Transforming structure of dolomite to enhance its ion-exchange capacity for copper(II)

Cao, Zhanfang; Chen, Pei; Yang, Fan; Wang, Shuai

doi:10.1016/j.colsurfa.2017.12.032

Cited by 17 publications

(8 citation statements)

References 35 publications

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“…The adsorption capacity and efficiency for manganese metal increased markedly at 30 minutes. (Cao et al, 2018) revealed that the adsorption equilibrium of copper ions using dolomite was reached in 30 minutes. Meanwhile, for copper metal, the adsorption capacity and efficiency increased sharply in the first 15 minutes due to the presence of large numbers of active sites on the adsorbent surface, which were still free and had not been accommodated by copper metal ions (Martini et al, 2018).…”

Section: Effect Of Contact Time On the Adsorption Capacity (Q T ) And...mentioning

confidence: 99%

EFFECTIVITY OF DOLOMITE ADSORBENT IN PURIFICATION OF Mn AND Cu FROM ACID MINE DRAINAGE

Akhyar,

Hesti Meilina,

Fauzi Djuned

et al. 2023

IJSET

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The mining industry raises many environmental problems in the ecosystem, one of which is the emergence of acid mine drainage. Because of this issue, this study was conducted to see the performance of dolomite adsorbents in purifying acid mine drainage at iron ore mining in Aceh Besar, Indonesia. The adsorption of Cu2+ metal ions using dolomite adsorbents has the best equilibrium result at a contact time of 15 minutes, the efficiency at equilibrium reaches 92.97%, and the absorption capacity reaches 9.07 mg/g at an initial measured concentration of 19.5 mg/L with an adsorbent weight of 0.2 gr. On the other hand, Mn2+ has the best equilibrium in 30 minutes with an efficiency of 95.17% and an adsorption capacity of 0.92 mg/g at a measured concentration of 5.8 mg/L and an adsorbent weight of 0.6 gr. The obtained kinetic model is a pseudo second order.

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Section: Effect Of Contact Time On the Adsorption Capacity (Q T ) And...mentioning

confidence: 99%

EFFECTIVITY OF DOLOMITE ADSORBENT IN PURIFICATION OF Mn AND Cu FROM ACID MINE DRAINAGE

Akhyar,

Hesti Meilina,

Fauzi Djuned

et al. 2023

IJSET

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“…Dolomite is one of the most abundant carbonate rocks after calcite. Dolomite is widely spread in nature and can be found in Nigeria, Canada, Malaysia, and many other countries [ 10 , 43 , 44 ]. In Malaysia, dolomite can be found abundantly in the states of Perlis and Perak.…”

Section: Fillermentioning

confidence: 99%

“…Wastewater treatment For copper ion adsorption [43] Membrane application As low-cost membranes or substrates [62] Plastics As a filler to improve the mechanical properties [12,13] Pharmaceutical As a supplementary source of calcium and magnesium [63] As an osmotic oral laxative [63]…”

Section: Field Purposementioning

confidence: 99%

On the Use of Dolomite as a Mineral Filler and Co-Filler in the Field of Polymer Composites: A Review

et al. 2022

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Polymers are being used in many applications all around the world. However, there are some drawbacks in the properties of polymers that could hamper their usage in certain applications. Therefore, a new material polymer composite was introduced. A polymer composite is a polymer-based material with the addition of a filler. Many researchers have reported the improvement in the properties of a polymer when a filler was introduced. This helps minimize the disadvantages of using a polymer. As a result, polymer composite products can be used in many industries, such as automobile, aerospace, biomedical, and packaging. Fillers derived from natural minerals, such as dolomite, are among the best reinforcement materials for polymeric materials because they are plentiful and low cost, have high rigidity and hardness, and even have tailorable surface chemistry. The use of dolomite as a filler in a polymer composite system has gained increasing attention in recent years after researchers successfully proved that it is capable of improving the mechanical, physical, and thermal properties of various polymeric materials. However, chemical or physical treatment/modification of raw dolomite is needed in order to prepare it as an efficient reinforcing filler. This procedure helps to improve the performance of the resultant polymer composites. This article reviews the usage of dolomite as a filler in a variety of polymeric materials and how it improved the performance of the polymer composite materials. It also highlights several methods that have been used for the purpose dolomite’s treatment/modification. Furthermore, the role of dolomite as a co-filler or a hybrid filler in a polymer composite system is also discussed, revealing the great potential and prospect of this mineral filler in the field of polymer composites for advanced applications.

