Nitric Acid Concentration Research Articles

Role of ammonia in European air quality with changing land and ship emissions between 1990 and 2030

Abstract. The focus of this modeling study is on the role of ammonia in European air quality in the past as well as in the future. Ammonia emissions have not decreased as much as the other secondary inorganic aerosol (SIA) precursors – nitrogen oxides (NOx) and sulfur dioxide (SO2) – since the 1990s and are still posing problems for air quality and the environment. In this study, air quality simulations were performed with a regional chemical transport model at decadal intervals between 1990 and 2030 to understand the changes in the chemical species associated with SIA under varying land and ship emissions. We analyzed the changes in air concentrations of ammonia, nitric acid, ammonium, particulate nitrate and sulfate as well as changes in the dry and wet deposition of ammonia and ammonium. The results show that the approximately 40 % decrease in SIA concentrations between 1990 and 2010 was mainly due to reductions in NOx and SO2 emissions. The ammonia concentrations on the other hand decreased only near the high-emission areas such as the Netherlands and northern Italy by about 30 %, while there was a slight increase in other parts of Europe. Larger changes in concentrations occurred mostly during the first period (1990–2000). The model results indicate a transition period after 2000 for the composition of secondary inorganic aerosols due to a larger decrease in sulfate concentrations than nitrate. Changes between 2010 and 2030 – assuming the current legislation (CLE) scenario – are predicted to be smaller than those achieved earlier for all species analyzed in this study. The scenario simulations suggest that if ship emissions will be regulated more strictly in the future, SIA formation will decrease especially around the Benelux area, North Sea, Baltic Sea, English Channel and the Mediterranean region, leaving more ammonia in the gas phase, which would lead to an increase in dry deposition. In the north of the domain, the decrease in SIA would be mainly due to reduced formation of particulate nitrate, while the change around the Mediterranean would be caused mainly by decreased sulfate aerosol concentrations. One should also keep in mind that potentially higher temperatures in the future might increase the evaporation of ammonium nitrate to form its gaseous components NH3 and HNO3. Sensitivity tests with reduced NOx and NH3 emissions indicate a shift in the sensitivity of aerosol formation from NH3 towards NOx emissions between 1990 and 2030 in most of Europe except the eastern part of the model domain.

OBTAINING DERIVATIVES OF HUMIC SUBSTANCES FROM OXIDIZED COAL AND STUDY OF PHYSICO-CHEMICAL AND ADSORPTION PROPERTIES

In the work, a chemical analysis of humic substances based on oxidized coal of the Maikuben basin (Kazakhstan) is carried out. Humic acids were obtained on the basis of potassium humates by acidification with a 20% acid solution to pH = 3-4.5. The optimal conditions for obtaining nitrohumic acids from oxidized coals are: the duration of the process is 3 hours, the ratio of S:L = 1:5, the content of nitric acid is 64%, sulfuric acid is 96% and the composition of the nitrating mixture is 1:1 (g/g). Amminohumic derivatives were obtained in the presence of a 3% aqueous solution of ammonia using mechanical activation and ultrasonic treatment. The samples obtained were tested as an adsorbent for water purification from heavy metals. Humic acids and aminohumate showed the highest degrees of purification for zinc (99.0-100.0%) and cadmium (80.0-96.7%), and nitrohumic acid showed a high adsorption capacity for heavy metals like copper - 100.0 % and lead 82.9%. This is due to the fact that when interacting with heavy metals, humic acids and their derivatives (amino and nitro) form chelate complexes due to carboxyl, phenolic, nitro and amino groups. As a result of the study, the possibility of using them as non-toxic available sorbents for the purification of heavy metals in aqueous media has been shown.

Enrichment of the surface functional groups of activated carbon by modification method

