Adsorption mechanism and synthesis of adjustable hollow hydroxyapatite spheres for efficient wastewater cationic dyes adsorption

Shafiq, Farishta; Liu, Chenyu; Zhou, Haibin; Chen, Hailiang; Yu, Simiao; Qiao, Weihong

doi:10.1016/j.colsurfa.2023.131713

Cited by 20 publications

(3 citation statements)

References 71 publications

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“…Where C 0 and C e are the initial and equilibrium concentrations of methylene blue (mg/L), V is the volume of solution (L), and W is the mass of adsorbent (gram) [ 24 ].…”

Section: Methodsmentioning

confidence: 99%

Exploring the sustainable elimination of dye using cellulose nanofibrils- vinyl resin based nanofiltration membranes

Ragab,

Gumaah,

El Aziz Elfiky

et al. 2024

BMC Chemistry

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This study focuses on the development of a novel self-cleaning nanofiltration membrane for the efficient removal of the cationic dye methylene blue (MB) from industrial wastewater. The membrane is composed of vinyl resin (VR), cellulose nanofibrils (CNF), and titanium alpha aluminate (TAAL) nanoparticles.The TAAL loading ranged from 1 to 5 wt%, the pH varied from 5 to 10, and the initial MB concentration ranged from 10 to 50 ppm. Using a dead-end filtration system, the (VR/CNF@TAAL) membrane with 5 wt% TAAL at pH 10 demonstrated excellent performances. It achieved a remarkable 98.6% removal efficiency for 30 ppm MB dye, with a maximum adsorption capacity of 125.8 mg/g. The adsorption kinetics analysis revealed that the process followed the pseudo-second-order model, indicating a chemisorption mechanism. The rate constant was determined to be 1.2732 × 10–3 g mg−1 min−1. The Freundlich isotherm model provided a better fit (R2 = 0.996) than the Langmuir model, suggesting multilayer adsorption on the nanocomposite membrane surface. In addition to its high adsorption and filtration capabilities, the (VR/CNF@TAAL) nanocomposite membrane exhibited cost-effectiveness and environmental friendliness as an adsorbent for MB removal from industrial wastewater. The membrane’s self-cleaning property further contributes to sustainability by reducing the need for additional chemical treatments.

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“…Where C 0 and C e are the initial and equilibrium concentrations of methylene blue (mg/L), V is the volume of solution (L), and W is the mass of adsorbent (gram) [ 24 ].…”

Section: Methodsmentioning

confidence: 99%

Exploring the sustainable elimination of dye using cellulose nanofibrils- vinyl resin based nanofiltration membranes

Ragab,

Gumaah,

El Aziz Elfiky

et al. 2024

BMC Chemistry

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“…After adsorption these wavenumbers were shifted into different position indicates that the electrostatic attraction was involved between MB + and hybrid composites. [59] SEM analysis result revealed that there is some surface modification was observed in BTHAAlg and BTHAGel composites after MB adsorption. In EDAX analysis, the presence of new sulphur and nitrogen peak in Figure 4b, d confirmed the adsorption of MB onto BTHAAlg and BTHAGel composites.…”

Section: Adsorption Mechanism Of Mbmentioning

confidence: 95%

Facile Fabrication of Hydroxyapatite and Bentonite Encapsulated Biopolymeric Hybrid Composites for Selective Removal of Methylene Blue

Sathiyajothi,

Viswanathan,

Naushad

2024

ChemistrySelect

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Dyeing industries release their hazardous dyeing effluents into the environment which affects the human health and ecosystem. Hence, the removal of dye from waste‐water is mandatory one. In this present study, focus on the fabrication of bio‐clay‐ceramic hybrid composites by dispersing bentonite (BT) clay and ceramic hydroxyapatite (HA) into alginate (Alg) and gelatin (Gel) polymeric matrixes by in‐situ method which gives BTHAAlg and BTHAGel hybrid composites for methylene blue (MB) removal. The various adsorption influencing parameters such as shaking time, adsorbent dosage, pH and initial MB concentration were optimized under batch method. The highest MB adsorption capacities of BTHAAlg and BTHAGel composites were found to be 43.70 and 47.50 mg/g respectively with optimized conditions of 100 mg/L of initial MB concentration, 40 min shaking time and 0.1 g dosages. In pH studies, the high MB adsorption capacity of bio‐clay‐ceramic composites were noticed at pH 11. The characterization techniques like FTIR, SEM and EDAX analysis were performed to find the physico‐chemical properties of bio‐clay‐ceramic composites. The equilibrium data of hybrid composites towards MB adsorption was well fitted with Langmuir isotherm model than D‐R and Fruendlich models because of higher r and low sd values. The negative values of ▵Go at three different temperatures (303, 313 and 323 K) indicate that the spontaneous nature of MB adsorption, while positive values of ΔHo and ΔSo revealed that the MB adsorption onto hybrid composites was endothermic in nature and more randomness occurred at solid/liquid interfaces. In kinetic studies, the MB adsorption onto hybrid composites was well fitted with pseudo‐second‐order and intra‐particle diffusion models. The electrostatic attraction and hydrogen bonding plays a dominant role in MB adsorption onto BTHAAlg and BTHAGel bio‐clay‐ceramic composites. The regeneration studies proposed that the hybrid composites can be reusable upto five cycles. Hence, the developed bio‐clay‐ceramic hybrid composites were act as best adsorbents for MB removal.

