Zeolites as Adsorbent Materials for Decolorization of Crude Terpineol

Indarto, Antonius; Putra, I. A.; Riyano,; Noersalim, S.; Hartanto, Yansen; Handojo, Lienda

doi:10.1088/1757-899x/599/1/012021

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…Regeneration and treatment of large volumes of wastewater without producing harmful residues are the most advantageous features of the adsorption process (9). Several adsorbents have been reported in the past few decades e.g., zeolites (10), silica gel (11), activated alumina (12), graphene oxide(GO) (13), bentonite clay (14), activated carbon (15), etc. In the last few decades, activated carbon has received a lot of attention among researchers because of its high efficiency in removing a wide range of pollutants.…”

Section: Introductionmentioning

confidence: 99%

Study of the Removal of Basic Blue-41 from Simulated Wastewater By Activated Carbon Prepared from Discarded Jute Fibre

et al. 2022

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In this work, we reported a facile hydrothermal process to fabricate activated carbon (AC) from waste jute fibre. Sequential chemical and thermal activation have been introduced to form a highly functionalized and porous structure. The prepared AC was characterized by Field Emission Scanning Electron Microscopy (FESEM), X-ray Powder Diffraction (XRD), and Raman Spectroscopy. A hierarchical porous 3D cage-like microstructure was observed from FESEM. Non-linear highly disordered structure and low crystallinity were confirmed by XRD and Raman Spectroscopy. The synthesized AC was then used for batch adsorption study for the removal of an industrial toxic dye, basic blue 41 (BB41). The dependence of the adsorption process on different factors e.g., pH, contact time, and initial concentration has been investigated to find the optimum process conditions. At pH 8, maximum removal of 90 % was achieved. The adsorption was rapid for the first 30 minutes and reaches equilibrium at 70 minutes. Adsorption kinetics were interpreted by pseudo 1st and 2nd order kinetics, and it was best demonstrated by the later one. Langmuir and Freundlich isotherm models were linearized with experimental data; maximum adsorption capacity of 161.30 mg/g was calculated from the Langmuir model, which depicts the actual adsorption capacity.

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Section: Introductionmentioning

confidence: 99%

Study of the Removal of Basic Blue-41 from Simulated Wastewater By Activated Carbon Prepared from Discarded Jute Fibre

et al. 2022

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“…Despite its proven effectivity, the aforementioned pathway is less preferred because it produces terpin hydrate as intermediate solid, requires long reaction time ( ca . 20 h), and uses toluene as its solvent [ 11 , 12 ]. Another promising alternative is to conduct the reaction through one-pot reaction in which turpentine is directly hydrated into terpineol.…”

Section: Introductionmentioning

confidence: 99%

A method to control terpineol production from turpentine by acid catalysts mixing

Prakoso

Putra

Handojo

et al. 2020

Heliyon

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Terpineol, a promising valorisation product of pine industry, is widely used as an active ingredient for disinfectant soap, cleansers, perfumes, and pharmaceutical purposes. Synthesis of terpineol is generally carried out by separation of α-pinene compounds from crude turpentine through fractionation and then hydrated (addition of water) with the help of acid catalysts. However, direct turpentine hydration without pre-fractionation process can be more beneficial from economic and process point of views. This study aims to investigate the effect of both single and mixed/combined catalysts towards terpineol yield. Combined strong and weak acid catalysts were required to obtain high feed conversion and terpineol yield. The selectivity of terpineol is then correlated to the solubility of a weak/organic acid. In this study, the highest yield of terpineol was 54.0 ± 8.2%-w/w using combination of formic acid and sulphuric acid.

