Photoelectrochemical conversion of plastic waste into high-value chemicals coupling hydrogen production

Simultaneous upcycling of PET plastic waste and CO2 reduction through Co-electrolysis: a novel approach for integrating CO2 reduction and PET hydrolysate oxidation

“…Hence, researchers have tried to transform EG into other value-added products like formate via electrochemical oxidation under alkaline conditions. 30–34…”

“…Hence, researchers have tried to transform EG into other value-added products like formate via electrochemical oxidation under alkaline conditions. [30][31][32][33][34] In this work, we combined the anodic oxidation process of EG, derived from hydrolyzing PET plastic waste, using CuCo@rGO electrocatalyst, with the cathodic CO 2 reduction reaction (CO 2 RR) using a bismuth carbonate (Bi 2 O 2 CO 3 )-functionalized reduced graphene oxide (BOC@rGO) electrocatalyst. BOC@rGO was prepared from bismuth phosphate@reduced graphene oxide (BiPO 4 @rGO) synthesized using a straightforward one-step hydrothermal method, followed by electrochemical activation.…”

Advances in solar-driven, electro/photoelectrochemical, and microwave-assisted upcycling of waste polyesters

“…Chu and his colleagues reported a photoelectrochemical method that effectively valorizes waste PET plastic into formate salts and green hydrogen. 105 With nickel phosphate on the α-Fe 2 O 3 photoanode, the PET hydrolysate achieved a faradaic efficiency of up to 87% for formate salts without the addition of any oxidants. Moreover, the integrated PET oxidation and hydrogen generation system achieved a photocurrent density of 1.5 mA cm −2 at 1.1 V, which is 270 mV lower than that of traditional water splitting.…”

Microwave-enhanced hydrogen production: a review

“…Plastics are rich sources of hydrogen, which makes them ideal for microwave-assisted catalytic upgrading to produce hydrogen once discarded; hence not only generating prots but also contributing to pollution reduction. [50][51][52][53][54] Typically, iron-, cobalt-, and nickel-based catalysts are the most commonly used for this recycling due to their ability to activate carbonhydrogen bonds. Specically, these catalysts are capable of selectively promoting the cleavage of carbon-hydrogen bonds to generate hydrogen.…”