Visible light-driven Bi2Sn2O7/reduced graphene oxide nanocomposite for efficient photocatalytic degradation of organic contaminants

In2O3/Bi2Sn2O7 heterostructured nanoparticles with enhanced photocatalytic activity

“…No any other phases are detected. In the In 2 O 3 /Bi 2 Sn 2 O 7 composite, as the content of In 2 O 3 is lower than 0.5 wt%, the peaks of In 2 O 3 (JCPDS card 06-0416) cannot be detected [29], due to the sensitivity limitation of the XRD equipment [22]. As the content of In 2 O 3 is increased from 0.5 to 0.8 wt%, the intensity of the main peak (222) of In 2 O 3 (indicated with asterisks) is gradually increased, corresponding to a spacing of d=0.292 nm.…”

“…(1), the band gap energies of Bi 2 Sn 2 O 7 and In 2 O 3 calculated from the plots of (αhv) 1/2 versus photon energy (hv) (Fig. S1 [22][23].…”

“…Xu [21]. Liu et al reported the synthesis of Bi 2 Sn 2 O 7 /RGO composites for photocatalytic degradation of RhB and phenol [22]. Although many efforts have been made to improve the catalytic properties of Bi 2 Sn 2 O 7 , its high recombination rate of the photogenerated electron-hole pairs still obstacles its photocatalytic activity.…”

Application of a new sandwich of granular activated and fiber carbon as cathode in the electrochemical advanced oxidation treatment of pharmaceutical effluents

“…Advanced oxidation processes (AOPs) are technologies based on the in situ generation of hydroxyl radicals ( Å OH), a highly oxidant and low selective agent able to react with persistent organic pollutants and oxidize them until their complete mineralization [5]. The use of different AOPs involving Fenton processes, photocatalysis, UV-H 2 O 2 , ozone, ozone-UV, plasma based processes and sonolysis as promising technologies to deal with some environmental problems has been intensely investigated worldwide by numerous researchers [6][7][8][9][10]. Over the past years, Electrochemical Advanced Oxidation Processes (EAOPs) have reached an excellent state of development [11,12].…”

“…Besides, several research studies have demonstrated the high oxidizing power of Å OH physisorbed on BDD, which leads to a great oxidation/mineralization efficiency. For this reason, BDD is a commonly used anode material [8,15,18,19].…”