Dr. Md. Masuqul Haque - Academia.edu (original) (raw)

Papers by Dr. Md. Masuqul Haque

International Journal of Materials Science and Applications, 2015

Asian Journal of Chemical Sciences, 2019

Two complexes of Cu(II) and Ni(II) with the ligand N- (4-methoxybenzylidene) isonicotinohydrazide... more Two complexes of Cu(II) and Ni(II) with the ligand N- (4-methoxybenzylidene) isonicotinohydrazide, having the formula [M(La)2]2+ (M = Cu(II) and Ni(II)) were synthesized. The ligand was synthesized by the condensation of isonicotinic acid hydrazide (isoniazid) with 4- methoxybenzaldehyde (p- anisaldehyde). The complexes were characterized by FTIR, UV-Vis spectroscopy, molar conductivity, magnetic susceptibility and evaluated for their in vitro antibacterial activity against human pathogens like gram negative Escherichia coli (E. coli) and gram positive Bacillus cereus (B. cereus)strains. The results indicate that all complexes consist of N and O coordination with metals has better antimicrobial activity.

International Research Journal of Pure and Applied Chemistry, 2020

In this study, jute polyethylene clay nanocomposites were developed using hot press technique. Th... more In this study, jute polyethylene clay nanocomposites were developed using hot press technique. The hydrophilic nature of fiber and nanoclay exhibited poor interfacial interaction to hydrophobic polymer matrix. In order to enhance the interfacial interaction among fiber, polymer, and nanofillers, the chemically treated jute (with benzenediazonium salt, propionic anhydride, and 3-isocyanatopropyltriethoxy silane) and organically modified nanoclay were used for the manufacturing of nanocomposites in this study. The effect of chemical treatments and nanoclay addition on the improvement of absorption characterizations of prepared nanocomposites against water and few chemical reagents have been investigated. It has been observed that the treated jute composites showed higher improvement in absorption properties than raw jute composite and silane treated jute composite found highest value. In addition, nanoclay filled composites showed higher improvement than composite without nanoclay and...

Asian Journal of Applied Chemistry Research, 2020

Copper (II) complex of the ligand, thiophene-2-aldehyde semicarbazone was synthesized and charact... more Copper (II) complex of the ligand, thiophene-2-aldehyde semicarbazone was synthesized and characterized. Their structures were explored on the basis of CHN analysis, conductance and magnetic susceptibility measurements, spectral studies (FT-infrared and ESI-MS) and thermogravimetric analysis (TGA). It has been observed from spectral and analytical studies, the copper complex have the composition of [CuL(CH3COO)2(H2O)] [where L is thiophene-2-aldehyde semicarbazone]. The electrospray mass spectrum of the ligand and complex exhibited ion at mass-to charge ratio (m/z) of 169.13 and 368.86 matching the calculated values for the molecular ion of the ligand and complex, respectively. One mole of the ligand behaves as bidentate chelating agents around the Cu(II) ion. From conductivity studies, we obtained that the copper complex of the ligand, thiophene-2-aldehyde semicarbazone had no ionic properties. All data confirmed a trigonal bipyramidal geometry of the complex. Antibacterial activit...

Asian Journal of Chemical Sciences, 2019

Two complexes of Cu(II) and Ni(II) with the ligand N- (4-methoxybenzylidene) isonicotinohydrazide... more Two complexes of Cu(II) and Ni(II) with the ligand N- (4-methoxybenzylidene) isonicotinohydrazide, having the formula [M(La)2]2+ (M = Cu(II) and Ni(II)) were synthesized. The ligand was synthesized by the condensation of isonicotinic acid hydrazide (isoniazid) with 4- methoxybenzaldehyde (p- anisaldehyde). The complexes were characterized by FTIR, UV-Vis spectroscopy, molar conductivity, magnetic susceptibility and evaluated for their in vitro antibacterial activity against human pathogens like gram negative Escherichia coli (E. coli) and gram positive Bacillus cereus (B. cereus)strains. The results indicate that all complexes consist of N and O coordination with metals has better antimicrobial activity.