The wastes formed from various industries' activities draw attention to their ability to be used as a natural adsorbent or as a source for activated carbon production. In this study, we aimed to produce activated carbon rich in surface functional groups from biomass. Surface functional groups of activated carbons (AC) were enriched by HNO3 oxidation. The activated carbons were synthesized with H3PO4 using peach stones (PSs), fruit juice industrial wastes, and can be found in abundance in the World and Turkey. The activated carbons' surface properties, such as BET surface area, micro-mesopore volume, and average pore diameter, were determined. The activated carbon with the highest surface area was produced with the impregnation ratio of 3/1 at 400 °C (3AC400) as 1399 m2/g. The microporous structures of the 3AC400 synthesized were determined to be more than the mesopore structures. The effects of acid modification on the surface of 3AC400, whose surface characterization was completed, were investigated using HNO3 at different concentrations (15, 30, 45, and 69% (v/v) HNO3). When the nitric acid concentration used in the modification was increased from 15% to 69%, the BET surface area of pure activated carbon (3AC400) decreased from 1399 m2/g to 15.44 m2/g. Besides, the micropores were wholly clogged, and the mesopore volume decreased from 0.127 cm3/g to 0.042 cm3/g. Vmic/Vtop of 3AC400 was reduced from 0.813 to 0.008. Modification using in this study was found to have a significant effect on the surface area of 3AC400. Nitric acid led micropores to collapse. So the structure of the surface of modified activated carbons has become more mesopores. The surface properties and surface functional group diversity of the synthesized modified activated carbons by various methods were investigated. With 69% nitric acid modification, the amount of carboxyl, lactone, and phenyl groups on the activated carbon surface was increased by 5.3, 9.75, and 9.00, respectively. The nitric acid modification affected the diversity of surface functional groups such as lactone> phenol> carboxyl. As the nitric acid concentration increased, the modified samples' total surface acidity increased, and IEP values shifted from 3.6 to the left. The total acidity value for the 69NAC/90/2 sample has increased approximately seven times that of the total acidity value of 3AC400.

Hydrophilic Sulfonated 2,9-Diamide-1,10-phenanthroline Endowed with a Highly Effective Ligand for Separation of Americium(III) from Europium(III): Extraction, Spectroscopy, and Density Functional Theory Calculations.

The design and development of a water-soluble heterocyclic ligand are believed to be an alternative way for improving the separation efficiency of actinides from lanthanides. Herein, we designed and synthesized a novel hydrophilic multidentate ligand: disulfonated N,N'-diphenyl-2,9-diamide-1,10-phenanthroline (DS-Ph-DAPhen) with soft and hard donor atoms, as a masking agent in aqueous solutions for Am(III) separation. The combination of N,N,N',N'-tetraoctyldiglycolamide in kerosene and DS-Ph-DAPhen in aqueous phases could separate Am(III) from Eu(III) across a range of nitric acid concentrations with very high selectivity. The coordination behaviors of Eu(III) with DS-Ph-DAPhen in aqueous solutions were studied by UV-vis titration, electrospray ionization mass spectrometry, and Fourier transform infrared spectra. The results indicated that Eu(III) ions could form both 1:1 and 1:2 complexes with the DS-Ph-DAPhen ligand in aqueous solution. Density functional theory calculation suggests that there are more covalent characters for Am-N bonds than that for Eu-N bonds in the complexes, which supports the better selectivity of the DS-Ph-DAPhen ligand toward Am(III) over Eu(III). This work demonstrates a feasible alternative approach to separating trivalent actinides from lanthanides with high selectivity.

Acid washing of incineration bottom ash of municipal solid waste: Effects of pH on removal and leaching of heavy metals

This study systematically investigated the acid washing of incineration bottom ash (IBA) of municipal solid waste, focusing on the removal and leaching of heavy metals (Pb, Zn, Cr, Cd, Cu, and Ni), as well as their pH-dependent behavior. A series of small-scale laboratory acid washing tests with different nitric acid concentrations and washing periods were conducted. The concentrations of metals in the washing water were measured to evaluate the metal removal efficiency. Then, one stage batch leaching test was conducted for washed IBA to evaluate the leaching reduction efficiency of washing. The results showed that the maximum metal removal efficiencies for Zn, Cu, and Ni (62–76%) were higher than those for Pb, Cr, and Cd (17–25%), which were reached at the highest acid addition for most of the metals. Increasing the washing period did not always increase the metal removal efficiency. The maximum leaching reduction efficiencies were higher for Zn, Cr, and Cu (93–98%) than those for Pb, Ni, and Cd (73–79%). Both washing and leaching processes showed a similar metal concentration-pH profile for each metal. For Pb, Zn, Cr, and Cd, the metal concentration-pH profile generally followed the metal hydroxide solubility versus pH curves. For Cu and Ni, the concentration of metal decreased with the increasing pH first and then kept at a stable concentration higher than the solubility of the hydroxide, indicating that Cu and Ni in the IBA washing water and leachates did not exist dominantly as their hydroxides.

