Algae-mediated biosystems for metallic nanoparticle production: From synthetic mechanisms to aquatic environmental applications
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 r...
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| Published in: | Journal of hazardous materials 2021-10, Vol.420, p.126625, Article 126625 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | eng |
| Subjects: | |
| Online Access: | Get full text |
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| Summary: | 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.
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•The biosynthetic mechanisms of metallic nanomaterials are clarified.•Algae-mediated metallic nanomaterial synthesis is discussed.•Parameters affecting algal biosynthesized metallic nanomaterials are summarized.•Use of algal biosynthesized nanomaterials in aquatic environments is introduced.•Challenges and future directions of algae-mediated biosystems are presented. |
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| ISSN: | 0304-3894 1873-3336 |