A novel and recyclable silica gel-modified biochar to remove cadmium from wastewater: Model application and mechanism exploration DOI Creative Commons

Xirui Kang,

Mingjie Sun,

Na Geng

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 281, P. 116608 - 116608

Published: June 19, 2024

Water pollution caused by heavy metals is a major environmental problem, threatening water production, food safety, and human health. Cadmium (Cd) particularly serious because of food-chain biomagnification at toxic concentrations. Modified biochar promising for metal removal; however, efficient adsorbents Cd removal are lacking. In the present study, novel adsorbent, silica gel-modified (SGB), was prepared applied to treat sewage polluted Cd. Through batch adsorption experiments, it known that SGB possessed outstanding ability recycleability. Furthermore, behavior mechanisms were analyzed application kinetic isotherm models. The maximum Cd2+ capacity 38.08 mg g−1, after five recycling processes, rate still 86.89 %. When pH solution 7.0, showed strongest (29.06 g−1). competitive ions existed, also had high efficiency, although effect Pb2+ greater than those Cu2+ Zn2+, indicating applicable complex water. Additionally, main electrostatic interactions, π-π complexation, co-precipitation. These results can effectively Cd-contaminated wastewater as new adsorbent.

Language: Английский

Fe-doped CdS with sulfonated g-C3N4 in a heterojunction designed for improved biomedical and photocatalytic potentials DOI

Afsah Iftikhar,

Mohsin Javed,

Sana Mansoor

et al.

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 162, P. 112205 - 112205

Published: Feb. 15, 2024

Language: Английский

Citations

7
Tailoring graphene-oxide and reduced-graphene-oxide with NaNO3 and CaCl2 catalysts with enhanced photo-catalytic degradation of methylene blue dye DOI Creative Commons

Mansi Chitkara,

Nitin Goyal,

Aashish Kumar

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(13), P. 8769 - 8778

Published: Jan. 1, 2024

This study employed various experimental techniques to produce graphene oxide (GO) under different conditions, such as the inclusion or exclusion of NaNO 3 , and reduced (RGO) with without catalyst CaCl 2 .

Language: Английский

Citations

6
Novel and Facile Synthesis of Carbon Quantum Dots from Chicken Feathers and Their Application as a Photocatalyst to Degrade Methylene Blue Dye DOI Creative Commons
Muhammad Imran Din, Mahmood Ahmed, Muhammad Ahmad

et al.

Journal of Chemistry, Journal Year: 2023, Volume and Issue: 2023, P. 1 - 11

Published: March 11, 2023

Methylene blue (MB) is a most commonly used synthetic dye in the textile industry. It an extremely carcinogenic phenothiazine derivative and therefore needs to be removed from water bodies. In present study, single-step hydrothermal novel synthesis of carbon quantum dots (CQDs) extracted biomass chicken feathers has been performed, synthesized CQDs were applied remove MB aqueous samples. A number techniques such as ultraviolet-visible (UV-Vis) spectroscopy, Fourier-transform infrared (FTIR) scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) characterize samples for conformity purposes. SEM XRD analysis showed that are highly crystalline have spherical structures with average particle diameter 35 nm. presence 0.2 g CQDs, degraded drastically under sunlight. The rate degradation was studied by determining absorbance sample time relevant untreated sample. % achieved during first 60 min approximately 92% which increased minimally value only 95% after 100 time. ease at low cost contributes hugely their utilizations efficient photocatalyst pollutants. opted approach synthesize cost-effective eco-friendly demonstrates excellent potential

Language: Английский

Citations

15
Synthesis of Cd(OH)2-CdO Nanoparticles Using Veldt Grape Leaf Extract: Enhanced Dye Degradation and Microbial Resistance DOI

P. Rajaram,

Y. Samson,

Ambrose Rejo Jeice

et al.

BioNanoScience, Journal Year: 2023, Volume and Issue: 13(3), P. 1289 - 1307

Published: July 18, 2023

Language: Английский

Citations

15
A comparative study of green and chemical approaches for photocatalytic activity of novel hybrid bismuth magnesium ferrites (BiMgFe2O4) nanoparticles for Acid Red-88 dye degradation DOI Creative Commons

D. M. Tejashwini,

H.V. Harini,

H.P. Nagaswarupa

et al.

Results in Chemistry, Journal Year: 2023, Volume and Issue: 7, P. 101267 - 101267

Published: Dec. 15, 2023

Uncontrolled release of several dangerous pollutants had negatively impacted the environment causing water pollution and retarded plant growth. Recently, nanoferrites utilized as photocatalyst to eliminate pollutants. The benefits hybrid have significantly improved separating charge transfer capabilities. In present investigation novel bismuth magnesium ferrites (BMF - BiMgFe2O4) are synthesized via conventional solution combustion method using green chemical approach. particles confirmed by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM),Energy disperse analysis (EDX), UV-DRS (UV diffuse reflectance spectroscopy). observed crystalline size for nanoparticles approach is 25.15 nm 18.55 respectively. Analyzed band gap 2.89 eV 1.98 that employing technique. outcomes obtained from studies verified with capable applications in photocatalytic degradation. application BiMgFe2O4 catalyst decolourisation acid red 88 (AR-88) dyes under visible irradiation at room temperature exhibits superior activity 74.22% 85.27% 120 minutes It's significant environmental impact whole procedure has been assessed regard development gram plants utilizing treated wastewater exhibiting effective overall feasibility research presented here provides opportunity apply chemically BMF acts practical related treatment other daily life. Using degraded yields productive

Language: Английский

Citations

15
Bio-synthesis of Lead Oxide Nanoparticles Using Chinese Mahogany Plant Extract (CMPE@LO) for Photocatalytic and Antimicrobial Activities DOI
Manita Thakur, Arush Sharma, Ajay Kumar

et al.

