Synergetic effects of I − ions and BiOI on visible-light-activity enhancement of wide-band-gap (BiO) 2 CO 3
Source abstract
Abstract
Abstract The wide-band-gap semiconductor (BiO)2CO3 was modified by interior doping with I− ions and surface loading with BiOI to prepare a highly efficient visible-light active photocatalyst for the degradation of methyl orange and phenol. The interior I− ions elevate the valence band position of (BiO)2CO3 and induce visible-light photocatalytic activity, while the in-situ-formed BiOI/I-(BiO)2CO3 heterojunction significantly improves the separation of photoinduced charge carriers. By the action of the reactive species h+ and O2−, methyl orange and phenol were degraded over the novel BiOI/I-(BiO)2CO3 composite at rates that were 18- and 4-times, respectively, those of unmodified (BiO)2CO3. Thus, the findings presented here may be widely applied in the development of wide-band-gap semiconductor photocatalytic systems for the highly efficient removal of contaminants from wastewater.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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