Noble metal nanoparticles have interesting optical properties: they strongly absorb visible light due to their surface plasmon resonance (SPR). Gold nanoparticles are well known for their tunable SPR and catalytic properties. However, without a proper support, gold nanoparticles have a high tendency of aggregation, diminishing their catalytic ability. MoS2, a layered transition metal dichalcogenide exhibits tunable electronic structure based on interlayer distance. In this study, Au nanoparticles were deposited on interlayer expanded MoS2 (IE-MoS2) to study the catalytic properties and the synergy between Au and IE-MoS2 and characterized using TEM. The catalytic activity of the hybrid was tested on an organic dye, methyl orange, degradation reaction with UV-Vis spectroscopy. The reaction rate of the hybrid was optimized by tuning the relative concentration of Au on IE-MoS2. A six-fold catalytic enhancement with the Au@IE-MoS2 hybrid compared to IE-MoS2 was achieved. Upon irradiating with visible (532 nm) photons, a further four-fold increase in the reduction rate of methyl orange was observed compared to dark conditions.

Catalytic gold nanoparticles decorated interlayer expanded MoS2 for organic dye degradation

Macromolecular Chemistry: The Second Century

[Author Benefits](https://scimeetings.acs.org/?utm_source=pubs_content_marketing&utm_medium=website&utm_campaign=0320_MCF_NPI_Launch_Spring_Homepage&ref=pubs_content_marketing)

[How to use SciMeetings](https://storage.googleapis.com/dl.morressier.com/acs/SciMeetings-ACSSpring2020-HowToGuide_M3020-Final.pdf)

[Frequently Asked Questions](https://storage.googleapis.com/dl.morressier.com/acs/SciMtng_ACSNMSp2020_FAQ_M3120_Final.pdf)

ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.