Amine functionalized K10 montmorillonite: a solid acid-base catalyst for the Knoevenagel condensation reactionG Bishwa Bidita Varadwaj
C and MC Department, Institute of Minerals and Materials, Technology, Bhubaneswar 751013, Orissa, India
Dalton Trans 42:5122-9. 2013
..The catalyst could be recycled and reused for several runs without any loss of inherent catalytic activity...
- Adsorption of toxic metal ion Cr(VI) from aqueous state by TiO2-MCM-41: equilibrium and kinetic studies
Kulamani Parida
Colloids and Material Chemistry Department, Institute of Minerals and Materials Technology CSIR, Bhubaneswar 751013, Odisha, India
J Hazard Mater 241:395-403. 2012
..Thermodynamic parameters suggested that the adsorption process is endothermic in nature and desorption studies indicated a chemisorption mode...
- Facile synthesis of InGaZn mixed oxide nanorods for enhanced hydrogen production under visible light
Satyabadi Martha
Colloids and Materials Chemistry Department, CSIR Institute of Minerals and Materials Technology, Bhubaneswar 751 013, Odisha, India
Dalton Trans 41:14107-16. 2012
..Among all the photocatalysts, InGaZn (3 : 1 : 1) gives the best result towards the production of hydrogen energy under visible light irradiation...
Recent progress in the development of carbonate-intercalated Zn/Cr LDH as a novel photocatalyst for hydrogen evolution aimed at the utilization of solar lightKulamani Parida
Colloids and Materials Chemistry Department, Institute of Minerals and Materials Technology CSIR, Bhubaneswar, 751 013, Orissa, India
Dalton Trans 41:1173-8. 2012
..This work provides a detailed understanding of the semiconductor properties of LDHs for photocatalytical hydrogen evolution...
- Visible-light driven Gd2Ti2O7/GdCrO3 composite for hydrogen evolution
K M Parida
Colloids and Materials Chemistry Department, Institute of Minerals and Materials Technology CSIR, Bhubaneswar, 751 013, Orissa, India
Dalton Trans 40:12839-45. 2011
..The highest efficiency is observed over the composite GTC (Cr:Gd:Ti = 1:1:1). On the basis of photocurrent measurements and PL, a mechanism for the enhanced photocatalytic activity has been discussed...
- Chemoselective oxidation of primary alcohols catalysed by Ce(iii)-complex intercalated LDH using molecular oxygen at room temperature
Sudarshan Singha
Colloids and Materials Chemistry Department, Institute of Minerals and Materials Technology, Bhubaneswar, 751013, Orissa, India
Dalton Trans 40:11838-44. 2011
..The heterogeneous catalytic system can also be recovered and reused for several cycles without a significant loss of catalytic activity...
- Removal of phenolic compounds from aqueous solutions by adsorption onto manganese nodule leached residue
K M Parida
Colloids and Materials Chemistry Department, Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
J Hazard Mater 173:758-64. 2010
..The increase in percentage of adsorption with increase in temperature indicates that adsorption is endothermic in nature. The pseudo-second-order kinetics was followed in the adsorption process...
- Adsorption of Cu2+ on spherical Fe-MCM-41 and its application for oxidation of adamantane
K M Parida
Colloids and Material Chemistry Department, Institute of Minerals and Materials, Technology CSIR, Bhubaneswar 751013, Orissa, India
J Hazard Mater 179:642-9. 2010
..Fe-MCM-41(90)-Cu(59.6) was tested as a catalyst for oxidation of adamantane using hydrogen peroxide as the oxidant. The GC analyses revealed significant conversion of 32.5% and selectivity of 54% towards formation of 1-adamantanol...
- Enhanced photocatalytic and adsorptive degradation of organic dyes by mesoporous Cu/Al2O3-MCM-41: intra-particle mesoporosity, electron transfer and OH radical generation under visible light
Amaresh C Pradhan
Colloids and Material Chemistry Department, Institute of Minerals and Materials Technology CSIR, Bhubaneswar, 751013, Orissa, India
Dalton Trans 40:7348-56. 2011
..These characteristics are intra-particle mesoporosity, electron transfer and ˙OH radical generation under solar light...
- Surface characterization and catalytic evaluation of manganese nodule leached residue toward oxidation of benzene to phenol
K M Parida
Institute of Minerals and Materials Technology, Bhubaneswar 751013, Orissa, India
J Colloid Interface Sci 316:541-6. 2007
..WMNLR calcined at 400 degrees C showed the highest catalytic activity towards oxidation of benzene with 12.7% conversion and 98% selectivity...
- Studies on manganese-nodule leached residues; 1. Physicochemical characterization and its adsorption behavior toward Ni(2+) in aqueous system
K M Parida
Regional Research Laboratory, Bhubaneswar 751013, India
J Colloid Interface Sci 277:48-54. 2004
..The adsorption behavior of the washed sample toward Ni(2+) was recorded as a function of time, pH, temperature, and concentrations of adsorbent and adsorbate...
- Studies on manganese nodule leached residues 2. Adsorption of aqueous phosphate on manganese nodule leached residues
K M Parida
Regional Research Laboratory, Bhubaneswar 751013, India
J Colloid Interface Sci 290:22-7. 2005
..The magnitude of adsorption of phosphate in manganese nodule leached residues was compared with that in naturally occurring Mn nodule. Manganese nodule leached residues show better affinity toward phosphate adsorption...
