A review on the treatment of dyes in printing and dyeing wastewater by plant biomass carbon

Liu, Zhongchuang; Khan, Tabrez Alam; Islam, Md. Azharul; Tabrez, Unsha

doi:10.1016/j.biortech.2022.127168

Cited by 107 publications

(23 citation statements)

References 76 publications

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“…1 b), the FTIR spectrum showed slight shift in the peak position assigned to NH 2 from 3028 to 3181 cm −1 , and diminution of intensities together with slight shifting of absorption bands at 1654 and 1081 cm −1 to lower wavelengths indicating that the relevant functional groups were involved in the adsorption procedure either by van der Waals forces or hydrogen bonding 9 . Further, a slight shift in the O–H, C–O, and C–N bands; and a drop in the intensity of O–H stretching vibration at 3200 cm −1 after NB sorption, confirmed the interaction of dye molecules with existing functional groups 10 . Appearance of a new peak at 2934 cm −1 because of CH 2 group of the aromatic ring structure of dye validated the sorption process onto the nanocomposite 52 .…”

Section: Resultsmentioning

confidence: 68%

“…The most common approaches for confiscating and decolorizing dyes from aquatic system are chemical coagulation, ozonolysis, photocatalysis, microbial degradation, electrochemical methods, and adsorption 8 – 10 . But most physico-chemical techniques are rather expensive, operationally cumbersome and energy-intensive.…”

Section: Introductionmentioning

confidence: 99%

“…Multitude of adsorbents such as activated carbons 10 , zeolites 11 , graphene oxides 12 , and clays 13 have arduously been used for dyes decontamination. However, these adsorbents lack the traits of an ideal adsorbent, which has led to the pursuit for advanced adsorbents possessing higher sorption efficiencies.…”

Section: Introductionmentioning

confidence: 99%

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Efficient liquid phase confiscation of nile blue using a novel hybrid nanocomposite synthesized from guar gum-polyacrylamide and erbium oxide

Hussain

Khan

et al. 2022

Sci Rep

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In recent times, biopolymer-metal oxide nanocomposites have gained prominent importance in the attenuation of environmental toxicants from aqueous phase. But lanthanide oxide-based biopolymer nanocomposites have scantly been evaluated for their adsorption potential. A novel guar gum-polyacrylamide/erbium oxide nanocomposite (GG-PAAm/Er2O3 NC) adsorbent was synthesized by copolymerization of guar gum (GG) and acrylamide (AAm) utilizing N-N′-methylenebisacrylamide as a crosslinker and Er2O3 as a reinforcing agent. The adsorptive efficacy of GG-PAAm/Er2O3 nanocomposite was evaluated using nile blue (NB) as a model pollutant dye from aquatic system. The prepared adsorbent was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) analysis, Brunauer–Emmett–Teller (BET) analysis, thermogravimetric analysis, scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM–EDX), and high-resolution transmission electron microscopy (HRTEM). The optimal process parameters, which include dosage (0.8 g/L), agitation time (40 min), initial solution pH (6), and initial NB concentration (80 mg/L) were determined by batch methodology. The equilibrium data for NB confiscation was better expressed by Langmuir isotherm model, with maximal adsorption effectiveness (Qm) of 225.88 mg NB/g demonstrating the actively monolayer adsorption onto homogeneous surface of GG-PAAm/Er2O3 NC. The kinetics of NB sorption process onto GG-PAAm/Er2O3 NC was reliable with pseudo-second order model. Thermodynamic parameters such as ΔH° (15–17 kJ/mol) and ΔS° (0.079–0.087 kJ/mol/K), and − ΔG° (8.81–10.55 kJ/mol) for NB validated the endothermic, an increased randomness at the GG-PAAm/Er2O3–NB interface, and spontaneity and feasibility of the process, respectively. The spent nanocomposite was effectively regenerated with NaOH, and could be reused proficiently for five runs demonstrating the high reusability potential of the nanocomposite. The commendable removal efficiency and high reusability of GG-PAAm/Er2O3 NC recommended it to be a highly competent adsorbent for cationic dyes particularly NB diminution from aqueous waste.

