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Creation of Pd/Al2O3 Catalyst by a Spray Process for Fixed Bed Reactors and Its Effective Removal of Aqueous Bromate
Gao, Yu; Sun, Wuzhu; Yang, Weiyi; Li, Qi; Li, Q (reprint author), Chinese Acad Sci, Inst Met Res, Environm Funct Mat Div, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
2017-02-02
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume7Pages:-
AbstractPalladium nanoparticles were grown on sub-millimeter activated Al2O3 particle support by spraying H2PdCl4 solution evenly onto the support, followed with a thermal reduction under H-2 atmosphere. Compared with its counterpart created by the conventional impregnation method, the Pd/Al2O3 catalyst created by the spray process could enrich the existence of active Pd nanoparticles on the surface of the catalyst support and increase their degree of dispersion, resulting in a much higher activity in the catalytic reduction of bromate in water. The effect of Al2O3 support particle size on the bromate removal rate was also investigated, which demonstrated that smaller support particle size could have higher activity in the catalytic reduction of bromate in water because of its larger exposed surface. This Pd/Al2O3 catalyst could be easily used in the fixed bed reactor due to its large support size and demonstrated excellent stability in the catalytic reduction of bromate in mineral water. This Pd/Al2O3 catalyst also exhibited a good catalytic reduction performance on azo dyes as demonstrated by its effective catalytic hydrogenation of methyl orange. Thus, catalysts prepared by the spray method developed in this work could have the potential to be used in fixed bed reactors for various water treatment practices.; Palladium nanoparticles were grown on sub-millimeter activated Al2O3 particle support by spraying H2PdCl4 solution evenly onto the support, followed with a thermal reduction under H-2 atmosphere. Compared with its counterpart created by the conventional impregnation method, the Pd/Al2O3 catalyst created by the spray process could enrich the existence of active Pd nanoparticles on the surface of the catalyst support and increase their degree of dispersion, resulting in a much higher activity in the catalytic reduction of bromate in water. The effect of Al2O3 support particle size on the bromate removal rate was also investigated, which demonstrated that smaller support particle size could have higher activity in the catalytic reduction of bromate in water because of its larger exposed surface. This Pd/Al2O3 catalyst could be easily used in the fixed bed reactor due to its large support size and demonstrated excellent stability in the catalytic reduction of bromate in mineral water. This Pd/Al2O3 catalyst also exhibited a good catalytic reduction performance on azo dyes as demonstrated by its effective catalytic hydrogenation of methyl orange. Thus, catalysts prepared by the spray method developed in this work could have the potential to be used in fixed bed reactors for various water treatment practices.
description.department[gao, yu ; sun, wuzhu ; yang, weiyi ; li, qi] chinese acad sci, inst met res, environm funct mat div, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [gao, yu] china acad engn phys, inst mat, mianyang 621900, peoples r china ; [sun, wuzhu] shandong univ technol, sch mat sci & engn, zibo 255000, peoples r china
Subject AreaMultidisciplinary Sciences
Funding OrganizationBasic Science Innovation Program of Shenyang National Laboratory for Materials Science [Y4N56R1161, Y4N56F2161]; National Natural Science Foundation of China [51502305]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78298
Collection中国科学院金属研究所
Corresponding AuthorLi, Q (reprint author), Chinese Acad Sci, Inst Met Res, Environm Funct Mat Div, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Gao, Yu,Sun, Wuzhu,Yang, Weiyi,et al. Creation of Pd/Al2O3 Catalyst by a Spray Process for Fixed Bed Reactors and Its Effective Removal of Aqueous Bromate[J]. SCIENTIFIC REPORTS,2017,7:-.
APA Gao, Yu,Sun, Wuzhu,Yang, Weiyi,Li, Qi,&Li, Q .(2017).Creation of Pd/Al2O3 Catalyst by a Spray Process for Fixed Bed Reactors and Its Effective Removal of Aqueous Bromate.SCIENTIFIC REPORTS,7,-.
MLA Gao, Yu,et al."Creation of Pd/Al2O3 Catalyst by a Spray Process for Fixed Bed Reactors and Its Effective Removal of Aqueous Bromate".SCIENTIFIC REPORTS 7(2017):-.
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