Magnetic Janus nanocomposites with iridium(<scp>iii</scp>) complexes for heterogeneous catalysis of logic controlled RAFT polymerization using multiplexed external switching

“…Because of their porous network structures and functionalities, polymer hydrogels were used as metal nanoparticle carrier systems [104]. They could be produced by several polymerization techniques, including polymerizations [105,106], free-radical [107,108], and ionic [109,110] based on convenient and low-cost solution routes. As an example, a core-shell microgel containing a shell of cross-linked poly(N-isopropyl acrylamide) (PNIPA) and solid polystyrene (PS) core was applied to stabilize a nanocatalyst of Pd [111].…”

Section: Nanocatalysts Based On Organic Polymer-supported Metal Catalystsmentioning

confidence: 99%

Application of different Nanocatalysts in industrial effluent treatment: A review

Eskandarinezhad

Khosravi

Amarzadeh

et al. 2021

jcc

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The manufacturing, application, and design of chemical processes and products that minimize or remove waste and the use of dangerous and toxic reagents are referred to as green chemistry. Green chemistry is made up of twelve principles, one of which is catalysis. The role of catalysis is to accelerate the reaction by introducing a substance called a catalyst. Because of their high efficiency, productivity, activity, and selectivity, nanocatalysts have recently received many interests. Nanocatalysts are characterized by their high surface area to volume ratio, as well as their nanoscale forms and sizes. One of the significant applications of nanocatalysts is wastewater and wastewater purification. Green and bio-synthesized nanocatalysts could be used efficiently to remove heavy metals, medicinal, organic, and inorganic pollutants from the wastewater systems. This paper reviews nanocatalysts based on noble and magnetic nanocatalysts, as well as metal catalysts supported by organic polymers, and discusses their industrial effluent treatment mechanisms.

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“…Of course, if we list all the molecules on Earth that have not yet been reported to academia, we may add a few more kinds. Some researchers who were not able to wait for new sensitive molecules that might emerge, and others who were tired of the existing smart system responding to only one stimulus, developed a ‘smarter’ system named multi-stimuli responsive system by simultaneously including segments that respond to two or more different stimuli in one system [ 147 , 148 , 149 ]. For the same reason, the previously introduced several researchers changed the environmental reactive range by slightly touching the structure of the stimuli-sensitive molecule [ 119 ].…”

Section: Applications For Membrane Systemsmentioning

confidence: 99%

ON/OFF Switchable Nanocomposite Membranes for Separations

Kwon

Chun

2020

Polymers

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Although water, air, and other resources are abundant on earth, they have been subjected to strict environmental regulations. This is because of their limitation of availability for human consumption. In the separation industry, the membrane system was introduced to increase the amount of resources available to mankind. Experts used an easy-to-use polymeric material to design several membranes with porous structures for wastewater treatment, gas separation, and chemical removal; consequently, they succeeded in obtaining positive results. However, past polymeric membranes exhibited a chronic drawback such that it was difficult to simultaneously augment the permeate flux and improve its selectivity toward certain substances. Because of the trade-off relationship that existed between permeability and selectivity, the membrane efficiency was not very good; consequently, the cost-effectiveness was significantly hindered because there was no other alternative than to replace the membrane in order to maintain its initial characteristics steadily. This review begins with the introduction of a polymer nanocomposite (PNC) membrane that has been designed to solve the chronic problem of polymeric membranes; subsequently, the stimuli-responsive PNC membrane is elucidated, which has established itself as a popular topic among researchers in the separation industry for several decades. Furthermore, we have listed the different types and examples of stimuli-responsive PNC membranes, which can be switched by external stimuli, while discussing the future direction of the membrane separation industry.

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Magnetic Janus nanocomposites with iridium(iii) complexes for heterogeneous catalysis of logic controlled RAFT polymerization using multiplexed external switching

Abstract: Magnetic Janus nanocomposites enabled robust toggling of RAFT photopolymerization of myriad monomer formulations using a single nanocatalyst with three orthogonal external physical manipulations.

Cited by 27 publications

References 38 publications

Heterogeneous photocatalytic reversible deactivation radical polymerization

Heterogeneous photocatalytic reversible deactivation radical polymerization

Application of different Nanocatalysts in industrial effluent treatment: A review

ON/OFF Switchable Nanocomposite Membranes for Separations

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