Li Sheng-Nan, Wang Rupeng, Ho Shih-Hsin
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China.
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China.
J Hazard Mater. 2021 Oct 15;420:126625. doi: 10.1016/j.jhazmat.2021.126625. Epub 2021 Jul 20.
Driven by the growing impetus of green chemistry and environmental protection, the use of bio-based systems to produce green metallic nanomaterials used for environmental remediation has thus developed urgently. It is proposed that using algae as a living cell factory or algal extract as a natural reducing agent is a green and clean way to efficiently synthesize various metallic nanomaterials. However, studies on algal-based biological synthesis of metallic nanomaterials and their applications towards removal of toxic pollutants from wastewater are still limited, which largely discourage the sustainability. Herein, this review aims to introduce the recent advances on algae-mediated nanomaterial-producing biosystems. The corresponding synthetic mechanisms, operation parameters, and case studies on various algae-synthesized metallic nanoparticles are comprehensively discussed and summarized. More importantly, the applicability of algae-synthesized metallic nanoparticles on water treatment is introduced in-depth. To improve economic viability, the challenges and future perspectives are also considered. Taken together, this review systematically presents the achievements and current progress of algae-mediated metallic nanoparticle biosynthesis towards the aquatic pollutants treatment, which can provide new insights on promoting the algae-based nanomaterial production yield and environmental application potential.
在绿色化学和环境保护日益增长的推动下，利用生物基系统生产用于环境修复的绿色金属纳米材料的需求因此迫切发展起来。有人提出，利用藻类作为活细胞工厂或藻类提取物作为天然还原剂是高效合成各种金属纳米材料的绿色清洁方法。然而，基于藻类的金属纳米材料生物合成及其在去除废水中有毒污染物方面的应用研究仍然有限，这在很大程度上阻碍了可持续性。在此，本综述旨在介绍藻类介导的纳米材料生产生物系统的最新进展。全面讨论和总结了各种藻类合成金属纳米颗粒的相应合成机制、操作参数和案例研究。更重要的是，深入介绍了藻类合成金属纳米颗粒在水处理中的适用性。为了提高经济可行性，还考虑了挑战和未来前景。综上所述，本综述系统地介绍了藻类介导的金属纳米颗粒生物合成在处理水生污染物方面的成果和当前进展，可为提高基于藻类的纳米材料产量和环境应用潜力提供新的见解。
