Designing the surfaces of semiconductor quantum dots for colloidal photocatalysis

EA Weiss - ACS Energy Letters, 2017 - ACS Publications
This Perspective reviews strategies for tuning the surface chemistry of colloidal
semiconductor nanocrystals (quantum dots, QDs) to function as photoredox catalysts or …

Photocatalytically Active Superstructures of Quantum Dots and Iron Porphyrins for Reduction of CO2 to CO in Water

S Lian, MS Kodaimati, EA Weiss - ACS nano, 2018 - ACS Publications
This paper describes the use of electrostatic assemblies of negatively charged colloidal
CuInS2/ZnS quantum dot (QD) sensitizers and positively charged, trimethylamino …

Impact of hole scavengers on photocatalytic reduction of nitrobenzene using cadmium sulfide quantum dots

AW Mureithi, Y Sun, T Mani, AR Howell… - Cell Reports Physical …, 2022 - cell.com
One key factor that affects the reaction yield and selectivity of nanoparticle-catalyzed
photochemical reactions is the type of hole scavengers. In this work, we examine the effect …

Selective photocatalytic oxidation of benzyl alcohol to benzaldehyde or C–C coupled products by visible-light-absorbing quantum dots

KP McClelland, EA Weiss - ACS Applied Energy Materials, 2018 - ACS Publications
This Forum Article describes the photocatalytic oxidation of benzyl alcohol by visible-light-
absorbing colloidal CdS quantum dots (QDs), with 99% selectivity for benzaldehyde or 91 …

Challenges in colloidal photocatalysis and some strategies for addressing them

MS Kodaimati, KP McClelland, C He, S Lian… - Inorganic …, 2018 - ACS Publications
Colloidal semiconductor nanocrystals, or “quantum dots”(QDs), have several optical and
chemical properties that give them the potential to enable nonincremental increases in the …

Photoluminescence investigations of sulfur quantum dots synthesized by a bubbling-assisted strategy

S Liu, H Wang, A Feng, J Chang, C Zhang, Y Shi… - Nanoscale …, 2021 - pubs.rsc.org
Sulfur quantum dots (S-dots) emerge as promising luminescent materials owing to their
remarkable optical properties. However, the mechanisms of their formation and …

Competitive Anionic Exchange of Thiolate Ligands onto Aqueous Phosphonate-Capped Quantum Dots

JH Dunlap, NP Jayaweera, PJ Pellechia… - The Journal of …, 2022 - ACS Publications
This study examines the relative binding strength of a series of thiolate ligands to the
surfaces of zincblende CdSe/ZnS core/shell quantum dots (QDs) passivated by …

Distance-dependence of interparticle energy transfer in the near-infrared within electrostatic assemblies of PbS quantum dots

MS Kodaimati, C Wang, C Chapman, GC Schatz… - ACS …, 2017 - ACS Publications
This paper describes control of the rate constant for near-infrared excitonic energy transfer
(EnT) within soluble aqueous assemblies of PbS quantum dots, cross-linked by Zn2+, by …

Organic-to-aqueous phase transfer of cadmium chalcogenide quantum dots using a sulfur-free ligand for enhanced photoluminescence and oxidative stability

R Calzada, CM Thompson… - Chemistry of …, 2016 - ACS Publications
This paper describes a procedure for transferring colloidal CdS and CdSe quantum dots
(QDs) from organic solvents to water by exchanging their native hydrophobic ligands for …

Rational Design of Capping Ligands of Quantum Dots for Biosensing

X Xu, A Liu, D Pang - Chemical Research in Chinese Universities, 2024 - Springer
Quantum dots have been widely applied in biosensing due to their outstanding optical
properties. The emissions of quantum dots are mainly determined by their composition and …