Removal of Rhodamine B from aqueous solution by stalk corn activated carbon: adsorption and kinetic study

Mousavi, Seyyed Alireza; Kamarehie, Bahram; Almasi, Ali; Darvishmotevalli, Mohammad; Salari, Mehdi; Moradnia, Maryam; Azimi, Faramarz; Ghaderpoori, Mansour; Neyazi, Zhaleh; Karami, M. Amin

doi:10.1007/s13399-021-01628-1

Cited by 73 publications

(18 citation statements)

References 60 publications

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“…The maximum adsorption capacity of RhB on modified zeolite was 15.97mg/g at 303K. The favorability of the adsorption process was also tested by Freundlich equation [9]. 1/n was between 0 and 1, which confirmed the favorability of the process.…”

Section: Effect Of Ph Value On the Adsorption Of Rhbmentioning

confidence: 66%

Research on the adsorption of RhB on CTMAB modified zeolite: adsorption kinetics, isotherm and thermodynamics studies

Hong-yan

et al. 2022

J. Phys.: Conf. Ser.

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Cetyltrimethylammonium bromide (CTMAB) modified zeolite was used as the adsorbent, the adsorption behavior of simulated rhodamine B (RhB) dye wastewater was studied. The effects of adsorbent dosage and pH on RhB adsorption by the modified zeolite were investigated. The results show that the increase of the dosage of modified zeolite can improve the removal rate of RhB. The change of pH has a certain influence on the adsorption effect of RhB. The pseudo-second order kinetic model can accurately describe the adsorption kinetics. The study of adsorption equilibrium shows that Freundlich model can better fit the adsorption process than Langmuir model, and the maximum adsorption capacity was 15.97mg/g (303k). The thermodynamic calculation results show that the adsorption of RhB on cetyltrimethylammonium bromide (CTMAB) modified zeolite was an endothermic process, and the increase of the temperature was conducive to the reaction.

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Section: Effect Of Ph Value On the Adsorption Of Rhbmentioning

confidence: 66%

Research on the adsorption of RhB on CTMAB modified zeolite: adsorption kinetics, isotherm and thermodynamics studies

Hong-yan

et al. 2022

J. Phys.: Conf. Ser.

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“…Dyes, divided into three categories: anionic, cationic, and non-ionic dyes, which are widely used in the textile, , printing, papermaking, leather, and cosmetic industries, have been classified as the highest-priority water pollutants. , Nevertheless, the poor degradability of organic dyes upon radiation and oxidation makes them difficult to eliminate . Once these substances are discharged into water bodies, their persistence prevents the penetration of sunlight to the deepest levels and changes the photosynthetic activity of the aquatic environment. − Additionally, they increase the turbidity of wastewater that leads to the deterioration of water quality. , Rhodamine B (RhB) is an extensively used synthetic anthraquinone cationic dye, which is reported to be highly toxic and carcinogenic, causing detrimental effects, for instance, cognitive impairment, anemia, kidney damage, and reproductive toxicity. , Moreover, the extensive use of RhB is noxious when inhaled and ingested, leading to liver and thyroid damage and eye and skin irritation. Therefore, there is an urgent need to remove harmful dyes from wastewater.…”

Section: Introductionmentioning

confidence: 99%

“… 7 − 9 Additionally, they increase the turbidity of wastewater that leads to the deterioration of water quality. 10 , 11 Rhodamine B (RhB) is an extensively used synthetic anthraquinone cationic dye, which is reported to be highly toxic and carcinogenic, causing detrimental effects, for instance, cognitive impairment, anemia, kidney damage, and reproductive toxicity. 12 , 13 Moreover, the extensive use of RhB is noxious when inhaled and ingested, leading to liver and thyroid damage and eye and skin irritation.…”

Section: Introductionmentioning

confidence: 99%

“… 34 Furthermore, the affluent functional groups and open stomata of CHM residues can help in preparing biochar for efficiently capturing dyes in aqueous solutions. 35 Vigneshwaran et al 36 developed a sulfur-doped tapioca peel biochar with a specific BET surface area of 146 m 2 /g, while its RhB adsorption capacity was 33.10 mg/g at 298 K. Mousavi et al 11 recorded a maximum RhB adsorption capacity of 5.6 mg/g on biochar derived from corn stalks. Although these biomass/residues show good potential for dye treatment, their poor dye adsorption capacities and small surface areas are major obstacles.…”

Section: Introductionmentioning

confidence: 99%

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Biochar Derived from Chinese Herb Medicine Residues for Rhodamine B Dye Adsorption

