Publications by Daniel Teav Sun

A customized MOF-polymer composite for rapid gold extraction from water matrices

Daniel Teav Sun, Wendy Lee Queen, Li Peng, Olga Syzgantseva, Shuliang Yang, Jun Li

With the fast-growing accumulation of electronic waste and rising demand for rare metals, it is compelling to develop technologies that can promotionally recover targeted metals, like gold, from waste, a process referred to as urban mining. Thus, there is ...

AMER ASSOC ADVANCEMENT SCIENCE2023

An Investigation into the Intrinsic Peroxidase-Like Activity of Fe-MOFs and Fe-MOFs/Polymer Composites

Daniel Teav Sun, Wendy Lee Queen, Vikram Vinayak Karve

The quest for developing materials that provide a perfect trade-off between factors such as enzyme-like response, stability, and low cost has been a long-standing challenge in the field of biosensing. Metal-organic frameworks (MOFs) and their composites ha ...

Wiley2021

Perovskite solar cell provided with an adsorbent material for adsorbing toxic materials

Mohammad Khaja Nazeeruddin, Daniel Teav Sun, Wendy Lee Queen, Aron Joel Huckaba

The present invention concerns a perovskite solar cell provided with a polymer-porous template composite material for absorbing toxic metal ions. Preferably, the porous template material is a metal oxide framework (MOF) material. An example of a preferred ...

2021

Lead Sequestration from Perovskite Solar Cells Using a Metal-Organic Framework Polymer Composite

Mohammad Khaja Nazeeruddin, Mounir Driss Mensi, Tom Theodorus Antonius Lummen, Daniel Teav Sun, Wendy Lee Queen, Aron Joel Huckaba, Yi Zhang, Albertus Adrian Sutanto

Perovskite solar cells (PSCs) have increased in power conversion efficiency in the last 10 years, from approximate to 3% to now over 25%. While the best perovskite photovoltaics have remarkable efficiencies, the Pb-based absorber is likely problematic for ...

2020

A novel integrated Cr(vi) adsorption–photoreduction system using MOF@polymer composite beads

Mounir Driss Mensi, Berend Smit, Daniel Teav Sun, Wendy Lee Queen, Kyriakos Stylianou, Bardiya Valizadeh, Stavroula Kampouri, Ngoc Tú Nguyên

Royal Society of Chemistry2020

A metal-organic framework/polymer derived catalyst containing single-atom nickel species for electrocatalysis

Emad Oveisi, Mehrdad Asgari, Daniel Teav Sun, Wendy Lee Queen, Li Peng, Olga Trukhina, Wen Luo, Ilia Kochetygov, Shuliang Yang, Jie Zhang, Dragos-Constantin Stoian

While metal-organic frameworks (MOF) alone offer a wide range of structural tunability, the formation of composites, through the introduction of other non-native species, like polymers, can further broaden their structure/property spectrum. Here we demonst ...

2020

Enhancing MOF performance through the introduction of polymer guests

Mehrdad Asgari, Daniel Teav Sun, Wendy Lee Queen, Li Peng, Olga Trukhina, Ilia Kochetygov, Vikram Vinayak Karve, Shuliang Yang, Anita Justin, Jordi Espin Marti

In this contribution, recent advances in the construction of MOF-polymer composites and their corresponding applications are briefly reviewed. The appearance of such architectures is becoming prominent in recent literature, due to the fact that the union o ...

2020

Evaluation of materials for iodine and technetium immobilization through sorption and redox-driven processes

Daniel Teav Sun, Wendy Lee Queen

Radioactive iodine-129 (I-129) and technetium-99 (Tc-9(9)) pose a risk to groundwater due to their long half-lives, toxicity, and high environmental mobility. Based on literature reviewed in Moore et al. (2019) and Pearce et aL (2019), natural and engineer ...

ELSEVIER2020

Construction of MOF/Polymer Composites for Metal Ion Capture

Daniel Teav Sun

Metal ion capture is of environmental and economic significance. The industrial revolutions have discharged increasing amounts of heavy and precious metals into complex water sources. The key is that these types of metal ions tend to be at trace amounts in ...

EPFL2020

Efficient reductive amination of HMF with well dispersed Pd nanoparticles immobilized in a porous MOF/polymer composite

Jeremy Luterbacher, Emad Oveisi, Daniel Teav Sun, Wendy Lee Queen, Olga Trukhina, Vikram Vinayak Karve, Shuliang Yang

Aminated derivatives of 5-hydroxymethylfurfural (HMF) and furfural are critical intermediates for the pharmaceutical industry. The state-of-the-art catalysts currently used for these syntheses are mostly homogeneous in nature, motivating the design of recy ...