Adsorption of Cadmium (II) onto Oxidized Activated Carbon Derived from Mahogany (Swietenia macrophylla King) Pericarp: Equilibrium, Thermodynamics, and Kinetics

The thermodynamics and kinetics of the adsorption of Cd(II) ions onto oxidized activated carbon derived from mahogany pericarp were studied. The activated carbon was prepared via initial carbonization and activation by phosphoric acid, followed by oxidization using different concentrations of nitric acid (HNO3; 2.5 M, 5.0 M, and 10.0 M). With increasing concentration of HNO3, the number of carboxylic acid groups increased while the number of phenolic groups decreased. Adsorption equilibrium studies revealed that the maximum adsorption capacity for Cd(II) increased with the increasing degree of oxidation of carbon material. The adsorption of Cd2+ ions onto the oxidized carbon was best described by the Freundlich model. Results of kinetic studies showed that the adsorption of Cd(II) ions onto the oxidized activated carbon is limited by film diffusion; for the unmodified carbon, Cd(II) adsorption was limited by intraparticle diffusion. The adsorption process onto the oxidized activated carbon materials was determined to be spontaneous, at the temperature range studied (25–50 °C).

Solid-Solution Effect on Grain Boundary Character Distribution and Corrosion Resistance of 304 Stainless Steel

In this study, we focus on the effect of solid-solution treatment on the susceptibility to intergranular corrosion and electrochemical corrosion of 304 stainless steel. The results show that with the solution temperature rises, the grain size of the steel increases and the intergranular corrosion tendency decreases. After corrosion, it exhibits a step microstructure and grooves at grain boundary on surface of the steel. The corrosion resistance of the steel can be improved by means of properly increasing the solution temperature and choosing a faster cooling way such as water quenching. Besides, with the nitric acid solution temperature rises, the corrosion current (Icorr) increases and the pitting corrosion potential decreases, in which pitting corrosion is more likely to happen. Moreover, in high concentration of nitric acid, a stability passive film can be formed on the surface of 304 stainless steel, which prevents the reaction of the anode, lowers the corrosion, and shows a better anti-corrosive ability.

Kinetics and mechanism of arsenopyrite leaching in nitric acid solutions in the presence of pyrite and Fe(III) ions

The main sulphide minerals that serve as gold carriers in low-grade raw materials are pyrite and arsenopyrite. Traditional methods of processing such refractory raw materials rely on high-pressure or pyrometallurgical oxidisation, which destroys the crystal lattice of sulphides and releases gold particles. An alternative method of oxidation is leaching with nitric acid. The study examined the kinetics and oxidation mechanism of the natural mineral arsenopyrite in nitric acid media, along with the effect of pyrite on the kinetic characteristics of dissolution. Using the shrinking core model (SCM), it was shown that during the first 5 min of the process, the kinetic of the reaction is controlled by the chemical reaction. Further in the course of the process, the mode changes, which is confirmed by the new shrinking core model. During the period from 5 to 60 min the model was fitted according to diffusion through a product layer and interfacial transfer. The addition of Fe(III) ions and an increase in the concentration of nitric acid have a similar effect on the nitric acid leaching of arsenopyrite, which is associated with an increase in the oxidation potential of the system. The influence of pyrite on the leaching of arsenopyrite is probably associated with its catalytic action in the early stage of the process, which is due to the role of an alternative surface for the reduction of nitrate ions in electrochemical contact with arsenopyrite. The difference in the mechanisms of arsenopyrite oxidation in the presence of Fe(III) ions and pyrite was confirmed by the SEM-EDX analysis.

Determination of alkali and alkaline earth elements in radioactive waste generated from reprocessing plant by liquid electrode plasma optical emission spectrometry

A simple, practical, and reliable analytical method with liquid electrode plasma optical emission spectrometry (LEP-OES) is developed for determination of Na, K, Ca, Sr, and Ba in radioactive waste. Appropriate emission lines for quantification and interferences from co-existing elements have been investigated. Nitric acid concentration in standards and analyte solution is adjusted to 0.80 mol/L because it affects the emission intensities. The spike and recovery tests using actual sample indicate that sample matrix effect is negligible for those measurements. The obtained data by LEP-OES has matched with data from ORIGEN code and inductively coupled plasma optical emission spectrometry within 10% difference. Consequently, the method is successfully applied to real radioactive wastes from reprocessing plant.

