Industrial technology for mass production of SnO2 nanoparticles and PbO2 microcube/microcross structures from electronic waste

Circular economy in Latin America: A systematic literature review

“…The issue of recycling is one of the most related to CE because as issues related to the “circular economy” and “sustainable development” have been promoted worldwide, recycling, reuse, recovery are becoming popular as it ensures (Pan & Li, 2016), thus in Latin America, a number growing number of countries are preparing recycling policies that could minimize the impact of packaging and explore schemes of shared producer responsibility (Peinado, 2017), as well as has become aware of the economic value of waste as is the case of the recovery of metals from electronic waste (Işıldar, Rene, van Hullebusch, & Lens, 2018), specifically that of electronic boards by means of dissolution treatments (Tatariants et al, 2018), and as well as for the successful case of metal extraction in cell phone recycling that contributes to the campaign “They're Calling on You” in favor of gorilla conservation (Litchfield, Lowry, & Dorrian, 2018).…”

Nanomaterial Synthesis from End‐of‐Cycle Products: A Sustainable Way of Waste Valorisation

“…The synthesis requires copper oxide-titanium oxide as catalyst and PVP as stabilizer [56]. In another example, copper-tin nanoparticles have been synthesized from old printed circuit boards through selective thermal transformation [57] Graphene sheet PTFE Catalyst-free CVD [52] Graphene film PMMA Copper thin layer CVD [53] particle synthesis are that of copper, copper oxide, stannic oxide, silver and zinc oxide/copper oxide nanocomposites from waste printed circuit board [58][59][60][61][62], selenium nanoparticles from photocopier selenium drums [63], and graphene-stabilized copper oxide nanoparticles from waste electric cable [64].…”

From E-Waste to High-Value Materials: Sustainable Synthesis of Metal, Metal Oxide, and MOF Nanoparticles from Waste Printed Circuit Boards

“…In 2019, the global production of e-waste reached 53.6 million metric tons, and projections indicate a surge to 74.7 million metric tons by the year 2030 [ 1 ]. With electronic waste production currently estimated at around 52.2 million tons annually and a growth rate of 5%, the importance of recycling becomes increasingly evident [ 2 ].…”

“…WPCBs are of particular interest due to their high content of valuable metals like copper (Cu) and tin (Sn); precious metals such as silver (Ag), gold (Au), and palladium (Pd) [ 3 ]; and rare earth elements such as praseodymium (Pr), neodymium (Nd), lanthanum (La), and cerium (Ce), if compared with mineral ores [ 4 ]. The presence of these metals make electronic waste a potential resource for urban metal mining, reducing the need for virgin ore extraction [ 2 ]. However, it is crucial to acknowledge that e-waste also harbors hazardous elements like cadmium (Cd), mercury (Hg), nickel (Ni), and lead (Pb).…”

“…They involve separating the layers and components of WPCBs for reprocessing into various applications. One inspiring outcome of these recycling efforts is the synthesis of high-added-value products, including nano and microstructures, from the recovered metals [ 2 ].…”