☆ 4.7 Article

Microwave-assisted synthesis of amphoteric fluorescence carbon quantum dots and their chromium adsorption from aqueous solution

SCIENTIFIC REPORTS (2023)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Article Biochemical Research Methods

Eco-friendly Synthesis of Carbon Quantum Dots as an Effective Adsorbent

Hebat-Allah S. Tohamy et al.

Summary: Fluorescent carbon quantum dots (CQDs) were prepared through an economical and environmentally friendly one-step method with the assistance of microwave heating of urea with bagasse (SCB), cellulose (C), or carboxymethyl cellulose (CMC). The synthesized CQDs exhibited small size, strong UV absorption, and excitation wavelength-dependent fluorescence. The CQDs showed high efficiency in adsorbing Pb(II) from aqueous solutions, making them excellent materials for applications in wastewater pollution detection, adsorption, and chemical sensing. The Langmuir model was found to be the most suitable for describing the adsorption isotherms of the CQDs.

JOURNAL OF FLUORESCENCE (2023)

添加到收藏夹

Article Materials Science, Multidisciplinary

Boosting the adsorption capacity and photocatalytic activity of activated carbon by graphene quantum dots and titanium dioxide

Hebat-Allah S. Tohamy et al.

Summary: This study aims to enhance the adsorption and photocatalytic efficiency of activated carbon (AC) by formulating new composites with graphene quantum dots (GQDs) and embedding titanium dioxide (TiO2). The results demonstrate that GQDs-TiO2/ AC shows great potential in removing MB dye through adsorption and photo-degradation processes.

DIAMOND AND RELATED MATERIALS (2023)

添加到收藏夹

Article Polymer Science

Development of graphene oxide-based styrene/acrylic elastomeric disks from sugarcane bagasse as adsorbents of Nickel (II) ions

Hebat-Allah S. Tohamy et al.

Summary: In this study, graphene oxide-based styrene/acrylic elastomeric disks were prepared and used as adsorbents for Ni(II) from aqueous media. The highest removal percentages of Ni(II) were achieved at specific weight ratios for a certain duration.

JOURNAL OF POLYMER RESEARCH (2022)

添加到收藏夹

Review Multidisciplinary Sciences

Heavy metal ion detection using green precursor derived carbon dots

Simei Darinel Torres Landa et al.

Summary: This review presents the recent progress in the use of carbon dots for environmental remediation, focusing on the detection of heavy metal ions using green precursors. It includes methods for synthesis, comparison of different carbon dots, and provides a general guide for using environmentally friendly carbon dots to detect pollutants.

ISCIENCE (2022)

添加到收藏夹

Article Engineering, Environmental

Adsorption Kinetics of Edamame Soybean Peel Activated Carbon in Reducing the Level of Phosphate

Iva Rustanti Eri et al.

Summary: This study investigated the adsorption kinetics and capacity of activated carbon from edamame soybean peel in reducing phosphate levels. The results showed that the maximum adsorption capacity occurred at a 6 mg/L adsorbate concentration and 6 hours of stirring time. The Langmuir isotherm and pseudo-second-order adsorption kinetics model validated these results.

JOURNAL OF ECOLOGICAL ENGINEERING (2022)

添加到收藏夹

Article Materials Science, Multidisciplinary

A Flexible, Low-Cost, Disposable Non-Enzymatic Electrochemical Sensor Based on MnO2/Cellulose Nanostructure

Hebat-Allah S. Tohamy et al.

Summary: A new class of hybrid materials consisting of cellulose nanowhiskers and manganese oxide nanoparticles was synthesized and utilized as a sensor platform with high and fast electrochemical responses. The cellulose and manganese oxide nanostructures were successfully formed and uniformly distributed, as confirmed by various characterization methods. The hybrid materials exhibited excellent electrocatalytic properties and showed promising applications in biosensors and non-enzymatic sensors fields.

ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Preparation of hydroxyethyl cellulose/mangiferin edible films and their antimicrobial properties

Hebat-Allah S. Tohamy et al.