2020

Preparation of Highly Porous Metal-Organic Framework Beads for Metal Extraction from Liquid Streams

Emad Oveisi, Daniel Teav Sun, Wendy Lee Queen, Li Peng, Olga Syzgantseva, Olga Trukhina, Ilia Kochetygov, Shuliang Yang, Anita Justin, Hassan Abedini, Guanchu Lu

Metal-organic frameworks (MOFs) offer great promise in a variety of gas- and liquid-phase separations. However, the excellent performance on the lab scale hardly translates into pilot- or industrial-scale applications due to the microcrystalline nature of ...

AMER CHEMICAL SOC2020

A new post-synthetic polymerization strategy makes metal-organic frameworks more stable

Safak Bulut, Emad Oveisi, Mehrdad Asgari, Daniel Teav Sun, Wendy Lee Queen, Li Peng, Olga Trukhina, Shuliang Yang, Abbas Jamali

Metal-organic frameworks are of interest in a number of host-guest applications. However, their weak coordination bonding often leads to instability in aqueous environments, particularly at extreme pH, and hence, is a challenging topic in the field. In thi ...

2019

Method for synthesis of a metal organic framework composite

Daniel Teav Sun, Wendy Lee Queen, Li Peng, Shuliang Yang

The present invention relates to a method for synthesis of a metal organic framework composite comprising the folowing steps: a) Synthesize a metal organic framework; b) Make a polymer grow on said metal organic framework, said polymer being chosen among p ...

2019

New composites for extraction of metal or contaminating chemical species

Daniel Teav Sun, Wendy Lee Queen

he present invention relates to a composite for extracting one or more metal or contaminating chemical species from an aerial or aqueous medium by selective binding, said composite comprising at least one porous template functionalized by at least one poly ...

2019

Metal-Organic-Framework-Derived Co3S4 Hollow Nanoboxes for the Selective Reduction of Nitroarenes

Safak Bulut, Emad Oveisi, Daniel Teav Sun, Wendy Lee Queen, Li Peng, Shuliang Yang

MOF-derived Co3S4/CN hollow nanoboxes (CN=nitrogen-doped carbon) was used to catalyze the chemoselective reduction of nitroarenes to anilines under mild reaction conditions with H-2 as the reducing agent. The catalyst provides high conversion efficiencies ...

2018

MOF-Derived Cobalt Phosphide/Carbon Nanocubes for Selective Hydrogenation of Nitroarenes to Anilines

Safak Bulut, Emad Oveisi, Mehrdad Asgari, Daniel Teav Sun, Wendy Lee Queen, Li Peng, Olga Trukhina, Shuliang Yang

Transition-metal phosphides have received tremendous attention during the past few years because they are earth-abundant, cost-effective, and show outstanding catalytic performance in several electrochemically driven conversions including hydrogen evolutio ...

2018

MOF/polymer composite synthesized using a double solvent method offers enhanced water and CO2 adsorption properties

Mehrdad Asgari, Daniel Teav Sun, Wendy Lee Queen, Li Peng, Shuliang Yang

A double solvent method is for the first time used to synthesize a polymer composite that is constructed by a Ni-pyrazolate MOF and polydopamine (PDA). The resulting composite shows significantly enhanced water and CO2 adsorption properties compared to the ...

Royal Society of Chemistry2018

Rapid, Selective Heavy Metal Removal from Water by a Metal-Organic Framework/Polydopamine Composite

Emad Oveisi, Seyedmohamad Moosavi, Daniel Teav Sun, Wendy Lee Queen, Davide Tiana, Li Peng

Drinking water contamination with heavy metals, particularly lead, is a persistent problem worldwide with grave public health consequences. Existing purification methods often cannot address this problem quickly and economically. Here we report a cheap, wa ...

2018

Rapid, Selective Extraction of Trace Amounts of Gold from Complex Water Mixtures with a Metal-Organic Framework (MOF)/Polymer Composite

Emad Oveisi, Natalia Gasilova, Daniel Teav Sun, Wendy Lee Queen, Shuliang Yang

With the ever-increasing production of electronics, there is an ensuing need for gold extraction from sources other than virgin mines. Currently, there are no technologies reported to date that can effectively and selectively concentrate ultratrace amounts ...

AMER CHEMICAL SOC2018

Enhanced permeation arising from dual transport pathways in hybrid polymer-MOF membranes

Daniel Teav Sun, Wendy Lee Queen

The rise of anthropogenic global warming has sparked new interest in developing strategies to mitigate carbon dioxide emissions. Conventional carbon capture processes are not economically viable at scale due to their enormous energy cost. Membrane-based se ...

Royal Society of Chemistry2016