Enhanced elimination of chromium (VI) ions from wastewater with silica-mixed magnetic nanomaterial: Isotherm and kinetic studies DOI Creative Commons

B. Ramesh,

V.C. Deivayanai,

P.R. Yaashikaa

et al.

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 25, 2023

Abstract Disposing industrial wastewater and by-products from numerous segments has recently increased its demands in the ecological, methodological, economic, technological, community spheres where dispersed water isn’t treated before release. Rice husk is a waste agro field product rice milling, an abundant source of silica many other minerals. ash generated by combustion deep burning out techniques at 600℃. To make 100% pure xerogels RHA, process involving alkaline separation accompanied precipitation with acid was performed. Silica-coated Fe 3 O 4 magnetic nanoparticles were produced via microwave practice used for complete elimination Cr(IV) ions samples that lab prepared solutions. The synthesized characterized using Scanning electron microscopy (SEM) showing structure formed particles, X-ray diffraction (XRD) owns amorphous nature, Energy-dispersive (EDX) spectroscopy peaks 45.36%, Ferrous 49.07%, oxides traces. Fourier- transform infrared (FT-IR), Dynamic Light Scattering (DLS), Zeta Potential. Uniquely pH value, heat, exposure duration, dosage all have impact on target metal ion been studied Atomic Absorption Spectroscopy (AAS) to obtain optimum conditions. Langmuir isotherm seems be very greatest fit R 2 value 0.9791 q m 102.8 mg/g this study also great curve fitting pseudo-first-order model supports top physical adsorption.

Language: Английский

Magnetic adsorbents for removal of pharmaceuticals: A review of adsorption properties DOI Creative Commons
Тетяна Татарчук, L.M. Soltys, Wojciech Macyk

et al.

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 384, P. 122174 - 122174

Published: May 25, 2023

The global development of industry and agriculture around the world led to contamination various aquatic environments with pharmaceuticals. Even at low concentrations in water, these pollutants cause significant human health problems, adversely affect quality drinking have a detrimental effect on environment. uncontrolled release pharmaceuticals into ecosystems poses real threat all life Earth requires effective methods removal. Adsorption is one best most cost-effective ways clean wastewater from micropollutants. Magnetic adsorbents attract considerable attention due their outstanding magnetic properties, high surface reactivity, chemical stability, possibility modification functionalization. presence functional groups makes it possible increase adsorption efficiency. This article comprehensive review studies use nanoparticles composites for removal aqueous through adsorption. main paid two categories pharmaceuticals: antibiotics (tetracycline, ciprofloxacin, levofloxacin, etc.) nonsteroidal anti-inflammatory drugs (diclofenac, ibuprofen, etc.). concentration European waters provided. modes interaction between adsorbent (functionalized nanoparticles) adsorbate (pharmaceuticals) are discussed. analyzed mainly adsorbed electrostatic interactions, hydrogen bonds, π-π interaction, complexation, ion-exchange, etc. parameters (pH, contact time, temperature, concentration, dose) efficiency summarized. analysis shows that behavior strongly depends solution pH, initial pollutant. functionalized good potential media. perspectives problems applications been presented.

Language: Английский

Citations

94
Advancements in enzyme immobilization on magnetic nanomaterials: toward sustainable industrial applications DOI Creative Commons
Antônio Luthierre Gama Cavalcante, Dayana Nascimento Dari, Francisco Izaias da Silva Aires

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(25), P. 17946 - 17988

Published: Jan. 1, 2024

Enzymes are widely used in biofuels, food, and pharmaceuticals.

Language: Английский

Citations

36
Emerging trends and promising prospects in nanotechnology for improved remediation of wastewater contaminants: Present and future outlooks DOI

P. Thamarai,

R. Kamalesh,

A. Saravanan

et al.

Environmental Nanotechnology Monitoring & Management, Journal Year: 2024, Volume and Issue: 21, P. 100913 - 100913

Published: Jan. 8, 2024

Language: Английский

Citations

19
Rare earth and transition metal co-doped LaFeO3 perovskite and its CNTs reinforced nanohybrid for environmental remediation application DOI
Muhammad Sabir, Najla AlMasoud, Muhammad Ramzan

et al.

Ceramics International, Journal Year: 2023, Volume and Issue: 49(12), P. 20939 - 20950

Published: March 30, 2023

Language: Английский

Citations

18
Promoting a well-dispersion of MoO3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency DOI

N.M. Izzudin,

Aishah Abdul Jalil, Mohamad Wijayanuddin Ali

et al.

Chemosphere, Journal Year: 2022, Volume and Issue: 308, P. 136456 - 136456

Published: Sept. 20, 2022

Language: Английский

Citations

20
Investigating adsorption/photocatalysis of organic contaminants by Fe3O4–GO, Fe3O4–C3N4, and Fe3O4–GO-C3N4 heterojunctions DOI Creative Commons
J.M.P. Silva, N. F. Andrade Neto, Anderson Barbosa Lima

et al.

