Multimode 8 bioscope catalyst

TPP was purchased from J&K Chemical Co., Ltd. Graphene nanomaterial was obtained from Sigma-Aldrich (Shanghai, China). The size and shape of graphene were characterized using atomic force microscopy (AFM, Veeco Multimode 8 + bioscope catalyst, USA). The dynamic light scattering (DLS) with a ZetaPALS instrument (Malvern, Zeta sizer Nano Sizer, Nano-2S90, U.K.) was used to detect the size and charge distribution of graphene. Graphene stock dispersion (200 μL) was initially freeze-dried into graphene powders, which were then evaluated using a DXR Raman spectrophotometer (Thermal Fisher, USA) with a 633 nm laser source.

Graphene (1.0 mg/mL) was purchased from Sigma-Aldrich (Shanghai, China), and TPP (purity > 98%) was obtained from Dr. Ehrenstorfer Co., Ltd. The shape and size of Graphene were characterized by atomic force microscopy (AFM, Veeco Multimode 8+bioscope catalyst, USA). The size and charge distribution were analyzed at 0 h, 6 h, 12 h and 24 h, using dynamic light scattering (DLS) and the zeta potentials analyzer (Malvern, Zetasizer Nano Sizer, Nano-2S90, U.K.), respectively. Raman spectra were confirmed by a DXR Raman spectrophotometer (Thermal Fisher, USA) with a 633 nm laser source. Graphene was dispersed in the natural salt water (32‰ salinity), at room temperature (18 ± 1 °C) prior to the above characterization. To reduce the aggregation of Graphene during the preparation, the Graphene suspension was sonicated at 100 W (Shumei, KQ-5200DE, China) for 15 min [11] (link).