| 王春艳,武文慧,史晓敏,赵莹莹,王倩倩.不同形貌ZnS基纳米复合材料的制备及光催化性能[J].分子催化,2021,35(2):141-150 |
| 不同形貌ZnS基纳米复合材料的制备及光催化性能 |
| Preparation and Photocatalytic Properties of ZnS-based Nanocomposite Catalysts with Different Morphologies |
| 投稿时间：2020-07-30 修订日期：2020-12-07 |
| DOI：10.16084/j.issn1001-3555.2021.02.005 |
| 中文关键词: ZnS 半导体 纳米复合材料 光催化产氢 无水乙醇 |
| 英文关键词:ZnS nanocomposite materials photocatalytic hydrogen production anhydrous ethanol |
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| 摘要点击次数: 654 |
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| 中文摘要: |
| 采用常规溶剂热合成方法，分别以正丁胺（CH3（CH2）3NH2），己二胺（NH2（CH2）6NH2）和二乙烯三胺（NH2（CH2）2NH（CH2）2NH2）3种有机胺为模板合成了3种ZnS基纳米复合物：（a） ZnS·（n-BA）x；（b） ZnS·（HMD）x；（c） ZnS·（DETA）x。用TEM、XRD、Uv-Vis分别对其形貌、结构、光学性质进行表征，并通过光催化无水乙醇产氢反应研究了3种复合物的光催化性能。结果表明：3种复合物均由无机ZnS与有机胺模板通过配位键相结合而形成，在3种不同形貌的复合物中，具有一维纳米网状结构的ZnS·（n-BA）x粒径最小、结晶度最大、结构分散度最高，比表面积最大，在紫外光区吸光能力最强，光能利用率最高，而表现出最强的光催化产氢能力，产氢速率为5884.3 μmol·h-1·g-1；具有二维纳米片状结构的ZnS·（HMD）x、ZnS·（DETA）x产氢速率分别为4572.0、4619.5 μmol·h-1·g-1。这些结果证实了有机无机复合材料ZnS·（L）x由于兼具ZnS与有机胺的多重性质而表现出优异的光催化产氢性能，为今后开发高效的光催化产氢材料提供了一定的基础经验。 |
| 英文摘要: |
| Three ZnS based nanocomposites： (a) ZnS·(n-BA)x; (b) ZnS·(HMD)x; (c) ZnS·(DETA)x were synthesized by conventional solvothermal synthesis using n-butylamine (CH3(CH2)3NH2), hexanediamine (NH2(CH2)6NH2) and diethylenetriamine (NH2(CH2)2NH(CH2)2NH2) as templates. Their morphology, structure and optical properties were characterized by TEM, XRD and UV-Vis. The photocatalytic properties of the three complexes were studied by photocatalytic hydrogen production from anhydrous ethanol. The results show that the three complexes are formed by the combination of inorganic ZnS and organic amine templates through coordination bonds. Among the three complexes with different morphologies, ZnS·(n-BA)x with one-dimensional nano network structure has the smallest particle size, the largest crystallinity, the highest structure dispersion, the largest specific surface product, the strongest light absorption capacity in the ultraviolet region, the highest utilization rate of light energy, and the strongest photocatalysis ability, hydrogen production rate was 5884.3 μmol·h-1·g-1; The hydrogen production rate of ZnS·(HMD)x and ZnS·(DETA)x with two-dimensional nanosheets were 4572.0 μmol·h-1·g-1 and 4619.5 μmol·h-1·g-1, respectively. These results confirm that the organic-inorganic composite ZnS·(L)x exhibits excellent photocatalytic hydrogen production performance due to its multiple properties of ZnS and organic amines, which provides some basic experience for the development of efficient photocatalytic hydrogen production materials in the future. |
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