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Evaluate alternative semiconductor and non-semiconductor photocatalytic materials to titanium dioxide and assess their viability across key solar-driven chemical processes.

January 1, 2009Energy & Environmental Science

Development of alternative photocatalysts to TiO2: Challenges and opportunities

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Evaluate alternative semiconductor and non-semiconductor photocatalytic materials to titanium dioxide and assess their viability across key solar-driven chemical processes.
Conducted an historical literature review of photocatalyst developments over recent decades.
Assessed emerging photocatalysts—including d0 and d10 cation compounds, zeolites, and revisited materials like zinc oxide and cadmium sulfide—across water splitting, disinfection, and organic synthesis.
Semiconductors utilizing d0 cations (such as tantalum and niobium) and d10 oxides or nitrides (such as bismuth, indium, and gallium) overcome the wide-band-gap solar absorption limitations of titanium dioxide.
Non-semiconductor solids such as cation-interchanged zeolites and reconsidered conventional semiconductors (zinc oxide and cadmium sulfide) demonstrate tailored efficiency for specific reaction niches.

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Implication

Review demonstrates viable titanium dioxide alternatives across solar chemical reactions, suggesting material-specific advantages for hydrogen production and environmental decontamination.

Cite This Study

Hernández‐Alonso et al. (2009) studied this question.

synapsesocial.com/papers/69dd196aaa9a964e8d13349f https://doi.org/10.1039/b907933e

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Implication

Review demonstrates viable titanium dioxide alternatives across solar chemical reactions, suggesting material-specific advantages for hydrogen production and environmental decontamination.

Development of alternative photocatalysts to TiO2: Challenges and opportunities

Key Points

Discussion

Implication

Cite This Study

Development of alternative photocatalysts to TiO2: Challenges and opportunities

Key Points

Discussion

Implication

Cite This Study

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