Adsorptive interaction of ortho-phenylenediamine with commercial activated carbon in presence of Indole and vice versa: synergistic/antagonistic evaluation

Rathi, Neha; Kushwaha, Jai Prakash; Singh, Neetu; Toor, Sehaspreet Kaur; Rajani, Nikhil; Kumawat, Piyush Kumar

doi:10.1007/s10668-020-00668-3

Cited by 2 publications

(1 citation statement)

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“…Recently, the residues of the antibiotic pollutants have been detected in a variety of aqueous systems, particularly in industrial effluent, drinking water, ground water, surface water and domestic influent and effluent (Thai et al, 2018). Undoubtedly, the existence of antibiotic‐resistant bacteria and antibiotic‐resistant genes in aquatic system is the key concern due to their ecotoxicity (Rathi et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Adsorptive decontamination of doxycycline hydrochloride via Prosopis juliflora activated carbon: Parameter optimization and disposal study

Kaur

Singh

Rajor

2022

Water Environment Research

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This study deals with the removal of doxycycline hydrochloride (DOX) antibiotic, from aqueous environment by using Prosopis juliflora activated carbon (PJAC). PJAC was synthesized by chemical activation and pyrolysis of Prosopis juliflora. It was characterized by employing Fourier transform infrared spectroscopy (FTIR), scanning electron microscope‐energy dispersive X‐ray analysis (SEM–EDX), X‐ray diffraction analysis (XRD), and Brunauer–Emmett–Teller (BET) techniques. The specific surface area, pore volume, and pore diameter were evaluated as 320.45 m2/g, 0.176 cm3/g, and 2.65 nm, respectively. Different functional groups (O–H, C–O, C=C, C–N, and C–C) present on PJAC promoted the adsorption of DOX. The influence of various adsorption parameters suggested by central composite design (CCD) model was determined using response surface methodology (RSM), and interactive effects of these were optimized. The thermodynamic and kinetic studies performed at optimized conditions, exhibited that adsorption was spontaneous and endothermic. The experimental data were well described with Langmuir, Redlich–Peterson, and Freundlich isotherm models while kinetics data were well described by pseudo second order. The excellent interactions between the PJAC and DOX resulted maximum adsorption capacity as 57.11 mg/g. The adsorption mechanisms was dominated by normalπ‐ normalπ interactions and hydrogen bonding. Moreover, almost complete encapsulation of DOX was achieved by stabilization of exhausted PJAC. Practitioner Points A wild harmful plant Prosopis juliflora was used to synthesize a low‐cost and eco‐friendly bio‐sorbent PJAC. Adsorptive ability of PJAC was quantified for adsorption of DOX antibiotic from its aqueous solution. DOX uptake on PJAC was mainly governed by л‐л EDA interactions and hydrogen bonding.

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Section: Introductionmentioning

confidence: 99%