BioNanoScience, Journal Year: 2023, Volume and Issue: 13(4), P. 1896 - 1910

Published: July 19, 2023

Language: Английский

Citations

13
Green synthesis of tellurium‐doped SnO2 nanoparticles with sulfurized g‐C3N4: Insights into methylene blue photodegradation and antibacterial capability DOI

Misbah Umar,

Humayun Ajaz,

Mohsin Javed

et al.

Luminescence, Journal Year: 2024, Volume and Issue: 39(2)

Published: Feb. 1, 2024

Abstract The construction of SnO 2 nanoparticles (NPs), specifically Te‐doped NPs, using a simple and economical co‐precipitation technique has been thoroughly described in this work. NH 3 served as the reducing agent procedure, whilst polyethylene glycol capping agent. primary goals our work were to investigate physicochemical properties synthesized NPs assess their potential use antibacterial agents photocatalysts. Scanning electron microscopy–energy dispersive X‐ray, ultraviolet light, Fourier transform infrared spectroscopy, X‐ray diffraction (XRD), other analytical techniques used analyze NPs. Based on full width at half maximum most noticeable peaks XRD spectrum, Debye–Scherrer equation was calculate crystallite sizes, which indicated presence single tetragonal phase. Particularly noteworthy exceptional photocatalytic activity graphene‐assisted achieving an impressive decomposition efficiency up 98% photo‐oxidation methylene blue. Furthermore, investigation delved into attributes against Escherichia coli Staphylococcus aureus , demonstrating inhibitory effects both bacteria strains. This suggests applications for these various environmental medical contexts.

Language: Английский

Citations

5
ZnO and C/ZnO Catalysts Synthesized via Plant Mediated Extracts for Photodegradation of Crystal Violet and Methyl Orange Dyes DOI Creative Commons

Mervat Farag,

Shady M. El-Dafrawy, Shawky M. Hassan

et al.

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2023, Volume and Issue: 34(3), P. 930 - 943

Published: Sept. 30, 2023

Abstract In this study, aqueous Cystoseira crinite extract was used to successfully biosynthesize ZnO and C-doped samples. X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive (EDX), FTIR, UV–vis techniques were characterize the biosynthesized XRD technique confirmed crystalline structure of ZnO. EDX formation SEM analysis revealed spherical shape samples with agglomeration. FTIR spectra showed that phenolic compounds protein molecules are present in extract. The photocatalytic activity prepared photocatalysts investigated using crystal violet (CV) as a model cationic dyes methyl orange (MO) anionic dyes. 5%C-doped calcined at 500 °C an optimum efficiency 92.7% 87.8% for CV MO dyes, respectively. improved could be attributed narrower optical band gap C doped than pure follows first-order kinetics high correlation coefficient values. Graphical

Language: Английский

Citations

12
Mesoporous Manganese Dioxide-Coated Upconversion Nanoparticles for Smart Photoluminescence and Drug Delivery DOI
Zheng Zhang, Dan Sui,

Danlu Yu

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(7), P. 3104 - 3113

Published: Feb. 9, 2024

A novel multifunctional nanoplatform (UCNP@MnO2 NPs) is proposed by combining the upconversion luminescence with glutathione (GSH)-responsive performance of mesoporous MnO2. The active core–shell nanoparticles (UCNPs) were prepared high-temperature pyrolysis and seed epitaxial growth methods. Subsequently, UCNPs modified further coated a MnO2 shell. Moreover, UCNP@MnO2 NPs supported various forms structural characterization As an effective photoluminescence nanoplatform, relying on fluorescence UCNP, shell was designed as quencher served GSH/H2O2 recognizer. results indicate that NP has excellent quenching recovery performance. Additionally, conducive to drug loading release nanocarrier for delivery. result, demonstrated satisfying drug-loading efficiency (ca. 55.98%) GSH-responsive controlled release. cumulatively released up ca. 56.49% at GSH concentrations 10 mM within 24 h. Furthermore, exhibited degradation Overall, this study suggests smart delivery, which offers unique insights guidance fluorometric imaging, sensing, treatment.

Language: Английский

Citations

4
Positively-charged modification of silver peroxide nanoparticles with MgO nanoparticles as low-cost and highly effective bactericidal agents for rapid sterilization DOI

Wenning Shen,

Yuwen Wang,

Yanfeng Ge

et al.

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 113943 - 113943

Published: Jan. 1, 2025

Language: Английский

Citations

0