Actinide ion uptake from acidic radioactive feeds using an extraction chromatographic resin containing a branched dialkyl amide

A dialkyl amide with branched alkyl group, viz. N,N-di(2-ethylhexyl)-propionamide (D2EHPrA) was used as the organic extractant in an extraction chromatographic resin prepared for the first time and evaluated for the separation of uranium from acidic feeds. The distribution coefficient measurements, carried out at varying HNO3 concentrations, indicated an increase in the UO22+ ion sorption with increasing nitric acid concentration. The UO22+ ion sorption kinetics and sorption isotherms with this resin were investigated in details. The column studies indicated that 8.3 mg of uranium could be loaded on a 2.1 cm3 column bed volume containing 0.35 g resin. Batch distribution data for other actinides such as Np4+ and Pu4+ indicated that the resin can also be used for effective separation of these metal ions from acidic feeds. Though the resin showed effectiveness for Np and Pu, detailed investigations dealing with macro concentrations of metal ions (in gm quantities) were restricted to uranium only due to hazardous nature of plutonium and limited availability of neptunium. The encouraging results reported in this work is an indication of the possible application of this resin for the recovery or pre-concentration of UO22+, Np4+ and Pu4+ ions from large volumes of aqueous solutions of moderate acidity.

Dissolution kinetics of metallic zinc obtained from spent zinc‐carbon batteries in nitric acid solutions

AbstractIn this study, the dissolution kinetics of metallic zinc pieces obtained from waste zinc–carbon batteries was investigated using nitric acid solutions. The effects of the concentration of nitric acid, amount of metallic zinc, reaction temperature and stirring speed on the dissolution process were determined, and a mathematical model to represent the dissolution kinetics was presented. It was observed that the dissolution rate increased with increasing nitric acid concentration, stirring speed and reaction temperature and with decreasing amount of metallic zinc. While the concentration of nitric acid, reaction temperature, stirring speed, amount of zinc, and reaction time were 0.15 M, 30°C, 400 rpm, 0.1 g, and 20 min, respectively, the amount of dissolved zinc was found to be 98.3%. The result of the kinetic analysis showed that the dissolution rate fit to the pseudo‐first order kinetic. The activation energy for the dissolution process was calculated to be 12.89 kJ/mol. It was determined that the dissolution process was controlled by diffusion. Zinc ions in the resulting solution after the dissolution treatment was recovered by precipitation method using sodium bicarbonate solution. It was determined that zinc ions were precipitated as zinc hydroxy‐carbonate compound. Zinc compound obtained was subjected to the calcination treatment, and zinc oxide was produced.

Correlation complexation constants of Ce4+ and F−

Measured CeFn (n=1, 2, 3) complexation constant and solubility product constant of CeF4 and Na2CeF6 by ICP-AES and UV spectrophotometer, when Ce4+ and F− complexation reaction in water medium and nitric acid medium respectively, and the effects of Re3+and nitric acid concentration on Ce4+ and F− complexation reaction were studied. The experimental results show that the first-order complexation constant of Ce4+ and F− is CeF3 +=6.94*106, the second-order complexation constant is CeF2 2+=4.541*1011, and the third-order complexation constant is CeF3 +=6.232*1014. Compared with the complexation reaction of Ce4+ and F− in water medium and nitric acid medium, the complexation reaction of Ce4+ and F− in nitric acid medium is better. Re3+ appears, which affects the complexation reaction between Ce4+ and F−. When in nitric acid medium, the higher the concentration of nitric acid, the more unfavorable the complexation of Ce4+ and F−. The study of the relevant physical constants of Ce4+ and F− in this paper can be helpful for the separation of Ce4+ and F−, enrich the physical and chemical information of rare earth elements, and provide the basic theoretical basis for the rare earth fluoride that is difficult to be separated and recovered from the tailings, so as to reduce the harm to the soil environment.

