A novel AgI/AgIO3 heterojunction with enhanced photocatalytic activity for organic dye removal

Superb adsorption capacity of biochar derived from leather shavings for Congo red

“… 2 CR, a well-known carcinogen and can be metabolized to benzidine, causes an allergic reaction. 3 Various types of water-treatment techniques, including adsorption, 4 coagulation, 5 photodegradation, 6 chemical oxidation 7 and electrochemical oxidation, 8 have been reported. Among these techniques, adsorption is an efficient and convenient way to remove dyes.…”

Construction of carbon nitride and MoS2 quantum dot 2D/0D hybrid photocatalyst: Direct Z-scheme mechanism for improved photocatalytic activity

“…It is well known that a Z-scheme photocatalytic system possesses enhanced separation efficiency of photoinduced electrons and holes on different semiconductors as well as strong redox ability [25,26]. Unfortunately, traditional Z-scheme systems consist of two individual semiconductors with noble metals or the electron acceptor/donor pairs as the electron mediator [27][28][29], and this type of structure has some drawbacks such as backward reactions and the reduction of light absorption, consequently inhibiting practical application. The construction of mediator-free direct Z-scheme systems only containing two semiconductor components has thus become promising and important.…”

Synthesis and enhanced visible light photocatalytic CO2 reduction of BiPO4–BiOBrxI1−x p–n heterojunctions with adjustable energy band

“…While BiOBr x I 1Àx was a p-type semiconductor, with Fermi energy level locating closely to the valence band (VB). 40,41 Therefore, according to the formation process of a typical p-n junction, when BiPO 4 contacted closely with the BiOBr x I 1Àx , the Fermi levels of p-type BiOBr x I 1Àx and n-type BiPO 4 tend to move up and go down, respectively. Consequently, the whole energy band of BiOBr x I 1Àx semiconductor will raise up whereas the energy band of BiPO 4 will descend to achieve an equilibrium state.…”