Pto dihydrate

Unless otherwise stated, SiO₂ nanoparticles (200 to 300 nm, Shanghai Aladdin Bio-Chem Technology Co., Ltd., China), PTO dihydrate (99.99%, Sigma-Aldrich, USA), H₂O₂ standard solution (1,000 μg/mL, Beijing Northern Weiye Metrology Research Institute, China), anhydrous dimethyl sulfoxide (99.99%, Sigma-Aldrich, USA), (3,3′,5,5′-TMB, Sigma-Aldrich, USA), NaCl (AR, Sinopharm Chemical Reagent Co., Ltd., China), DI water (Merck Millipore, USA), deuterated water (D₂O, Sigma-Aldrich, USA), and argon (99.999%, Wuhan Iron and Steel Group Gas Co., Ltd., China) were used in experiments. Fourier transform infrared spectroscopy (Nicolet iS50, Thermo, USA) and in situ sealed reaction chamber (Harrick Scientific Products, Inc.) were used in experiments.

Unless otherwise stated, HCl (AR, Sinopharm Chemical Reagent Co., Ltd, China), NaOH (AR, Sinopharm Chemical Reagent Co., Ltd, China) NaCl (AR, Sinopharm Chemical Reagent Co., Ltd, China), O₂ (99.999%, Wuhan Iron and Steel Group Gas Co., Ltd., China); heavy O₂ (99.99%, Wuhan Niuruide Gas Co., Ltd., China), PTO dihydrate (99.99%, Sigma-Aldrich, USA); 4-CPB (99.99%, Sigma-Aldrich, USA); anhydrous dimethyl sulfoxide (99.99%, Sigma-Aldrich, USA); 10-acetyl-3,7-dihydroxyphenoxazine (KeyGEN BioTECH Co., Ltd, China); H₂O standard solution (1,000 μg/mL, Beijing Northern Weiye Metrology Research Institute, China); PDMS prepolymer RTV 615 (Momentive, USA); graphite powder; CaO; ZrO; SiO₂; Al₂O₃; MnO₂, TiO₂; CuO; ZnO (Shanghai Aladdin Bio-Chem Technology Co., Ltd, China); and standard soil (GBW07446, China) were used in experiments. DI water (Merck Millipore, USA) was used in all experiments. SiO₂ substrates (optical grade, Sigma-Aldrich, USA), conductive glass substrates (NSG Pilkington FTO glass), and glass substrates (Jiangsu Fanchuan Co., Ltd, China) were ultrasonically cleaned with acetone, ethanol, and DI water for 30 min before use.