Ternary Co…Ov…Cu sites trigger Co-utilization of endogenous electron donor-acceptor for sustainable removal of refractory low-carbon fatty amines in Fenton-like system

Dai，Qin1; Yu，Guangfei1; Qi，Juanjuan1; Wang，Yanan1; Xing，Lei3; Wang，Yihao1; Zhang，Zhijie1; Zhong，Xiaolin1; Fang，Zhimo1; Du，Penghui4; Lyu，Lai2; Wang，Lidong1

2024

10.1016/j.apcatb.2023.123184

Applied Catalysis B: Environmental   影响因子和分区

0926-3373

Herein, we fabricated CoCu-0.25-O with ternary CoOCu sites through simple co-precipitation to achieve effective co-utilization of organics and dissolved oxygen (DO) as endogenous electron donor-acceptor in Fenton-like system. Around 100% of dimethylamine (DMA) min within 30 is removed. The involved kinetics (0.22 min) and oxidant utilization efficiency (22.5%) are higher than controls with binary sites. Multi-scaled characterizations and theoretical calculations reveal that electron-polarized CoOCu sites facilitate co-activation of DMA and DO as electron donor-acceptor through increasing d-band center and lowering work function of catalyst. Meanwhile, ternary sites favor O and SO generation, and shorten the migration distance of active species to pollutant, thus achieving excellent dual performance improvements. Semi-quantitative results of ESR indicate that DO activation and peroxymonosulfate (PMS) oxidation contribute about three-fourths and one-fourth to O production, respectively. This contribution provides a new and sustainable strategy for high-efficiency and oxidant-saving removal of refractory pollutants in the environment.

Dimethylamine Fenton-like reaction O2 activation Oxidant utilization efficiency Ternary Co…Ov…Cu sites

EI

英语

其他

National Natural Science Foundation of China[52122009];National Natural Science Foundation of China[52200126, 51878273,];Natural Science Foundation of Hebei Province[E2019502199];

CHEMISTRY

2-s2.0-85168449475

Scopus

1.MOE Key Laboratory of Resources and Environmental Systems Optimization,College of Environmental Science and Engineering,North China Electric Power University,Beijing,102206,China
2.Institute of Environmental Research at Greater Bay Area; Key Laboratory for Water Quality and Conservation of the Pearl River Delta,Ministry of Education,Guangzhou University,Guangzhou,510006,China
3.State Key Joint Laboratory of Environment Simulation and Pollution Control,School of Environment,Tsinghua University,Beijing,100084,China
4.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Dai，Qin,Yu，Guangfei,Qi，Juanjuan,等. Ternary Co…Ov…Cu sites trigger Co-utilization of endogenous electron donor-acceptor for sustainable removal of refractory low-carbon fatty amines in Fenton-like system[J]. Applied Catalysis B: Environmental,2024,340.

Dai，Qin.,Yu，Guangfei.,Qi，Juanjuan.,Wang，Yanan.,Xing，Lei.,...&Wang，Lidong.(2024).Ternary Co…Ov…Cu sites trigger Co-utilization of endogenous electron donor-acceptor for sustainable removal of refractory low-carbon fatty amines in Fenton-like system.Applied Catalysis B: Environmental,340.

Dai，Qin,et al."Ternary Co…Ov…Cu sites trigger Co-utilization of endogenous electron donor-acceptor for sustainable removal of refractory low-carbon fatty amines in Fenton-like system".Applied Catalysis B: Environmental 340(2024).