Enhanced dark adsorption and visible-light-driven photocatalytic properties of narrower-band-gap Cu2S decorated Cu2O nanocomposites for efficient removal of organic pollutants

Methanol and Triethanolamine Effect as Sacrifice Agents in the Photocatalytic Production of Hydrogen over Zinc Titanates

“…Photocatalytic reactions are easier carried out when sacrificial agents are adsorbed on the semiconductor material. FT-IR spectra of sacrificial agents adsorbed on ZTO surfaces were obtained according to studies reported by Yue et al [53]. Figure 13 shows the FT-IR spectra in the ranges of 3000-2800 cm -1 (Figure 13a), 1750-1350 cm -1 (Figure 13b), 1300-1000 cm -1 (Figure 13c) and 950-700 cm -1 (Figure 13d) before and after the adsorption of methanol and triethanolamine on the surfaces of each ZTO.…”

Preparation of flower‐like Cu2O/ZnO for removal of dyes from aqueous medium

“…Cu2O/Cu2S nanocomposites synthesized by the facile coprecipitation method had the high surface area (45.88 m 2 /g) showing the high photodegradation of Congo red and methyl orange. [9] Cu2O hollow nanospheres prepared by precipitation method could both adsorb and photodegrade dyes, the degradation efficiency and removal efficiency in 10 min of methylene blue was 90 and 92 %, respectively. [10] Cu2O on reduced graphene oxide prepared by onepot and green chemical precipitation exhibited up to 1.6 times enhancement of photocatalytic activity compared with pure Cu2O.…”

Enhanced pyrocatalysis of the pyroelectric BiFeO3/g-C3N4 heterostructure for dye decomposition driven by cold-hot temperature alternation

“…The method of fabricating heterostructure with the narrow-gap semiconductors to enhance catalytic performance has been widely applied in photocatalysis [11][12][13]. Benefitting from the generation of internal electric field on the interface, the heterostructure can strengthen the separation of the positive and negative carriers and further accelerate their migrations [14][15][16].…”