Optik, 2017

The intense red-emitting NaCaY0.2Eu0.8(MoO4)3 phosphor was prepared by using a sol-gel method for... more The intense red-emitting NaCaY0.2Eu0.8(MoO4)3 phosphor was prepared by using a sol-gel method for the first time. Thermogravimetric-diferential thermal analysis, X-ray diffraction, field-emission scanning electron microscopy, FT-IR and luminescent measurements were used to characterize the NaCaY0.2Eu0.8(MoO4)3 particles. The resulting products obtained by using the sol-gel method have a narrower size distribution and a more regular particle shape than those obtained by using the solid-state reaction. The spectra analysis indicated that the obtained phosphor could be excited by UV light of 395 nm and visible light of 466 nm, also emits intense red light with a maximum at about 614 nm. The luminescent intensity of sol-gel derived is comparable with the solid state product and it is about 84 % of solid-state product under 395 nm light excitation. Comparative study with YAG:Ce and CaS:Eu 2+ phosphors, suggested that our synthesized phosphor can be used as an efficient red-emitting phosphor to compensate the red deficiency of YAG:Ce phosphor and also can serve as an alternative phosphor to replace sulfide based phosphors in the solid-state lighting applications.

Asian Journal of Research in Chemistry, 2015

Some new mixed ligand peroxo complexes of U(VI) and Mo(VI) with amino acids and heterocyclic amin... more Some new mixed ligand peroxo complexes of U(VI) and Mo(VI) with amino acids and heterocyclic amines have been synthesized. The complexes have been obtained to be [MO(O2)(DA)2L], Where, M= (VI), Mo(VI); DA=deprotonated amino acid such as valine, cysteine; L=heterocyclic amines such as quinoline, isoquinoline, 8-hydoxyquinoline, 1.10-phenanthroline, pyridine, 2-aminopyridine. Cytotoxic activities of the complexes have been examined against brine shrimp nauplii. U(VI) complexes were found to be more toxic to brine shrimp then Mo(VI) complexes.

European Journal of Inorganic Chemistry, 2010

... Khan, NA, Haque, MM and Jhung, SH (2010), Accelerated Syntheses of Porous Isostructural Lanth... more ... Khan, NA, Haque, MM and Jhung, SH (2010), Accelerated Syntheses of Porous Isostructural Lanthanide–Benzenetricarboxylates (Ln–BTC) Under Ultrasound at Room Temperature. ... National Research Fund (NRF); Ministry of Education, Science and Technology (MEST). ...

International Journal of Advanced Research in Chemical Science, 2020

Cu (II) and Ni (II) metal ions complexes of Schiff base derived from the condensation reaction of... more Cu (II) and Ni (II) metal ions complexes of Schiff base derived from the condensation reaction of appropriate amount of ethane-1,2-diamine, Salicylaldehyde and 2-furfuraldehyde in alcoholic medium. The obtained complexes are characterized by using FTIR spectroscopy, UV-Vis spectroscopy, and Magnetic susceptibility and Conductivity measurements. From the above characterizations, all the synthesized complexes obtained as monomeric structure and the metals center moieties are four-coordinated with square planar geometry. The antibacterial screening activity revealed that Cu(II) complexes showed moderate activity against tested bacterial strains and slightly higher compared to the uncoordinated ligand

ChemInform, 2008

Luminescence D 6540 Investigation of a New Red-Emitting, Eu 3+-Activated MgAl2O4 Phosphor.-Mg 0.9... more Luminescence D 6540 Investigation of a New Red-Emitting, Eu 3+-Activated MgAl2O4 Phosphor.-Mg 0.99 Eu 0.01 Al 2 O 4 is synthesized by a combustion method starting with a mixture of Mg(NO3)2, Al(NO3)3, Eu2O3, and urea (500°C, < 5 min). The samples are characterized by powder XRD, SEM, EPR, photoluminescence, and FTIR spectroscopy. The material exhibits a strong red emission around 611 nm under 394 nm excitation. Eu 3+-doped MgAl2O4 phosphors have the potential to be used as red-emitting phosphors in display devices.

Materials Letters, 2009

Eu 3+-activated novel red phosphors, MLa 2 (MoO 4) 4 (M = Ba, Sr and Ca) were synthesized by the ... more Eu 3+-activated novel red phosphors, MLa 2 (MoO 4) 4 (M = Ba, Sr and Ca) were synthesized by the conventional solid state method. The excitation and emission spectra indicate that these phosphors can be effectively excited by UV (395 nm) and blue (466 nm) light, and exhibit a satisfactory red performance at 614 nm. Upon excitation with a 466 nm light, our synthesized phosphors have stronger emission intensity than the sulfide red phosphors used in white LEDs. Due to high emission intensity and a good excitation profile, the Eu 3+-doped CaLa 2 (MoO 4) 4 phosphor may be a promising candidate in solid-state lighting applications.

