Nitrogen Doped Porous Carbons Derived from Walnut Shell as an Oxygen Reduction Catalyst for Mg-Air Batteries

The present study proposes a nitrogen-doped carbon material with an improved pore structure, facilitating efficient mass transfer and offering abundant active sites for electrocatalytic oxygen reduction. The present study successfully synthesized a series of N-doped carbons with three-dimensional interpenetrating layered porous structures by utilizing NaOH as a pore-forming agent during the carbonization process of biomass refuse. The half-wave potential of NWSC0.6 (N-doped walnut shells carbon) (E1/2 = 0.849 V) exceeds that of 20 wt% Pt/C by 9 mV. The catalyst exhibited exceptional catalytic ..read more


Kun Liu, Fanqing Ji, Guangyue Zhou, Jing Wang, Haoyi Li, Xiuxian Quan, Angli Zhang, Kaiqi Liu, Xucheng Fu and Xiaowu Liu

Mercury Contamination in Food: Sources, Hazards, Prevention and Detection Techniques for Mercury Speciation Analysis: A Review

Mercury is a highly toxic element that threatens both human health and the environment, with its toxicity varying by species, which possesses bioaccumulation and persistence. Common exposure sources include farm produce, aquatic products, and other foods. Therefore, understanding the mercury contamination in food for ensuring food safety, preventing mercury poisoning, and safeguarding human health and the ecological environment. This review summarizes mercury's presence in food, its sources, health hazards, current pollution status, limit standards and preventive and control measures. It also ..read more


Zhiqiang Chen and Ye He

Structure–Functional Relationships of Ni/Zeolite Composites in CO2 Reforming of Methane

This study investigates the comparative structure–function relationships of Ni/zeolite composites, Ni–X (X = CaA, NaX, CaX, NaY, ZSM-5, MOR, and clinoptilolite (CL)), for syngas production via dry reforming of methane (DRM). Particular attention is paid to the influence of zeolite framework topology, cationic composition, textural characteristics, and surface acid–base properties on catalytic performance under identical experimental conditions. Characterization of a representative sample by XRD and SEM/EDX demonstrated the successful incorporation of nickel into the composite while maintainin..read more


Jafarova Sevil Tagi

Performance Evaluation and Mechanism Exploration of Heavy Metal Ion Adsorption by Four Carbon Materials

In order to develop a high-efficiency adsorbent for removing trace heavy metal ions in aqueous solution, this study systematically evaluated the adsorption performance of four carbon materials. The study investigates how morphology, surface functional groups, and charge characteristics affect adsorption performance, and elucidates the dominant adsorption mechanism via modeling and thermodynamic analysis. Activated carbon and its nitrogen-modified derivative show excellent Co2+ adsorption ability adsorption performance with a maximum of 80%. The adsorption behavior conforms to monolayer adsorpt..read more


Songhui Liu, Ting Wang, Weize Sun, Jingle Chen, Huali Chen

A Stability-Indicating RP-HPLC Method for Erlotinib: Gamma Irradiation-Induced and ICH-Guided Stress Degradation Studies

Erlotinib (OSI-774), an FDA-approved epidermal growth factor receptor (EGFR) inhibitor, is extensively used in treating non-small cell lung cancer (NSCLC) and other malignancies. This study explores erlotinib's chemical instability under various stress conditions, including hydrolytic, oxidation, thermal, and photolytic stress, as well as its environmental impact due to drug residues in effluents. A stability-indicating reverse-phase liquid chromatography (RP-LC) method was developed to quantify erlotinib and its degradation products in pharmaceutical formulations. Gamma irradiation, an advanc..read more


Ayşe Özdemir, Senem Şanlı, Meryem Cansu Şahin

Metals (Ni and Fe) Doped Si, C, BN, AlP Nanotubes and Nanocages as Catalysts for SO2 Hydro-Desulfurization to Create the H2S

In this work, potential of Ni-Si51, Ni-C51, Fe-C71, Fe-B35N35, Ni-Al25P25, nanotubes as catalysts for SO2 hydro-desulfurization are examined to propose the new catalysts with high performances. Results shown that the Ni and Fe adoption on nanocages and nanotubes is improved the catalytic activity of C, Si, BN, AlP nanotubes and nanocages, significantly. The Ni and Fe atoms dues to high adsorption energy values are cites to join the SO2. Results shown that Ni-Si51, Ni-C51, Fe-C71, Fe-B35N35, Ni-Al25P25, nanotubes as catalysts for SO2 hydro-desulfurization have higher catalytic activity than var..read more


Xiao Shao, Farag M. A. Altalbawy, Nawfal Yousif Jamil, Ahmed Salih Sahib Zahraa Saad Abdulali, Mariem Alwan, Mahmood Jawad, Hiba Mushtaq, Fadhil F. Sead, Aseel Smerat and Wang Baoo

Synthesis, Mechanistic Insights, Kinetics and Thermodynamic Studies of the Bentonite-Guar gum Hybrids for Adsorption of Cationic and Anionic Dyes

The widespread discharge of carcinogenic dyes from industrial effluents poses serious health and environmental hazards, necessitating efficient remediation strategies. In this study, hybrids (3a-h) of modified sodium bentonite, guar gum and chitosan were synthesized and employed for organic dyes adsorption. The confirmation of prepared hybrids was accomplished by FTIR, XRD, SEM and EDX analysis. The thermochemical treatment of bentonites resulted in improved crystalline structure that was more pronounced in hybrids. The surface roughness and porosity was increased in prepared hybrids and more ..read more


Anam Ilyas, Amna Ashfaq, Nayab Siddique, Ambreen Ghani, Manahal Furqan and Erum Akbar Hussain

Gamma and UV Radiation-Based Advanced Oxidation Processes for Degradation of Anti-Cancer Drug Daunorubicin: Environmental Toxicity and Wastewater Treatment Implications

Pharmaceutical contamination poses a significant threat to ecosystems and advanced oxidation processes (AOPs) offer promising solutions. This study investigates the innovative degradation of daunorubicin, an anticancer drug, utilizing a novel combination of UV and gamma (γ) radiation with H₂O₂ (1 µmol L-1). This strategy significantly enhances degradation efficiency compared to conventional advanced oxidation processes (AOPs). The results demonstrated that while UV/H₂O₂ achieved 89.89% degradation of a 5 mg L-1 daunorubicin solution in 90 minutes, the gamma/H₂O₂ system achieved complete degrad..read more


Muhammad Imran Kanjal, Majid Muneer, Saif Ullah, Nighat Zia ud Den, Muhammad Wasim Afzal, Wissem Mnif, Zaina Algarni, Munawar Iqbal, Arif Nazir, Lotfi Mouni