Pixel International Conferences

Digital Library Directory > New Perspectives in Science Education 14th Edition 2025
New Perspectives in Science Education 14th Edition 2025

Photocatalytic Synthesis of Benzaldehydes in Schools

Jonathan Bauschulte; Malte Petersen; Timm Wilke

Abstract

Organic chemistry forms a cornerstone of general chemistry, providing foundational knowledge for understanding chemical processes. Within this domain, aldehydes are an important precursor in numerous organic syntheses and exhibit broad application potential. Despite their significance, the synthetic pathways to aldehydes are often not deeply discussed in educational contexts, where traditional experiments such as the oxidation of primary alcohols with copper oxide, face practical limitations in school settings due to the toxicity of substances used, time-intensive and complex setups, and the low yields of products [1,2].

To address these challenges, this work introduces a simple and low-cost method for the photocatalytic synthesis of benzaldehydes from benzoic acid (Figure 1) [3]. Central to this approach is the use of polymeric carbon nitrides, a versatile class of organic nanomaterials, as photocatalysts to drive the reaction. As recently demonstrated by Petersen et al., these materials are not only low-cost to synthesize but also highly effective in hydrogen production [4]. Building on this foundation, the presented experiment expands the application of polymeric carbon nitrides to organic synthesis, showcasing their potential as innovative tools in modern chemistry.

 

Figure 1: Decarboxylative oxygenation of 4-Methoxyphenylacetic acid

This approach bridges the gap between traditional chemistry education and cutting-edge scientific advancements by integrating sustainable materials into the classroom. By doing so, it highlights a pathway to modernize experimental chemistry and inspire further exploration of nanomaterials in education and research.

 

Keywords

organic chemistry, aldehydes, organic nanomaterials, photocatalysis

 

REFERENCES

[1] Ouellette, R. J., Rawn, J. D. (2014). Aldehydes and Ketones. In: Organic Chemistry. Elsevier, 595–628.

[2] Marko, I. E., Giles, P. R., Tsukazaki, M., Brown, S. M., Urch, C. J. (1996). Copper-Catalyzed Oxidation of Alcohols to Aldehydes and Ketones: An Efficient, Aerobic Alternative. Science (New York, N.Y.) 274/5295, 2044–2046.

[3] Xu, D., Yu, C., Peng, X., Yan, H., Zhang, Y. (2024). Recent advances in carbon quantum dot photocatalysis. Res Chem Intermed 50/10, 4597–4617.

[4] Petersen, M. et al.  Synthesis of Polymeric Carbon Nitrides in a low-cost Moka Furnace for Photocatalytic Hydrogen Generation with Visible Light. J. Chem. Educ., submitted

 

 


Publication date: 2025/03/21
ISBN: 979-12-80225-83-2
Pixel - Via Luigi Lanzi 12 - 50134 Firenze (FI) - VAT IT 05118710481
    Copyright © 2025 - All rights reserved

Privacy Policy

Webmaster: Pinzani.it