Fabrication of N-TiO₂/InBO₃ Heterostructures with Enhanced Visible Photocatalytic Performance

Abstract

A new type of heterostructured photocatalysts (N-TiO2/InBO3) were synthesized by coupling nitrogen-modified TiO2 (N-TiO2) with indium borate (InBO3) via a one-step sol–gel method. It was revealed that N-TiO2/InBO3 exhibited an improved photocatalytic performance compared with TiO2, N-TiO2, and InBO3 under both UV and visible light irradiation because of the formation of a heterostructure at the interface as well as the introduction of surface NO x species and InBO3. These results may provide a paradigm to fabricate and design the optoelectronic functional materials with high efficiency and performance.

Construction and Nanoscale Detection of Interfacial Charge Transfer of Elegant Z-Scheme WO3/Au/In2S3 Nanowire Arrays

“…The experimental curves are fitted most reasonably by a biexponential model (see SI for details) . The fast component (τ 1 ) is usually attributed to the nonradiative relaxation process relevant to defects of oxide, and the slow component (τ 2 ) usually arises from the radiative pathway from the recombination of photoinduced electrons and holes . The transient PL decay traces of the pristine WO 3 and WO 3 /Au show that PL lifetime (τ 2 ) of ∼0.26 ns and ∼0.24 ns, respectively.…”

Hydrolytic Modification of SiO2 Microspheres with Na2SiO3 and the Performance of Supported Nano-TiO2 Composite Photocatalyst

“…However, TiO 2 also suffers from an easy combination of photogenerated electrons and holes [ 9 ], low utilization of sunlight [ 10 ], reduced photocatalytic effect due to particle agglomeration [ 11 ], and difficult recycling in wastewater [ 12 ]. Elemental doping [ 13 , 14 ], noble metal deposition [ 15 ], heterostructure construction [ 11 , 14 ], and morphology control [ 16 ] have been adopted to improve TiO 2 photocatalytic performance. It was found that loading TiO 2 onto carriers enhances photocatalytic performance and enables the recycling and reuse of TiO 2 , resulting in lower application costs [ 17 ].…”

Synthesis and photocatalytic activities of a CuO/TiO2 composite catalyst using aquatic plants with accumulated copper as a template

“…25,26 Among the methods used for making TiO 2 semiconductors active under visible light are doping, combination of TiO 2 with other lower band gap metal oxides and others. [27][28][29] In addition to doping or combination of TiO 2 with other materials, the application of porous metal oxides has also many advantages in the remediation of environmental pollution. 30,31 Reports have also shown that synthesized mesoporous TiO 2 exhibits a high specic surface area and enhances the catalytic activity.…”