Microwave-Assisted Extraction of Trace Metals from Sediments using Dilute Hydrogen Peroxide and Dilute Nitric Acid Prior to their Determination by Inductively Couple Plasma-Optical Emission Spectrometry

Background and Objectives: Contamination of aquatic sediments by trace metals is one of the global problems. This is because trace metals in sediments are persistent and nonbiodegradable. They may pose danger to flora and fauna since they can be released into freshwater systems. This study aimed at the development of microwave-assisted extraction using diluted hydrogen peroxide and nitric acid for extraction of trace elements from sediment samples prior to inductively coupled plasma optical emission spectrometry (ICP OES) determination. Methods: Response surface methodology (RSM) based on the Box-Behnken design was used for the optimization of factors affecting the microwave-assisted extraction process. The optimum conditions, for quantitative extraction of trace metals such as Cd2+, Cu2+, Cr2+, Pb2+ and Zn2+ were 16 min, 1.5 mol L-1 and 15% for extraction time, nitric acid concentration and H2O2 concentration, respectively. Results and Discussion: Under optimized conditions, the accuracy of the method was evaluated by analyzing loamy clay certified reference materials (CRM052) and the recoveries were above 92%, suggesting that the obtained results were in good agreement with the certified values. The developed method has shown reproducibility (RSD < 5%), as well as relative low limits of detection (0.02-0.09 μg g-1) and limit of quantitation (0.07-0.3 μg g-1). The developed analytical method was applied for extraction and the determination of trace metals in freshwater sediment samples. Conclusions: The method displayed advantages such as simplicity, rapidity, environmentally friendly and safe compared to classical methods that are based on concentrated acids.

Studies on the separation of Am(III) from trivalent lanthanides in high-level waste solution using modifier-free solvents and aqueous soluble bis-1,2,4-triazines

The selective partitioning of trivalent actinides (An(III)) from high-level liquid waste (HLLW) is considered as an essential step in the management of spent nuclear fuel. The i-SANEX process for the separation of An(III) from the co-existing lanthanides (Ln(III)) in 4 M nitric acid solution and simulated HLLW was studied using a couple of symmetrical diglycolamides (TODGA and TDDGA) and an unsymmetrical diglycolamide (D3DODGA) in n-dodecane as the extraction phase. The selective stripping of Am(III) from the loaded organic phase containing trivalent Ln(III) was investigated using aqueous soluble bis-1,2,4-triazine derivatives such as SO3-Ph-BTP, SO3-Ph-BTBP and SO3-Ph-BTPhen in dilute nitric acid solution. The results revealed that the SF of Eu(III) over Am(III) decreased with increase in the concentration of nitric acid in all cases and SF decreased in the order SO3-Ph-BTP > SO3-Ph-BTBP > SO3-Ph-BTPhen. The co-stripping of lighter lanthanides (La, Ce, Pr, Nd) was also observed during the recovery of Am(III).

Autocatalytic reaction mechanism of nitric acid and formic acid mixtures based on thermal and in situ Raman spectroscopic analyses

The oxidation of organic compounds with nitric acid has the potential to undergo a runaway hazardous reaction and explosion after the thermal–neutral induction period. The purpose of this study is to obtain a better understanding of the oxidation reaction mechanism to clarify the specific conditions under which the exothermic reaction occurs. In this study, the oxidation reactions of formic acid with nitric acid were investigated to represent a typical mixture of organic compound and nitric acid. From the results of thermal analysis, the overall reaction rate in a 15% nitric acid and 10% formic acid aqueous solution was formulated using an autocatalytic reaction model. The apparent activation energy was 75.2 kJ mol−1, and the pre-exponential factor was 7.87 × 108 s−1. The reaction rate increased with either nitric or formic acid concentrations, emphasizing that it is important to treat the mixture at lower concentrations for thermal safety. As a result of the thermal and in situ Raman spectroscopic analyses, it was found that the concentration of nitrous acid increased with the progress of the reaction as nitric acid and formic acid changed into NO2, N2O4, HCO(O)NO, HCO(O)NO2, and so on. The reaction mechanism started from nitrous acid and the oxidation of formic acid with nitric acid is an autocatalytic reaction involving this nitrous acid-initiated cycle.

Adsorption and separation behavior of palladium(II) on a silica-based hybrid donor adsorbent from simulated high-level liquid waste

Adsorption and separation performances of a microporous silica-based (DAMIA-EH + TOA)/SiO2-P adsorbent towards Pd(II) were systematically investigated under the effect of contact time, temperature, concentration of nitric acid, chromatography etc. in a simulated high-level liquid waste containing 14 kinds of representative co-existing metal ions. Successful recovery of around 97.95% Pd(II) was achieved under the elution with 0.01 M Tu (pH = 2) solution in column experiment.

