Multi-shelled hollow cube CaTiO3 decorated with Bi12O17Cl2 towards enhancing photocatalytic performance under the visible light

CdS/Bi12O17Cl2 Heterostructure Promotes Visible-Light-Driven Photocatalytic CH4 Generation and Phenol Conversion

“…In the 50% CdS/Bi 12 O 17 Cl 2 sample, the binding energies of S 2p (160.1 and 161.3 eV) and Cd 3d (403.5 and 410.2 eV) were shifted to a lower level. The shift of binding energy is resultant from the strong interaction between Bi 12 O 17 Cl 2and CdS[42,43], which is in accordance with the HRTEM results as discussed below.…”

“…The Raman spectra were measured to research the chemical bonding information of Bi 12 O 17 Cl 2 , CdS, and 50% CdS/Bi 12 O 17 Cl 2 (Figure 5). For the Bi 12 O 17 Cl 2 phase, the bands situated at about 96 and 165 cm −1 could be attributed to the A 1g and E g modes of external Bi-Cl stretching patterns [43]. For the CdS phase, two peaks at 298 and 595 cm −1 were attributed to the first-order and secondorder longitudinal optical modes, respectively [44].…”

Vanadium doped CaTiO3 cuboids: role of vanadium in improving the photocatalytic activity

“…19,20,21 The band gap energy of CaTiO3 is about 3.2 eV, as a result, its photocatalytic activity is restricted to the UV portion of the solar spectrum only and hence various strategies like doping, construction of heterostructure and coupling with π-conjugated structure have been utilized in order to reduce the band gap. 18,[22][23][24] Among various strategies, doping with a foreign atom in to the lattice of wide band gap photocatalyst has been found to be the promising method as there are three possible sites for doping (Ca, Ti and O). However, dopants are known to introduce bulk defects which can also act as recombination centres of photoinduced charges thus diminishing the photocatalytic efficiency of the material.…”

Efficient Visible-Light-Responsive Ag3PO4/g-C3N4/Hydroxyapatite Photocatalyst (from Oyster Shells) for the Degradation of Methylene Blue: Preparation, Properties and Mechanism

“…Photoluminescence (PL), photocurrent response and electrochemical impedance spectra of CNH, Ag 3 PO 4 and Ag/CNH(III) are shown in Figure 6. As shown in Figure 6a, Ag/CNH(III) has the lowest photoelectric hole recombination efficiency, which is more favorable for the improvement of photocatalytic performance [43,44]. Figure 6b shows the photocurrent intensity of each material when the light source was turned on and off.…”