Manirul Islam

• Ph.D
• University of Kalyani

Although carbon dioxide is a plentiful, affordable, and benign carbon source, its steady rise in the atmosphere as a major greenhouse gas has resulted in significant environmental issues. Herein, we have synthesized a urea‐linked covalent organic framework (TFPTA‐BDU COF) by condensation polymerization. Then Zn (II) ions were impregnated on the N‐r...

In this present work, a newly designed metal‐oxide nanoparticle incorporated Covalent organic framework (COF), CuxOy@TFP‐ODA has been successfully synthesized and used for the effective synthesis of Oxazolidinones and a‐hydroxy ketones under mild conditions utilizing CO2. Initially, imine‐linked 2D COF, TFP‐ODA was synthesized by simple solvotherma...

An efficient heterogeneous copper-loaded catalytic system for photocatalytic hydrogen evolution and reduction of CO2 to methanol has been reported. For the present photocatalytic reaction, an elegant strategy has been developed to heterogenize the homogeneously active copper-based catalysts via immobilization on the porphyrin-based porous organic p...

Chemical fixation of CO2 for the synthesis of valuable chemicals is very demanding in the context of green and sustainable chemistry. Herein, we report highly efficient silver‐loaded porous organic polymer catalysts for the exclusive N‐formylation and N‐methylation of amines under ambient reaction conditions using CO2 as a green C1 source. By adjus...

The photocatalytic production of fuels and chemicals utilizing highly effective catalysts has garnered a lot of interest as a sustainable and clean strategy. Herein, we have reported the effective fabrication...

A simple porous polymer framework (PPF) as a promising heterogeneous ligand for Pd-catalyzed CO2 fixation reaction into diverse cyclic carbonates is reported. Several terminal epoxides and more challenging disubstituted epoxides...

The rising amount of carbon dioxide in our atmosphere is a concern for our environment. This large amount of CO2 can be utilized as a C1 source for chemical fixation....

Porous organic polymers (POPs) have attracted substantial attentions over the years due to their exceptionally high specific surface areas, high chemical stability of the organic network and ease of surface functionalization with the desired organic groups. In this work, a triazine based POP (TrzPOP) was synthesized through Schiff base polycondensa...

Porous polymeric frameworks have received great interest over the past few years because of their nonstop growth as crystalline porous polymeric materials connected through covalent bonds and versatile utilities in diverse fields. The production of high-value organic compounds via sustainable and environment-friendly methods is an uphill struggle f...

Sustainable metal-free catalytic conversion of carbon dioxide (CO2) via cycloaddition of epoxides with CO2 has shown great promise but suffers from a lack of recyclability because of the homogeneous nature, limiting their use. Heterogeneous organocatalysts have gained immense attention in the last decade because of superior application potential an...

Direct photochemical carboxylation of C(sp3)–H bonds with CO2 is an uphill task and it has attracted increasing attention. In the present study, we report an elegant strategy for visible-light-triggered C(sp3)-H carboxylation of amines with CO2 into α-amino acids using a stable crystalline polyimide-based covalent organic framework (PI-COF) as an e...

A 2D polyimide-linked covalent organic framework (COF) is developed as a stable and efficient porous photocatalyst, associated with very low band gap energy of 2.2 eV. Different characterization studies have...

Designing efficient catalysts for the chemical fixation of CO2 on reactive organics under mild conditions is very challenging from the perspectives of green and sustainable chemistry. Here we report a...

Currently, capturing carbon dioxide and converting it to a range of important fine chemicals has acquired more considerations as CO2 is an abundant C1 source. This present work has introduced...

We describe the facile hydrothermal synthesis of a sponge-like 2D layered triazine based covalent organic framework (COF) structure. The substance comprises of 18.49 nm nanoparticles and well-organized mesopores across its 2D layers. This highly ordered π-conjugated metal-free COF structure possesses 1.86 eV band gap energy and performs as a potent...

As the ultimate carbon emission product of the combustion process, carbon dioxide (CO2) is a serious environmental threat in increasing the global climate temperature through the greenhouse effect. Porous heterogeneous catalysts have attracted much attention for carbon capture and in the recent past; they have witnessed significant advancements in...

Global warming is a great threat to the very survival of our planet. Among the different greenhouse gases, carbon dioxide is pre-eminently responsible for the occurrence of global warming. Therefore, to overcome this problem, covalent organic frameworks (COFs) have been developed as a new class of multifunctional crystalline organic catalyst constr...

