王梦兰,贾法龙,张礼知.石英毛细管内壁镀金工艺的研究[J].表面技术,2015,44(2):8-13.
WANG Meng-lan,JIA Fa-long,ZHANG Li-zhi.Study of Gold Deposition on the Inner Wall of Quartz Capillary[J].Surface Technology,2015,44(2):8-13 |
| 石英毛细管内壁镀金工艺的研究 |
| Study of Gold Deposition on the Inner Wall of Quartz Capillary |
| 投稿时间：2014-09-08 修订日期：2015-02-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2015.02.002 |
| 中文关键词: 石英毛细管 内壁镀金 气体拉曼检测 |
| 英文关键词:quartz capillary gold-deposition on inner wall Raman detection of gas |
| 基金项目:国家重大科学仪器设备开发专项子项目(2012YQ16000703) |
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| 中文摘要: |
| 目的 开发出切实可行的石英毛细管内壁镀金工艺,应用于激光拉曼的气体分析检测中。 方法先用石英玻璃片进行镀金工艺研究,经过对羟基化、硅烷化、纳米金颗粒修饰、湿法镀金各步条件参数的确定,获得最佳的镀金工艺方案,再对相关参数进行调整,应用于石英毛细管。 将镀金石英毛细管应用于激光拉曼的气体分析测试中,分析其对散射信号的增强效果。 结果 NaOH 的浓度和毛细管内溶液的流速及时间显著影响纳米金颗粒的吸附沉积。 最佳的石英毛细管内壁镀金工艺为:5 mol/ L NaOH 处理 1min→APTMS/ IPA 烷基化修饰→金溶胶在流速 0. 8 mL/ min 下处理 4 h→含盐酸羟胺的镀金液在流速 0. 8mL/ min 下处理 4 h。 该工艺制得的内壁镀金毛细管用于气体拉曼测试后,可将空气中 N2 相对峰值从148 counts(未镀金毛细管)提高至 480 counts。 结论 制备出的镀金石英毛细管可增强激光拉曼检测气体的信号,为进一步实现气体在线拉曼监测奠定基础。 |
| 英文摘要: |
| Objective To develop feasible gold deposition technology on the inner wall of the quartz capillary, which is used for gas detection and analysis by laser Raman. Methods Gold plating was studied with quartz glass first and an optimal technology was achieved after the determination of condition parameters for hydroxylation, silanization, gold nanoparticles modification and wet plating. Then this process was applied to the quartz capillary after adjustment of relevant parameters. The gilded quartz capillary was used for gas analysis through laser Raman measurements, and the enhancement effect of scattering signals was analyzed. Results The concentration of sodium hydroxide, the flow rate and flow time of solution in the capillary obviously affected the adsorption of gold nanoparticles. The optimal technology for gold plating inside the quartz capillary was as following: 5 mol/ L NaOH treatment for 1 min→APTMS/ IPA alkylated modification→gold sol process at the flow rate of 0. 8 mL/ min for 4 h →treatment with plating liquid containing hydroxylamine hydrochloride for 4 h at the flow rate of 0. 8 mL/ min. The gilded capillary was used for gas Raman tests and the relative peak strength of N2 in the air was increased from 148 counts (without gold plating) to 480 counts. Conclusion By the use of gold-deposited quartz capillary, corresponding signals of gas could be effectively enhanced under laser Raman detection, which lays a foundation for the further in-situ Raman analysis of gas. |
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