A Novel Biodegradable Magnetically/Recyclable Cellulose-Based Adsorbent: Synthesis, Characterization, and Experimental Design Toward Cd(II) Removal

Ghahremani, P.; Nezamzadeh‐Ejhieh, Alireza; Vakili, Mohammad

doi:10.1007/s11270-023-06176-0

Cited by 10 publications

(7 citation statements)

References 61 publications

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“…This broad absorbance peak is also related to the hydrogen bonding between the O−H groups of the glucopyranose ring of the polysaccharide structural chain. The gum skeleton vibration with the angle deformation mode formed by heavy atoms (C−C−O, C−O−C) and the mode belonging to the internal rotations around CO bonds appear as FTIR absorption bands below 700 cm −1 [34,35] …”

Section: Resultsmentioning

confidence: 99%

“…The compressive performance of the prepared composite aerogel is approximately 8–30 times higher than that of SiO 2 aerogel. These studies demonstrated the effect of cellulose, especially plant cellulose, in enhancing the mechanical properties of aerogels and and its practical application [19] …”

Section: Introductionmentioning

confidence: 86%

“…The gum skeleton vibration with the angle deformation mode formed by heavy atoms (CÀ CÀ O, CÀ OÀ C) and the mode belonging to the internal rotations around CO bonds appear as FTIR absorption bands below 700 cm À 1 . [34,35] Figure 6 illustrates the notable alteration in the water contact angle resulting from the addition of a small quantity of BC. It is evident that the water contact angle increases as the mass of BC increases.…”

Section: Surface Functional Groups and Water Contact Anglementioning

confidence: 99%

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Facile preparation of Bacterial cellulose‐SiO₂ composite aerogel with good mechanical strength and thermal stability

Chen,

Yang,

Zhu

et al. 2024

ChemistrySelect

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Bacterial cellulose is a natural biopolymer with an ultrafine nanofibrous reticulated matrix and crosslinking active sites. In this work, composite silica aerogels were prepared using a two‐step acid‐base catalysis and ambient pressure drying, with methyltriethoxysilane as the silica precursor and a trace amount of bacterial cellulose as the silicon skeleton reinforcement. The preparation was carried out in water without the addition of other organic solvents and without solvent replacement. The preparation conditions were optimized, and the prepared composite aerogels were characterized using SEM, BET, FTIR, a contact angle meter, and GA‐DTA. The results showed that the introduction of a trace amount of bacterial cellulose could obviously change the morphology and hydrophilicity of the aerogels, and increase its compressive strength up to 5 MPa without significant changes in its specific surface area and density. The addition of bacterial cellulose helped the aerogels maintain its original shape after being heated at high temperatures.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 86%

Section: Surface Functional Groups and Water Contact Anglementioning

confidence: 99%

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Facile preparation of Bacterial cellulose‐SiO₂ composite aerogel with good mechanical strength and thermal stability

Chen,

Yang,

Zhu

et al. 2024

ChemistrySelect

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“…to obtain data and providing a more precise estimate with reduced variability of each factor's effects [32] . DOE enables the assessment of simultaneous interactions of variables and the response surface [33] . This can be achieved through a Fractional Factorial Design (FFD), a structured methodology employed to discern relationships between variables affecting the dependent factors (responses) evaluated in catalytic processes.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Catalytic Conditions for Dye Discoloration Using Nano‐TiO₂ Films: A Fractional Factorial Design Approach

Naranjo‐Castañeda,

García‐Rocha,

Gallardo‐Hernández

et al. 2024

ChemistrySelect

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In this research, selected catalytic activity conditions of nano Cu‐TiO2 films were evaluated through a 2IV4−1 Fractional Factorial Design for methylene blue discoloration. The following conditions were set at two levels: dye concentration (mg/L) (A) at 3.13 and 5.81; aeration (psi) (B) with and without; radiation (nm) (C) at 320 (UV) and 470 (Visible); and nano‐TiO2 films (D) without and with Cu‐doping. Films were prepared by the Sol‐Gel dip‐coating method and characterized using X‐ray diffraction, revealing an anatase phase in TiO2; and anatase, rutile, and brookite crystalline phases in Cu‐doped nano‐TiO2, with average band gap energies of 3.82 and 3.77 eV. The catalytic activity of films was significantly affected (p<0.05) by aeration (0.0002), radiation (0.001), and Cu‐doped nano‐TiO2 (0.004). Dye concentration did not have a significant effect; however, the AC interaction was significant (p=0.015). A discoloration efficiency of 46.23 % was obtained with 5.81 mg/L dye concentration using Cu‐doped TiO2, with UV radiation and without aeration, whereas a 52.32 % efficiency was achieved with 3.13 mg/L dye concentration using non Cu‐doped TiO2. Using factorial designs allows us to identify the main variables and their interactions to determine the optimal conditions for the catalytic activity of nano‐TiO2.

