Photocatalytic degradation of gaseous toluene over bcc-In2O3 hollow microspheres

Controlled growth of CuO/Cu2O hollow microsphere composites as efficient visible-light-active photocatalysts

“…This implies that P123 template only acts as a structure-directing agent to facilitate the formation of hollow structure. Similar results have also been reported for the synthesis of other metal oxide hollow spheres [22,23]. Moreover, alternation of the amount of P123 cannot result in the change of the composition and morphology (Data not shown), again confirming the only role as template of P123 in this study.…”

Facile and Controllable Modification of 3D In2O3 Microflowers with In2S3 Nanoflakes for Efficient Photocatalytic Degradation of Gaseous ortho-Dichlorobenzene

“…Very recently, numerous visible-light-responsive photocatalysts have been developed, including Fe, Bi, Ag, and In-based photocatalysts. − In particular, indium oxide (In 2 O 3 ), a III–VI group oxide with a bandgap of 2.8 eV, has garnered extensive attention due to its stable photochemical properties and low toxicity . Additionally, In 2 O 3 , as a novel visible-light-driven photocatalyst, has been reported for the removal of VOCs under visible-light irradiation. , Despite these substantial virtues, the photocatalytic application of isolated In 2 O 3 is impeded by the high recombination rate of photogenerated e – /h + pairs and inadequate photosensitivity to the visible portion of the solar spectrum, leading to poor quantum efficiency and low photocatalytic activity under visible-light illumination. To address these limitations, the construction of heterojunctions at the interface of In 2 O 3 and other narrow-band gap semiconductors with well-matched bandgap potentials (e.g., α-Fe 2 O 3 /In 2 O 3 , In 2 O 3 /g-C 3 N 4 , In 2 O 3 /ZnO, In 2 O 3 /graphene, and CuO QDs/In 2 O 3 ) has been investigated as the most effective strategy for circumventing the drawbacks of In 2 O 3 .…”

Au Nanoparticle and CdS Quantum Dot Codecoration of In2O3 Nanosheets for Improved H2 Evolution Resulting from Efficient Light Harvesting and Charge Transfer

“…The results of XPS and EDS tests indicate that the surface of Au NPs is almost covered by the deposited CdS QDs; thus, the pure In 2 O 3 –Au interface is nearly nonexistent. The conduction band (CB) and valence band (VB) of In 2 O 3 are located at −0.62 and +2.20 eV, respectively, while the corresponding positions of CdS are −0.52 and +1.88 eV, respectively. ,, At the In 2 O 3 –CdS interface, the CB of In 2 O 3 is more negative than that of CdS while the VB of In 2 O 3 is more positive than that of CdS, so both the photogenerated electrons and the holes transfer from In 2 O 3 to CdS, presenting the characteristic type-I heterojunction energy transfer (pathway I) process . At the In 2 O 3 –Au–CdS interface, the Fermi energy level of Au lies lower than that of CdS and In 2 O 3 .…”

“…Photocatalytic water splitting hydrogen evolution converts endless solar energy to clean and environmentally friendly hydrogen fuel, thus becoming an impressive strategy in addressing the problems of both energy and environment. − In 2 O 3 , as a well-known moderate band gap semiconductor (2.8 eV), possesses appropriate energy band structure, easily regulated morphology, low toxicity, and good stability and thus has received extensive attention in many areas. − Although In 2 O 3 with different morphologies, such as In 2 O 3 nanorods, , microspheres, mesoporous films, nanowires, , and microflowers (MFs) assembled with nanosheets, − have been studied as photocatalysts, their photocatalytic performances for hydrogen evolution are still very poor because of the limited absorption of solar light and the serious recombination of charge carriers. , Therefore, it is very important to seek effective strategies to solve these two main problems simultaneously for obtaining novel In 2 O 3 -based photocatalysts with high photocatalytic efficiency.…”