Zhao Xinpeng, Huang Caoxing, Xiao Daming, Wang Ping, Luo Xiongfei, Liu Wenbo, Liu Shouxin, Li Jian, Li Shujun, Chen Zhijun
Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Hexing Road 26, Harbin 150040, P. R. China.
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Department of Bioengineering, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, P. R. China.
ACS Appl Mater Interfaces. 2021 Feb 17;13(6):7600-7607. doi: 10.1021/acsami.0c21256. Epub 2021 Feb 4.
Interaction of the conjugated structure in melanin contributed to photothermal conversion. Inspired by this, here, we first demonstrated that lignin nanoparticles (L-NPs) can carry out photothermal conversion, which was attributed to π-π stacking of lignin molecules. Lignin can be readily converted into L-NPs, using the self-assembly method at room temperature. L-NPs showed a stable photothermal effect (22%). The L-NPs were successfully used to power a thermoelectric generator and drive a solar steam generation device under standard 1 sun irradiation (100 mW/cm). Because thermoelectric generators and solar steam generation technologies have huge potential for energy generation and water purification, the as-prepared L-NPs are expected to provide an important contribution to sustainable energy and clean water production.
黑色素中共轭结构的相互作用有助于光热转换。受此启发，在此我们首次证明木质素纳米颗粒（L-NPs）能够进行光热转换，这归因于木质素分子的π-π堆积。在室温下使用自组装方法，木质素能够很容易地转化为L-NPs。L-NPs表现出稳定的光热效应（22%）。在标准1个太阳光照（100 mW/cm）下，L-NPs成功地为热电发电机供电并驱动太阳能蒸汽发生装置。由于热电发电机和太阳能蒸汽发生技术在能源生产和水净化方面具有巨大潜力，预计所制备的L-NPs将为可持续能源和清洁水生产做出重要贡献。