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“…Among these, the adsorption method has been regarded as a flexible procedure for wastewater management. It offers significant advantages, including affordability, low cost, profitability, performance, and service simplicity, compared to other conventional techniques [25][26][27][28][29][30]. There are a lot of adsorbents for the removal of crystal violet dye such as natural zeolite (177.75 mg/g), activated carbon/chitosan composite (2.38 mg/g), pyrophyllite (9.58 mg/g), Fe 3 O 4 /sodium dodecyl sulphate (166.70 mg/g), multi-walled carbon nanotubes (90.52 mg/g), aromatic polyimides (303.03 mg/g), polyacrylonitrile (5.46 mg/g), and activated carbon/Fe 3 O 4 composite (35.30 mg/g) [20,[31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis and Characterization of Novel Nanostructures for the Efficient Disposal of Crystal Violet Dye from Aqueous Media

Abdelrahman,

Algethami,

AlSalem

et al. 2023

Inorganics

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An excessive accumulation of crystal violet dye in the human body results in an accelerated heart rate, tetraplegia, eye irritation, and long-term damage to the transparent mucous membrane that protects the eyeballs. Accordingly, in this paper, sodium manganese silicate/sodium manganese silicate hydroxide hydrate was easily fabricated as a novel type of nanostructures for the successful disposal of crystal violet dye from aqueous solutions. The formed sodium manganese silicate/sodium manganese silicate hydroxide hydrate nanostructures after the hydrothermal treatment of the gel produced from the interaction of Mn(II) ions with Si(IV) ions at 180 °C for 6, 12, 18, and 24 h were abbreviated as MS1, MS2, MS3, and MS4, respectively. The XRD showed that the average crystallite size of the MS1, MS2, MS3, and MS4 samples is 8.38, 7.43, 4.25, and 8.76 nm, respectively. The BET surface area of the MS1, MS2, MS3, and MS4 samples is 41.58, 46.15, 58.25, and 39.69 m2/g, respectively. The MS1, MS2, MS3, and MS4 samples consist of spherical and irregular shapes with average grain sizes of 157.22, 88.06, 43.75, and 107.08 nm, respectively. The best adsorption conditions of the crystal violet dye employing the MS1, MS2, MS3, and MS4 products were achieved at pH = 8, contact time = 140 min, and solution temperature = 298 kelvin. The linear pseudo-2nd-order model as well as the linear Langmuir isotherm better describe the disposal of the crystal violet dye using the MS1, MS2, MS3, and MS4 adsorbents. The studied thermodynamic parameters indicated that the disposal of the crystal violet dye employing the MS1, MS2, MS3, and MS4 adsorbents is spontaneous, exothermic, and chemical. The maximum disposal capacities of the MS1, MS2, MS3, and MS4 adsorbents towards crystal violet dye are 342.47, 362.32, 411.52, and 310.56 mg/g, respectively.

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Adsorption mechanism and synthesis of adjustable hollow hydroxyapatite spheres for efficient wastewater cationic dyes adsorption

Cited by 20 publications

References 71 publications

Exploring the sustainable elimination of dye using cellulose nanofibrils- vinyl resin based nanofiltration membranes

Exploring the sustainable elimination of dye using cellulose nanofibrils- vinyl resin based nanofiltration membranes

Facile Fabrication of Hydroxyapatite and Bentonite Encapsulated Biopolymeric Hybrid Composites for Selective Removal of Methylene Blue

Facile Synthesis and Characterization of Novel Nanostructures for the Efficient Disposal of Crystal Violet Dye from Aqueous Media

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