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“…Pengaruh nyata interaksi ameliorasi dolomit dan LTB pada KTK (Tabel 3) berkaitan dengan reaksi pertukaran H + dan Al 3+ dari kompleks jerapan. Dilaporkan bahwa Ca 2+ dan Mg 2+ dalam material berpori, seperti lignit, dapat meningkatkan kapasitas pertukaran dan efisiensi adsorpsi Cu 2+ , seperti dolomit (Cao et al 2018). Peningkatan KTK akibat ameliorasi adsorbent organik, seperti lignit teraktivasi, juga terjadi melalui mekanisme deprotonasi gugus fungsional karboksil-dan fenol-OH pada bahan humik yang dikandungnya (Adani et al 1998).…”

Section: Sifat Kimia Tanahunclassified

Spesiasi Aluminium Terlarut dan Sifat Kimia Ultisol yang Diameliorasi dengan Dolomit dan Lignit-Teraktivasi

Rahman

Nugroho

Sutandi

et al. 2020

J. Ilmu. Pertan. Indones.

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Phytotoxicity of soil aluminum (Al), both directly to the plant growth as well as indirectly through the increase of soil potential acidity, is closely related to the occurrence of various soil soluble-Al species. Amongst them, Al3+ and monomeric-Al species are the primary causes of Al phytotoxicity in soils with high Al content. This study was aimed to evaluate the effects of soil amelioration with dolomite and base-activated lignite (BAL) on changes in soluble-Al species and other soil chemical properties, and vegetative growth of soybean (Glycine max Merr) on Ultisol of Jasinga (Al-dd 16,03 cmol(+)/kg). A green house experiment was conducted by applying a Completely Randomized Design with dolomite and BAL amelioration as the treatments, each with three levels of repectively 0, 1, 1,5 x exchangeable-Al and 0, 2,5, 5 tons BAL ha-1, and three replications. The ameliorants were incubated at field capacity of soil moisture content for one week before planting soybean for one month. Soil soluble-Al speciation was carried out using colorimetric aluminon method to determine concentrations of total soluble-Al, monomeric-Al, and polymeric-Al species. Monomeric-Al were further speciated into inorganic monomeric-Al and organic monomeric-Al species. The results revealed that only dolomite amelioration that significantly increased soil pH-H2O, pH-KCl, Ca- dd, Na-dd, and decreased exchangeable-Al concentration, except for those of all soluble-Al species that only showed a decreasing trend. Soil exchangeable-Al that was negatively and significantly correlated with soybean measure parameters were plant height, root length, total roots and shoots wet and dry weights, as well as Ca concentration. These results indicated that soil Al phytotoxicity evaluation could be relied on the result of routine analysis on soil exchangeable-Al concentration. Keywords: exchangeable-Al, inorganic monomeric-Al, organic monomeric-Al, polymeric-Al

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Transforming structure of dolomite to enhance its ion-exchange capacity for copper(II)

Cited by 17 publications

References 35 publications

EFFECTIVITY OF DOLOMITE ADSORBENT IN PURIFICATION OF Mn AND Cu FROM ACID MINE DRAINAGE

EFFECTIVITY OF DOLOMITE ADSORBENT IN PURIFICATION OF Mn AND Cu FROM ACID MINE DRAINAGE

On the Use of Dolomite as a Mineral Filler and Co-Filler in the Field of Polymer Composites: A Review

Spesiasi Aluminium Terlarut dan Sifat Kimia Ultisol yang Diameliorasi dengan Dolomit dan Lignit-Teraktivasi

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