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Section: Resultsmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 99%

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Efficient liquid phase confiscation of nile blue using a novel hybrid nanocomposite synthesized from guar gum-polyacrylamide and erbium oxide

Hussain

Khan

et al. 2022

Sci Rep

Self Cite

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“…Among them, adsorption method makes the dye molecules in the solution phase transfer to the surface of adsorbent, which is favored because of its high efficiency, low cost, and easy operation. Commonly used adsorbents include activated carbon, lignin, zeolite, metal organic framework, biomass residue, nano materials [13][14][15][16], etc. In recent years, with the rapid development of nanotechnology, the application of nano materials in the field of environment is also common.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Methylene Blue on Azo Dye Wastewater by Molybdenum Disulfide Nanomaterials

Wang

Zhang

et al. 2022

Sustainability

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In this study, flower-like MoS2 nanomaterials were synthesized by hydrothermal method with excess thiourea. The adsorption performance of MoS2 adsorbent for methylene blue (MB) in azo dye wastewater was studied. The morphology, crystal phase, and microstructure of nano MoS2 samples were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, and Fourier transform infrared spectroscopy. The effects of adsorption isotherm, kinetics, different hydrothermal time, and pH on the adsorption experiment were studied. The results showed that the MoS2 adsorbent with a hydrothermal time of 1 h had good adsorption properties for MB. The adsorption data accord with the Langmuir isotherm model, and the maximum adsorption capacity of MoS2 adsorbent is 200 mg/g, and the adsorption kinetics agrees well with the pseudo two-level model. The removal rate of MB is not significantly affected by the pH values. The large pH range can still maintain the removal rate above 93.47%, and the regeneration and recovery properties of MoS2 were also explored. Finally, the adsorption mechanism of MoS2 on MB is discussed.

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“…Because of the toxicity of dye wastewater accumulated along with industrial and technological processes, it has endangered the ecological environment and human health. Thereby, wastewater treatment is an effective way of improving efficient technologies and reducing development cost. , Up to now, scientists have successfully explored two main approaches. Photocatalytic degradation is an effective method for hand treatment, which is achieved mainly by light rays and selected suitable catalytic materials. − However, the photoelectron effect determines the activity of photocatalytic dye degradation to a great extent in water. − Another approach is physical/chemical adsorption, which binds dye molecules to the outer layer of an adsorbent by physical/chemical bonding.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Structure of a Copper-Based Functional Network for Efficient Organic Dye Adsorption

Wang

et al. 2022

Inorg. Chem.

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In the work, by incorporating polyoxometalates (POMs) into a copper(II)-based network, a novel three-dimensional (3D) porous framework, [Cu 17 Cl 3 (trz) 12 ]H 3 [GaW 12 O 40 ]•9H 2 O (Cu-GaW-TRZ), was successfully prepared and explored for the adsorption of dyes. The adsorption capacity of Cu-GaW-TRZ was calculated as 13.11 mg/g, and the dye adsorption rate equaled 96.2% for the adsorption of methylene blue (MB). Furthermore, this recyclable adsorbent is stable enough without obvious loss of adsorption capacity for at least five runs. Meanwhile, the structure of the macropores is suitable for the entry of large molecular dyes, and [GaW 12 O 40 ] 5− also can achieve efficient adsorption for cationic dyes. The results displayed a pseudo-second-order kinetic model and were well matched for MB adsorption onto Cu-GaW-TRZ. The free energy, entropy, and enthalpy of the thermodynamic parameters for the adsorption of MB were calculated, which revealed that the adsorption process was befitting for the adsorption of MB.

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A review on the treatment of dyes in printing and dyeing wastewater by plant biomass carbon

Cited by 107 publications

References 76 publications

Efficient liquid phase confiscation of nile blue using a novel hybrid nanocomposite synthesized from guar gum-polyacrylamide and erbium oxide

Efficient liquid phase confiscation of nile blue using a novel hybrid nanocomposite synthesized from guar gum-polyacrylamide and erbium oxide

Adsorption of Methylene Blue on Azo Dye Wastewater by Molybdenum Disulfide Nanomaterials

Synthesis and Structure of a Copper-Based Functional Network for Efficient Organic Dye Adsorption

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