2.4 Laboratory and Outdoor Solar Desalination Performance
To evaluate water purification effect of MF@HPB-PPy10-OA in a practical application state, a practical photothermal water evaporation system consisting of MF@HPB-PPy10-OA with dimensions of 30 × 30 × 0.5 cm under natural sunlight is meticulously monitored at the athletic field of Northeast Normal University (NENU: longitude: 125.3 E, latitude: 43.9 N) on July 11, 2022 (Figure 5a-5c). As shown in Figure 5d, the system collects up to 1.8 L of purified water in 12 h, even in a remote area with low sunlight intensity (daily average