Synthesis and characterization of TiO
            <sub>2</sub>
            via sol-gel method for efficient photocatalytic degradation of antibiotic ofloxacin

Mushtaq, Kanza; Saeed, Muhammad; Gul, Warda; Munir, Mamoona; Firdous, Aswa; Yousaf, Tayyaba; Khan, K Arshad Ahmed; Sarwar, Hafiz Muhammad Rizwan; Muhammad, Raza; Zahid, Sara

doi:10.1080/24701556.2020.1722695

Cited by 28 publications

(17 citation statements)

References 27 publications

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“…The SEM micrograph in Figure 5a presents the surface morphology of a small spherical TiO2 surface with a uniform particle size. These results are in accordance with those of a previous study [26]. Figure 5b presents the morphology of ZrO2, clearly indicating that the form of the granules is not uniform.…”

Section: Cellulose-tio2-zro2 Nanocompositesupporting

confidence: 92%

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Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

Dini

Helmiyati

Krisnandi

2021

Bull. Chem. React. Eng. Catal.

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This work demonstrated the use of green material catalysts, produced from Sengon sawdust waste, to obtain nanocellulose biopolymers. The green material catalysts were utilized as catalysts support of TiO2−ZrO2 binary oxide in the form of nanocomposite materials with superior synergistic properties. The isolation of nanocellulose was achieved using a hydrolysis method with a yield of 63.40%. The TiO2 and ZrO2 nanoparticles have average particle sizes of around 25 and 15 nm, respectively, and the binary oxides of TiO2–ZrO2 pretained an average particle size of 30 nm were used. Furthermore, the nanocellulose combined with the TiO2−ZrO2 binary oxide had formed a cellulose/TiO2−ZrO2 nanocomposite with an average particle size of 30 nm. This indicates that the supporting nanocellulose can stabilize the nanoparticles and avoid aggregation. Moreover, the nanocomposites can be used as a catalyst for the conversion of glucose to 5-ethoxymethylfurfural (5-EMF). The catalytic activity increased with the nanoparticle effect obtained ZrO2, TiO2, TiO2-ZrO2, and cellulose and TiO2-ZrO2 nanocomposite, in 15.50%, 20.20%, 35.20%, and 45.50% yields, respectively. The best yield of 5-EMF was 45.50%, with reaction conditions of 1:1 TiO2–ZrO2 ratio, 4 h reaction time, and 160 °C reaction temperature. The use of nanocellulose biopolymer generated from Sengon sawdust waste in Indonesia provides a promising catalyst support material as an alternative green catalyst. In addition, the glucose carbohydrates can be converted to biofuel feedstocks in the development of a renewable alternative energy. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Section: Cellulose-tio2-zro2 Nanocompositesupporting

confidence: 92%

“…TiO2 nanoparticle synthesis was conducted via a previously reported sol-gel method with a slight modification [26]. About 15 mL of TIP was added to 60 mL of ethanol, and the solution was mixed using a magnetic stirrer for 30 min.…”

Section: Synthesis Of Titanium Dioxide (Tio2)mentioning

confidence: 99%

Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

Dini

Helmiyati

Krisnandi

2021

Bull. Chem. React. Eng. Catal.

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“…Titanium oxide has a high degradation rate for antibiotics in water, however, owing to the narrow spectral absorption of pure TiO 2 , researchers often modify it to efficiently degrade antibiotics in wastewater. Mushtaq et al (2020) used titanium isopropoxide as a titanium precursor to synthesize peptide-based nanoparticles to study the degradation of NOR. Mountassir et al (2020) constructed recyclable LDH-TiO 2 nanocomposites to degrade sulfamethyisoxazole under UV radiation, where TiO 2 can be reused, to reduce the threat to water resources.…”

Section: Degradation Of Antibiotics By Photolysismentioning

confidence: 99%

A Review of the Distribution of Antibiotics in Water in Different Regions of China and Current Antibiotic Degradation Pathways

Liu

Tan

Zhang

et al. 2021

Front. Environ. Sci.

