In-situ interstitial zinc doping-mediated efficient charge separation for ZnIn2S4 nanosheets visible-light photocatalysts towards optimized overall water splitting

Heteroatom-induced domain electrostatic potential difference in ZnIn2S4nanosheets for efficient charge separation and boosted photocatalytic overall water splitting

“…Two weak peaks of C and O elements detected at 283.4 and 531.6 eV are attributed to the inevitable adsorption of carbon- and oxygen-containing species on the surface of the Al-ZIS nanosheets. 30 As shown in the S 2p spectra (Fig. 3b), the peaks corresponding to S 2p 3/2 and 2p 1/2 of ZIS are located at 161.59 and 162.82 eV, respectively, but the S 2p peaks of Al-ZIS nanosheets have an obvious blue shift (161.34 and 162.58 eV), indicating that the introduction of Al atoms increases the electron density around the S atom.…”

“…The short lifetime ( τ 1 ) reflects the radiation process, whereas the long lifetime ( τ 2 ) reveals the non-radiation energy transfer process, and A 1 and A 2 correspond to the amplitudes. 30,51 TRPL decay spectra and relevant parameters are shown in Fig. 6b and Table S4 (ESI†).…”

“…It is well known that the Kelvin probe force microscopy (KPFM) can be used to image the surface electronic potential of materials at the nanoscale level. 30,52 The surface potentials of ZIS and Al-ZIS nanosheets are measured on a crystalline Si substrate (Fig. 6c and d).…”

Recent advances in metal-free catalysts for the remediation of antibiotics, antibiotic resistant bacteria (ARB), and antibiotic resistant genes (ARGs)

“…1). [23][24][25] In recent decades, the metal-free catalyzed AOPs have caused a research upsurge due to their unique advantages, such as environmental Dahu Ding graduated from the University of Tsukuba (Japan), where he obtained his PhD degree in 2014. During Oct. 2013 to Apr.…”

“…1). 23–25 In recent decades, the metal-free catalyzed AOPs have caused a research upsurge due to their unique advantages, such as environmental friendliness, minimized operational cost, and flexible and adjustable running processes. 26–28 Nevertheless, although metal-free catalysts can avoid secondary pollution to a great extent, they usually suffer from inherent chemical inertness.…”