We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Activation of peroxymonosulfate by cow manure biochar@1T-MoS2 for enhancing degradation of dimethyl phthalate: Performance and mechanism
AI summary Read the abstract
Researchers developed a cow manure biochar-supported 1T-MoS2 catalyst that efficiently activates peroxymonosulfate to degrade the plasticizer dimethyl phthalate, achieving high removal rates through both radical and non-radical oxidation pathways.
Introduction: Dimethyl phthalate (DMP) which has been widely detected in water is neurotoxic to humans and should be effectively eliminated. Persulfate-based advanced oxidation processes are considered to be reliable methods aiming at emerging contaminants degradation, while an efficient catalyst is urgently needed for the activation of the reaction. As a typical 2D material, 1T-MoS 2 is expected to be applied to the activation of persulfate owing to its abundant active sites and excellent electrical conductivity. In practical applications, 1T-MoS 2 has the phenomenon of reunion which affects the exposure of its catalytic sites. Methods: Therefore, in this study, we used waste cow manure as a raw material to prepare biochar and achieved high exposure of 1T-MoS 2 activation sites by loading 1T-MoS 2 onto the surface of cow manure biochar through hydrothermal synthesis. The prepared composite catalytic material CMB@1T-MoS 2 was used to activate PMS for the degradation of DMP. Results: It was found that CMB@1T-MoS 2 has better effect than CMB or 1T-MoS 2 alone for the degradation of DMP, reaching 77.65% at pH = 3. Under alkaline conditions, the degradation rate of DMP was reduced due to the inhibition of the catalytic process. Among the different coexisting anions, HCO-3 interfered and inhibited the degradation process the most, leading to the lowest degradation rate of DMP with 42.45%. Discussion: The quenching experiments and EPR analysis showed that SO - 4 • and •OH were the main ROS in the CMB@1T-MoS 2 /PMS process. This study promotes the resourceful use of cow manure and is expected to provide a novel persulfate-based advanced oxidation process catalyzed by CMB@1T-MoS 2 for the elimination of DMP in an aqueous environment.
More Papers Like This
Activation of peroxymonosulfate by(sunlight)FeCl3-modified biochar for efficient degradation of contaminants of emerging concern: Comparison with H2O2 and effect of microplastics
AI summary Read the abstract
Researchers investigated how microplastics affect the ability of iron-modified biochar to break down emerging contaminants in wastewater when activated by peroxymonosulfate and sunlight. Surprisingly, they found that the presence of microplastics actually enhanced the treatment efficiency by up to 42%. The study demonstrates that the coexistence of microplastics and biochar in wastewater can influence the effectiveness of advanced oxidation treatment processes.
Adsorptive Removal of Dimethyl Phthalate Using Peanut Shell Derived Biochar from Aqueous Solutions: Equilibrium, Kinetics and Mechanistic Studies.
AI summary Read the abstract
Researchers tested peanut shell-derived biochar as an adsorbent for removing dimethyl phthalate — a plastic-associated chemical — from water. The biochar showed strong adsorption performance, with removal efficiency depending on pH, contact time, and concentration. Phthalate esters leaching from plastic products are widespread environmental contaminants linked to hormonal disruption.
Efficient tetracycline hydrochloride degradation via peroxymonosulfate activation by N doped coagulated sludge based biochar: Insights on the nonradical pathway
AI summary Read the abstract
Researchers found a way to repurpose waste sludge from microplastic removal processes by converting it into a nitrogen-doped carbon material that can break down the antibiotic tetracycline in water. The recycled material performed well across a wide pH range and worked primarily through a nonradical pathway to degrade the antibiotic. The study offers a dual benefit approach that addresses both microplastic waste management and antibiotic contamination in water systems.
Urban wastewater disinfection by FeCl3-activated biochar/peroxymonosulfate system: Escherichia coli inactivation and microplastics interference
AI summary Read the abstract
This study evaluated FeCl3-activated biochar combined with peroxymonosulfate as a system for urban wastewater disinfection, assessing pathogen removal efficiency and identifying reactive species responsible for bacterial inactivation.
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.