Zhao

et al. 2023

ACS Omega

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In this study, one well-known CHM residue (Atropa belladonna L., ABL) was used to prepare biochar capable of adsorbing rhodamine B (RhB) with an ultrahigh surface area for the first time. Three micropore-rich ABL biochars including ABL@ ZnCl 2 (1866 m 2 /g), ABL@H 3 PO 4 (1488 m 2 /g), and ABL@KOH (590 m 2 /g) were obtained using the one-step carbonization method with activation agents (ZnCl 2 , H 3 PO 4 , and KOH) via chemical activation and carbonization at 500 °C, and their adsorption performance for RhB was systematically studied with adsorption kinetics, isotherms, and thermodynamics. Through pore diffusion, π−π interaction, and hydrogen bonding, ABL biochar had excellent adsorption performance for RhB. Moreover, when C 0 was 200 mg/L, biochar dosage was 1 g/L, and the contact time was 120 min; the maximum RhB adsorption capacity and removal efficiency on ABL@ZnCl 2 and ABL@H 3 PO 4 were 190.63 mg/g, 95% and 184.70 mg/g, 92%, respectively, indicating that it was feasible to prepare biochar from the ABL residue for RhB adsorption. The theoretical maximum adsorption capacities of ABL@ZnCl 2 and ABL@H 3 PO 4 for RhB were 263.19 mg/g and 309.11 mg/g at 25 °C, respectively. Furthermore, the prepared biochar showed good economic applicability, with pay back of USD 972/t (ABL@ZnCl 2 ) and USD 987/t (ABL@H 3 PO 4 ), respectively. More importantly, even after five cycles, ABL@H 3 PO 4 biochar still showed great RhB removal efficiency, suggesting that it had a good application prospect and provided a new method for the resource utilization of traditional CHM residues. Additionally, pore diffusion, π−π interactions, and hydrogen bonding all play roles in the physical adsorption of RhB on ABL biochar. π−π interactions dominated in the early stage of RhB adsorption on ABL@H 3 PO 4 , while pore diffusion played a crucial role in the whole adsorption process on both adsorbents.

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“…[18,19] AC is one of the efficient materials that is extensively utilized in environmental applications due to advantages such as the AC is costly affordable, high adsorption capacity, pore structure, and presence of various surface oxygen functional groups at its surface that can strongly react with PS to produce SO 4 *À or OH * radicals. [20][21][22] In this study, the ability of AC to catalyze PS by its functional group is evaluated, and the degradation of ACT using an AC/PS system is measured and discussed, as well as the mineralization, degradation efficiency, kinetic reaction, and degradation pathway. In addition, the effect of pH, different PS and AC concentrations on degradation performance is also evaluated.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous Activation of Persulfate by Activated Carbon for Efficient Acetaminophen Degradation: Mechanism, Kinetics, Mineralization, and Density Functional Theory

2022

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Pharmaceutical compounds attracted environmentalists according to their unknown impact on the ecosystem and the increase in their demand. Acetaminophen (ACT) or paracetamol has been detected more than the natural concentration value. To avoid the negative impact of the ACT accumulation into the environment, many treatment techniques have been applied. Among them, advanced oxidation process (AOP) techniques have shown high efficiency to remove ACT. In this study, the ability of AC to catalyze PS by its functional group was evaluated, and the degradation efficiency of ACT was determined by using an activated carbon (AC)/persulfate (PS) system. In addition, the mechanism, kinetics, mineralization, and the density functional theory were also investigated. HPLC was used to measure ACT concentration, and the optimum results in this work were 100 % degradation within 3 minutes at catalysts concentrations AC 8.25 mM/PS 1.65 mM at pH 7 and the mineralization were 24 % after 90 min of reaction. And the degradation pathway of ACT was built based on density functional theory. This study will contribute to clarifying the role of carbon catalysts in the PS oxidation of pollutants. The degradation of ACT by using an AC/PS system is recommended because of the high degradations efficiency, non-toxic byproducts, and environmentally friendly.

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Removal of Rhodamine B from aqueous solution by stalk corn activated carbon: adsorption and kinetic study

Cited by 73 publications

References 60 publications

Research on the adsorption of RhB on CTMAB modified zeolite: adsorption kinetics, isotherm and thermodynamics studies

Research on the adsorption of RhB on CTMAB modified zeolite: adsorption kinetics, isotherm and thermodynamics studies

Biochar Derived from Chinese Herb Medicine Residues for Rhodamine B Dye Adsorption

Heterogeneous Activation of Persulfate by Activated Carbon for Efficient Acetaminophen Degradation: Mechanism, Kinetics, Mineralization, and Density Functional Theory

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