In this paper, the precipitation method was used to synthesize CuO nanoparticles (NPs). Sodium dodecyl sulfate (SDS) and Cetyltrimethylammonium Bromide (CTAB) were used as a surfactant to modify the surface morphology of the CuO NPs. To investigate the characteristics of the CuO NPs, X-ray diffraction technique (XRD), X-Ray photoelectron spectrometry (XPS), Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR) and Energy dispersive X-ray analysis (EDAX) were used. The catalytic activities of as prepared CuO NPs were evaluated by monitoring reduction of MB dye in the presence of NaBH4 as reducing agent. Effect of catalyst mass, concentration of NaBH4 and concentration of MB dye were investigated. The best results for the reduction of MB dye were obtained by the CuO–SDS catalyst. The results showed that 10 min of reaction time was sufficient to have the total degradation of MB dye. The reuse of the CuO–SDS catalyst for five cycles has shown interesting results via the reduction of MB dye without losing its effectiveness.

Catalytic Reduction of Methylene Blue Dye by Copper Oxide Nanoparticles

Environmental contamination brought on by the discharge of wastewater from textile industries is a growing concern on a global scale. Textile industries produce a huge quantity of effluents containing a myriad of chemicals, mostly dyes. The discharge of such effluents into the aquatic environment results in pollution that adversely affects aquatic organisms. Synthetic dyes are complex aromatic chemical structures with carcinogenic and mutagenic properties in addition to high biological oxygen demand (BOD) and chemical oxygen demand (COD). This complex aromatic structure resists degradation by conventional techniques. The bioremediation approach is the biological clean-up of toxic contaminants from industrial effluents. Biological treatment methods produce less or no sludge and are cost-effective, efficient, and eco-friendly. Microorganisms, mostly microalgae and bacteria, and, in some instances, fungi, yeast, and enzymes decolorize textile dye compounds into simple, non-toxic chemical compounds. Following a thorough review of the literature, we are persuaded that microalgae and bacteria might be one of the potential decolorizing agents substituting for most other biological organisms in wastewater treatment. This article presents extensive literature information on textile dyes, their classification, the toxicity of dyes, and the bioremediation of toxic textile industry effluent utilizing microalgae and bacteria. Additionally, it combines data on factors influencing textile dye bioremediation, and a few suggestions for future research are proposed.

/pdf/impact-of-textile-dyes-on-human-health-and-bioremediation-of-3f0nj076.pdf

Impact of textile dyes on human health and bioremediation of textile industry effluent using microorganisms: current status and future prospects.

Water pollution is a threatening environmental concern these days, which requires serious attention Water is contaminated by the heavy discharge of industrial effluents containing organic wastes Herein, this research work focused on the demand for overcoming water pollution utilizing clean and renewable energy (solar light irradiations) sources for photocatalytic degradation of Congo red (CR) dye with the help of ternary metal selenide-chitosan microspheres (ZBiSe-CM) First, zinc–bismuth-selenide nanoparticles (ZBiSe-NPs) were successfully synthesized via the solvothermal process and then supported with chitosan to prevent leaching of the catalyst SEM micrographs showed the average size of newly synthesized nanocomposites catalysts was 309 nm The average size of the ZBiSe-CM microspheres was calculated as 812 um with a spherical shape and a porous surface The presence of prominent peaks in the EDX spectrum for bismuth, selenium, and zinc confirmed the synthesis of the nanoparticles XRD analysis demonstrated the calculated crystallite size of ZBiSe-NPs was 2704 nm The photocatalytic behavior of the catalyst was studied at optimized experimental conditions The ZBiSe-NPs showed high photocatalytic degradation efficiency (up to 9963%) for 40 ppm concentration of CR at catalyst dosage 0225 g, pH 80, and temperature 36–38 °C for 2 h of solar light illumination Photodegradation of CR dye in the presence of ZBiSe-CM follows pseudo-first-order kinetics and the ZBiSe-CM degraded CR dye in five consecutive cycles with high decontamination efficiency The newly synthesized ternary metal selenide-chitosan microspheres could be used for the decontamination of dyes from industrial wastewater

Degradation of Congo red dye using ternary metal selenide-chitosan microspheres as robust and reusable catalysts

Hydrogels have been employed for water purification applications, but their performance and strength are unsatisfactory for widespread adoption. Recently, hydrogel nanocomposites have been proposed to resolve the inherent challenges faced by hydrogels for water treatment. This review comprehensively analyzes hydrogel nanocomposites for water treatment using adsorbent and photocatalysis techniques. The structure, classification, and tunable synthesis methods of hydrogels are explained. Further, how hydrogels can be incorporated with functional nanoparticles (NPs) and can be used as templates/precursors for developing advanced 3D architectures, including the formation of hydrogel nanocomposite beads and 3D printing objects are discussed. Finally, the structure‐property relationships of hydrogel nanocomposites are critically reviewed by considering introductory gelation chemistry, such as swelling characteristics, mechanical properties, stimuli‐responsiveness, and ionic/electronic conduction. The extensive cross‐linking of polymer chains with NPs offers high mass/charge transport, high surface areas, and enhanced polymer‐water interactions to achieve high‐performing adsorbents and photocatalysts. Several motivating examples of emerging NP‐containing hydrogel nanocomposites for use in adsorbents and photocatalysis have been discussed. Such efforts validated the excellent technological potential held by hydrogel nanocomposites for water purification applications. Finally, future directions of hydrogel nanocomposites for sustainable water treatment are proposed.

https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/admi.202201375

Hydrogel Nanocomposite Adsorbents and Photocatalysts for Sustainable Water Purification

Gold nanomaterials – The golden approach from synthesis to applications

Catalytic potential of cobalt oxide and agar nanocomposite hydrogel for the chemical reduction of organic pollutants.

Adopting a green method for the synthesis of gold nanoparticles on cotton cloth for antimicrobial and environmental applications

In this study, silver–nickel oxide/calcium alginate (Ag@NiO/Alg) hydrogel beads were synthesized by incorporating the nanomaterial into the polymer solution followed by their extrusion from a syringe to coagulating solution for crosslinking. The Ag@NiO/Alg beads formed through this procedure were characterized by different instrumental techniques. The catalytic efficiency of Ag@NiO/Alg was evaluated for the reduction of rhodamine B (RhB) and methyl orange (MO), in the presence of sodium borohydride. After applying various kinetic order equations to the experimental data, the reactions were found to follow pseudo-first order kinetics using the Ag@NiO/Alg catalyst. The apparent rate constant (kapp) was determined as 0.33358 min−1 and 0.20882 min−1 for the catalytic reduction of RhB and MO, respectively. Furthermore, reduction reactions were studied at varying dye concentration and catalyst dosages. The recovered catalyst was reused up to five cycles without significant drop in the activity.

/pdf/synthesis-and-catalytic-evaluation-of-silver-nickel-oxide-xils6jvg8v.pdf

Synthesis and Catalytic Evaluation of Silver@nickel Oxide and Alginate Biopolymer Nanocomposite Hydrogel Beads

Nickel oxide and carboxymethyl cellulose composite beads as catalyst for the pollutant degradation

Influence of urea/glucose on the mixed micellization behavior of amitriptyline hydrochloride and 1-hexadecyl-3-methylimidazolium chloride (ionic liquid) mixtures: an experimental and theoretical investigation

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Ashi Khalil

Author Tools

Chat about Author