Journal of Alloys and Compounds, 2009

Novel red-emitting phosphors, NaMY(MoO 4) 3 :Eu 3+ (M = Sr and Ca) were prepared by solid-state m... more Novel red-emitting phosphors, NaMY(MoO 4) 3 :Eu 3+ (M = Sr and Ca) were prepared by solid-state method. Their formation and phase purity were confirmed by X-ray powder diffraction (XRD) analysis. The excitation and emission spectra indicate that our obtained phosphors can be effectively excited by ultraviolet (395 nm) and blue (466 nm) light. In this research work, we have compared the luminescent intensity of our synthesized products with recently reported some molybdates-based promising red phosphors. Among these phosphors, NaCaY(MoO 4) 3 :Eu 3+ shows the intense red emission under the excitation wavelength of 395 or 466 nm light. Upon excitation with a 466 nm light, the present synthesized phosphors have higher emission intensity than that from the commercial red phosphor (CaS:Eu 2+). Due to a high emission intensity and a good excitation profile, the Eu 3+-doped NaCaY(MoO 4) 3 phosphors can be used in solid-state lighting applications and this phosphor can serve as an alternative phosphor to replace a widely used red-emitting CaS:Eu phosphor in the field of LEDs applications.

SSRN Electronic Journal, 2022

Journal of the Chilean Chemical Society, 2021

A series of transition metal complexes having general formula [M(L1)(L2)](NO3)2, (where, M = Cu(I... more A series of transition metal complexes having general formula [M(L1)(L2)](NO3)2, (where, M = Cu(II), Ni(II), and Zn(II)) of mixed ligands, L1 = Isonicotinamido-Thiophene-2-Carbaldimine, L2 = 1, 10-phenanthroline, were synthesized. The obtained compounds were successfully characterized by different spectroscopic techniques. Conductivity measurements indicated that all complexes were 1:2 electrolytes in nature. IR spectra indicated that ligands coordinated to metals via the carbonyl oxygen atom and the azomethine nitrogen atom. Magnetic moment values and UV-Visible spectra confirmed square planar structure around the Cu(II), and Ni(II) ions, and a tetrahedral geometry around the Zn(II) ion.The metal complexes were tested against Escherichia coli and Pseudomonas sp. Among the tested compounds, Zn(II)complex showed higher antibacterial activity over both bacterial strains against reference drug Kanamycin. Moreover, synthesized metal complexes exhibited moderate antioxidant activity than the Schiff base. Cu(II) complexes were found to be most active whereas, Zn(II) complexes showed the lowest antioxidant activity comparable to the BHT.

Asian Journal of Research in Chemistry, 2020

International Journal of Materials Science and Applications, 2015

Asian Journal of Chemical Sciences, 2019

Two complexes of Cu(II) and Ni(II) with the ligand N- (4-methoxybenzylidene) isonicotinohydrazide... more Two complexes of Cu(II) and Ni(II) with the ligand N- (4-methoxybenzylidene) isonicotinohydrazide, having the formula [M(La)2]2+ (M = Cu(II) and Ni(II)) were synthesized. The ligand was synthesized by the condensation of isonicotinic acid hydrazide (isoniazid) with 4- methoxybenzaldehyde (p- anisaldehyde). The complexes were characterized by FTIR, UV-Vis spectroscopy, molar conductivity, magnetic susceptibility and evaluated for their in vitro antibacterial activity against human pathogens like gram negative Escherichia coli (E. coli) and gram positive Bacillus cereus (B. cereus)strains. The results indicate that all complexes consist of N and O coordination with metals has better antimicrobial activity.

International Research Journal of Pure and Applied Chemistry, 2020

In this study, jute polyethylene clay nanocomposites were developed using hot press technique. Th... more In this study, jute polyethylene clay nanocomposites were developed using hot press technique. The hydrophilic nature of fiber and nanoclay exhibited poor interfacial interaction to hydrophobic polymer matrix. In order to enhance the interfacial interaction among fiber, polymer, and nanofillers, the chemically treated jute (with benzenediazonium salt, propionic anhydride, and 3-isocyanatopropyltriethoxy silane) and organically modified nanoclay were used for the manufacturing of nanocomposites in this study. The effect of chemical treatments and nanoclay addition on the improvement of absorption characterizations of prepared nanocomposites against water and few chemical reagents have been investigated. It has been observed that the treated jute composites showed higher improvement in absorption properties than raw jute composite and silane treated jute composite found highest value. In addition, nanoclay filled composites showed higher improvement than composite without nanoclay and...