Photocatalytic metal‐free carboxylation of olefins offers an environment‐friendly approach for resolving the increasing energy issue as well as mitigating the dilemma caused by the greenhouse effect. Carboxylation of styrene and its derivatives by photocatalytic CO2 reduction reaction shows great potential for sustainable utilization of greenhouse...

Mitigation of carbon monoxide and ammonia to valuable primary aromatic amides is an imperative approach to control the environmentally harmful emissions thereby infusing towards sustainability. Designing of nanostructured catalyst for direct access to the synthetically valuable primary aromatic and heteroaromatic amides via carbonylative amination...

New two-dimensional porous covalent organic frameworks (PHTA) with imine linkers have been synthesized and effectively utilized as metal free catalytic system for the synthesis of urea derivatives from a wide range of isocyanates under inert atmosphere. The material has been thoroughly characterized using powder XRD, HRTEM, FESEM, BET, FT-IR, XPS a...

Designing of controlled nanostructured catalysts is always a demanding approach for bridging the gap between homogeneous and heterogeneous catalysis. Here, in this report 0.8-1 nm size Rh2O3 nano particles confined in silica meso-channels have been prepared through a facile template assisted synthesis approach. The supported Rh2O3 particles perform...

We have designed a nano-sheet-like porous organic polymer (POP) constructed via a schematic hydrothermal process and characterized it using PXRD, N2 adsorption–desorption studies, UV-vis, XPS and microscopic analyses (TEM and FESEM). The synthesized POP can perform as a dynamic photo-catalyst for the production of formic acid and formaldehyde. This...

A simple covalent organic framework (COF) bearing β-ketoenamine units as a potential heterogeneous ligand for ZnII-catalyzed fixation and transformation of CO2 into value-added chemicals is reported. Catalytic investigations convincingly demonstrated that the ZnII-functionalized covalent organic framework (Zn@TpTta) exhibits perfect catalytic activ...

Vaccination is closely associated with the use of microbes in various different ways. The disease-causing microbes are either attenuated or heat/chemically treated to be used for vaccines. The generation of DNA vaccines also relies on the genetic material of the microorganisms for the vaccination. Moreover, microorganisms are also used as vectors f...

A new triazine-based organized 2D covalent organic framework (COF), namely, TRITER-2, has been built through combinatorial copolymerization between 4,4'-biphenyldicarbaldehyde and a triamine 1,3,5-tris-(4-aminophenyl) triazine (TAPT). This highly crystalline organic polymeric...

An efficient wet chemical one-pot synthesis strategy for the preparation of NiO nanoparticles has been reported. The nano-structured NiO has surface bound hexamine and it has emerged as a proficient...

We have demonstrated the efficient synthesis of Pd(II)-based 2D mesoporous covalent organic framework (COF) along with a small amount of Pd(0), which is characterized by different characterization tools. These studies suggest that this material with low bandgap energy (Eg) of 1.73 eV can exhibit great photocatalytic activity toward CO2 fixation rea...

As the ultimate carbon emission of the combustion process, carbon dioxide (CO 2 ) is a serious environmental hazard in increasing the global climate temperature through the greenhouse effect. Porous heterogeneous catalysts have drawn huge interest for carbon capture and in the past decades; significant developments can be observed in their fabricat...

Photocatalytic carboxylation of Aryl derivatives was demonstrated under the atmospheric pressure of CO2 using the mesoporous Covalent Organic Framework (COF) as the active photocatalyst with Triethylamine (TEA) as a sacrificial electron source in visible light. Greater than 91% yield of the isolated product is achieved with a 5 mg catalyst. The rea...

Correction for ‘Flower-like AgNPs@m-MgO as an excellent catalyst for CO 2 fixation and acylation reactions under ambient conditions’ by Arpita Hazra Chowdhury et al. , New J. Chem. , 2018, 42 , 14194–14202, DOI: 10.1039/C8NJ02286K.

Silver nanoparticles with large surface area and surface available atoms provide promising opportunities to deal with the challenges in catalysis and environmental remediation. Herein, silver nanoparticles impregnated reduced graphene oxide (AgNPs@RGO) is synthesized through the in-situ reduction process using green guava fruit extract as a reducin...

The direct addition of amines to alkynes and olefins is an elegant approach for C−N bond formation in contrast to other conventional synthetic organic methods that afford higher substituted amines; comprising essential organo‐nitrogen compounds which are the scaffolds present in important N‐heterocycles. Heterogeneous catalyzed direct amination is...

