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| LI Xian-da,SHAN Wen-yan and BAI Xue-feng.Photocatalytic Reduction of CO2 by CdS/C-TiO2 Composite Photocatalyst[J].Chemistry and Adhesion,2012(5):13-16,21. |
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| Authors: | LI Xian-da SHAN Wen-yan and BAI Xue-feng |
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| Affiliation: | 1.College of Chemistry and Material Science, Heilongjiang University, Harbin 150080, China; 2. Institute of Petrochemistry, Heilongiang Academy of Science, Harbin 150040, China) |
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| Abstract: | A series of CdS/C-TiO2 photocatalysts were synthesized via precipitation-hydrothermal method. The crystal structure, morphology and photoelectric properties of above-prepared photoeatalysts were characterized by X-ray diffraction （XRD）, UV-Vis diffusive reflectance spectroscopy （DRS）, field emission scanning electron microscopy （FESEM）, and X-ray photoelectron speetroscopy（XPS）. The influences of quality ratio of citric acid （CA）/TiO2 on photocatalytic activity of CdS/C-TiO2 photocatalysts were investigated. The results demonstrated that C-doping had great effects on the crystal structure and micro-morphology. The photocatalytic activity was enhanced by doping; the highest yield of methanoic acid and methyl aldehyde in the catalytic reduction of CO2 reached 533μmol/（g·h） when the quality ratio of CA to TiO2 was 3/l under the irradiation of UV light. |
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| Keywords: | C doping photocatalytic CO2 reduction |
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