Asian Journal of Applied Chemistry Research, 2020

Copper (II) complex of the ligand, thiophene-2-aldehyde semicarbazone was synthesized and charact... more Copper (II) complex of the ligand, thiophene-2-aldehyde semicarbazone was synthesized and characterized. Their structures were explored on the basis of CHN analysis, conductance and magnetic susceptibility measurements, spectral studies (FT-infrared and ESI-MS) and thermogravimetric analysis (TGA). It has been observed from spectral and analytical studies, the copper complex have the composition of [CuL(CH3COO)2(H2O)] [where L is thiophene-2-aldehyde semicarbazone]. The electrospray mass spectrum of the ligand and complex exhibited ion at mass-to charge ratio (m/z) of 169.13 and 368.86 matching the calculated values for the molecular ion of the ligand and complex, respectively. One mole of the ligand behaves as bidentate chelating agents around the Cu(II) ion. From conductivity studies, we obtained that the copper complex of the ligand, thiophene-2-aldehyde semicarbazone had no ionic properties. All data confirmed a trigonal bipyramidal geometry of the complex. Antibacterial activit...

Asian Journal of Chemical Sciences, 2019

Two complexes of Cu(II) and Ni(II) with the ligand N- (4-methoxybenzylidene) isonicotinohydrazide... more Two complexes of Cu(II) and Ni(II) with the ligand N- (4-methoxybenzylidene) isonicotinohydrazide, having the formula [M(La)2]2+ (M = Cu(II) and Ni(II)) were synthesized. The ligand was synthesized by the condensation of isonicotinic acid hydrazide (isoniazid) with 4- methoxybenzaldehyde (p- anisaldehyde). The complexes were characterized by FTIR, UV-Vis spectroscopy, molar conductivity, magnetic susceptibility and evaluated for their in vitro antibacterial activity against human pathogens like gram negative Escherichia coli (E. coli) and gram positive Bacillus cereus (B. cereus)strains. The results indicate that all complexes consist of N and O coordination with metals has better antimicrobial activity.

Optik, 2017

The intense red-emitting NaCaY0.2Eu0.8(MoO4)3 phosphor was prepared by using a sol-gel method for... more The intense red-emitting NaCaY0.2Eu0.8(MoO4)3 phosphor was prepared by using a sol-gel method for the first time. Thermogravimetric-diferential thermal analysis, X-ray diffraction, field-emission scanning electron microscopy, FT-IR and luminescent measurements were used to characterize the NaCaY0.2Eu0.8(MoO4)3 particles. The resulting products obtained by using the sol-gel method have a narrower size distribution and a more regular particle shape than those obtained by using the solid-state reaction. The spectra analysis indicated that the obtained phosphor could be excited by UV light of 395 nm and visible light of 466 nm, also emits intense red light with a maximum at about 614 nm. The luminescent intensity of sol-gel derived is comparable with the solid state product and it is about 84 % of solid-state product under 395 nm light excitation. Comparative study with YAG:Ce and CaS:Eu 2+ phosphors, suggested that our synthesized phosphor can be used as an efficient red-emitting phosphor to compensate the red deficiency of YAG:Ce phosphor and also can serve as an alternative phosphor to replace sulfide based phosphors in the solid-state lighting applications.

Asian Journal of Research in Chemistry, 2015

Some new mixed ligand peroxo complexes of U(VI) and Mo(VI) with amino acids and heterocyclic amin... more Some new mixed ligand peroxo complexes of U(VI) and Mo(VI) with amino acids and heterocyclic amines have been synthesized. The complexes have been obtained to be [MO(O2)(DA)2L], Where, M= (VI), Mo(VI); DA=deprotonated amino acid such as valine, cysteine; L=heterocyclic amines such as quinoline, isoquinoline, 8-hydoxyquinoline, 1.10-phenanthroline, pyridine, 2-aminopyridine. Cytotoxic activities of the complexes have been examined against brine shrimp nauplii. U(VI) complexes were found to be more toxic to brine shrimp then Mo(VI) complexes.

European Journal of Inorganic Chemistry, 2010

... Khan, NA, Haque, MM and Jhung, SH (2010), Accelerated Syntheses of Porous Isostructural Lanth... more ... Khan, NA, Haque, MM and Jhung, SH (2010), Accelerated Syntheses of Porous Isostructural Lanthanide–Benzenetricarboxylates (Ln–BTC) Under Ultrasound at Room Temperature. ... National Research Fund (NRF); Ministry of Education, Science and Technology (MEST). ...

