Fig. 2: PLA photoreforming performance.
From: Isolated Ni atoms enable alkali-free photoreforming of waste polylactic acid plastic

a PLA photoreforming performance of CdS and Ni/CdS with differenc Ni content. Error bars indicate the standard deviations and obtained by 3 times test. The photocatalytic reaction was conducted under illumination from a Xe lamp (Perfect Light, Beijing) equipped with an AM 1.5 G filter, with a light intensity of 150 mW·cm−2. The reaction solution consisted of 30 mg of catalyst dispersed in 30 mL of a 10% pre-hydrolyzed PLA solution. b 1H NMR spectra of the reaction solution before and after photoreforming in a specific test. c Quantum efficiency of Ni/CdS under the irradiation of different wavelength obtained by one-time test. d Stability of Ni/CdS under 6th cycling test.