Isotherm Models of Heavy Metal Sorption onto Zinc-tricarboxylic

Kowsura, C.; Pangkumhang, Bhuckchanya; Jutaporn, Panitan; Tanboonchuy, Visanu

doi:10.18178/ijcea.2017.8.3.652

Cited by 4 publications

(3 citation statements)

References 20 publications

(24 reference statements)

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“…While in the case of Pb, high removal efficiency of 90.13% was attained within 60 min. This finding is in good agreement with the result obtained by Kowsura et al (2017) on Pb removal from water using Zn 3 (BTC) 2 . Liu et al (2007) reported chromium removal with zero-valent iron decorant on a graphene nanosheet by using 1 g adsorbent dosage within 90 min has a removal efficiency of 70%.…”

Section: Effect Of Adsorbent Dosagesupporting

confidence: 92%

High Performance Copper Based Metal Organic Framework for Removal of Heavy Metals From Wastewater

et al. 2022

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The biggest challenge of this century is the generation of wastewater which is released to the environment due to industrial expansion. Industrial development has caused the release of various pollutants including heavy metals such as Cd, Pb, and Cr into the environment. In this study, copper diphenylamine metal-organic framework (Cu-DPA MOF) has been synthesized via hydrothermal method and its adsorption capacity toward the removal of heavy metals from wastewater was examined. The removal efficiency of heavy metals by Cu-DPA MOF was tested at optimized adsorption parameters such as optimal adsorbent dosage, pH, initial metals concentration, and adsorption time. The heavy metals concentration in the wastewater before treated with the as-synthesized MOF was determined to be 0.3027, 0.0098, and 0.1021 mg/L for Cr, Cd, and Pb, respectively. The corresponding concentrations of heavy metals in wastewater were reduced to 0.0015, 0.00024, and 0.00016 mg/L when treated with the as-synthesized MOF. As a result, a maximum removal efficiency of 97.6%, 99.5%, and 99.5% was achieved for Cd, Cr, and Pb metals, respectively. This is possibly due to the high porous nature and huge surface area of the as-synthesized MOF. The adsorption data were best fitted with Freundlich isotherm throughout this study. The study sheds light on the design of adsorbents with high removal efficiency of pollutants found in the environment.

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Section: Effect Of Adsorbent Dosagesupporting

confidence: 92%

High Performance Copper Based Metal Organic Framework for Removal of Heavy Metals From Wastewater

et al. 2022

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“…6 ). Pb 2+ had a high removal efficiency of 90.13% at 60 min, matching the findings of Kowsura et al [ 76 ]. Cadmium (II) adsorption by Co-DPA has maximum removal efficiency of 92.85% which is the same as the result obtained by [ 74 ] with a maximum adsorption capacity of 33 mg/g at 80 min.…”

Section: Resultssupporting

confidence: 89%

Adsorptive removal of heavy metals from wastewater using Cobalt-diphenylamine (Co-DPA) complex

Yimer,

Ansari,

Berehe

et al. 2024

BMC Chemistry

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Heavy metals like Cadmium, Lead, and Chromium are the pollutants emitted into the environment through industrial development. In this work, a new diphenylamine coordinated cobalt complex (Co-DPA) has been synthesized and tested for its efficiency in removing heavy metals from wastewater, and its adsorption capacity was investigated. The effectiveness of heavy metals removal by Co-DPA was evaluated by adjusting the adsorption parameters, such as adsorbent dose, pH, initial metals concentration, and adsorption period. Heavy metal concentrations in real sample were 0.267, 0.075, and 0.125 mg/L for Cd2+, Pb2+, and Cr3+ before using as-synthesized Co-DPA to treat wastewater. After being treated with synthesized Co-DPA the concentration of heavy metals was reduced to 0.0129, 0.00028, 0.00054 mg/L for Cd2+, Pb2+, and Cr3+, respectively, in 80 min. The removal efficiency was 95.6%, 99.5%, and 99.5% for the respective metals. The adsorption process fitted satisfactorily with Freundlich isotherm with R2(0.999, 0.997, 0.995) for Cd2+, Pb2+, and Cr3+, respectively. The kinetic data obeyed the pseudo-second order for Cd2+ and Cr2+ and the pseudo-first order for Pb2+. Based on the results obtained within the framework of this study, it is concluded that the as-synthesized Co-DPA is a good adsorbent to eliminate heavy metal ions like Cd2+, Pb2+, and Cr3+from wastewater solution. In general, Co-DPA is a promising new material for the removal of heavy metal ions from water. Graphical Abstract

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“…Massively used compounds made by chemically like metal–organic network (MON) are thus made up of alloy ions/metallic ions and organic linkers. With the aid of the hydrothermal method, new MONs composed of zinc considered metal ions and benzene -dicarboxylic acid as the organic linker 3 . Biography of MONs is their superficial alteration and as well as their particle control six division 4 .…”

Section: Introductionmentioning

confidence: 99%

Mathematical analysis and molecular descriptors of two novel metal–organic models with chemical applications

Zaman¹,

Jalani²,

Ullah

et al. 2023

Sci Rep

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Metal–Organic Networks (MONs) are made by chemical molecules that contain metal ions and organic ligands. A crystalline porous solid called Metal–Organic Networks (MONs) is made up of a $$3D$$ 3 D metal network of ions held in place by a multidentate ligand. (MONs) can be used for gas storage, purification drug delivery, gas separation, catalysis, and sensing applications. There is enormous potential for effective integration and research of MONs in diverse applications. Molecular descriptors are arithmetic measures that reveal a chemical substance's physical and chemical characteristics in its foundational network in a natural relationship. They demonstrate an important role in theoretical and ecological chemistry, and in the field of medicine. In this research, we calculated various recently discovered molecular descriptors viz. the modified version of second zagreb index, harmonic index, reciprocal randic index, modified version of forgotten topological index, redefined first zagreb topological index, redefined second zagreb topological index and redefined third zagreb topological index for two separate metal–organic networks. The numerical and graphical comparative analysis of these considered molecular descriptors are also performed.

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Isotherm Models of Heavy Metal Sorption onto Zinc-tricarboxylic

Abstract: Abstract

Cited by 4 publications

References 20 publications

High Performance Copper Based Metal Organic Framework for Removal of Heavy Metals From Wastewater

High Performance Copper Based Metal Organic Framework for Removal of Heavy Metals From Wastewater

Adsorptive removal of heavy metals from wastewater using Cobalt-diphenylamine (Co-DPA) complex

Mathematical analysis and molecular descriptors of two novel metal–organic models with chemical applications

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