We have demonstrated the photo-catalytic fixation of CO2 over epoxides for the formation of corresponding cyclic carbonates using a mesoporous Covalent Organic Framework (COF) which acts as a potential photocatalyst with TBAB (Tetrabutyl ammonium bromide), 5 mol% as the co-catalyst under atmospheric pressure in visible light. Greater than 86% yield...

The present study describes the favourable construction of the crystalline covalent organic framework (COF) with exceptional surface area, tunable pore size and huge CO2 capture efficiency to facilitate a novel multicomponent cyclization by introducing CO2 into extremely reactive organic skeletons. In the presence of catalytic Cu/CuxOy NPs-loaded C...

Now-a-days carbon dioxide fixation has received much more attention for its imminent application as an abundant C1 source and a range of important fine chemicals which can be manufactured via this fixation. Here copper nanoparticles integrated triazinetriamine derived porous organic polymer-based (Cu-NPs@TzTa-POP) material was produced by a simple...

Levulinic acid (LA), a lignocellulosic biomass-derived compound has been recognized as one of the versatile building blocks for the synthesis of commodity chemicals having biofuel properties together with potential as precursor for the synthesis of several value-added pharmaceuticals and polymers. Herein, we report the synthesis of catalytically ac...

In this work, a functionalized chloromethylated polystyrene supported polymer complex of palladium was designed and synthesized in the three‐step process. The synthesized heterogeneous Pd(DAP‐DEAS‐MERF) catalyst was characterized by Field emission scanning electron microscopy, Energy dispersive analysis of X‐rays, Elemental mapping, Atomic absorpti...

We have described a facile solvothermal synthesis of a sheet-like α-Ti(HPO4)2. H2O nanomaterial. The material holds 10.7 nm nanoparticles along with ordered mesopores throughout its hexagonal building blocks. The material possesses 3.86 eV bandgap energy and works as an efficient catalyst for the selective synthesis of ureas from a broad range of i...

We have designed mesoporous AgNPs decorated COF (Ag/TFPG-DMB COF) nanomaterial which has been formed by an easy ex-situ synthetic method. The synthesized material is characterized by FTIR, PXRD, UV–vis, N2 adsorption–desorption studies, TEM, FESEM and XPS. The material showed the generation of identical mesopore at 3.9 nm. It is observed that the m...

Hollow spherical ZnO particles with porous exterior surface are successfully synthesized and employed as a cost effective heterogeneous catalyst for CO2 fixation in a wide range of epoxides at atmospheric pressure and room temperature to form cyclic carbonates. In fact, conversion of carbon-di-oxide into value aided chemicals is one of the major ar...

The present work introduces the favourable synthesis of porous functionalized nanomaterials with excellent surface area, porosity and high CO2 capture ability to serve cyclizative reactions by incorporating CO2 molecule in highly reactive organic moieties. We have attempted to fulfil the target by the decoration of Ag NPs over the exterior surfaces...

We have designed Sheet-like nanoporous COF (TFP-DM COF) nanomaterial which has been formed by an easy solvothermal synthetic method. The synthesized material is characterized by FTIR, PXRD, UV-Vis, N2 adsorption–desorption studies, TEM and FESEM. We demonstrate the photocatalytic reduction of CO2 into HCOOH and HCHO using the synthesize Covalent Or...

The benign synthesis of macroporous polystyrene supported chromium MPS-Cr(III)-alen catalyst has been carried out precisely, which is characterized by different spectroscopic instruments like FT-IR, UV-Vis spectra, TEM, TGA and SEM. The MPS-Cr(III)-alen catalyst shows noteworthy performance for the sustainable development of the organic cyclic carb...

An amide‐imine conjugate, (E)‐N′‐((2‐hydroxybenzen‐1‐yl) methylene)‐4‐methylbenzohydrazide (H2LPTASAL), derived from 4‐methyl‐benzoic acid hydrazide (PTA) and 2‐hydroxybenzaldehyde is used to prepare Mo (VI), Cu (II) and Fe (III) complexes. The X‐ray structurally characterized complexes have been explored as catalyst for amine assisted asymmetric r...

Use of formic acid or carbon dioxide as C1 source for the synthesis of medicinally as well as industrially imperative compounds has been gaining predominant attention of synthetic chemists in the current era. This article describes the synthesis of an eco-friendly low cost modified Merrifield supported zinc catalyst [Zn(Meri-Ald-Py)]. Characterizat...

