J. Kiruthika

University of Madras

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S. Karthikeyan

Jeonbuk National University

M. Arivanandhan

Anna University, Chennai

V. Karthik

Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology

Selvakumar Periyasamy

Adama Science and Technology University

Manimekalai Jambulingam

Taylor's University

S. Radha

University of Madras

M. Jambulingam

PSG INSTITUTE OF TECHNOLOGY AND APPLIED RESEARCH

J. Mani

University of Madras

Mu. Naushad

King Saud University

G. Anbalagan

Presidency University

Cooperative Institutions

University of Madras

Anna University, Chennai

Vellore Institute of Technology University

PSG INSTITUTE OF TECHNOLOGY AND APPLIED RESEARCH

Alagappa University

National Institute of Technology Tiruchirappalli

King Saud University

Glocal University

Riyadh Elm University

Tamil Nadu Agricultural University

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Adsorption of Cr(VI) from Aqueous Solution Using a Low Cost Activated Carbon Prepared from Pomegranate Peel

Nature Environment and Pollution Technology (2007)

Manimekalai Jambulingam N. Krishnaveni S. Karthikeyan J. Kiruthika

Studies on removal of Cr (VI) from aqueous solution using activated pomegranate peel carbon have been carried out at 32°C. Various parameters such as initial concentration of adsorbate, pH, adsorbent dosage and agitation time were studied by conducting batch mode experiments. The experimental adsorption data fitted reasonably well to Langmuir and Freundlich adsorption isotherms. The adsorption follows Lagergren first order kinetic model. The thermodynamic parameter enthalpy change (DH) suggests exothermic nature of adsorption of Cr(VI) on to activated pomegranate peel carbon.

Exothermic reaction

Carbon fibers

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Synergistic optimization of thermoelectric properties in Cu2NiSnSe4 composited with CuO nanoparticles

Physical Chemistry Chemical Physics (2024)

J. Mani S. Radha J. Kiruthika Ajith Kumar Lakshmanan M. Arivanandhan

CuO-incorporated Cu 2 NiSnSe 4 matrix successfully enhance phonon scattering at grain boundaries, which reduces thermal conductivity and thereby acheived a high figure of merit ( zT ).

10.1039/d4cp03061c

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Comparative and Equilibrium Studies on Anionic and Cationic Dyes Removal by Nano-Alumina-Doped Catechol Formaldehyde Composite

Journal of Chemistry (2020)

V. Karthik Selvakumar Periyasamy N. Sivarajasekar P. Megavarshini N. Brinda

Nano-alumina-doped catechol formaldehyde polymeric composite was prepared, characterized, and applied as an adsorbent for the removal of an anionic dye Congo red (CR) and a cationic dye SafraninO (SF), by adsorption process especially from aqueous solutions. Characterizations such as particle size distribution, zeta potential, BET, FTIR, and FESEM-EDAX were carried out for the adsorbent prepared. All experiments were conducted at the batch condition to study the effects of initial dye concentration (CR: 30–90 mg/L and SF: 10–50 mg/L), pH (2–11), temperature (25–55°C), and adsorbent dosage (0.05–0.3 g) on dye removal. The isotherm models (Langmuir, Freundlich, and Temkin) were analyzed for this adsorption work. The kinetic data obtained were analyzed by the pseudo-first-order, pseudo-second-order, Bangham, and Chien–Clayton equations. Dyes adsorption data were well fitted with the Freundlich isotherm equilibrium model and the pseudo-second-order kinetic model. Study results suggested that the nano-alumina-polymeric composite could be an effective adsorbent for anionic dye rather than cationic dye.

Cationic polymerization

Zeta potential

Catechol

Langmuir adsorption model

10.1155/2020/7617989

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Characteristic studies of some activated carbons from agricultural wastes

Journal of Scientific & Industrial Research (2007)

M. Jambulingam S. Karthikeyan P. Sivakumar J. Kiruthika T. Maiyalagan

shell have been explored for the preparation of activated carbon. Characterization studies such asbulk density, moisture, ash, fixed carbon, matter soluble in water, matter soluble in acid, pH, decolourising power, phenolnumber, ion exchange capacity , iron content and surface area have been carried out to assess the suitability of these carbons asabsorbents in water and wastewater. The results obtained show them to be good adsorbents for both or ganics and inorganics.Present study reveals the recovery of valuable adsorbents from readily and cheaply available agriculture wastes.

Carbon fibers

Cation-exchange capacity

Agricultural waste

Ion-exchange resin

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Citations (22)