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“…Natural plant biomaterials have gained great attention for the synthesis of a variety of functional adsorbents because of their merits including extensive sources, sustainability, cost-effective, and high availability of functional groups. − Biomass from waste environmental plants often serves as a stable substrate for the generation of desired nano/micromotors with particular morphological structure. Waste cotton as a sustainable biomass is a typical polycyclic glucose polymer with plenty of cellulose and a long fiber structure with stable mechanical strength, which is an attractive material to fabricate tubular structured motors.…”

Section: Introductionmentioning

confidence: 99%

Construction of Sustainable Biomass Bubble Propulsion Micromotor and Selective Recognition/Separation of Shikimic Acid with Open 3D Target Imprinting Cavity

Zhu,

Shao,

Yuan

et al. 2023

ACS Sustainable Chem. Eng.

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Self-propelled nano/micromotors that harvest external energy from the surrounding environment and transform it into the power for autonomous movement have manifested great potential in the separation field. In this work, a bubble-propelled hierarchical bifunctional monomer imprinted micromotor has been demonstrated based on natural cotton fiber (CF) biomass as a platform and MnO 2 as the catalytic medium. CF@MnO 2 is loaded with Ni(OH) 2 nanosheets by a simple hydrothermal reaction, displaying an open three-dimensional structure with a large specific surface area for the construction of an imprinted layer. The covalent functional monomer 3-aminophenylboronic acid (APBA) and noncovalent functional monomer (3-aminopropyl)triethoxysilane (APTES) were used to create imprinted cavities for the target. Such a micromotor (CF@MnO 2 @Ni(OH) 2 -MIPs) performs self-propulsion behavior powdered by the decomposition of H 2 O 2 fuel and possesses accessible recognition sites for the selective recognition and separation of shikimic acid (SA), which reinforces the adsorption kinetics process and separation specificity. The micromotor shows a maximal adsorption capacity of 127.1 mg g −1 at pH 7.5 in the presence of H 2 O 2 , which has risen by 20.9% compared with the counterpart without H 2 O 2 . In addition, the adsorption performance of the micromotor fits well with pseudo-second-order (PSO) kinetics and the Langmuir isotherm model, suggesting that chemisorption is the main rate determination step and the adsorption process is a single-layer adsorption. The adsorption quantity of SA is 4.74 times, 4.58 times, and 4.33 times higher than that of hydroquinone (HDQ), p-hydroxybenzoic acid (PHB), and Quercetin, respectively, implying the bifunctional monomer imprinted strategy enhances the affinity of CF@MnO 2 @Ni(OH) 2 -MIPs for SA. After five capture/release cycles, the adsorption capacity remains above 95%. This work provides new insight into the design of potential materials for the adsorption of SA, which may open up new avenues for fabricating advanced adsorbents for the practical separation of natural products.

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A Novel Biodegradable Magnetically/Recyclable Cellulose-Based Adsorbent: Synthesis, Characterization, and Experimental Design Toward Cd(II) Removal

Cited by 10 publications

References 61 publications

Facile preparation of Bacterial cellulose‐SiO₂ composite aerogel with good mechanical strength and thermal stability

Facile preparation of Bacterial cellulose‐SiO₂ composite aerogel with good mechanical strength and thermal stability

Evaluation of Catalytic Conditions for Dye Discoloration Using Nano‐TiO₂ Films: A Fractional Factorial Design Approach

Construction of Sustainable Biomass Bubble Propulsion Micromotor and Selective Recognition/Separation of Shikimic Acid with Open 3D Target Imprinting Cavity

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A Novel Biodegradable Magnetically/Recyclable Cellulose-Based Adsorbent: Synthesis, Characterization, and Experimental Design Toward Cd(II) Removal

Cited by 10 publications

References 61 publications

Facile preparation of Bacterial cellulose‐SiO2 composite aerogel with good mechanical strength and thermal stability

Facile preparation of Bacterial cellulose‐SiO2 composite aerogel with good mechanical strength and thermal stability

Evaluation of Catalytic Conditions for Dye Discoloration Using Nano‐TiO2 Films: A Fractional Factorial Design Approach

Construction of Sustainable Biomass Bubble Propulsion Micromotor and Selective Recognition/Separation of Shikimic Acid with Open 3D Target Imprinting Cavity

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Product

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Facile preparation of Bacterial cellulose‐SiO₂ composite aerogel with good mechanical strength and thermal stability

Facile preparation of Bacterial cellulose‐SiO₂ composite aerogel with good mechanical strength and thermal stability

Evaluation of Catalytic Conditions for Dye Discoloration Using Nano‐TiO₂ Films: A Fractional Factorial Design Approach