Abstract
Recent advances in nanoscience and nanotechnology have also led to the development of novel nanomaterials, which ultimately increase potential health and environmental hazards. Interest in developing environmentally benign procedures for the synthesis of metallic nanoparticles has been increased. The purpose is to minimize the negative impacts of synthetic procedures, their accompanying chemicals and derivative compounds. The exploitation of different biomaterials for the synthesis of nanoparticles is considered a valuable approach in green nanotechnology. Biological resources such as bacteria, algae fungi and plants have been used for the production of low-cost, energy-efficient, and nontoxic environmental friendly metallic nanoparticles. This review provides an overview of various reports of green synthesised zero valent metallic iron (ZVMI) and iron oxide (Fe2O3/Fe3O4) nanoparticles (NPs) and highlights their substantial applications in environmental pollution control. This review also summarizes the ecotoxicological impacts of green synthesised iron nanoparticles opposed to non-green synthesised iron nanoparticles.
Highlights
Nanotechnology is the ability to measure, see, manipulate and manufacture things on an atomic or molecular scale, usually between one and 100 nanometres
The results indicate that the complete removal of methylene blue (MB) and methyl orange (MO) dyes from water was achieved at a concentration of 10–200 mg/L
Green tea extract was used as a reducing agent for formation of Fe/Pd metallic nanoparticles in Polyvinylidene fluoride (PVDF) membranes modified by polyacrylic acid (PAA)
Summary
Nanotechnology is the ability to measure, see, manipulate and manufacture things on an atomic or molecular scale, usually between one and 100 nanometres. These tiny products have a large surface area to volume ratio, which is their most important feature responsible for the widespread use of nanomaterials in mechanics, optics, electronics, biotechnology, microbiology, environmental remediation, medicine, numerous engineering fields and material science [1]. Physical and chemical methods are being used extensively for production of metal and metal oxide nanoparticles. This production requires the use of very reactive and toxic reducing agents. Tthheesientemreestat lilnicnannaonsocpalaertziecrleos-v, ailreonnt inroanno(pnaZrVtiIc)leins e(nFveNiroPnsm) henavtael rpermomediisaintigonaidsvianncrteaagseisngthdautectaonthcoemrebaacttiveintvyiorof nnmaneonstcaallepiorlolunthioanv.inTghae lianrtgeeressut rifnacneanaroesacatloevzoelruom-vealreantitoir[o6n,7](.nTZhVeI)pirnodeunvctiiroonnmofeinrtoanl nreamnoemdiaatteiornialiss,isnuccrheaassinmgedtaulelictoirtohne arenadctoivxiitdyeooffniraonnosvciaaleaimroonrehacvoinnvgeanileanrgt egrseuernfaecreroaruetae,toisvaogluremaet srtaetpiof[o6r,w7]a. rTdheinptrhoedudcetvioelnopofmireonnt onfannoamnoamtearitaelrsi,aslsu.chThasismreevtailelwic ihroignhalingdhtosxitdhee osfigirnoifincvainacaemoforbeiocgoennviecnaiepnptrgoraecehneesr aronudteth, ies raoglereoaft bstieopcofmorpwaatirbdleingrtheeendmevaetleorpiamlseinnttoefchnnanoloomgiactaelraianlds. eTchoinsormeviiceawllyhfiegahsliibglhetps rtohceessisgannifdicpanraccetiocfebs.ioItgeanlsioc saupmprmoaacrhizeessatnhde qthueesrtofloeroafnbieoncvoimropnamtiebnletaglrlyeesnusmtaaitnearbiallessiynnttehcehsnisolporgoicceaslsaonfdireocnonnoamnoicmaalltyerfieaalssifboler tphreoicreaspspalnicdatipornacttoictehse. fiIteladlsoof seunmvirmoanrmizeenstathl esuqsutaeisntafboilritayn. environmentally sustainable synthesis process of iron nanomaterials for their application to the field of environmental sustainability
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