化工进展 ›› 2023, Vol. 42 ›› Issue (9): 4791-4798.DOI: 10.16085/j.issn.1000-6613.2022-1974

• 材料科学与技术 • 上一篇    下一篇

废弃墨粉纳米流体的光热特性

张岱凌(), 丁玉梅, 左夏华, 黎昊为, 杨卫民, 阎华, 安瑛()   

  1. 北京化工大学机电工程学院,北京 100029
  • 收稿日期:2022-10-24 修回日期:2022-12-15 出版日期:2023-09-15 发布日期:2023-09-28
  • 通讯作者: 安瑛
  • 作者简介:张岱凌(1998-),男,硕士研究生,研究方向为纳米流体光热转换。E-mail:2020200595@buct.edu.cn
  • 基金资助:
    国家自然科学基金(52176175)

Photothermal characteristics of waste toner nanofluids

ZHANG Dailing(), DING Yumei, ZUO Xiahua, LI Haowei, YANG Weimin, YAN Hua, AN Ying()   

  1. College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2022-10-24 Revised:2022-12-15 Online:2023-09-15 Published:2023-09-28
  • Contact: AN Ying

摘要:

在目前的废弃打印机和硒鼓处理中,废弃墨粉往往被忽略,导致弥散到空气中引发呼吸系统疾病。本文以废弃墨粉为吸光材料进行光热利用,采用两步法制备不同浓度的废弃墨粉-乙二醇苯醚纳米流体,研究其稳定性、光学性能和光热转换性能。结果表明:在不添加任何表面活性剂的情况下,废弃墨粉-乙二醇苯醚纳米流体具有较好的稳定性。添加废弃墨粉颗粒可以降低基液的透光率,增大消光系数,从而提高基液的光吸收能力。在光热转换实验中,每种浓度的废弃墨粉纳米流体都表现出较好的光热转换效果,本实验中最佳质量分数为0.04%,在经过1800s的辐照(辐射强度为1000W/m2)后,全程光热转换效率可达54.95%,比基液乙二醇苯醚提高了90.41%。本研究以期为废弃墨粉的转化与再利用提供新思路。

关键词: 废弃墨粉, 集热介质, 纳米流体, 光学特性, 光热转换

Abstract:

Waste toner is ignored in current disposal of waste printers and toner cartridges, causing diffusion into the air and respiratory diseases. To use waste toner as light absorbing material for photothermal conversion, a two-step method was proposed to prepare waste toner-ethylene glycol phenyl ether nanofluids. The stability, optical properties and photothermal conversion properties were studied. The results indicated that the waste toner-ethylene glycol phenyl ether nanofluids had good stability without adding any surfactant, and the light absorption capacity of the base solution could be improved by adding waste toner particles due to the reduction of light transmittance and increase of extinction coefficient. In the photothermal conversion experiment, all concentration of the waste toner nanofluids showed good photothermal conversion effect. The optimal concentration in this experiment was 0.04% and the photothermal conversion efficiency was 54.95%, which was 90.41% higher than that of base solution. This study hoped to provide a new idea for photothermal conversion and reuse of waste toner.

Key words: waste toner, heat collecting medium, nanofluids, optical properties, photothermal conversion

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