Coupling Raman spectroscopy and DFT study for enhanced description of nitrosyl nitrato nitrite ruthenium(III) complexes in nitric acid

Dissolution of spent nuclear fuel in nitric acid forms diverse octahedral complexes of the ruthenium fission product with one nitrosyl and a variable number of nitrate, nitrite, hydroxide and water ligands. Some of these ruthenium complexes can trouble uranium and plutonium extractions by TBP and their purifications. In this study, we analyze the effect of gamma radiation on the structure of ruthenium(III) nitrosyl complexes in 5 M nitric acid solution and highlight the necessity to take into account the nitrato–nitrite complexes [RuNO(NO3)x(NO2)y(H2O)5−x−y]3−x−y. Accordingly, we performed a parametric study to analysis the influence of varying nitrous acid concentrations on ruthenium nitrosyl complexes in 1 M and 5 M nitric acid solutions. Raman spectra show that nitrites from nitrous acid replace nitrate ligands in ruthenium complexes. Resulting nitrite complexes were characterized by comparing the experimental Raman spectra to DFT calculations. This comparison supports a successive formation of mono-, cis- and potentially mer-ruthenium nitrite complexes with increasing nitrous acid concentrations. The degradation of such nitrite complexes has been followed by Raman measurements and the reverting to nitrate complexes occurs within several weeks. The radiolytic formation and the slow degradation shows a relevance of nitrite complexes to understand and hence control ruthenium in solvent extraction processes.

Acid strength dependent behaviour of Gd(III) ions in aqueous medium and its effect on Gd(III) separation from aqueous phase

Present paper deals with evaluation of thermodynamic parameters like apparent molal volume and compressibility, thermal expansion coefficient, hydration number, heat of dilution from density, sound velocity measurements and calorimetric studies of Gd(NO3)3 solutions in aqueous medium and in presence of nitric acid of different strength. Nature of complex formed by Gd ions in aqueous medium in presence of varying concentrations of nitric acid, as revealed by changes in the thermodynamic parameters and its extraction profile, is also highlighted.

Extraction behaviors of platinum group metals in simulated high-level liquid waste by a hydrophobic ionic liquid bearing an amino moiety

A hydrophobic ionic liquid including an amino moiety ([DiOcAPmim][NTf2]) was synthesized. Its extraction behaviors towards Pd(II), Ru(III), Rh(III) were investigated in nitric acid aqueous solution as a function of contact time, effect of concentration of nitric acid, effect of temperature, and effect of co-existing metal ions. The extraction kinetics of Pd(II) was fairly fast and extraction equilibrium can be attained within only 5 min under the [HNO3] = 2.05 M. When [HNO3]< 1 M, the extraction percentage of Pd(II), Ru(III), Rh(III) were all above 80%. When [HNO3] reached 2 M, all of the extraction percentage decreased and in an order of Pd(II)>Ru(III)>Rh(III). When [HNO3]> 2 M, the extraction performance gradually recovered. The effect of temperature can slightly affect the extraction performance of Pd(II). Furthermore, in simulated high-level liquid waste, [DiOcAPmim][NTf2] showed a better preference towards Pd(II) under the interference of various other co-existing metal ions.

Isolation and characterization of microcrystalline cellulose extracted from banana fiber in poly(lactic acid) biocomposite produced from solvent casting technique

The purpose of this project is to extract Microcrystalline Cellulose (MCC) from Banana fiber to produce Poly(Lactic Acid)/Microcrystalline Cellulose, (PLA/MCC) biocomposite film using a solvent casting technique. The initial phase is the production of MCC from Banana fiber by involving three steps; alkaline treatment, bleaching and acid hydrolysis. MCC produced from the different concentration of Nitric acid in the acid hydrolysis process, were used to analyze the morphological and crystalline properties using SEM and XRD respectively. MCC produced from the higher concentration of Nitric acid shows good morphological properties and higher % crystallinity. Then, MCC compounded into PLA with different filler loading to produce PLA/MCC biocomposite film using a different solvent which is Chloroform and Dichloromethane. Results show that lower MCC loading, induces good filler matrix interaction and this evidences by the improvement of the Tensile strength and Young’s Modulus, as well as shows improvement in loss factor and storage modulus which studied from DMA. Moreover, the addition of MCC slightly improved the thermal stability of PLA. From using a different solvent to produce PLA/MCC biocomposite film, Dichloromethane solvent improves the tensile strength and Young’s modulus of biocomposite film, while Chloroform reduces the tensile properties of biocomposite film.