- Studies on selenite adsorption using manganese nodule leached residues
S S Dash
Colloids and Materials Chemistry Group, Regional Research Laboratory, Bhubaneswar 751013, Orissa, India
J Colloid Interface Sci 307:333-9. 2007
..Adsorption followed second-order kinetics. The adsorption capacity of the material was found to be 54.6 mg g(-1) at 60 mg L(-1) of selenite concentration at pH 5 in 3 h contact time...
- Synthesis of mesoporous TiO(2-x)N(x) spheres by template free homogeneous co-precipitation method and their photo-catalytic activity under visible light illumination
K M Parida
Colloids and Materials Chemistry Department, Institute of Minerals and Materials Technology CSIR, Bhubaneswar 751 013, Orissa, India
J Colloid Interface Sci 333:269-76. 2009
..All the TiO(2-x)N(x) samples showed higher photo-catalytic activity than Degussa P(25) and undoped mesoporous titania. Sample containing around one atomic % nitrogen showed highest activity among the TiO(2-x)N(x) samples...
- Synthesis of multifunctional nanostructured zinc-iron mixed oxide photocatalyst by a simple solution-combustion technique
Gajendra Kumar Pradhan
Colloids and Materials Chemistry Department, Institute of Minerals and Materials Technology, CSIR, Bhubaneswar 751013, Odisha, India
ACS Appl Mater Interfaces 4:707-13. 2012
..The photocatalyst having zinc to iron ratio of 50:50 showed best photocatalytic activity among all the synthesized photocatalysts...
- Effect of heat treatment on the physico-chemical properties and catalytic activity of manganese nodules leached residue towards decomposition of hydrogen peroxide
K M Parida
EM and IC Department, Regional Research Laboratory, Bhubaneswar 751013, Orissa, India
J Colloid Interface Sci 290:431-6. 2005
..A suitable Mn(3+)Mn4+ couple favours H2O2 decomposition reaction. The activity has been correlated with various physico-chemical properties...
- Gold promoted S,N-doped TiO(2): an efficient catalyst for CO adsorption and oxidation
K M Parida
Colloids and Materials Chemistry Department, Institute of Minerals and Materials Technology CSIR, Bhubaneswar, Orissa, India
Environ Sci Technol 44:4155-60. 2010
..Higher catalytic activity of Au/S,N-TiO(2) compared to Au/TiO(2) was attributed to the presence of oxygen vacancy and creation of new adsorption sites at Au/TiO(2) interfaces for the adsorption and activation of O(2) molecules...
- Liquid phase esterification of acetic acid over WO3 promoted β-SiC in a solvent free system
Gopa Mishra
Advanced Materials Technology Department, CSIR Institute of Minerals and Materials Technology, Bhubaneswar 751013, Odisha, India
Dalton Trans 41:14299-308. 2012
..This is the first report on the effective utilization of β-SiC as a catalyst support for liquid phase esterification of acetic acid...
- Studies on Mg/Fe hydrotalcite-like-compound (HTlc) I. Removal of inorganic selenite (SeO3(2-)) from aqueous medium
J Das
Regional Research Laboratory (CSIR, Bhubaneswar, 751 013, India
J Colloid Interface Sci 251:26-32. 2002
..The negative value of DeltaH degrees indicates that the adsorption process is exothermic. The apparent equilibrium constants (K(a)) are also calculated and found to decrease with increase in temperature...
- Fascinating and challenging role of tungstate promoted vanadium phosphate towards solvent free esterification of oleic acid
Gobinda Chandra Behera
Colloids and Materials Chemistry Department, Institute of Minerals and Materials Technology CSIR, Bhubaneswar, 751 013, Orissa, India
Dalton Trans 41:1325-31. 2012
..This work extends the possibility of using VPO in other liquid phase reactions...
- Quick photo-Fenton degradation of phenolic compounds by Cu/Al2O3-MCM-41 under visible light irradiation: small particle size, stabilization of copper, easy reducibility of Cu and visible light active material
Amaresh C Pradhan
Colloids and Material Chemistry Department, Institute of Minerals and Materials Technology CSIR, Bhubaneswar 751013, Orissa, India
Dalton Trans 42:558-66. 2013
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- Highly active Pd nanoparticles dispersed on amine functionalized layered double hydroxide for Suzuki coupling reaction
Sudarshan Singha
C and MC Department, Institute of Minerals and Materials Technology, Bhubaneswar, 751013, Orissa, India
Dalton Trans 40:7130-2. 2011
..The synthesis of well dispersed palladium nanoparticles (1-5 nm) on diamine functionalized LDH is reported. The heterogeneous catalyst displayed unprecedented activity in Suzuki coupling reaction...
- A facile method for the synthesis of copper modified amine-functionalized mesoporous zirconia and its catalytic evaluation in C-S coupling reaction
Sujata Mallick
C and MC Department, Institute of Minerals and Materials Technology, Bhubaneswar, 751013, Orissa, India
Dalton Trans 40:9169-75. 2011
..This Cu-anchored mesoporous material acts as an efficient, reusable catalyst in the aryl-sulfur coupling reaction between aryl iodide and thiophenol for the synthesis of value added diarylsulfides...