Summary: In this study, antimicrobial films were prepared using hydroxyethyl cellulose (HEC) and mangiferin powder. The antimicrobial ability of the films was enhanced by adding different concentrations of mangiferin powder. The optimal concentration was found to be 10%.

BMC CHEMISTRY (2022)

添加到收藏夹

Article Environmental Sciences

Carbon dots combined with masking agent for high selectivity detection of Cr(VI) to overcome interference associated challenges

Shengliang Zhao et al.

Summary: The determination of hexavalent chromium (Cr(VI)) is crucial for public health due to its wide range of sources and high toxicity. This study presents a novel sensing system composed of strong emitting carbon dots (CE-CDs) and a specific masking agent for highly selective detection of Cr(VI). The optimal detection conditions were found to be pH 4-10, reaction time 180 s, and CE-CDs concentration 18 mg/L. The method demonstrated a linear range up to 500 μm and a low detection limit of 23 nM. The interference of mercury (Hg(II)) was effectively eliminated using DMPS as a masking agent. Furthermore, this method showed applicability for trace detection of Cr(VI) in colored leather with complex matrix.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2022)

添加到收藏夹

Article Green & Sustainable Science & Technology

Development of Magnetite/Graphene Oxide Hydrogels from Agricultural Wastes for Water Treatment

Hebat-Allah S. Tohamy et al.

Summary: A novel magnetic hydrogel loaded with graphene oxide (GO) was developed in this study, and its structure and adsorption properties were investigated, demonstrating its potential as a green and cheap adsorbent.

JOURNAL OF RENEWABLE MATERIALS (2022)

添加到收藏夹

Article Engineering, Environmental

Selective adsorption and ultrafast fluorescent detection of Cr(VI) in wastewater using neodymium doped polyaniline supported layered double hydroxide nanocomposite

Ajaz Ahmad Wani et al.

Summary: Neodymium-doped polyaniline supported Zn-Al layered double hydroxide (PANI@Nd-LDH) nanocomposite was prepared through ex-situ oxidative polymerization process. The nanocomposite exhibited selective fluorescence detection and adsorption of hexavalent chromium Cr(VI) with high removal capacity and sensitivity, showing potential as an excellent environmental probe.

JOURNAL OF HAZARDOUS MATERIALS (2021)

添加到收藏夹

Article Engineering, Chemical

Kinetics, Isotherms, and Thermodynamic Modeling of the Adsorption of Phosphates from Model Wastewater Using Recycled Brick Waste

Uduakobong A. Edet et al.

PROCESSES (2020)

添加到收藏夹

Article Chemistry, Multidisciplinary

Bioinspired Carbon Quantum Dots: An Antibiofilm Agents

Asiya F. Shaikh et al.

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY (2019)

添加到收藏夹

Article Water Resources

Kinetic study on adsorption of Cr(VI), Ni(II), Cd(II) and Pb(II) ions from aqueous solutions using activated carbon prepared from Cucumis melo peel

M. Manjuladevi et al.

APPLIED WATER SCIENCE (2018)

添加到收藏夹

Article Chemistry, Physical

Carbon dots modified mesoporous organosilica as an adsorbent for the removal of 2,4-dichlorophenol and heavy metal ions

Lingzhi Wang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2015)

添加到收藏夹

Article Engineering, Multidisciplinary

Application of Casuarina equisetifolia needle for the removal of methylene blue and malachite green dyes from aqueous solution

Muhammad Khairud Dahri et al.

ALEXANDRIA ENGINEERING JOURNAL (2015)

添加到收藏夹

Article Chemistry, Multidisciplinary

Deep Ultraviolet Photoluminescence of Water-Soluble Self-Passivated Graphene Quantum Dots

Libin Tang et al.

ACS NANO (2012)

添加到收藏夹

Review Chemistry, Multidisciplinary

Polymeric Janus Particles

Frederik Wurm et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2009)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.