Synthesis of important organic chemicals through sustainable and green methods is always demanding for the scientific community. Fixation of carbon dioxide for this purpose is very attracting as CO 2 is non‐toxic, easily available, naturally abundant, recyclable, non‐flammable and inexpensive C1 resource and also the concentration of CO 2 (most res...

Metal–organic frameworks (MOFs) are crystalline porous materials having unique properties that can be exploited for drug encapsulation and membrane transport. Their surface can be modified for different drugs and better membrane transport, controlled release of drugs can be ensured by their usage and they can be detected and studied by conventional...

Silver nanoparticles (NPs) embedded over porous polystyrene (AgNPs@m-PS-PC) material have been synthesized through the polymerization of polystyrene amine and 2-pyridinecarbaldehyde followed by reduction of silver nitrate in methanol. The structure and morphology of this porous material were characterized by XRD, TEM, SEM, FTIR spectra, UV-Vis spec...

We demonstrate the photocatalytic reduction of CO2 into HCOOH using mesoporous Covalent Organic Framework (COF) as the active photocatalyst, Co(dmg)2 as co-catalyst with Triethanolamine (TEOA) as sacrificial electron source under atmospheric pressure. Greater than 125 TON is achieved with 10 mg catalyst. The reaction cycle is dependent on the use o...

An efficient synthesis of primary carbamates and N-substituted ureas are explored with a newly developed heterogeneous polymer supported iron catalyst in the presence of a sustainable carbonylation source. The Merrifield anchored iron(II)-anthra catalyst [FeII(Anthra-Merf)] was synthesized by functionalization of Merrifield polymer followed by graf...

A novel approach has been taken for the synthesis of a microporous polymeric materials of BBA‐1 and BBA‐2 (benzene−benzylamine), which is a POP (porous organic polymer) with its excellent surface area determined by BET study, via Friedel‐Crafts alkylation of benzene and benzylamine (or 4‐methoxybenzylamine) by utilizing a cross‐linker (formaldehyde...

The recent advancement on the tailored synthesis of hypercrosslinked microporous polymer (HMP‐2) has assembled significant concentration by the virtue of its adjustable porosity, operative design and absolutely ordering structure. This perfectly structured Ag NPs supported carbocatalyst (Ag‐HMP‐2) has been synthesized by Friedel‐Crafts alkylation b...

A novel complex catalyst, POP-Palladium(II)has been synthesized. The developed catalyst has been characterized by XRD, EDX, Scanning electron micrographs (FE-SEM), HR-TEM, FTIR spectra, UV-Vis spectra, TGA and BET isotherm. The reactivity of the incorporated Palladium(II) catalyst was tested for the in situ carbonylation of aryl iodides and seconda...

Designing of low cost catalytic system for new C-C bond formation reactions is very challenging in synthetic organic chemistry. Herein, we report a new copper oxide immobilized covalent organic framework (COF) material CuII-TRIPTA by grafting of CuO nanoparticles at the surface of a nitrogen rich porous COF material TRIPTA. TRIPTA has been synthesi...

In current era the scientific community is very much interested to utilize green house gas carbon dioxide through chemical fixation in order to produce value based fine organic chemicals. The chemical combination of atmospheric carbon dioxide, isocyanides and 2-iododaniline in one pot reaction for the synthesis of Quinazoline-2,4(1H,3H)-diones deri...

Deforestation and uncontrolled emission of carbon dioxide (CO2) through abundant use of fossil fuels result global warming. This serious threat to the atmosphere has deeply motivated the researchers to develop new strategies for chemical fixation of CO2 and biofuel synthesis. Here we report the sulfonated porous polytriphenylamine (SPPTPA‐1, BET su...

Selective N-methylation and carbamate formation reactions are demonstrated via chemical incorporation of CO2 using Zn loaded TFP-DAQ COF (Covalent Organic Framework) as active catalyst under mild reaction condition. Selective N-methylation and N-formylation reactions are occurred by simply varying the type of solvent. The Zn (II) @ TFP- DAQ COF cat...

We demonstrate the photocatalytic reduction of CO2 in to HCOOH using mesoporous SnO2 nano particles as the active photocatalyst in water as sacrificial electron source as well as solvent under atmospheric pressure. Greater than 114 TON is achieved with 10 mg of catalyst. The reaction does not occur in the absense of light (white LED) and can readil...

Designing novel catalytic system for efficient synthesis of enantiomerically pure β-hydroxy nitroalkanes is a challenging area of research. Herein, we have designed a chiral heterogeneous catalyst through the successful loading of chiral Cr(III)-salen complex over sulfonic acid functionalized SBA-15 material. The catalyst has been thoroughly charac...

