Kinetics, mechanism, and thermodynamics of lanthanum adsorption on pectin extracted from durian rind

Kusrini, Eny; Wicaksono, Winarno; Gunawan, Cindy; Daud, Nur Zafirah A.; Usman, Anwar

doi:10.1016/j.jece.2018.10.018

Cited by 66 publications

(20 citation statements)

References 28 publications

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“…There is thus an urgent need to replace non-renewable energy sources with renewable ones. Biomass is one of the most potent renewable energy sources, with its development having now led to the third generation of biofuel (Purwanto et al, 2015;Supramono et al, 2015;Jamilatun et al, 2017a;Kusrini et al, 2018a).…”

Section: Introductionmentioning

confidence: 99%

Effect of Grain Size, Temperature and Catalyst Amount on Pyrolysis Products of Spirulina Platensis Residue (SPR)

Jamilatun¹,

Budhijanto²,

Rochmadi³

et al. 2019

IJTech

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Spirulina platensis microalgae is one of the feedstocks used in the production of the third generation of biofuel. The extraction of its lipid for biodiesel leaves behind a residue, which can be treated by pyrolysis to create certain other value-added products. This paper discusses the effects of Spirulina platensis residue (SPR) with respect to grain size (0.105, 0.149 and 0.177 mm), temperature (300 to 600°C) and amount of catalyst (0, 10, 20 and 40 wt.%) on the characteristics of products (bio-oil, water phase, char and gas) obtained from pyrolysis in a fixedbed reactor. The results of the study show that the higher the pyrolysis temperature, the higher the conversion. For the bio-oil product, the optimum temperature is 500°C, which produces a peak yield of 35.99 wt.%. The larger the grain size, the lower the bio-oil yield, gas water and gas, for all of the tested temperatures (300-600°C). The amount of catalyst and the pyrolysis temperature greatly influence the quality of bio-oil products, grouping them into the fractions of LPG (C ≤ 4), gasoline (C5-C11), biodiesel (C12-C18) and heavy naphtha (C ≥ 19). The tendency for LPG-Gasoline formation at optimum conditions, considering the use of a 10 wt.% catalyst at a temperature of 400-500°C, was reported.

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Section: Introductionmentioning

confidence: 99%

Effect of Grain Size, Temperature and Catalyst Amount on Pyrolysis Products of Spirulina Platensis Residue (SPR)

Jamilatun¹,

Budhijanto²,

Rochmadi³

et al. 2019

IJTech

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“…The absorption bands below 1800 cm -1 provide the possibility of specific carbohydrate recognition (Wandee et al, 2019). The significant absorption band at around 1696-1795 cm -1 detects the carbonyl (C=O) absorption of the esterified (methylated) carboxyl groups, signifying the pectin functional group (Kusrini et al, 2018a;Kusrini et al, 2018b). The bands at 1650-1618 cm -1 and 1467-1425 cm -1 were denoted as the asymmetric and symmetric stretching modes of the carboxylate group, respectively.…”

Section: Fourier-transform Infrared (Ftir) Spectroscopymentioning

confidence: 99%

“…It is noteworthy to highlight that the application of pectin extracted from CM white pith as an innovative raw material for use in adsorbents (Kusrini et al, 2018a;Kusrini et al, 2018b), thin films (Bátori et al, 2017), environmentally friendly agents (Situmeang, 2019), and green corrosion inhibitors (Pradityana et al, 2017) is currently being pursued in our laboratory.…”

Section: Fourier-transform Infrared (Ftir) Spectroscopymentioning

confidence: 99%

pH-Dependent Yield and Physicochemical Properties of Pectin Isolated from Citrus Maxima

Daud

Said

Ja’afar

et al. 2019

IJTech

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Citrus maxima white pith was utilized for the isolation of pectin under acidified condition using L-(+)-tartaric acid, at extraction pH in the range of 1.0 and 2.0. The extraction yield and physicochemical properties (ash content, equivalent weight, methoxy content, anhydrouronic acid, degree of esterification) of the isolated pectin was investigated. The highest yield (70.2%) obtained in this extraction was at pH 1.0, 60°C, 120 minutes. The optimized condition of the isolated pectin in this study was based on the yield and physicochemical properties, where pectin extracted at pH 2.0 and 6080°C for 60120 minutes resulted in a 59.6% yield, with low ash content (2.82%), highest equivalent weight (1098.8) for gelling effect and highest DE (39.2%). The findings are within the range for a good quality pectin. The FTIR spectra of the isolated pectin at different pH mediums, but at constant temperature of 70°C and extraction time of 60 minutes were compared. The presence of methyl esterified carboxyl (1696 cm-1) and carboxylate group confirms the presence of pectin. This isolated pectin as an innovative raw material is potentially applicable for adsorbents, thin films, environmentally-friendly agents and green corrosion inhibitors.

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“…Durian husk has been reported to be used in the treatment of several organic and inorganic pollutants due to its lignocellulosic properties . For instance, durian waste was applied in the treatment of Cr(VI) in synthetic wastewater , La(III) aqueous solution, removal of methylene blue from simulated textile industrial effluent, Ni(II) and Cr(VI) adsorption from wastewater, etc. Physical and chemical activation of biomass such as durian husk is essential in order to improve sorbate removal from contaminated water .…”

Section: Introductionmentioning

confidence: 99%

Optimization and activation of renewable durian husk for biosorption of lead (II) from an aqueous medium

Ngabura

Hussain

Ghani

et al. 2019

J of Chemical Tech & Biotech

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Background Biosorption of lead Pb(II) by durian husk activated carbon (DHAC) was investigated. The main aim of this work is to explore the effect of operating variables such as pH, biosorbent dose, temperature, initial metal ion concentration and contact time on the removal of Pb(II) from synthesized aqueous medium using a response surface methodology (RSM) technique. The experimentation was performed in two sets, namely set 1 and set 2. Results For experimental set 1, pH was set to 7.0. The optimum conditions for the remaining parameters were determined to be 0.39 g DHAC dose, 60 min contact time and 100 mg L−1 of initial metal ion concentration, which yielded maximum biosorption capacity of 14.6 mg g−1. For experimental set 2, 41.27 °C, 8.95 and 99.96 mg L−1 were the optimum conditions determined for temperature, pH and initial Pb(II) concentration, respectively; which revealed a maximum adsorption capacity of 9.67 mg g−1. Characterization of the adsorbent revealed active functional groups such as hydroxyl, carboxylic, alcohol and hemicellulose. The equilibrium adsorption data obeyed the Langmuir isotherm and pseudo‐second‐order kinetic models with maximum Langmuir uptake of 36.1 mg g−1. Conclusions The biosorbent was capable of reuse, so that the abundant durian husk could be utilized effectively for the removal of Pb(II) from polluted water. © 2018 Society of Chemical Industry

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Kinetics, mechanism, and thermodynamics of lanthanum adsorption on pectin extracted from durian rind

Cited by 66 publications

References 28 publications

Effect of Grain Size, Temperature and Catalyst Amount on Pyrolysis Products of Spirulina Platensis Residue (SPR)

Effect of Grain Size, Temperature and Catalyst Amount on Pyrolysis Products of Spirulina Platensis Residue (SPR)

pH-Dependent Yield and Physicochemical Properties of Pectin Isolated from Citrus Maxima

Optimization and activation of renewable durian husk for biosorption of lead (II) from an aqueous medium

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