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- 저자 : P. Maharaja (검색결과 2 건)
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E. Gomathi,P. Maharaja,Hanumant Singh Rathore,R. Boopathy,Rames C. Panda,T. Senthilvelan,Maruthapillai Arthanareeswari 한국탄소학회 2023 Carbon Letters Vol.33 No.7
The dyeing process is a very important unit operation in the leather and textile industries; it produces significant amounts of waste effluent containing dyes and poses a substantial threat to the environment. Therefore, degradation of the industrial dye-waste liquid is necessary before its release into the environment. The current is focusing on the reduction of pollutant loads in industrial wastewater through remediating azo and thiazine dyes (synthetic solutions of textile dye consortium). The current research work is focused on the degradation of dye consortium through photo-electro-Fenton (PEF) processes via using dimensionally stable anode (Ti) and graphite cathode. The ideal conditions, which included a pH of 3, 0.1 (g/L) of textile dye consortium, 0.03 (g/L) of iron, 0.2 (g/L) of H2O2, and a 0.3 mAcm-2 of current density, were achieved to the removal of dye consortium over 40 min. The highest dye removal rate was discovered to be 96%. The transition of azo linkages into N2 or NH3 was confirmed by Fourier transforms infra-red spectroscopic analysis. PEF process reduced the 92% of chemical oxygen demand (COD) of textile dye consortium solution, and it meets the kinetics study of the pseudo-first-order. The degradation of dye through the PEF process was evaluated by using the cyclic voltammetric method. The toxicity tests showed that with the treated dye solution, seedlings grew well.
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Three dimensional electro catalytic oxidation of aniline by boron doped mesoporous activated carbon
S. Karthikeyan,K. Viswanathan,R. Boopathy,P. Maharaja,G. Sekaran 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1
In this report, boron doped mesoporous activated carbon (B-MAC) was synthesized by directhydrothermal route. The prepared B-MAC was characterized for HR-TEM, wide-angle XRD, SEM, XPS,FTIR and N2 sorption analyses. The results suggested that the B-MAC is mesoporous in structure andamorphous in nature, with surface area of 3.036 m2 g 1. The B-MAC was chosen as a catalyst for theelectrochemical oxidation of synthetic aniline solution. For the oxidations process, graphite rod waschosen as anode; SS 316 was chosen as cathode in the electrochemical catalytic oxidation process. Theelectro chemical oxidation of aqueous aniline solution was confirmed through UV–visible spectroscopy,Florescence emission spectrum and cyclic voltammetry analyses. The results revealed that, the removalefficiency of COD and aniline by B-MAC was found to be 76–80% and 80–85%, respectively, in electrocatalytic oxidation. MAC fluidized electro catalytic oxidation system removed COD by 40–45% andaniline by 50–62%, respectively. Thus, the B-MAC catalyst was found to be viable for the electrochemicaltreatment of aniline containing waste water.
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