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“…169 Zeolites can be found in nature but are usually produced in large-scale industries to improve their basic properties, such as surface area, selectivity, porosity, and thermal stability. 170 Zeolite has been widely used in purification and separation processes in the chemical industry. 170 Zeolite is considered to be an effective adsorbent for removing various drugs from poor-quality water, including antibiotics, non-steroidal and antiinflammatory drugs.…”

Section: (B)mentioning

confidence: 99%

“…170 Zeolite has been widely used in purification and separation processes in the chemical industry. 170 Zeolite is considered to be an effective adsorbent for removing various drugs from poor-quality water, including antibiotics, non-steroidal and antiinflammatory drugs. 171 Such characteristics in mesoporous metal oxides are important features of adsorbent properties.…”

Section: (B)mentioning

confidence: 99%

Mesoporous and nanostructured metal oxides for adsorptive water treatment

Al‐Salihi¹

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[EMBARGOED UNTIL 6/1/2023] Sewage containing a certain amount of dyes, when discharged into the environment, will cause serious problems and diseases to the human body and pose a threat to the ecosystem. In addition, waste from large animal farms, antibiotics used in aquaculture, and wastewater from hospitals and manufacturers are the main sources of antibiotic pollution in the environment, leading to antibiotic resistance genes. Therefore, this dissertation research was focused on materials that are easily available, environmentally friendly and low cost in removing dyes and antibiotics from the wastewater streams. The condensed layer deposition technique (CLD) was used to make novel mesoporous metal oxides to achieve nanoscale structures with high surface areas for adsorptive water treatment. The potential of mesoporous Al2O3 nanoshells, mesoporous TiO2 coatings on Fe3O4 nanoparticles, and aluminosilicate zeolite as adsorbents in water treatment was evaluated for the removal of Congo red (CR), sulfamethazine (SMZ) and tetracycline (TC) from aqueous solutions, respectively. Experimental parameters such as contact time, temperature, ionic strength and pH value were investigated in each study. The kinetics and thermodynamic equilibrium of those adsorption processes were modeled based on the experiments. For alumina nanoshells, carbon black (CB) was first successfully coated with alumina using the CLD process, followed by removing the CB, leading to porous Al2O3 nanoshells, with a high specific surface area (217.7 m2 g-1) The adsorption rate of CR on the Al2O3 nanoshells was fast, with 68.5 [percent] achieved in the first 5 min and 94.5 [percent] within 30 min. The strong adsorptive affinity of Al2O3 nanoshells for CR is attributed to the hydrogen bonding and electrostatic attraction. The activation energy studies indicated that the binding process occurs through chemisorption. Mesoporous TiO2 coatings on Fe3O4 nanoparticles (m-TiO2/Fe3O4) were prepared with a high specific surface area of 291.42 m2 g-1 and used to remove SMZ. The m-TiO2/Fe3O4 achieved a high adsorption capacity of 270.3 mg g-1 toward SMZ at 25 [degrees] C and pH 7.01, with a fast equilibrium time of 40 min. The adsorption process was exothermic and spontaneous. The hydrogen bonding and hydrophobic interactions between the SMZ and m-TiO2/Fe3O4 played a vital role in the adsorption process. Reusability experiments on this magnetic nanocomposite adsorbent showed only a 5.2 [percent] decrease in activity after 5 cycles, demonstrating a great reusability of the adsorbent. It can reduce both cost and material waste in water treatment. Aluminosilicate zeolite in the form of nanoparticles were synthesized in heptane with condensed water and aluminum and silicon precursors. The TC removal efficiency on this adsorbent is above 97 [percent] in a wide pH range from 4.70 to 7.17 within only 20 min. The high adsorption affinity is attributed to the hydrogen bonding between TC and the hydroxyl groups in the aluminosilicate zeolite and the outer-sphere complexation. The thermodynamic studies revealed that the adsorption process is spontaneous and exothermic. Finally, the kinetic studies have shown that the adsorption processes of the three organic pollutants follow a pseudo-second-order model. In addition, the Langmuir isotherm adsorption model is in good agreement with the experimental data. Overall, these studies suggest that, due to their fast kinetics and high adsorption capacity, the low-cost mesoporous materials are highly effective as adsorbents for separating dyes and antibiotics from contaminated water.

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Zeolites as Adsorbent Materials for Decolorization of Crude Terpineol

Cited by 7 publications

References 6 publications

Study of the Removal of Basic Blue-41 from Simulated Wastewater By Activated Carbon Prepared from Discarded Jute Fibre

Study of the Removal of Basic Blue-41 from Simulated Wastewater By Activated Carbon Prepared from Discarded Jute Fibre

A method to control terpineol production from turpentine by acid catalysts mixing

Mesoporous and nanostructured metal oxides for adsorptive water treatment

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