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Antibiotic pollution is becoming an increasingly serious threat in different regions of China. The distribution of antibiotics in water sources varies significantly in time and space, corresponding to the amount of antibiotics used locally. The main source of this contamination in the aquatic environment is wastewater from antibiotic manufacturers, large scale animal farming, and hospitals. In response to the excessive antibiotic contamination in the water environment globally, environmentally friendly alternatives to antibiotics are being developed to reduce their use. Furthermore, researchers have developed various antibiotic treatment techniques for the degradation of antibiotics, such as physical adsorption, chemical oxidation, photodegradation, and biodegradation. Among them, biodegradation is receiving increasing attention because of its low cost, ease of operation, and lack of secondary pollution. Antibiotic degradation by enzymes could become the key strategy of management of antibiotics pollution in the environment in future. This review summarizes research on the distribution of antibiotics in China’s aquatic environments and different techniques for the degradation of antibiotics. Special attention is paid to their degradation by various enzymes. The adverse effects of the pollutants and need for more effective monitoring and mitigating pollution are also highlighted.

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“…Chemical vapor deposition, spinning, pyrolysis, and sol-gel process are examples of chemical synthesis approaches [ 41 ]. Titanium (Ti) dioxide NPs were fabricated from the precursor Ti-isopropoxide and calcined at 300, 350, 400, and 450 °C using a simple sol-gel method [ 53 ]. The chemical reduction was used to reduce silver nitrate into Ag-NPs using sodium citrate (TSC) and sodium borohydride (NaBH 4 ) as reducing agents [ 54 ].…”

Section: Synthesis Routes Of Nanoparticlesmentioning

confidence: 99%

Lichens—A Potential Source for Nanoparticles Fabrication: A Review on Nanoparticles Biosynthesis and Their Prospective Applications

Hamida

Ali

Abdelmeguid

et al. 2021

JoF

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Green synthesis of nanoparticles (NPs) is a safe, eco-friendly, and relatively inexpensive alternative to conventional routes of NPs production. These methods require natural resources such as cyanobacteria, algae, plants, fungi, lichens, and naturally extracted biomolecules such as pigments, vitamins, polysaccharides, proteins, and enzymes to reduce bulk materials (the target metal salts) into a nanoscale product. Synthesis of nanomaterials (NMs) using lichen extracts is a promising eco-friendly, simple, low-cost biological synthesis process. Lichens are groups of organisms including multiple types of fungi and algae that live in symbiosis. Until now, the fabrication of NPs using lichens has remained largely unexplored, although the role of lichens as natural factories for synthesizing NPs has been reported. Lichens have a potential reducible activity to fabricate different types of NMs, including metal and metal oxide NPs and bimetallic alloys and nanocomposites. These NPs exhibit promising catalytic and antidiabetic, antioxidant, and antimicrobial activities. To the best of our knowledge, this review provides, for the first time, an overview of the main published studies concerning the use of lichen for nanofabrication and the applications of these NMs in different sectors. Moreover, the possible mechanisms of biosynthesis are discussed, together with the various optimization factors influencing the biological synthesis and toxicity of NPs.

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Synthesis and characterization of TiO ₂ via sol-gel method for efficient photocatalytic degradation of antibiotic ofloxacin

Cited by 28 publications

References 27 publications

Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

A Review of the Distribution of Antibiotics in Water in Different Regions of China and Current Antibiotic Degradation Pathways

Lichens—A Potential Source for Nanoparticles Fabrication: A Review on Nanoparticles Biosynthesis and Their Prospective Applications

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Synthesis and characterization of TiO 2 via sol-gel method for efficient photocatalytic degradation of antibiotic ofloxacin

Cited by 28 publications

References 27 publications

Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

A Review of the Distribution of Antibiotics in Water in Different Regions of China and Current Antibiotic Degradation Pathways

Lichens—A Potential Source for Nanoparticles Fabrication: A Review on Nanoparticles Biosynthesis and Their Prospective Applications

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Synthesis and characterization of TiO ₂ via sol-gel method for efficient photocatalytic degradation of antibiotic ofloxacin