Boosting the Photothermal Oxidation of Multicomponent VOCs in Humid Conditions: Synergistic Mechanism of Mn and K in Different Oxygen Activation Pathways DOI
Yang Yang, Fukun Bi, Jiafeng Wei

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: May 29, 2025

The complexity of actual industrial emissions has brought significant challenges for volatile organic compounds (VOCs) purification. Herein, Mn and K atoms were incorporated into Co3O4/TiO2 through theoretical study, its excellent properties verified in experiments. different pathways oxygen activation by revealed characterization experiments calculations. species effectually reduced the dissociation energy barrier H2O adsorbed on surface, surface hydroxyl group promoted O2 formation •O2- under light humid conditions. introduction more vacancies, which served as adsorption sites gaseous O2. Meanwhile, electron transfer accelerated contributed to rapid production •OH light. synergistic effect successfully achieved simultaneous improvements activity, stability, water resistance Co3O4/TiO2. Furthermore, catalyst was applied degradation multicomponent VOCs, reaction path analyzed test intermediates, along with an investigation interaction among types VOCs. This study provided a new idea optimization polymetallic catalysts analysis paths

Language: Английский

Degradation of volatile organic pollutants over manganese-based catalysts by defect engineering: A review DOI
Lei Guo, Fukun Bi, Ning Liu

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131934 - 131934

Published: Feb. 1, 2025

Language: Английский

Citations

5
Extrapolative-machine-learning-guided discovery of multi-elemental heterogeneous catalysts for low-temperature NO reduction by H2 DOI Creative Commons
Yuan Jing, Chenyang Zhang,

Mine Shinya

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract Selective catalytic reduction of NOx with hydrogen (H2-SCR) in the presence oxygen is an environmentally friendly and sustainable emission control technology that has attracted considerable attention. However, even most promising currently available catalysts are not sufficiently active to effectively promote this reaction, particularly at low temperatures (< 150°C). Therefore, there urgent need for development highly H2-SCR catalysts. Although data-science approaches, including machine learning (ML), have been suggested accelerate such important processes, discovery unique using ML remains limited. This limitation stems from a common criticism ML, namely, its perceived inability extrapolate identify extraordinary materials. Herein, we present extrapolative approach new multi-elemental Starting 45 as initial dataset, employed closed-loop system combined predictions experimental validation over 24 iterative cycles. process enabled testing 425 catalysts, ultimate identification several superior activity (average N₂ yield, %) previously reported high-performance temperature range 50–150°C. The optimal catalyst was found be Pt(1.3)-Ir(0.2)/Ba(1.5)-Co(1)/H-ZSM-5(11). Notably, Co absent original composition could predicted by human experts.

Language: Английский

Citations

0
Identification of active sites and mechanism of CO2 methanation over Ni/CeO2 catalysts DOI
Zhaorui Zhang, Zhaohui Li, Xiao Han

et al.

Journal of Rare Earths, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Reductive decomposition of nitrous oxide with hydrogen at room temperature over iridium nanoparticles highly dispersed on silica DOI

Kana Sato,

Sora Momma,

Young‐Wook Song

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: 13(3), P. 116922 - 116922

Published: May 5, 2025

Language: Английский

Citations

0
Fabrication of Silver-Incorporated Zn-Al Layered Double Hydroxide: Characterization and Bromide-Adsorption Performance DOI Open Access
Aiman Eid Al‐Rawajfeh, Albara Ibrahim Alrawashdeh,

Mohammad Taha Etiwi

et al.

Water, Journal Year: 2025, Volume and Issue: 17(11), P. 1578 - 1578

Published: May 23, 2025

In this study, a novel adsorbent was developed by synthesizing Zn-Al layered double hydroxide (LDH) incorporated with silver nanoparticles (Ag-NPs), and its effectiveness in bromide removal from aqueous solutions systematically evaluated. The X-ray Diffraction (XRD) Fourier Transform Infrared Spectroscopy (FTIR) analyses confirmed the integration of Ag-NPs within LDH, ensuring uniform chemical composition structural integrity. A series controlled batch trials, each varying single parameter (adsorbent dose, contact time, or temperature) that over 95% (initially 5320 μg/L) removed under optimized conditions. LDH/Ag-NPs exhibited superior performance, kinetics well described second-order reaction model. Thermodynamic analysis spontaneous exothermic nature adsorption, ΔG° values ranging −2.03 to −0.73 kJ/mol as temperature increased 22 °C 52 °C. continuous-flow experiments, packed-bed column tests illustrated maintained more effective than LDH alone extended periods. Conductivity measurements further supported enhancement, reducing final conductivity 139 µS/cm, compared 212 µS/cm for LDH. Furthermore, study revealed notable antimicrobial activity LDH/Ag-NPs, evidenced significant reduction bacterial growth alone, highlighting dual functionality both adsorption water disinfection. Overall, incorporation into offers promising strategy developing multifunctional sustainable treatment systems.

Language: Английский

Citations

0
Boosting the Photothermal Oxidation of Multicomponent VOCs in Humid Conditions: Synergistic Mechanism of Mn and K in Different Oxygen Activation Pathways DOI
Yang Yang, Fukun Bi, Jiafeng Wei

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: May 29, 2025

The complexity of actual industrial emissions has brought significant challenges for volatile organic compounds (VOCs) purification. Herein, Mn and K atoms were incorporated into Co3O4/TiO2 through theoretical study, its excellent properties verified in experiments. different pathways oxygen activation by revealed characterization experiments calculations. species effectually reduced the dissociation energy barrier H2O adsorbed on surface, surface hydroxyl group promoted O2 formation •O2- under light humid conditions. introduction more vacancies, which served as adsorption sites gaseous O2. Meanwhile, electron transfer accelerated contributed to rapid production •OH light. synergistic effect successfully achieved simultaneous improvements activity, stability, water resistance Co3O4/TiO2. Furthermore, catalyst was applied degradation multicomponent VOCs, reaction path analyzed test intermediates, along with an investigation interaction among types VOCs. This study provided a new idea optimization polymetallic catalysts analysis paths

Language: Английский

Citations

0