An amide‐imine conjugate (H2L¹), prepared from 2‐(naphthalen‐1‐yl)acetohydrazide (AC) and 4‐(diethylamino)‐2‐hydroxybenzaldehyde is reacted with VOSO4 leading to methoxy bridged dinuclear dioxo‐vanadium complex viz. [VO(L¹)(μ‐OMe)]2 (1). Both H2L² and 1 are structurally characterized by single crystal X‐ray diffraction analysis. The complex (1) is...

CO2 fixation reactions by inserting it in reactive organic compounds are very challenging for the utilization of this abundant and harmful gaspresent in air and thus to mitigate this greenhouse gas responsible for global warming. This can be achieved by proper designing of functionalized porous nanocatalysts having high surface area, porosity and g...

Development of low cost, eco-friendly heterogeneous catalyst for the production of value added organic compounds has been drawn a considerable attention to the synthetic chemists in recent era. Keeping the above idea in our mind, we have design and synthesized a polymer anchored Al(III) composite from modified Merrifield resin. The composite was ch...

Porous nanostructures having well-defined pore structures and surface functionalities are widely used in different areas of applied science and engineering. Depending upon the pore size and framework building blocks, there are a total of six types of nanoporous materials available. Due to the large surface to volume ratio in addition to the interli...

CO2 insertion reactions draw the attention of researchers today as they could have a major positive impact on the global carbon balance. Flower-like mesoporous titanium phosphate (Ti(HPO4)2.H2O) has been produced by an easy template free method via refluxing at 50 0C for 18 hours. The product is characterized by PXRD, UV-vis, FTIR, N2 adsorption–de...

Synthesis of cyclic carbonates via CO 2 cycloaddition reaction with epoxides is one of the promising strategies to valorize greenhouse gas CO 2 , thereby fixing it to the value-added chemicals. In this study, uniform copper oxide nanoparticles (Cu 2 O, Cu 4 O 3) with variable oxidation states are stabilized by functionalized covalent organic framew...

MXenes have become an important family of 2-D layered materials having immense potential to be utilized in the fields of analytical chemistry, as a target for environmental monitoring and bio-medical applications. This chapter deals in detail with the diverse and far-reaching contribution of MXenes in biomedical sciences. Finally, a discussion is m...

Chemical fixation of carbon dioxide through suitable catalytic pathways is very demanding in the context of sustainable environment. An environmentally benign synthetic studies of N‐formylated amine derivatives by carbon dioxide fixation of amines have been investigated in presence of Merrifield resin supported palladium nanomaterial (Pd‐PS‐amtp ca...

A new heterogeneous polymer supported solid phase oxovanadium(IV)catalyst was synthesized successfully. The designed catalyst furnished excellent results in the oxidation reactions of various aromatic alkanes, e.g. toluene, para-xylene, mesitylene. The polymer supported vanadium complex was proved also an efficient catalyst for the oxidation of aro...

A novel mesoporous cerium‐incorporated anthranilic acid binded chloromethylated polystyrene (PS‐AN‐Ce) has been developed by functionalization of chloromethylated polystyrene with anthranilic acid in DMF medium, followed by grafting of cerium on its surface using CeCl3·7H2O. The synthesized PS‐AN‐Ce has been characterized by FESEM, EDAX, AAS, FTIR,...

Two very important catalytic transformations for CO2 in recent years are terminal alkyne carboxylation and amine formylation. Hydrothermal and impregnation methods have been used to produce nanoporous ZnO and CuBr/ZnO materials respectively. The materials are characterized by different characterization methods like PXRD, FTIR, FESEM, TEM, TG‐DTA an...

Catalytic fixation of CO2 through chemical reactions is always a challenging task of synthetic chemistry. This paper represents the design and synthesis of an eco‐friendly low cost zinc metal containing heterogeneous catalyst of aminically modified Graphene Oxide. Characterization of the catalyst has been carried out by Raman and FTIR spectra, AAS,...

In the last few years, nanoparticles and nanocomposites have emerged as one of the promising candidates to scientists from various fields because of their immense potential to revolutionize science and technology. The nanoscale particles and composites are synthesized with a broad range of metals like gold, silver, iron, metal oxides and semiconduc...

Porous nanostructures having well-defined pore structures and surface functionalities are widely used in different areas of applied science and engineering. Depending upon the pore size and framework building blocks, there are a total of six types of nanoporous materials available. Due to the large surface to volume ratio in addition to the interli...