激光技术, 2020, 44 (2): 148, 网络出版: 2020-04-04
激光对羟基磷酸铜的还原机理研究
Reduction mechanism of laser on copper hydroxyphosphate
激光技术 激光与物质相互作用 纳秒脉冲光纤激光 纳秒脉冲紫外激光 连续光纤激光 羟基磷酸铜 laser technique laser-matter interaction nanosecond pulse fiber laser nanosecond pulse ultraviolet laser continuous fiber laser copper hydroxyphosphate
摘要
为了研究激光选区金属化技术中,激光与尖晶石型化合物的相互作用机理,选用质优价廉、具有尖晶石结构的可见光和近红外光敏催化物质羟基磷酸铜(Cu2(OH)PO4)作为研究对象,利用X射线光电子能谱技术,探讨了波长为1064nm纳秒脉冲光纤激光、连续光纤激光和波长为355nm的纳秒脉冲紫外激光与羟基磷酸铜的相互作用机理。结果表明,3种激光都能将羟基磷酸铜中的+2价铜元素(Cu2+)还原为+1价铜元素(Cu+),但还原过程随激光功率(0.13W~3.89W)或激光能量密度(2.76J/cm2~25.48J/cm2)的变化呈现不同的规律;结合羟基磷酸铜的热性能分析和紫外可见光吸收光谱分析,初步判断,在上述还原过程中,可能同时存在光热反应和光化学反应。该研究为羟基磷酸铜作为一种新型的激光活性物质提供了理论基础。
Abstract
In order to study the interaction mechanism between laser and spinel compounds in laser selective metallization technology, copper hydroxyphosphate (Cu2(OH)PO4), a cheap and high-quality photocatalyst with spinel structure, was selected as research object. The interaction mechanism between nanosecond pulsed fiber laser with 1064nm, continuous wave fiber laser and nanosecond pulsed ultraviolet laser with 355nm wavelength and copper hydroxyphosphate was discussed by using X-ray photoelectron spectroscopy. The results show that, all three lasers can reduce +2 copper element (Cu2+) in copper hydroxyphosphate to +1 copper element (Cu+). The original process varies with laser power (0.13W~3.89W) or laser energy density (2.76J/cm2~25.48J/cm2). Thermal properties and UV-visible absorption spectra of copper hydroxyphosphate were analyzed. In the above reduction process, photothermal and photochemical reactions may exist simultaneously by preliminary judgment. This study provides theoretical basis for copper hydroxyphosphate as new type of laser active material.
靳明明, 刘若钰, 项徽清, 刘建国, 曾晓雁. 激光对羟基磷酸铜的还原机理研究[J]. 激光技术, 2020, 44(2): 148. JIN Mingming, LIU Ruoyu, XIANG Huiqing, LIU Jianguo, ZENG Xiaoyan. Reduction mechanism of laser on copper hydroxyphosphate[J]. Laser Technology, 2020, 44(2): 148.