We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Performance and Mechanism of Fe3O4 Loaded Biochar Activating Persulfate to Degrade Acid Orange 7
AI summary Read the abstract
Researchers developed an iron oxide-loaded biochar material that can activate persulfate to break down acid orange 7, a common industrial azo dye pollutant, in water. The modified biochar achieved high degradation rates through a combination of adsorption and advanced oxidation processes. The study demonstrates a potential low-cost approach for treating dye-contaminated wastewater using engineered biochar materials.
Azo dye wastewater is a common type of organic wastewater that often presents a significant challenge due to its gloomy color, high toxicity, and resistance to degradation. The discharge of such wastewater directly into natural water bodies can pose a severe threat to both ecological security and human health. Traditional biological treatment methods are often ineffective in treating industrial pollutants, but advanced oxidation technologies, such as persulfate (PS), offer unique advantages due to their strong oxidation ability and short reaction times. This study investigates the use of modified biochar (BC) material and catalyzed persulfate advanced oxidation technology to adsorb and separate acid orange 7 (AO7), a common industrial pollutant, from water and further oxidize and degrade it. Wood chips were used as biological templates to create an efficient, eco-friendly, and reusable adsorbent and catalytic material. In this paper, the adsorption effect of Fe3O4@BC on AO7 in water was compared, the adsorption kinetics and isotherm of Fe3O4@BC on different pollutants were studied, and the possible adsorption mechanism was proposed based on the relevant characterization. Adsorption kinetics describes the rate and quality of adsorption by studying the adsorption capacity in the adsorption process. Furthermore, the activated PS system was used to explore the degradation of AO7 at room temperature. First, the catalytic performance of Fe3O4@BC was evaluated by examining the amounts of PS and Fe3O4@BC, the initial pH, the ionic strength, and the reusability of Fe3O4@BC. Then, a possible degradation mechanism was proposed through electron paramagnetic resonance (EPR), free radical quenching experiment, and density functional theory (DFT) analysis. The results of this study suggest that modified biochar material and catalyzed persulfate advanced oxidation technology offer an effective and eco-friendly method for treating AO7 in wastewater.
More Papers Like This
Research Progress on the Degradation of Organic Pollutants in Water by Activated Persulfate Using Biochar-Loaded Nano Zero-Valent Iron
AI summary Read the abstract
This review summarizes research on using biochar loaded with nano zero-valent iron to activate persulfate for degrading organic pollutants in water. Researchers found that combining biochar's adsorption capacity with the catalytic activity of nano zero-valent iron produces a synergistic effect that enhances pollutant removal. The study highlights this approach as a promising technology for water treatment and environmental remediation.
Effective degradation of synthetic micropollutants and real textile wastewater via a visible light-activated persulfate system using novel spinach leaf-derived biochar
AI summary Read the abstract
Researchers created a novel biochar from spinach leaves and used it to activate persulfate for degrading methylene blue dye under visible light conditions. The system achieved over 83% degradation efficiency and showed promise for treating real textile wastewater, demonstrating a sustainable approach to removing organic pollutants from contaminated water.
Toward Sustainable Soil Remediation: Progress and Perspectives on Biochar-Activated Persulfate Oxidation
AI summary Read the abstract
This review surveys recent advances in sustainable soil remediation strategies, including approaches targeting plastic and microplastic contamination in agricultural and industrial soils. The authors evaluate biological, chemical, and physical methods for effectiveness, scalability, and environmental safety. The paper outlines key research gaps and offers a roadmap for developing remediation technologies that minimize secondary environmental harm.
Preparation of Fe3O4/C Composite Material from Red Mud for the Degradation of Acid Orange 7
AI summary Read the abstract
Despite its title referencing chemical degradation and composite materials, this paper studies a novel iron-carbon material made from industrial waste (red mud) for breaking down organic dye pollutants in water — not microplastic pollution. It examines catalytic performance for dye removal and is not relevant to microplastics or human health.
Biochar as a Catalyst in Persulfate Activation: A Sustainable Approach to Remove Pesticides from Water
AI summary Read the abstract
Hardwood and wheat straw biochar catalysts were tested for persulfate activation to degrade the pesticides lindane and β-endosulfan from water, with pyrolysis temperature, feedstock type, pH, and persulfate concentration all shown to significantly influence removal efficiency.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.