Electrochemically assisted production of biogenic palladium nanoparticles for the catalytic removal of micropollutants in wastewater treatment plants effluent  

作　　者：Cindy Ka Y Law Kankana Kundu Luiza Bonin Lorena Peñcoba-Antona Eduardo Bolea-Fernandez Frank Vanhaecke Korneel Rabaey Abraham Esteve-Nez Bart De Gusseme Nico Boon 

机构地区：[1]Center for Microbial Ecology and Technology(CMET),Ghent University,Coupure Links 653,B-9000 Gent,Belgium [2]Centre for Advanced Process Technology for Urban Resource recovery(CAPTURE),P.O.Frieda Saeysstraat 1,B-9000 Gent,Belgium [3]METfilter S.L.,Autovía A49 Sevilla-Huelva Km 28,41820 Carrión de los Céspedes,Sevilla,Spain [4]IMDEA Water Institute,Av.Punto Com,2,Parque Científico Tecnológico,28805 Alcaláde Henares,Madrid,Spain [5]Atomic&Mass Spectrometry(A&MS)research group,Department of Chemistry,Ghent University,Campus Sterre,Krijgslaan 281-S12,B-9000 Ghent,Belgium [6]Universidad de Alcalá,Department of Analytical Chemistry,Physical Chemistry and Chemical Engineering,Ctra.Madrid-Barcelona Km 33.600,28871 Alcaláde Henares,Madrid,Spain

出　　处：《Journal of Environmental Sciences》2023年第6期203-212,共10页环境科学学报（英文版）

基　　金：The ELECTRA project has received funding from European Union’s Horizon 2020 research and innovation programunder grant agreement No.826244;Eduardo Bolea-Fernandez thanks FWO-Vlaanderen for his postdoctoral grant(No.12ZA320N),The authors would like to thank Victor Lobanov,Mingsheng Jia,and Hira Khan for critically reading the manuscript.

摘　　要：Biogenic palladium nanoparticles(bio-Pd NPs)are used for the reductive transformation and/or dehalogenation of persistent micropollutants.In this work,H2(electron donor)was produced in situ by an electrochemical cell,permitting steered production of differently sized bio-Pd NPs.The catalytic activity was first assessed by the degradation of methyl orange.The NPs showing the highest catalytic activity were selected for the removal of micropollutants from secondary treated municipal wastewater.The synthesis at different H2 flow rates(0.310 L/hr or 0.646 L/hr)influenced the bio-Pd NPs size.The NPs produced over 6 hr at a lowH2 flow rate had a larger size(D50=39.0 nm)than those produced in 3 hr at a high H2 flow rate(D50=23.2 nm).Removal of 92.1%and 44.3%of methyl orange was obtained after 30 min for the NPs with sizes of 39.0 nm and 23.2 nm,respectively.Bio-Pd NPs of 39.0 nm were used to treat micropollutants present in secondary treated municipal wastewater at concentrations ranging fromμg/L to ng/L.Effective removal of 8 compounds was observed:ibuprofen(69.5%)<sulfamethoxazole(80.6%)<naproxen(81.4%)<furosemide(89.7%)<citalopram(91.7%)<diclofenac(91.9%)<atorvastatin(>94.3%)<lorazepam(97.2%).Re-moval of fluorinated antibiotics occurred at>90%efficiency.Overall,these data indicate that the size,and thus the catalytic activity of the NPs can be steered and that the removal of challengingmicropollutants at environmentally relevant concentrations can be achieved through the use of bio-Pd NPs.

关 键 词：ANTIBIOTICS Adsorption Biogenic palladium nanoparticles Catalytic activity H2 Secondary treated municipal wastewater 

分 类 号：X703[环境科学与工程—环境工程]