Chemistry of Inorganic Materials, Journal Year: 2023, Volume and Issue: 1, P. 100014 - 100014

Published: Sept. 15, 2023

Water pollution by contaminants such as dyes and drugs is a serious environmental problem. Currently, the objective to develop materials that are effective in removing these contaminants. Graphene oxide (GO) graphitic carbon nitride (g-C3N4) have been used adsorbents for efficient removal of organic pollutants useful improve photoactivity iron (Fe3O4). In this work, Fe3O4, Fe3O4–C3N4, Fe3O4–GO, Fe3O4–GO–C3N4 powders were structurally characterized X-ray diffraction technique morphologically field emission scanning electron microscopy technique. Optical properties studied using UV–visible spectroscopy VSM analysis was performed determine remanence magnetization. The adsorption photocatalysis tested against methylene blue (MB), methyl orange (MO) ketoprofen. XRD patterns Fe3O4 heterojunctions showed formed single phase. As morphological observation, g-C3N4 nanoparticles without defined morphology, while GO sheets. analysis, all samples show ferromagnetic behavior. bandgap 2.07, 2.21, 2.14, 2.19 eV, respectively. Therefore, absorb visible radiation waves greater than 560 nm. Heterojunctions containing completely adsorb MB MO dyes, being necessary extend activity time when concentration increases or put together. Both Fe3O4–GO photocatalytic toward dye. All manuscript good capacity anti-inflammatory drug

Language: Английский

Citations

10
Green biosourced composite for efficient reactive dye decontamination: immobilized Gibberella fujikuroi on maize tassel biomatrix DOI Creative Commons
Sema Çelik,

Selen Kurtulus Tas,

Fatih Sayın

et al.

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(17), P. 25836 - 25848

Published: March 15, 2024

Abstract Biosorptive treatment with microbial biomass is regarded as an environmentally friendly and effective way to reduce dye contamination in contaminated aquatic environments. Immobilizing cells for use this process can significantly improve their effectiveness biosorbents the water process. The current investigation searches a sustainable approach decolorization by employing green biocomposite material sorbent system (ZM@GFC) created immobilizing fungal ( Gibberella fujikuroi ) on maize tassel tissues efficiently remove Reactive Yellow 2 (RY2) from sources. Batch dynamic flow tests were performed evaluate biodecolorization properties of newly immobilized biomaterial well effects several essential operating conditions factors sorption behavior. Biosorption yields 95.7% 90.0% batch modes achieved experimental decolorization. biosorption RY2 ZM@GFC occurred fast equilibrium within 60 min. pseudo-second-order kinetic model elucidated onto ZM@GFC. Langmuir provided more accurate representation results than Freundlich model. At same time, Redlich-Peterson isotherm demonstrated best level agreement data. These findings indicate that mechanism predominantly involved formation monolayer covering energy surface uniform. breakthrough capacity at exhaustion time was 537.32 mg g −1 . predicted cost generating anticipated be 61.03 USD/kg. investigations safe disposal did not generate any secondary pollution. In conclusion, using tissue agent offers possible method removing reactive azo pollutants medium both economical benign.

Language: Английский

Citations

3
An alternative synthesis of magnetic biochar from green coconut husks and its application for simultaneous and individual removal of caffeine and salicylic acid from aqueous solution DOI
Bruno Salarini Peixoto, Larissa Silva de Oliveira Mota,

Isac Marinho Dias

et al.

Journal of environmental chemical engineering, Journal Year: 2023, Volume and Issue: 11(5), P. 110835 - 110835

Published: Aug. 23, 2023

Language: Английский

Citations

6
Is Nano-Management a Sustainable Solution for Mitigation of Climate Change under the Water-Energy-Food Nexus? DOI Open Access

Daniella Sári,

Aya Ferroudj,

Semsey Dávid

et al.

Egyptian Journal of Soil Science, Journal Year: 2023, Volume and Issue: 64(1), P. 0 - 0

Published: Oct. 13, 2023

Natural resources are considered the main sources for our life, which include mainly of water, energy and food. Along with explosion global population, these previous under a serious threat that enforce all nations to double productivity fresh clean energy, healthy food by more than 50-70%. These increases not so easy achieve particularly climate change. Several approaches proposed mitigate change Water-Energy-Food (WEF) nexus especially applying nanomaterials (NMs). This review describes evaluation implementation NMs seeks remedy problems analyzing literature WEF nexus. The evidence associated is weak inconclusive. What yet understood relative importance various factors might support efforts it environmental issues. Much available on deals question what direct indirect impacts resources, but remains unclear whether applied true representation? single most striking observation emerge from data comparison was several studies confirmed certain doses. Thus far, number explored relationships between after needed. In view has been mentioned one may suppose crucial conserving nanotoxicity should be in further studies.

Language: Английский

Citations

6
Comprehensive investigation of Ni-rich PtNi alloy nanoparticles: structural, magnetic, and catalytic properties for efficient alkaline water electrolysis DOI
Abd Elouahab Noua, Doğan Kaya, Faruk Karadağ

et al.

Journal of Nanoparticle Research, Journal Year: 2023, Volume and Issue: 26(1)

Published: Dec. 28, 2023

Language: Английский

Citations

4