International Journal of Advanced Research in Chemical Science, 2020

Cu (II) and Ni (II) metal ions complexes of Schiff base derived from the condensation reaction of... more Cu (II) and Ni (II) metal ions complexes of Schiff base derived from the condensation reaction of appropriate amount of ethane-1,2-diamine, Salicylaldehyde and 2-furfuraldehyde in alcoholic medium. The obtained complexes are characterized by using FTIR spectroscopy, UV-Vis spectroscopy, and Magnetic susceptibility and Conductivity measurements. From the above characterizations, all the synthesized complexes obtained as monomeric structure and the metals center moieties are four-coordinated with square planar geometry. The antibacterial screening activity revealed that Cu(II) complexes showed moderate activity against tested bacterial strains and slightly higher compared to the uncoordinated ligand

ChemInform, 2008

Luminescence D 6540 Investigation of a New Red-Emitting, Eu 3+-Activated MgAl2O4 Phosphor.-Mg 0.9... more Luminescence D 6540 Investigation of a New Red-Emitting, Eu 3+-Activated MgAl2O4 Phosphor.-Mg 0.99 Eu 0.01 Al 2 O 4 is synthesized by a combustion method starting with a mixture of Mg(NO3)2, Al(NO3)3, Eu2O3, and urea (500°C, < 5 min). The samples are characterized by powder XRD, SEM, EPR, photoluminescence, and FTIR spectroscopy. The material exhibits a strong red emission around 611 nm under 394 nm excitation. Eu 3+-doped MgAl2O4 phosphors have the potential to be used as red-emitting phosphors in display devices.

Materials Letters, 2009

Eu 3+-activated novel red phosphors, MLa 2 (MoO 4) 4 (M = Ba, Sr and Ca) were synthesized by the ... more Eu 3+-activated novel red phosphors, MLa 2 (MoO 4) 4 (M = Ba, Sr and Ca) were synthesized by the conventional solid state method. The excitation and emission spectra indicate that these phosphors can be effectively excited by UV (395 nm) and blue (466 nm) light, and exhibit a satisfactory red performance at 614 nm. Upon excitation with a 466 nm light, our synthesized phosphors have stronger emission intensity than the sulfide red phosphors used in white LEDs. Due to high emission intensity and a good excitation profile, the Eu 3+-doped CaLa 2 (MoO 4) 4 phosphor may be a promising candidate in solid-state lighting applications.

Journal of Alloys and Compounds, 2009

Novel red-emitting phosphors, NaMY(MoO 4) 3 :Eu 3+ (M = Sr and Ca) were prepared by solid-state m... more Novel red-emitting phosphors, NaMY(MoO 4) 3 :Eu 3+ (M = Sr and Ca) were prepared by solid-state method. Their formation and phase purity were confirmed by X-ray powder diffraction (XRD) analysis. The excitation and emission spectra indicate that our obtained phosphors can be effectively excited by ultraviolet (395 nm) and blue (466 nm) light. In this research work, we have compared the luminescent intensity of our synthesized products with recently reported some molybdates-based promising red phosphors. Among these phosphors, NaCaY(MoO 4) 3 :Eu 3+ shows the intense red emission under the excitation wavelength of 395 or 466 nm light. Upon excitation with a 466 nm light, the present synthesized phosphors have higher emission intensity than that from the commercial red phosphor (CaS:Eu 2+). Due to a high emission intensity and a good excitation profile, the Eu 3+-doped NaCaY(MoO 4) 3 phosphors can be used in solid-state lighting applications and this phosphor can serve as an alternative phosphor to replace a widely used red-emitting CaS:Eu phosphor in the field of LEDs applications.

SSRN Electronic Journal, 2022

Journal of the Chilean Chemical Society, 2021

A series of transition metal complexes having general formula [M(L1)(L2)](NO3)2, (where, M = Cu(I... more A series of transition metal complexes having general formula [M(L1)(L2)](NO3)2, (where, M = Cu(II), Ni(II), and Zn(II)) of mixed ligands, L1 = Isonicotinamido-Thiophene-2-Carbaldimine, L2 = 1, 10-phenanthroline, were synthesized. The obtained compounds were successfully characterized by different spectroscopic techniques. Conductivity measurements indicated that all complexes were 1:2 electrolytes in nature. IR spectra indicated that ligands coordinated to metals via the carbonyl oxygen atom and the azomethine nitrogen atom. Magnetic moment values and UV-Visible spectra confirmed square planar structure around the Cu(II), and Ni(II) ions, and a tetrahedral geometry around the Zn(II) ion.The metal complexes were tested against Escherichia coli and Pseudomonas sp. Among the tested compounds, Zn(II)complex showed higher antibacterial activity over both bacterial strains against reference drug Kanamycin. Moreover, synthesized metal complexes exhibited moderate antioxidant activity than the Schiff base. Cu(II) complexes were found to be most active whereas, Zn(II) complexes showed the lowest antioxidant activity comparable to the BHT.

Asian Journal of Research in Chemistry, 2020