Nanocatalytic Assemblies for Catalytic Reduction of Nitrophenols: A Critical Review

Din, Muhammad Imran; Khalid, Ruhi; Hussain, Zaib; Hussain, Tajamal; Mujahid, Adnan; Najeeb, Jawayria; Izhar, Fatima

doi:10.1080/10408347.2019.1637241

Cited by 147 publications

(87 citation statements)

References 120 publications

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“…The Langmuir–Hinshelwood (L‐H) kinetic model equation is usually applied to describe the photocatalytic degradation of aromatic xenobiotics in aqueous solutions: 29

\ln (\frac{C_{o}}{C_{t}}) = k_{a p p} t

…”

Section: Methodsmentioning

confidence: 99%

“…Another environmental problem is that the industrial water effluents contain hazardous pollutants – for example, 4‐nitrophenol (4‐NP; C 6 H 5 NO 3 ), which is used in many industries like paper, drugs, dyes, fungicides, petrochemicals, and leather 28 . Nitrophenols are listed by the environmental protection agency (EPA) as being among the top 114 toxic hazardous substances from different industrial effluents 29 . 4‐Nitrophenol is a toxic aromatic xenobiotic, known to cause skin and eye irritation.…”

Section: Introductionmentioning

confidence: 99%

“…It is highly water soluble, and its pKa value is around 7.15 at 25 °C. It is poisonous upon ingestion, causing damage to human and animal kidneys, liver, and the central nervous system 29 …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Animal bone affluence in environmental reclamation: Biodiesel production, petro‐diesel biodesulfurization and wastewater photo‐treatment

Nassar

Ismail

El‐Salamony

et al. 2021

Biofuels Bioprod Bioref

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This study provides a new emphasis for research on the valorization of biowastes into nanocatalyst and biorefineries to be integrated with petroleum bioupgrading and polluted water treatment. The response surface optimized batch transesterification of waste‐frying oil using methanol and sustainable animal bone valorized fluorapatite nanocatalyst (FAP) yielded approximately 97% biodiesel via a pseudo‐second‐order reaction with an efficient rate of 0.48 (mol L−1)−1min−1 and activation energy of 13.11 kJ mol−1. In a pioneering step, by‐products of the starch industry and the biodiesel transesterification process; corn‐steep liquor (CSL 0.2 g L−1) and bioglycerol (6.24 g L−1) as nitrogen and carbon sources, increased the dibenzothiophene biodesulfurization (BDS) efficiency of a novel biodesulfurizing Rhodococcus jialingiae strain HN3 (NCBI Gene Bank Accession No. MN173539) sixfold. Further, upon the application of such bioproducts in a batch BDS process (1/3 petro‐diesel/water) of 96 h; HN3 desulfurized 82.26% of 0.62 wt.% sulfur without affecting the petro‐diesel calorific value. In an attempt to reach zero waste, an auxiliary pioneering step was performed, where the spent waste FAP, after being efficiently used for four successive transesterification cycles, was applied to photo‐remediate 4‐nitrophenol polluted water under UV‐irradiation. Advantageously, the fresh and spent waste FAP recorded the same photodegradation capabilities. Where they obeyed the Langmuir–Hinshelwood kinetic model (R2 ≥ 0.966) recording the same rate constants (kapp 0.032 min−1) and were efficiently reused for four successive polluted‐water treatment cycles. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…The Langmuir–Hinshelwood (L‐H) kinetic model equation is usually applied to describe the photocatalytic degradation of aromatic xenobiotics in aqueous solutions: 29

\ln (\frac{C_{o}}{C_{t}}) = k_{a p p} t

…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Animal bone affluence in environmental reclamation: Biodiesel production, petro‐diesel biodesulfurization and wastewater photo‐treatment

Nassar

Ismail

El‐Salamony

et al. 2021

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

show abstract

“…It is essential to remove the toxic water pollutant 4-nitrophenol (4-NP) from industrial wastewater for domestic comestible purposes. Therefore, many researchers developed numerous processes to treat the wastewater containing 4-NP with an adsorption technique, microbial degradation, microwave assisted catalytic oxidation, photocatalytic oxidation and electrocatalytic techniques [47][48][49]. The developed silver-induced PC xerogels showed remarkable catalytic activity in the reduction of 4-NP to 4-aminophenol (4-AP) in the presence of aqueous sodium borohydride (NaBH 4 ).…”

Section: Catalytic Propertiesmentioning

confidence: 99%

Silver-Nanoparticles Embedded Pyridine-Cholesterol Xerogels as Highly Efficient Catalysts for 4-nitrophenol Reduction

2020

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Two xerogels made of 4-pyridyl cholesterol (PC) and silver-nanocomposites (SNCs) thereof have been studied for their efficient reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of aqueous sodium borohydride. Since in-situ silver doping will be effective in ethanol and acetone solvents with a PC gelator, two silver-loaded PC xerogels were prepared and successive SNCs were achieved by using an environmentally benign trisodium citrate dehydrate reducing agent. The formed PC xerogels and their SNCs were comprehensively investigated using different physico-chemical techniques, such as field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), powdered X-ray diffraction (XRD) and UV-Visible spectroscopy (UV-Vis). The FE-SEM results confirm that the shape of xerogel-covered silver nanoparticles (SNPs) are roughly spherical, with an average size in the range of 30–80 nm. Thermal degradation studies were analyzed via the sensitive graphical Broido’s method using a TGA technique. Both SNC-PC (SNC-PC-X1 and SNC-PC-X2) xerogels showed remarkable catalytic performances, with recyclable conversion efficiency of around 82% after the fourth consecutive run. The apparent rate constant (kapp) of SNC-PC-X1 and SNC-PC-X2 were found to be 6.120 × 10-3 sec-1 and 3.758 × 10-3 sec-1, respectively, at an ambient temperature.

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“…Resulting cotton/thermoplastic-Au nanocomposites were fully characterized by SEM, XRD, and XPS techniques. Recently, preparation of robust and selective nanocatalysts has gained increasing attention [38,39]. Among them, cellulose-, and thermoplastic-based gold nanocomposites were reported as catalysts used in various organic transformations [19, 40 -42].…”

Section: Introductionmentioning

confidence: 99%

Catalytic activity of novel thermoplastic/cellulose-Au nanocomposites prepared by cryomilling

Kwiczak‐Yiğitbaşı¹

2020

Turk J Chem

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Due to environmental concerns increasing attention is focused on the application and preparation of bio-based polymers and their blends. In this study, cellulosethe most spread biopolymer on Earth, has been used in the preparation of novel cotton/polypropylene-Au and cotton/polyethylene-Au nanocomposites via green mechanochemical approach. First, mechanoradicals were generated by ball milling of cotton and thermoplastics in cryo conditions, then, these radicals were used in the reduction of gold ions to gold nanoparticles (Au NPs). Nanocomposites were characterized by Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), and X-Ray Photoelectron Spectroscopy (XPS). The application of mechanochemistry in obtaining cotton/thermoplastic blends allowed homogenous and fine blending of the samples and in addition, excluded the usage of toxic solvents. Since gold nanoparticles exhibit a wide range of applications e.g. in catalysis, cotton/thermoplastic-Au nanocomposites were used to catalyse the reduction reaction of 4-nitrophenol to 4-aminophenol followed by UV-Vis spectroscopy. Finally, the hydrophobicity of the nanocomposites was alternated by tuning the blend composition. In the prepared nanocomposites, cotton and thermoplastics act as very good supporting matrices for gold nanoparticles and give a satisfactory access to NPs.

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Nanocatalytic Assemblies for Catalytic Reduction of Nitrophenols: A Critical Review

Cited by 147 publications

References 120 publications

Animal bone affluence in environmental reclamation: Biodiesel production, petro‐diesel biodesulfurization and wastewater photo‐treatment

Animal bone affluence in environmental reclamation: Biodiesel production, petro‐diesel biodesulfurization and wastewater photo‐treatment

Silver-Nanoparticles Embedded Pyridine-Cholesterol Xerogels as Highly Efficient Catalysts for 4-nitrophenol Reduction

Catalytic activity of novel thermoplastic/cellulose-Au nanocomposites prepared by cryomilling

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